This change adds support for POWER8/9 performance counters.
Reviewed by: jhibbits
Sponsored by: Eldorado Research Institute (eldorado.org.br)
Differential Revision: https://reviews.freebsd.org/D26113
Use MACHINE_CPUARCH with arm64 (aarch64) when we build code that could run
on any 64-bit Arm instruction set. This will simplify checks in downstream
consumers targeting prototype instruction sets.
The only place we check for MACHINE_ARCH == aarch64 is when building the
device tree blobs. As these are targeting current generation ISAs.
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D26370
This adds support for the Cortex-A76 and Neoverse-N1 PMU counters to pmc.
While here add more PMCR_IDCODE values and check the implementers code is
correct before setting the PMU type.
Reviewed by: bz, emaste (looks reasonable to me)
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D25959
Use the existing PMC_CPUID_LEN to size pmc_cpuid in the kernel and various
buffers for reading it in libpmc. This avoids some extra syscalls and
malloc/frees.
While in here, use strlcpy to copy a user-provided cpuid string instead of
memcpy, to make sure we terminate the buffer.
Reviewed by: mav
MFC after: 1 week
Sponsored by: iXsystems, Inc.
Differential Revision: https://reviews.freebsd.org/D25679
Generate libpmc_events.c in a temporary file first and only overwrite it
if the files are actually different.
This avoids compiling and relinking the different variants of libpmc on
every incremental build.
Reviewed By: jhb
Differential Revision: https://reviews.freebsd.org/D24784
It follows the equivalent Linux change to be able to differentiate
skylakex and cascadelakex, sharing the same model but not stepping.
This fixes skylakex handling broken by r363144.
MFC after: 6 days
To make the PMC tool pmcstat working properly on Hygon platform, add
support for Hygon Dhyana family 18h by using the PMC initialization
code path of AMD family 17h.
Submitted by: Pu Wen <puwen@hygon.cn>
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D23562
arichardson has an actual fix for the same issue that this was working
around; given that we don't build with llvm today, go ahead and revert the
workaround in advance.
libmagic only depend on mkmagic if not DIRDEPS_BUILD
libpmc fix -I for libpmcstat
local.dirdeps.mk be even more careful about adding gnu/lib/csu to DIRDEPS
Reviewed by: bdrewery
Differential Revision: https://reviews.freebsd.org/D22872
The jevents tool includes a copy of the jsmn json parser which is MIT
licensed. Upstream the MIT license appears in the jsmn.c source and a
standalone LICENSE file, but the latter is not included in the copy
contained in libpmc and the jsmn.h header carried no license information.
Add an SPDX tag to clarify the situation.
Two counters included a prefix 'Counter:###\tName:XXX' in their
descriptions that appears to be a leftover from some conversion
process. Remove them.
Found because a json validator tripped over the tab in the description.
jevents includes a very permissive json parser that accepts invalid
json, of which there are many examples in libpmc (typically extra or
missing commas). Convert the arm64 files to proper json so other tools
can parse them.
Sponsored by: The FreeBSD Foundation
The env space consumed by exporting all libc's .meta files
left little room for command line,
so unexport when done.
Update dirdeps.mk to latest and add
dirdeps-targets.mk to simplify/update targets/Makefile
Makefile changes to go with Makefile.depend changes in D22494
Reviewed by: bdrewery
MFC after: 1 week
Sponsored by: Juniper Networks
Differential Revision: https://reviews.freebsd.org/D22495
Update a bunch of Makefile.depend files as
a result of adding Makefile.depend.options files
Reviewed by: bdrewery
MFC after: 1 week
Sponsored by: Juniper Networks
Differential Revision: https://reviews.freebsd.org/D22494
Diff partially stolen from CheriBSD; these bits need -Wl,-z,notext in order
to build in an LLVM world. They are needed for all flavors/sizes of MIPS.
This will eventually get fixed in LLVM, but it's unclear when.
Reported by: arichardson, emaste
Differential Revision: https://reviews.freebsd.org/D21696
BERI stands for Bluespec Extensible RISC Implementation, based on MIPS.
BERI has not implemented standard MIPS perfomance monitoring counters,
instead it provides statistical counters.
BERI statcounters have a several limitations:
- They can't be written
- They don't support start/stop operation
- None of hardware interrupt is provided on a counter overflow.
So make it separate to hwpmc_mips module and support process/system
counting mode only.
Sponsored by: DARPA, AFRL
has become very trigger-happy with libc++ 9.0.0.
It does not help that gcc's implementation of this warning is even more
trigger-happy, in the sense that it already warns on the declaration
itself, not when you are using it. This is very annoying with our use
of -Wsystem-headers. That should really be disabled for gcc.
The default package use to be FreeBSD-runtime but it should only contain
binaries and libs enough to boot to single user and repair the system, it
is also very handy to have a package that can be tranform to a small mfsroot.
So create a new package named FreeBSD-utilities and make it the default one.
Also move a few binaries and lib into this package when it make sense.
Reviewed by: bapt, gjb
Differential Revision: https://reviews.freebsd.org/D21506
* Use `MIN` instead of similar hand rolled macro.
* Sort headers.
* Use `errno.h` instead of `sys/errno.h`.
* Wrap the argument to sizeof in parentheses for clarity.
* Remove `__BSD_VISIBLE` and `_XOPEN_SOURCE` #defines to mute warnings about
incompatible snprintf definitions.
This fixes a number of warnings I've been seeing lately in my builds.
Sort makefile variables per style.Makefile(9) (`CFLAGS`/`CWARNFLAG.gcc`) and
bump `WARNS` to 3.
MFC after: 2 weeks
Reviewed by: jtl
Approved by: jtl (mentor)
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D19851
If RLIM_INFINITY == -1ULL (such as on macOS) the min() call will result
in a value of less than 1 being returned. This causes nftw() to fail
with EINVAL.
While touching this file also fix includes to work on Linux/macOS and don't
declare snprintf since it may have different attributes in the system
headers there.
Reviewed By: mmacy
Approved By: brooks (mentor)
Differential Revision: https://reviews.freebsd.org/D17682
Not all event descriptions have a sample rate (such as inst_retired.any)
this will restore the legacy behavior of using 65536 in that case. It also
prevents accidental API misuse that could lead to panic.
PR: 230985
Reported by: markj
Reviewed by: markj
Approved by: re (gjb)
Sponsored by: Limelight Networks
Differential Revision: https://reviews.freebsd.org/D16958
I had disabled building of the aforementioned targets due to warnings breaking
tinderbox. This silences the warning and restores them to the build.
Reported by: jhibbits
Reviewed by: jhibbits
Approved by: re (gjb)
r336773 removed all things xscale. However, some things xscale are
really armv5. Revert that entirely. A more modest removal will follow.
Noticed by: andrew@
The OLD XSCALE stuff hasn't been useful in a while. The original
committer (cognet@) was the only one that had boards for it. He's
blessed this removal. Newer XSCALE (GUMSTIX) is for hardware that's
quite old. After discussion on arm@, it was clear there was no support
for keeping it.
Differential Review: https://reviews.freebsd.org/D16313
Fix the build of lib/libpmc and usr.sbin/pmc for gcc on amd64.
Reviewed by: mmacy
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D15723
- add '-j' options to filter to enable converting native pmc
log format to json lines format to enable the use of scripts
and external tooling
% pmc filter -j pmc.log pmc.jsonl
- Record the tsc value in sampling interrupts as opposed to
recording nanotime when the sample is copied to a global log
in hardclock - potentially many milliseconds later.
- At initialize record the tsc_freq and the time of day to give
us an offset for translating the tsc values in callchain records
By logging all threads and processes 'pmc filter'
can now filter on process or thread name, relieving
the user of the burden of determining which tid or
pid was which when the sample was taken.
% pmc filter -T if_io_tqg -P nginx pmc.log pmc-iflib.log
% pmc filter -x -T idle pmc.log pmc-noidle.log
- increase pmc cpuid field from 8 to 12 bits
- add cpuid version string to initialize entry in the log
so that filter can identify which counter index an
event name maps to
- GC unused config flags
- make fixed counter assignment more robust as well as the
changes needed to be properly identified for filter
Intel now provides comprehensive tables for all performance counters
and the various valid configuration permutations as text .json files.
Libpmc has been converted to use these and hwpmc_core has been greatly
simplified by moving to passthrough of the table values.
The one gotcha is that said tables don't support pentium pro and and pentium
IV. There's very few users of hwpmc on _amd64_ kernels on new hardware. It is
unlikely that anyone is doing low level optimization on 15 year old Intel
hardware. Nonetheless, if someone feels strongly enough to populate the
corresponding tables for p4 and ppro I will reinstate the files in to the
build.
Code for the K8 counters and !x86 architectures remains unchanged.
vendor provided pmu-events tables and sundry cleanups.
The vendor pmu-events tables provide counter descriptions, default
sample rates, event, umask, and flag values for all the counter
configuration permutations. Using this gives us:
- much simpler kernel code for the MD component
- helpful long and short event descriptions
- simpler user code
- sample rates that won't overload the system
Update man page with newer sample types and remove unused sample type.
vendor provided pmu-events tables and sundry cleanups.
The vendor pmu-events tables provide counter descriptions, default
sample rates, event, umask, and flag values for all the counter
configuration permutations. Using this gives us:
- much simpler kernel code for the MD component
- helpful long and short event descriptions
- simpler user code
- sample rates that won't overload the system
Update man page with newer sample types and remove unused sample type.
Squashed commit of the following:
commit 4459d43eff815bec08ccc5533dbe5de846f03128
Author: Matt Macy <mmacy@mattmacy.io>
Date: Sat May 26 00:06:31 2018 -0700
libpmc: fix pmu function signatures for non amd64
commit a2cb8bbc586c65d41f9b291430a2261ec67b59fe
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 22:38:11 2018 -0700
pmcstat: fix indentation of usage
commit f686954b15ff56a833ac80404898977cb80a265b
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 22:19:49 2018 -0700
pmclog(3): add callchain and pmcallocatedyn, remove pcsample
commit 73e13a0d2e9498c81c150d14d022050cee7511bb
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 22:19:00 2018 -0700
pmclog.h: GC pcsample field
commit 3e93ffd65da641fa657539dad3c48e281f8b5798
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 22:05:57 2018 -0700
hwpmc: make Intel core CPUs use external event tables
commit 634f5fae1e1644ac324003136c66cd9c619d1c93
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 22:00:06 2018 -0700
pmclog: update log record types, bump PMC_MAJOR
- explicitly make log record types a multiple of 8 bytes
- hook in pmu event types for pmc_allocate records
- remove references to no longer PCSAMPLE record
commit 83d84fcd2d65bdf6ddcb2e155a22f0cfa2a9c225
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 21:52:10 2018 -0700
libpmc: add support for having vendor table driven pmc_allocate
commit 9e6ad63c40c2fce8404847ace5078ca6cb33a736
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 19:11:33 2018 -0700
hwpmc_core: add accessors for EVSEL & UMASK, make IAP_UMASK useful to user
commit 859dceb93daa6419a48c794db99b6758e5b041c9
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 19:09:45 2018 -0700
pmcstat: update usage and man page as well as make -L consistent with pmccontrol
commit 79c7d8597e28c2eb13f5f9113e65ec2792ca57b1
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 18:07:03 2018 -0700
pmu_util: add support for all current intel event keywords
commit d8089c7f6a6c8527f38324252b1ffb47004694c6
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 17:45:00 2018 -0700
add description for new arguments
commit 058336740bab53c62ec88a3a026ea848cf3878c6
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 17:38:15 2018 -0700
libpmc: move pmu_events table and pmu_utils out of libpmcstat so that they can be used by pmc_allocate
commit 049b66b382e2f833c3f47bc8df9e750cb265709f
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 16:12:41 2018 -0700
pmcstat: hook pmu_events counter description utility routines in
commit f5e01e7b37a691dc045e1aa16b3ebdd162515de8
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 16:11:59 2018 -0700
pmu_events: add utility routines for listing counters and their descriptions
commit cba4d4f8907f772279f86f18f915e0d74d33ac56
Author: Matt Macy <mmacy@mattmacy.io>
Date: Fri May 25 16:09:50 2018 -0700
pmu-events: expand out skylake regex to simplify string matches
on thread in post-processing.
To generate stacks for just ${THREADID}:
pmcstat -R ${PREFIX}.pmcstat -L ${THREADID} -z100 -G ${PREFIX}.stacks
Sponsored by: Limelight Networks
pmcstat request for close will generate a close event.
This event will be in turn received by pmcstat to close the file.
Reviewed by: kib
Tested by: pho
MFC after: 1 week
Sponsored by: Stormshield
This should be effectively a nop for all archs, but for some reason the codegen
difference on the PowerPC 970 is such that the struct assignment doesn't work
(unless a printf() using one of the elements in the copied struct follows it),
while the memcpy() succeeds. On all archs the memcpy() should be expanded to an
inline copy, since the copy is bounded to ~16 bytes.
MFC after: 3 weeks
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
Start new sentences on new lines.
Sentences affected by the change are wrapped at <80 columns. Other
potentially offending lines have been left alone to reduce churn.
MFC after: 2 months
Sponsored by: Dell EMC Isilon
These functions are already referenced throughout the manpage -- this makes their
presence more apparent.
MFC after: 2 months
Sponsored by: Dell EMC Isilon
tested on the Broadwell-Xeon with a hacked up version of pmcstudy -T. I still need
to circle back and add in to pmcstudy all the new tests from the Broadwell Vtune
guide (for the hacked up version I just made it so I could run the -T option). The
Skylake CPU is not yet available (even though Intel is advertising it .. imagine that).
The Skylake PMC's will need to be tested once we can get a sample skylake CPU :-)
Sponsored by: Netflix Inc.
This both avoids some dependencies on xinstall.host and allows
bootstrapping on older releases to work due to lack of at least 'install -l'
support.
Sponsored by: EMC / Isilon Storage Division
