freebsd-skq/usr.sbin/pmc/cmd_pmc.h

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pmc: Add new sub-command structured "pmc" utility This will manage pmc functionality with a more manageable structure of subcommands rather than the gradually accreted spaghetti logic of overlapping flags that exists in pmcstat. This is intended to ultimately have all the same functionality as pmcannotate+pmccontrol+pmcstat. Currently it just has "stat" and "system-stat" - counters for the process itself and counters for the system as a whole respectively (i.e. system-stat includes kernel threads). Note that the rusage results (page faults/context switches/ user/sys) for stat-system will not account for the system as a whole - only for the child process specified on the command line. Implementing stat was suggested by mjg@ and the output is based on that from Linux's "perf stat". % pmc stat -- make -j32 buildkernel -DNO_MODULES -ss > /dev/null 9598393 page faults # 0.674 M/sec 387085 voluntary csw # 0.027 M/sec 106989 involuntary csw # 0.008 M/sec 2763965982317 cycles 2542953049760 instructions # 0.920 inst/cycle 511562750157 branches 12917006881 branch-misses # 2.525% 17944429878 cache-references # 0.007 refs/inst 2205119560 cache-misses # 12.289% 43.74 real # 2019.72% cpu 795.09 user # 1817.72% cpu 88.35 sys # 202.00% cpu % make -j32 buildkernel -DNO_MODULES -ss > /dev/null & % sudo pmc stat-system cat ^C 103 page faults # 0.811 M/sec 4 voluntary csw # 0.031 M/sec 0 involuntary csw # 0.000 M/sec 2843639070514 cycles 2606171217438 instructions # 0.916 inst/cycle 522450422783 branches 13092862839 branch-misses # 2.506% 18592101113 cache-references # 0.007 refs/inst 2562878667 cache-misses # 13.785% 44.85 real # 0.00% cpu 0.00 user # 0.00% cpu 0.00 sys # 0.00% cpu
2018-05-29 20:28:34 +00:00
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2018, Matthew Macy
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*
*/
#ifndef _CMD_PMC_H_
#define _CMD_PMC_H_
#define DEFAULT_DISPLAY_HEIGHT 256 /* file virtual height */
#define DEFAULT_DISPLAY_WIDTH 1024 /* file virtual width */
extern int pmc_displayheight;
extern int pmc_displaywidth;
extern int pmc_kq;
extern struct pmcstat_args pmc_args;
typedef int (*cmd_disp_t)(int, char **);
#if defined(__cplusplus)
extern "C" {
#endif
int cmd_pmc_stat(int, char **);
int cmd_pmc_filter(int, char **);
int cmd_pmc_stat_system(int, char **);
int cmd_pmc_list_events(int, char **);
int cmd_pmc_summary(int, char **);
#if defined(__cplusplus)
};
#endif
pmc: Add new sub-command structured "pmc" utility This will manage pmc functionality with a more manageable structure of subcommands rather than the gradually accreted spaghetti logic of overlapping flags that exists in pmcstat. This is intended to ultimately have all the same functionality as pmcannotate+pmccontrol+pmcstat. Currently it just has "stat" and "system-stat" - counters for the process itself and counters for the system as a whole respectively (i.e. system-stat includes kernel threads). Note that the rusage results (page faults/context switches/ user/sys) for stat-system will not account for the system as a whole - only for the child process specified on the command line. Implementing stat was suggested by mjg@ and the output is based on that from Linux's "perf stat". % pmc stat -- make -j32 buildkernel -DNO_MODULES -ss > /dev/null 9598393 page faults # 0.674 M/sec 387085 voluntary csw # 0.027 M/sec 106989 involuntary csw # 0.008 M/sec 2763965982317 cycles 2542953049760 instructions # 0.920 inst/cycle 511562750157 branches 12917006881 branch-misses # 2.525% 17944429878 cache-references # 0.007 refs/inst 2205119560 cache-misses # 12.289% 43.74 real # 2019.72% cpu 795.09 user # 1817.72% cpu 88.35 sys # 202.00% cpu % make -j32 buildkernel -DNO_MODULES -ss > /dev/null & % sudo pmc stat-system cat ^C 103 page faults # 0.811 M/sec 4 voluntary csw # 0.031 M/sec 0 involuntary csw # 0.000 M/sec 2843639070514 cycles 2606171217438 instructions # 0.916 inst/cycle 522450422783 branches 13092862839 branch-misses # 2.506% 18592101113 cache-references # 0.007 refs/inst 2562878667 cache-misses # 13.785% 44.85 real # 0.00% cpu 0.00 user # 0.00% cpu 0.00 sys # 0.00% cpu
2018-05-29 20:28:34 +00:00
int pmc_util_get_pid(struct pmcstat_args *);
void pmc_util_start_pmcs(struct pmcstat_args *);
void pmc_util_cleanup(struct pmcstat_args *);
void pmc_util_shutdown_logging(struct pmcstat_args *args);
void pmc_util_kill_process(struct pmcstat_args *args);
#endif