801 lines
22 KiB
Groff
801 lines
22 KiB
Groff
.\" Copyright (c) 2003-2008 Joseph Koshy. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" This software is provided by Joseph Koshy ``as is'' and
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.\" any express or implied warranties, including, but not limited to, the
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.\" implied warranties of merchantability and fitness for a particular purpose
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.\" are disclaimed. in no event shall Joseph Koshy be liable
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.\" for any direct, indirect, incidental, special, exemplary, or consequential
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.\" damages (including, but not limited to, procurement of substitute goods
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.\" or services; loss of use, data, or profits; or business interruption)
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.\" however caused and on any theory of liability, whether in contract, strict
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.\" liability, or tort (including negligence or otherwise) arising in any way
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.\" out of the use of this software, even if advised of the possibility of
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.\" such damage.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd October 4, 2008
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.Os
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.Dt PMC.K8 3
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.Sh NAME
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.Nm pmc.k8
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.Nd measurement events for
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.Tn AMD
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.Tn Athlon 64
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(K8 family) CPUs
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.Sh LIBRARY
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.Lb libpmc
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.Sh SYNOPSIS
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.In pmc.h
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.Sh DESCRIPTION
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AMD K8 PMCs are present in the
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.Tn "AMD Athlon64"
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and
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.Tn "AMD Opteron"
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series of CPUs.
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They are documented in the
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.Rs
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.%B "BIOS and Kernel Developer's Guide for the AMD Athlon(tm) 64 and AMD Opteron Processors"
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.%N "Publication No. 26094"
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.%D "April 2004"
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.%Q "Advanced Micro Devices, Inc."
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.Re
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.Ss PMC Features
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AMD K8 PMCs are 48 bits wide.
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Each CPU contains 4 PMCs with the following capabilities:
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.Bl -column "PMC_CAP_INTERRUPT" "Support"
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.It Em Capability Ta Em Support
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.It PMC_CAP_CASCADE Ta \&No
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.It PMC_CAP_EDGE Ta Yes
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.It PMC_CAP_INTERRUPT Ta Yes
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.It PMC_CAP_INVERT Ta Yes
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.It PMC_CAP_READ Ta Yes
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.It PMC_CAP_PRECISE Ta \&No
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.It PMC_CAP_SYSTEM Ta Yes
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.It PMC_CAP_TAGGING Ta \&No
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.It PMC_CAP_THRESHOLD Ta Yes
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.It PMC_CAP_USER Ta Yes
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.It PMC_CAP_WRITE Ta Yes
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.El
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.Ss Event Qualifiers
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.Pp
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Event specifiers for AMD K8 PMCs can have the following optional
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qualifiers:
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.Bl -tag -width indent
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.It Li count= Ns Ar value
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Configure the counter to increment only if the number of configured
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events measured in a cycle is greater than or equal to
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.Ar value .
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.It Li edge
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Configure the counter to only count negated-to-asserted transitions
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of the conditions expressed by the other fields.
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In other words, the counter will increment only once whenever a given
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condition becomes true, irrespective of the number of clocks during
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which the condition remains true.
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.It Li inv
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Invert the sense of comparison when the
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.Dq Li count
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qualifier is present, making the counter to increment when the
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number of events per cycle is less than the value specified by
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the
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.Dq Li count
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qualifier.
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.It Li mask= Ns Ar qualifier
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Many event specifiers for AMD K8 PMCs need to be additionally
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qualified using a mask qualifier.
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These additional qualifiers are event-specific and are documented
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along with their associated event specifiers below.
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.It Li os
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Configure the PMC to count events happening at privilege level 0.
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.It Li usr
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Configure the PMC to count events occurring at privilege levels 1, 2
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or 3.
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.El
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.Pp
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If neither of the
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.Dq Li os
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or
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.Dq Li usr
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qualifiers were specified, the default is to enable both.
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.Ss AMD K8 Event Specifiers
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The event specifiers supported on AMD K8 PMCs are:
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.Bl -tag -width indent
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.It Li k8-bu-cpu-clk-unhalted
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.Pq Event 76H
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Count the number of clock cycles when the CPU is not in the HLT or
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STPCLK states.
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.It Li k8-bu-fill-request-l2-miss Op Li ,mask= Ns Ar qualifier
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.Pq Event 7EH
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Count fill requests that missed in the L2 cache.
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This event may be further qualified using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li dc-fill
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Count data cache fill requests.
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.It Li ic-fill
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Count instruction cache fill requests.
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.It Li tlb-reload
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Count TLB reloads.
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.El
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.Pp
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The default is to count all types of requests.
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.It Li k8-bu-fill-into-l2 Op Li ,mask= Ns Ar qualifier
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.Pq Event 7FH
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The number of lines written to and from the L2 cache.
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The event may be further qualified by using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li dirty-l2-victim
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Count lines written into L2 cache due to victim writebacks from the
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Icache or Dcache, TLB page table walks or hardware data prefetches.
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.It Li victim-from-l2
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Count writebacks of dirty lines from L2 to the system.
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.El
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.It Li k8-bu-internal-l2-request Op Li ,mask= Ns Ar qualifier
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.Pq Event 7DH
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Count internally generated requests to the L2 cache.
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This event may be further qualified using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li cancelled
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Count cancelled requests.
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.It Li dc-fill
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Count data cache fill requests.
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.It Li ic-fill
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Count instruction cache fill requests.
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.It Li tag-snoop
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Count tag snoop requests.
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.It Li tlb-reload
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Count TLB reloads.
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.El
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.Pp
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The default is to count all types of requests.
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.It Li k8-dc-access
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.Pq Event 40H
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Count data cache accesses including microcode scratch pad accesses.
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.It Li k8-dc-copyback Op Li ,mask= Ns Ar qualifier
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.Pq Event 44H
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Count data cache copyback operations.
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This event may be further qualified using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li exclusive
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Count operations for lines in the
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.Dq exclusive
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state.
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.It Li invalid
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Count operations for lines in the
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.Dq invalid
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state.
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.It Li modified
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Count operations for lines in the
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.Dq modified
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state.
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.It Li owner
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Count operations for lines in the
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.Dq owner
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state.
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.It Li shared
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Count operations for lines in the
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.Dq shared
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state.
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.El
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.Pp
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The default is to count operations for lines in all the
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above states.
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.It Li k8-dc-dcache-accesses-by-locks Op Li ,mask= Ns Ar qualifier
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.Pq Event 4CH
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Count data cache accesses by lock instructions.
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This event is only available on processors of revision C or later
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vintage.
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This event may be further qualified using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li accesses
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Count data cache accesses by lock instructions.
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.It Li misses
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Count data cache misses by lock instructions.
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.El
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.Pp
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The default is to count all accesses.
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.It Li k8-dc-dispatched-prefetch-instructions Op Li ,mask= Ns Ar qualifier
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.Pq Event 4BH
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Count the number of dispatched prefetch instructions.
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This event may be further qualified using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li load
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Count load operations.
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.It Li nta
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Count non-temporal operations.
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.It Li store
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Count store operations.
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.El
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.Pp
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The default is to count all operations.
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.It Li k8-dc-l1-dtlb-miss-and-l2-dtlb-hit
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.Pq Event 45H
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Count L1 DTLB misses that are L2 DTLB hits.
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.It Li k8-dc-l1-dtlb-miss-and-l2-dtlb-miss
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.Pq Event 46H
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Count L1 DTLB misses that are also misses in the L2 DTLB.
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.It Li k8-dc-microarchitectural-early-cancel-of-an-access
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.Pq Event 49H
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Count microarchitectural early cancels of data cache accesses.
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.It Li k8-dc-microarchitectural-late-cancel-of-an-access
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.Pq Event 48H
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Count microarchitectural late cancels of data cache accesses.
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.It Li k8-dc-misaligned-data-reference
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.Pq Event 47H
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Count misaligned data references.
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.It Li k8-dc-miss
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.Pq Event 41H
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Count data cache misses.
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.It Li k8-dc-one-bit-ecc-error Op Li ,mask= Ns Ar qualifier
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.Pq Event 4AH
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Count one bit ECC errors found by the scrubber.
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This event may be further qualified using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li scrubber
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Count scrubber detected errors.
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.It Li piggyback
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Count piggyback scrubber errors.
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.El
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.Pp
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The default is to count both kinds of errors.
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.It Li k8-dc-refill-from-l2 Op Li ,mask= Ns Ar qualifier
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.Pq Event 42H
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Count data cache refills from L2 cache.
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This event may be further qualified using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li exclusive
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Count operations for lines in the
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.Dq exclusive
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state.
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.It Li invalid
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Count operations for lines in the
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.Dq invalid
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state.
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.It Li modified
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Count operations for lines in the
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.Dq modified
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state.
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.It Li owner
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Count operations for lines in the
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.Dq owner
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state.
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.It Li shared
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Count operations for lines in the
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.Dq shared
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state.
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.El
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.Pp
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The default is to count operations for lines in all the
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above states.
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.It Li k8-dc-refill-from-system Op Li ,mask= Ns Ar qualifier
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.Pq Event 43H
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Count data cache refills from system memory.
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This event may be further qualified using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li exclusive
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Count operations for lines in the
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.Dq exclusive
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state.
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.It Li invalid
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Count operations for lines in the
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.Dq invalid
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state.
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.It Li modified
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Count operations for lines in the
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.Dq modified
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state.
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.It Li owner
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Count operations for lines in the
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.Dq owner
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state.
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.It Li shared
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Count operations for lines in the
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.Dq shared
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state.
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.El
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.Pp
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The default is to count operations for lines in all the
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above states.
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.It Li k8-fp-cycles-with-no-fpu-ops-retired
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.Pq Event 01H
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Count cycles when no FPU ops were retired.
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This event is supported in revision B and later CPUs.
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.It Li k8-fp-dispatched-fpu-fast-flag-ops
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.Pq Event 02H
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Count dispatched FPU ops that use the fast flag interface.
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This event is supported in revision B and later CPUs.
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.It Li k8-fp-dispatched-fpu-ops Op Li ,mask= Ns Ar qualifier
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.Pq Event 00H
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Count the number of dispatched FPU ops.
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This event is supported in revision B and later CPUs.
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This event may be further qualified using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li add-pipe-excluding-junk-ops
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Count add pipe ops excluding junk ops.
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.It Li add-pipe-junk-ops
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Count junk ops in the add pipe.
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.It Li multiply-pipe-excluding-junk-ops
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Count multiply pipe ops excluding junk ops.
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.It Li multiply-pipe-junk-ops
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Count junk ops in the multiply pipe.
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.It Li store-pipe-excluding-junk-ops
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Count store pipe ops excluding junk ops
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.It Li store-pipe-junk-ops
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Count junk ops in the store pipe.
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.El
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.Pp
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The default is to count all types of ops.
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.It Li k8-fr-decoder-empty
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.Pq Event D0H
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Count cycles when there was nothing to dispatch (i.e., the decoder
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was empty).
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.It Li k8-fr-dispatch-stall-for-segment-load
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.Pq Event D4H
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Count dispatch stalls for segment loads.
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.It Li k8-fr-dispatch-stall-for-serialization
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.Pq Event D3H
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Count dispatch stalls for serialization.
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.It Li k8-fr-dispatch-stall-from-branch-abort-to-retire
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.Pq Event D2H
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Count dispatch stalls from branch abort to retiral.
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.It Li k8-fr-dispatch-stall-when-fpu-is-full
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.Pq Event D7H
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Count dispatch stalls when the FPU is full.
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.It Li k8-fr-dispatch-stall-when-ls-is-full
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.Pq Event D8H
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Count dispatch stalls when the load/store unit is full.
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.It Li k8-fr-dispatch-stall-when-reorder-buffer-is-full
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.Pq Event D5H
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Count dispatch stalls when the reorder buffer is full.
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.It Li k8-fr-dispatch-stall-when-reservation-stations-are-full
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.Pq Event D6H
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Count dispatch stalls when reservation stations are full.
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.It Li k8-fr-dispatch-stall-when-waiting-far-xfer-or-resync-branch-pending
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.Pq Event DAH
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Count dispatch stalls when a far control transfer or a resync branch
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is pending.
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.It Li k8-fr-dispatch-stall-when-waiting-for-all-to-be-quiet
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.Pq Event D9H
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Count dispatch stalls when waiting for all to be quiet.
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.\" XXX What does "waiting for all to be quiet" mean?
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.It Li k8-fr-dispatch-stalls
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.Pq Event D1H
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Count all dispatch stalls.
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.It Li k8-fr-fpu-exceptions Op Li ,mask= Ns Ar qualifier
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.Pq Event DBH
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Count FPU exceptions.
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This event is supported in revision B and later CPUs.
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This event may be further qualified using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li sse-and-x87-microtraps
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Count SSE and x87 microtraps.
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.It Li sse-reclass-microfaults
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Count SSE reclass microfaults
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.It Li sse-retype-microfaults
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Count SSE retype microfaults
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.It Li x87-reclass-microfaults
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Count x87 reclass microfaults.
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.El
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.Pp
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The default is to count all types of exceptions.
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.It Li k8-fr-interrupts-masked-cycles
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.Pq Event CDH
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Count cycles when interrupts were masked (by CPU RFLAGS field IF was zero).
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.It Li k8-fr-interrupts-masked-while-pending-cycles
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.Pq Event CEH
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Count cycles while interrupts were masked while pending (i.e., cycles
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when INTR was asserted while CPU RFLAGS field IF was zero).
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.It Li k8-fr-number-of-breakpoints-for-dr0
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.Pq Event DCH
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Count the number of breakpoints for DR0.
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.It Li k8-fr-number-of-breakpoints-for-dr1
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.Pq Event DDH
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Count the number of breakpoints for DR1.
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.It Li k8-fr-number-of-breakpoints-for-dr2
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.Pq Event DEH
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Count the number of breakpoints for DR2.
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.It Li k8-fr-number-of-breakpoints-for-dr3
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.Pq Event DFH
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Count the number of breakpoints for DR3.
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.It Li k8-fr-retired-branches
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.Pq Event C2H
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Count retired branches including exceptions and interrupts.
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.It Li k8-fr-retired-branches-mispredicted
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.Pq Event C3H
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Count mispredicted retired branches.
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.It Li k8-fr-retired-far-control-transfers
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.Pq Event C6H
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Count retired far control transfers (which are always mispredicted).
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.It Li k8-fr-retired-fastpath-double-op-instructions Op Li ,mask= Ns Ar qualifier
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.Pq Event CCH
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Count retired fastpath double op instructions.
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This event is supported in revision B and later CPUs.
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This event may be further qualified using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li low-op-pos-0
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Count instructions with the low op in position 0.
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.It Li low-op-pos-1
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Count instructions with the low op in position 1.
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.It Li low-op-pos-2
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Count instructions with the low op in position 2.
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.El
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.Pp
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The default is to count all types of instructions.
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.It Li k8-fr-retired-fpu-instructions Op Li ,mask= Ns Ar qualifier
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.Pq Event CBH
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Count retired FPU instructions.
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This event is supported in revision B and later CPUs.
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This event may be further qualified using
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.Ar qualifier ,
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which is a
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.Ql +
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separated set of the following keywords:
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.Pp
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.Bl -tag -width indent -compact
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.It Li mmx-3dnow
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|
Count MMX and 3DNow!\& instructions.
|
|
.It Li packed-sse-sse2
|
|
Count packed SSE and SSE2 instructions.
|
|
.It Li scalar-sse-sse2
|
|
Count scalar SSE and SSE2 instructions
|
|
.It Li x87
|
|
Count x87 instructions.
|
|
.El
|
|
.Pp
|
|
The default is to count all types of instructions.
|
|
.It Li k8-fr-retired-near-returns
|
|
.Pq Event C8H
|
|
Count retired near returns.
|
|
.It Li k8-fr-retired-near-returns-mispredicted
|
|
.Pq Event C9H
|
|
Count mispredicted near returns.
|
|
.It Li k8-fr-retired-resyncs
|
|
.Pq Event C7H
|
|
Count retired resyncs (non-control transfer branches).
|
|
.It Li k8-fr-retired-taken-branches
|
|
.Pq Event C4H
|
|
Count retired taken branches.
|
|
.It Li k8-fr-retired-taken-branches-mispredicted
|
|
.Pq Event C5H
|
|
Count retired taken branches that were mispredicted.
|
|
.It Li k8-fr-retired-taken-branches-mispredicted-by-addr-miscompare
|
|
.Pq Event CAH
|
|
Count retired taken branches that were mispredicted only due to an
|
|
address miscompare.
|
|
.It Li k8-fr-retired-taken-hardware-interrupts
|
|
.Pq Event CFH
|
|
Count retired taken hardware interrupts.
|
|
.It Li k8-fr-retired-uops
|
|
.Pq Event C1H
|
|
Count retired uops.
|
|
.It Li k8-fr-retired-x86-instructions
|
|
.Pq Event C0H
|
|
Count retired x86 instructions including exceptions and interrupts.
|
|
.It Li k8-ic-fetch
|
|
.Pq Event 80H
|
|
Count instruction cache fetches.
|
|
.It Li k8-ic-instruction-fetch-stall
|
|
.Pq Event 87H
|
|
Count cycles in stalls due to instruction fetch.
|
|
.It Li k8-ic-l1-itlb-miss-and-l2-itlb-hit
|
|
.Pq Event 84H
|
|
Count L1 ITLB misses that are L2 ITLB hits.
|
|
.It Li k8-ic-l1-itlb-miss-and-l2-itlb-miss
|
|
.Pq Event 85H
|
|
Count ITLB misses that miss in both L1 and L2 ITLBs.
|
|
.It Li k8-ic-microarchitectural-resync-by-snoop
|
|
.Pq Event 86H
|
|
Count microarchitectural resyncs caused by snoops.
|
|
.It Li k8-ic-miss
|
|
.Pq Event 81H
|
|
Count instruction cache misses.
|
|
.It Li k8-ic-refill-from-l2
|
|
.Pq Event 82H
|
|
Count instruction cache refills from L2 cache.
|
|
.It Li k8-ic-refill-from-system
|
|
.Pq Event 83H
|
|
Count instruction cache refills from system memory.
|
|
.It Li k8-ic-return-stack-hits
|
|
.Pq Event 88H
|
|
Count hits to the return stack.
|
|
.It Li k8-ic-return-stack-overflow
|
|
.Pq Event 89H
|
|
Count overflows of the return stack.
|
|
.It Li k8-ls-buffer2-full
|
|
.Pq Event 23H
|
|
Count load/store buffer2 full events.
|
|
.It Li k8-ls-locked-operation Op Li ,mask= Ns Ar qualifier
|
|
.Pq Event 24H
|
|
Count locked operations.
|
|
For revision C and later CPUs, the following qualifiers are supported:
|
|
.Pp
|
|
.Bl -tag -width indent -compact
|
|
.It Li cycles-in-request
|
|
Count the number of cycles in the lock request/grant stage.
|
|
.It Li cycles-to-complete
|
|
Count the number of cycles a lock takes to complete once it is
|
|
non-speculative and is the older load/store operation.
|
|
.It Li locked-instructions
|
|
Count the number of lock instructions executed.
|
|
.El
|
|
.Pp
|
|
The default is to count the number of lock instructions executed.
|
|
.It Li k8-ls-microarchitectural-late-cancel
|
|
.Pq Event 25H
|
|
Count microarchitectural late cancels of operations in the load/store
|
|
unit.
|
|
.It Li k8-ls-microarchitectural-resync-by-self-modifying-code
|
|
.Pq Event 21H
|
|
Count microarchitectural resyncs caused by self-modifying code.
|
|
.It Li k8-ls-microarchitectural-resync-by-snoop
|
|
.Pq Event 22H
|
|
Count microarchitectural resyncs caused by snoops.
|
|
.It Li k8-ls-retired-cflush-instructions
|
|
.Pq Event 26H
|
|
Count retired CFLUSH instructions.
|
|
.It Li k8-ls-retired-cpuid-instructions
|
|
.Pq Event 27H
|
|
Count retired CPUID instructions.
|
|
.It Li k8-ls-segment-register-load Op Li ,mask= Ns Ar qualifier
|
|
.Pq Event 20H
|
|
Count segment register loads.
|
|
This event may be further qualified using
|
|
.Ar qualifier ,
|
|
which is a
|
|
.Ql +
|
|
separated set of the following keywords:
|
|
.Bl -tag -width indent -compact
|
|
.It Li cs
|
|
Count CS register loads.
|
|
.It Li ds
|
|
Count DS register loads.
|
|
.It Li es
|
|
Count ES register loads.
|
|
.It Li fs
|
|
Count FS register loads.
|
|
.It Li gs
|
|
Count GS register loads.
|
|
.\" .It Li hs
|
|
.\" Count HS register loads.
|
|
.\" XXX "HS" register?
|
|
.It Li ss
|
|
Count SS register loads.
|
|
.El
|
|
.Pp
|
|
The default is to count all types of loads.
|
|
.It Li k8-nb-ht-bus0-bandwidth Op Li ,mask= Ns Ar qualifier
|
|
.It Li k8-nb-ht-bus1-bandwidth Op Li ,mask= Ns Ar qualifier
|
|
.It Li k8-nb-ht-bus2-bandwidth Op Li ,mask= Ns Ar qualifier
|
|
.Pq Events F6H, F7H and F8H respectively
|
|
Count events on the HyperTransport(tm) buses.
|
|
These events may be further qualified using
|
|
.Ar qualifier ,
|
|
which is a
|
|
.Ql +
|
|
separated set of the following keywords:
|
|
.Pp
|
|
.Bl -tag -width indent -compact
|
|
.It Li buffer-release
|
|
Count buffer release messages sent.
|
|
.It Li command
|
|
Count command messages sent.
|
|
.It Li data
|
|
Count data messages sent.
|
|
.It Li nop
|
|
Count nop messages sent.
|
|
.El
|
|
.Pp
|
|
The default is to count all types of messages.
|
|
.It Li k8-nb-memory-controller-bypass-saturation Op Li ,mask= Ns Ar qualifier
|
|
.Pq Event E4H
|
|
Count memory controller bypass counter saturation events.
|
|
This event may be further qualified using
|
|
.Ar qualifier ,
|
|
which is a
|
|
.Ql +
|
|
separated set of the following keywords:
|
|
.Pp
|
|
.Bl -tag -width indent -compact
|
|
.It Li dram-controller-interface-bypass
|
|
Count DRAM controller interface bypass.
|
|
.It Li dram-controller-queue-bypass
|
|
Count DRAM controller queue bypass.
|
|
.It Li memory-controller-hi-pri-bypass
|
|
Count memory controller high priority bypasses.
|
|
.It Li memory-controller-lo-pri-bypass
|
|
Count memory controller low priority bypasses.
|
|
.El
|
|
.Pp
|
|
.It Li k8-nb-memory-controller-dram-slots-missed
|
|
.Pq Event E2H
|
|
Count memory controller DRAM command slots missed (in MemClks).
|
|
.It Li k8-nb-memory-controller-page-access-event Op Li ,mask= Ns Ar qualifier
|
|
.Pq Event E0H
|
|
Count memory controller page access events.
|
|
This event may be further qualified using
|
|
.Ar qualifier ,
|
|
which is a
|
|
.Ql +
|
|
separated set of the following keywords:
|
|
.Pp
|
|
.Bl -tag -width indent -compact
|
|
.It Li page-conflict
|
|
Count page conflicts.
|
|
.It Li page-hit
|
|
Count page hits.
|
|
.It Li page-miss
|
|
Count page misses.
|
|
.El
|
|
.Pp
|
|
The default is to count all types of events.
|
|
.It Li k8-nb-memory-controller-page-table-overflow
|
|
.Pq Event E1H
|
|
Count memory control page table overflow events.
|
|
.It Li k8-nb-memory-controller-turnaround Op Li ,mask= Ns Ar qualifier
|
|
.Pq Event E3H
|
|
Count memory control turnaround events.
|
|
This event may be further qualified using
|
|
.Ar qualifier ,
|
|
which is a
|
|
.Ql +
|
|
separated set of the following keywords:
|
|
.Pp
|
|
.Bl -tag -width indent -compact
|
|
.\" XXX doc is unclear whether these are cycle counts or event counts
|
|
.It Li dimm-turnaround
|
|
Count DIMM turnarounds.
|
|
.It Li read-to-write-turnaround
|
|
Count read to write turnarounds.
|
|
.It Li write-to-read-turnaround
|
|
Count write to read turnarounds.
|
|
.El
|
|
.Pp
|
|
The default is to count all types of events.
|
|
.It Li k8-nb-probe-result Op Li ,mask= Ns Ar qualifier
|
|
.Pq Event ECH
|
|
Count probe events.
|
|
This event may be further qualified using
|
|
.Ar qualifier ,
|
|
which is a
|
|
.Ql +
|
|
separated set of the following keywords:
|
|
.Pp
|
|
.Bl -tag -width indent -compact
|
|
.It Li probe-hit
|
|
Count all probe hits.
|
|
.It Li probe-hit-dirty-no-memory-cancel
|
|
Count probe hits without memory cancels.
|
|
.It Li probe-hit-dirty-with-memory-cancel
|
|
Count probe hits with memory cancels.
|
|
.It Li probe-miss
|
|
Count probe misses.
|
|
.El
|
|
.It Li k8-nb-sized-commands Op Li ,mask= Ns Ar qualifier
|
|
.Pq Event EBH
|
|
Count sized commands issued.
|
|
This event may be further qualified using
|
|
.Ar qualifier ,
|
|
which is a
|
|
.Ql +
|
|
separated set of the following keywords:
|
|
.Pp
|
|
.Bl -tag -width indent -compact
|
|
.It Li nonpostwrszbyte
|
|
.It Li nonpostwrszdword
|
|
.It Li postwrszbyte
|
|
.It Li postwrszdword
|
|
.It Li rdszbyte
|
|
.It Li rdszdword
|
|
.It Li rdmodwr
|
|
.El
|
|
.Pp
|
|
The default is to count all types of commands.
|
|
.El
|
|
.Ss Event Name Aliases
|
|
The following table shows the mapping between the PMC-independent
|
|
aliases supported by
|
|
.Lb libpmc
|
|
and the underlying hardware events used.
|
|
.Bl -column "branch-mispredicts" "Description"
|
|
.It Em Alias Ta Em Event
|
|
.It Li branches Ta Li k8-fr-retired-taken-branches
|
|
.It Li branch-mispredicts Ta Li k8-fr-retired-taken-branches-mispredicted
|
|
.It Li dc-misses Ta Li k8-dc-miss
|
|
.It Li ic-misses Ta Li k8-ic-miss
|
|
.It Li instructions Ta Li k8-fr-retired-x86-instructions
|
|
.It Li interrupts Ta Li k8-fr-taken-hardware-interrupts
|
|
.It Li unhalted-cycles Ta Li k8-bu-cpu-clk-unhalted
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr pmc 3 ,
|
|
.Xr pmc.atom 3 ,
|
|
.Xr pmc.core 3 ,
|
|
.Xr pmc.core2 3 ,
|
|
.Xr pmc.iaf 3 ,
|
|
.Xr pmc.k7 3 ,
|
|
.Xr pmc.p4 3 ,
|
|
.Xr pmc.p5 3 ,
|
|
.Xr pmc.p6 3 ,
|
|
.Xr pmc.tsc 3 ,
|
|
.Xr pmclog 3 ,
|
|
.Xr hwpmc 4
|
|
.Sh HISTORY
|
|
The
|
|
.Nm pmc
|
|
library first appeared in
|
|
.Fx 6.0 .
|
|
.Sh AUTHORS
|
|
The
|
|
.Lb libpmc
|
|
library was written by
|
|
.An "Joseph Koshy"
|
|
.Aq jkoshy@FreeBSD.org .
|