diff --git a/lib/libpmc/libpmc_pmu_util.c b/lib/libpmc/libpmc_pmu_util.c
index 1b2c10e07368..a525a0067822 100644
--- a/lib/libpmc/libpmc_pmu_util.c
+++ b/lib/libpmc/libpmc_pmu_util.c
@@ -1,626 +1,604 @@
/*-
* 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.
*
* $FreeBSD$
*
*/
#include <sys/types.h>
#include <sys/errno.h>
#include <sys/pmc.h>
#include <sys/sysctl.h>
#include <stddef.h>
#include <stdlib.h>
#include <limits.h>
#include <regex.h>
#include <string.h>
#include <pmc.h>
#include <pmclog.h>
#include <assert.h>
#include <libpmcstat.h>
#include "pmu-events/pmu-events.h"
#if defined(__amd64__) || defined(__i386__)
struct pmu_alias {
const char *pa_alias;
const char *pa_name;
};
typedef enum {
PMU_INVALID,
PMU_INTEL,
PMU_AMD,
} pmu_mfr_t;
static struct pmu_alias pmu_intel_alias_table[] = {
{"UNHALTED_CORE_CYCLES", "CPU_CLK_UNHALTED.THREAD_P_ANY"},
{"UNHALTED-CORE-CYCLES", "CPU_CLK_UNHALTED.THREAD_P_ANY"},
{"LLC_MISSES", "LONGEST_LAT_CACHE.MISS"},
{"LLC-MISSES", "LONGEST_LAT_CACHE.MISS"},
{"LLC_REFERENCE", "LONGEST_LAT_CACHE.REFERENCE"},
{"LLC-REFERENCE", "LONGEST_LAT_CACHE.REFERENCE"},
{"LLC_MISS_RHITM", "mem_load_l3_miss_retired.remote_hitm"},
{"LLC-MISS-RHITM", "mem_load_l3_miss_retired.remote_hitm"},
{"RESOURCE_STALL", "RESOURCE_STALLS.ANY"},
{"RESOURCE_STALLS_ANY", "RESOURCE_STALLS.ANY"},
{"BRANCH_INSTRUCTION_RETIRED", "BR_INST_RETIRED.ALL_BRANCHES"},
{"BRANCH-INSTRUCTION-RETIRED", "BR_INST_RETIRED.ALL_BRANCHES"},
{"BRANCH_MISSES_RETIRED", "BR_MISP_RETIRED.ALL_BRANCHES"},
{"BRANCH-MISSES-RETIRED", "BR_MISP_RETIRED.ALL_BRANCHES"},
{"cycles", "tsc-tsc"},
{"unhalted-cycles", "CPU_CLK_UNHALTED.THREAD_P_ANY"},
{"instructions", "inst_retired.any_p"},
{"branch-mispredicts", "br_misp_retired.all_branches"},
{"branches", "br_inst_retired.all_branches"},
{"interrupts", "hw_interrupts.received"},
{"ic-misses", "frontend_retired.l1i_miss"},
{NULL, NULL},
};
static struct pmu_alias pmu_amd_alias_table[] = {
{"UNHALTED_CORE_CYCLES", "ls_not_halted_cyc"},
{"UNHALTED-CORE-CYCLES", "ls_not_halted_cyc"},
{NULL, NULL},
};
static pmu_mfr_t
pmu_events_mfr(void)
{
char buf[PMC_CPUID_LEN];
size_t s = sizeof(buf);
pmu_mfr_t mfr;
if (sysctlbyname("kern.hwpmc.cpuid", buf, &s,
(void *)NULL, 0) == -1)
return (PMU_INVALID);
if (strcasestr(buf, "AuthenticAMD") != NULL ||
strcasestr(buf, "HygonGenuine") != NULL)
mfr = PMU_AMD;
else if (strcasestr(buf, "GenuineIntel") != NULL)
mfr = PMU_INTEL;
else
mfr = PMU_INVALID;
return (mfr);
}
/*
* The Intel fixed mode counters are:
* "inst_retired.any",
* "cpu_clk_unhalted.thread",
* "cpu_clk_unhalted.thread_any",
* "cpu_clk_unhalted.ref_tsc",
*
*/
static const char *
pmu_alias_get(const char *name)
{
pmu_mfr_t mfr;
struct pmu_alias *pa;
struct pmu_alias *pmu_alias_table;
if ((mfr = pmu_events_mfr()) == PMU_INVALID)
return (name);
if (mfr == PMU_AMD)
pmu_alias_table = pmu_amd_alias_table;
else if (mfr == PMU_INTEL)
pmu_alias_table = pmu_intel_alias_table;
else
return (name);
for (pa = pmu_alias_table; pa->pa_alias != NULL; pa++)
if (strcasecmp(name, pa->pa_alias) == 0)
return (pa->pa_name);
return (name);
}
struct pmu_event_desc {
uint64_t ped_period;
uint64_t ped_offcore_rsp;
uint64_t ped_l3_thread;
uint64_t ped_l3_slice;
uint32_t ped_event;
uint32_t ped_frontend;
uint32_t ped_ldlat;
uint32_t ped_config1;
int16_t ped_umask;
uint8_t ped_cmask;
uint8_t ped_any;
uint8_t ped_inv;
uint8_t ped_edge;
uint8_t ped_fc_mask;
uint8_t ped_ch_mask;
};
static const struct pmu_events_map *
pmu_events_map_get(const char *cpuid)
{
regex_t re;
regmatch_t pmatch[1];
char buf[PMC_CPUID_LEN];
size_t s = sizeof(buf);
int match;
const struct pmu_events_map *pme;
if (cpuid != NULL) {
strlcpy(buf, cpuid, s);
} else {
if (sysctlbyname("kern.hwpmc.cpuid", buf, &s,
(void *)NULL, 0) == -1)
return (NULL);
}
for (pme = pmu_events_map; pme->cpuid != NULL; pme++) {
if (regcomp(&re, pme->cpuid, REG_EXTENDED) != 0) {
printf("regex '%s' failed to compile, ignoring\n",
pme->cpuid);
continue;
}
match = regexec(&re, buf, 1, pmatch, 0);
regfree(&re);
if (match == 0) {
if (pmatch[0].rm_so == 0 && (buf[pmatch[0].rm_eo] == 0
|| buf[pmatch[0].rm_eo] == '-'))
return (pme);
}
}
return (NULL);
}
static const struct pmu_event *
pmu_event_get(const char *cpuid, const char *event_name, int *idx)
{
const struct pmu_events_map *pme;
const struct pmu_event *pe;
int i;
if ((pme = pmu_events_map_get(cpuid)) == NULL)
return (NULL);
for (i = 0, pe = pme->table; pe->name || pe->desc || pe->event; pe++, i++) {
if (pe->name == NULL)
continue;
if (strcasecmp(pe->name, event_name) == 0) {
if (idx)
*idx = i;
return (pe);
}
}
return (NULL);
}
int
pmc_pmu_idx_get_by_event(const char *cpuid, const char *event)
{
int idx;
const char *realname;
realname = pmu_alias_get(event);
if (pmu_event_get(cpuid, realname, &idx) == NULL)
return (-1);
return (idx);
}
const char *
pmc_pmu_event_get_by_idx(const char *cpuid, int idx)
{
const struct pmu_events_map *pme;
if ((pme = pmu_events_map_get(cpuid)) == NULL)
return (NULL);
assert(pme->table[idx].name);
return (pme->table[idx].name);
}
static int
pmu_parse_event(struct pmu_event_desc *ped, const char *eventin)
{
char *event;
char *kvp, *key, *value, *r;
char *debug;
if ((event = strdup(eventin)) == NULL)
return (ENOMEM);
r = event;
bzero(ped, sizeof(*ped));
ped->ped_period = DEFAULT_SAMPLE_COUNT;
ped->ped_umask = -1;
while ((kvp = strsep(&event, ",")) != NULL) {
key = strsep(&kvp, "=");
if (key == NULL)
abort();
value = kvp;
if (strcmp(key, "umask") == 0)
ped->ped_umask = strtol(value, NULL, 16);
else if (strcmp(key, "event") == 0)
ped->ped_event = strtol(value, NULL, 16);
else if (strcmp(key, "period") == 0)
ped->ped_period = strtol(value, NULL, 10);
else if (strcmp(key, "offcore_rsp") == 0)
ped->ped_offcore_rsp = strtol(value, NULL, 16);
else if (strcmp(key, "any") == 0)
ped->ped_any = strtol(value, NULL, 10);
else if (strcmp(key, "cmask") == 0)
ped->ped_cmask = strtol(value, NULL, 10);
else if (strcmp(key, "inv") == 0)
ped->ped_inv = strtol(value, NULL, 10);
else if (strcmp(key, "edge") == 0)
ped->ped_edge = strtol(value, NULL, 10);
else if (strcmp(key, "frontend") == 0)
ped->ped_frontend = strtol(value, NULL, 16);
else if (strcmp(key, "ldlat") == 0)
ped->ped_ldlat = strtol(value, NULL, 16);
else if (strcmp(key, "fc_mask") == 0)
ped->ped_fc_mask = strtol(value, NULL, 16);
else if (strcmp(key, "ch_mask") == 0)
ped->ped_ch_mask = strtol(value, NULL, 16);
else if (strcmp(key, "config1") == 0)
ped->ped_config1 = strtol(value, NULL, 16);
else if (strcmp(key, "l3_thread_mask") == 0)
ped->ped_l3_thread = strtol(value, NULL, 16);
else if (strcmp(key, "l3_slice_mask") == 0)
ped->ped_l3_slice = strtol(value, NULL, 16);
else {
debug = getenv("PMUDEBUG");
if (debug != NULL && strcmp(debug, "true") == 0 && value != NULL)
printf("unrecognized kvpair: %s:%s\n", key, value);
}
}
free(r);
return (0);
}
uint64_t
pmc_pmu_sample_rate_get(const char *event_name)
{
const struct pmu_event *pe;
struct pmu_event_desc ped;
event_name = pmu_alias_get(event_name);
if ((pe = pmu_event_get(NULL, event_name, NULL)) == NULL)
return (DEFAULT_SAMPLE_COUNT);
if (pe->alias && (pe = pmu_event_get(NULL, pe->alias, NULL)) == NULL)
return (DEFAULT_SAMPLE_COUNT);
if (pe->event == NULL)
return (DEFAULT_SAMPLE_COUNT);
if (pmu_parse_event(&ped, pe->event))
return (DEFAULT_SAMPLE_COUNT);
return (ped.ped_period);
}
int
pmc_pmu_enabled(void)
{
return (pmu_events_map_get(NULL) != NULL);
}
void
pmc_pmu_print_counters(const char *event_name)
{
const struct pmu_events_map *pme;
const struct pmu_event *pe;
struct pmu_event_desc ped;
char *debug;
int do_debug;
debug = getenv("PMUDEBUG");
do_debug = 0;
if (debug != NULL && strcmp(debug, "true") == 0)
do_debug = 1;
if ((pme = pmu_events_map_get(NULL)) == NULL)
return;
for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) {
if (pe->name == NULL)
continue;
if (event_name != NULL && strcasestr(pe->name, event_name) == NULL)
continue;
printf("\t%s\n", pe->name);
if (do_debug)
pmu_parse_event(&ped, pe->event);
}
}
void
pmc_pmu_print_counter_desc(const char *ev)
{
const struct pmu_events_map *pme;
const struct pmu_event *pe;
if ((pme = pmu_events_map_get(NULL)) == NULL)
return;
for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) {
if (pe->name == NULL)
continue;
if (strcasestr(pe->name, ev) != NULL &&
pe->desc != NULL)
printf("%s:\t%s\n", pe->name, pe->desc);
}
}
void
pmc_pmu_print_counter_desc_long(const char *ev)
{
const struct pmu_events_map *pme;
const struct pmu_event *pe;
if ((pme = pmu_events_map_get(NULL)) == NULL)
return;
for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) {
if (pe->name == NULL)
continue;
if (strcasestr(pe->name, ev) != NULL) {
if (pe->long_desc != NULL)
printf("%s:\n%s\n", pe->name, pe->long_desc);
else if (pe->desc != NULL)
printf("%s:\t%s\n", pe->name, pe->desc);
}
}
}
void
pmc_pmu_print_counter_full(const char *ev)
{
const struct pmu_events_map *pme;
const struct pmu_event *pe;
if ((pme = pmu_events_map_get(NULL)) == NULL)
return;
for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) {
if (pe->name == NULL)
continue;
if (strcasestr(pe->name, ev) == NULL)
continue;
printf("name: %s\n", pe->name);
if (pe->long_desc != NULL)
printf("desc: %s\n", pe->long_desc);
else if (pe->desc != NULL)
printf("desc: %s\n", pe->desc);
if (pe->event != NULL)
printf("event: %s\n", pe->event);
if (pe->topic != NULL)
printf("topic: %s\n", pe->topic);
if (pe->pmu != NULL)
printf("pmu: %s\n", pe->pmu);
if (pe->unit != NULL)
printf("unit: %s\n", pe->unit);
if (pe->perpkg != NULL)
printf("perpkg: %s\n", pe->perpkg);
if (pe->metric_expr != NULL)
printf("metric_expr: %s\n", pe->metric_expr);
if (pe->metric_name != NULL)
printf("metric_name: %s\n", pe->metric_name);
if (pe->metric_group != NULL)
printf("metric_group: %s\n", pe->metric_group);
}
}
static int
pmc_pmu_amd_pmcallocate(const char *event_name, struct pmc_op_pmcallocate *pm,
struct pmu_event_desc *ped)
{
struct pmc_md_amd_op_pmcallocate *amd;
const struct pmu_event *pe;
int idx = -1;
amd = &pm->pm_md.pm_amd;
if (ped->ped_umask > 0) {
pm->pm_caps |= PMC_CAP_QUALIFIER;
amd->pm_amd_config |= AMD_PMC_TO_UNITMASK(ped->ped_umask);
}
pm->pm_class = PMC_CLASS_K8;
pe = pmu_event_get(NULL, event_name, &idx);
if (strcmp("l3cache", pe->topic) == 0){
amd->pm_amd_config |= AMD_PMC_TO_EVENTMASK(ped->ped_event);
amd->pm_amd_sub_class = PMC_AMD_SUB_CLASS_L3_CACHE;
amd->pm_amd_config |= AMD_PMC_TO_L3SLICE(ped->ped_l3_slice);
amd->pm_amd_config |= AMD_PMC_TO_L3CORE(ped->ped_l3_thread);
}
else if (strcmp("data fabric", pe->topic) == 0){
amd->pm_amd_config |= AMD_PMC_TO_EVENTMASK_DF(ped->ped_event);
amd->pm_amd_sub_class = PMC_AMD_SUB_CLASS_DATA_FABRIC;
}
else{
amd->pm_amd_config |= AMD_PMC_TO_EVENTMASK(ped->ped_event);
amd->pm_amd_sub_class = PMC_AMD_SUB_CLASS_CORE;
if ((pm->pm_caps & (PMC_CAP_USER|PMC_CAP_SYSTEM)) == 0 ||
(pm->pm_caps & (PMC_CAP_USER|PMC_CAP_SYSTEM)) ==
(PMC_CAP_USER|PMC_CAP_SYSTEM))
amd->pm_amd_config |= (AMD_PMC_USR | AMD_PMC_OS);
else if (pm->pm_caps & PMC_CAP_USER)
amd->pm_amd_config |= AMD_PMC_USR;
else if (pm->pm_caps & PMC_CAP_SYSTEM)
amd->pm_amd_config |= AMD_PMC_OS;
if (ped->ped_edge)
amd->pm_amd_config |= AMD_PMC_EDGE;
if (ped->ped_inv)
amd->pm_amd_config |= AMD_PMC_EDGE;
if (pm->pm_caps & PMC_CAP_INTERRUPT)
amd->pm_amd_config |= AMD_PMC_INT;
}
return (0);
}
static int
pmc_pmu_intel_pmcallocate(const char *event_name, struct pmc_op_pmcallocate *pm,
struct pmu_event_desc *ped)
{
struct pmc_md_iap_op_pmcallocate *iap;
iap = &pm->pm_md.pm_iap;
if (strcasestr(event_name, "UNC_") == event_name ||
strcasestr(event_name, "uncore") != NULL) {
pm->pm_class = PMC_CLASS_UCP;
pm->pm_caps |= PMC_CAP_QUALIFIER;
} else if ((ped->ped_umask == -1) ||
(ped->ped_event == 0x0 && ped->ped_umask == 0x3)) {
pm->pm_class = PMC_CLASS_IAF;
} else {
pm->pm_class = PMC_CLASS_IAP;
pm->pm_caps |= PMC_CAP_QUALIFIER;
}
iap->pm_iap_config |= IAP_EVSEL(ped->ped_event);
if (ped->ped_umask > 0)
iap->pm_iap_config |= IAP_UMASK(ped->ped_umask);
iap->pm_iap_config |= IAP_CMASK(ped->ped_cmask);
iap->pm_iap_rsp = ped->ped_offcore_rsp;
if ((pm->pm_caps & (PMC_CAP_USER|PMC_CAP_SYSTEM)) == 0 ||
(pm->pm_caps & (PMC_CAP_USER|PMC_CAP_SYSTEM)) ==
(PMC_CAP_USER|PMC_CAP_SYSTEM))
iap->pm_iap_config |= (IAP_USR | IAP_OS);
else if (pm->pm_caps & PMC_CAP_USER)
iap->pm_iap_config |= IAP_USR;
else if (pm->pm_caps & PMC_CAP_SYSTEM)
iap->pm_iap_config |= IAP_OS;
if (ped->ped_edge)
iap->pm_iap_config |= IAP_EDGE;
if (ped->ped_any)
iap->pm_iap_config |= IAP_ANY;
if (ped->ped_inv)
iap->pm_iap_config |= IAP_EDGE;
if (pm->pm_caps & PMC_CAP_INTERRUPT)
iap->pm_iap_config |= IAP_INT;
return (0);
}
int
pmc_pmu_pmcallocate(const char *event_name, struct pmc_op_pmcallocate *pm)
{
const struct pmu_event *pe;
struct pmu_event_desc ped;
pmu_mfr_t mfr;
int idx = -1;
if ((mfr = pmu_events_mfr()) == PMU_INVALID)
return (ENOENT);
bzero(&pm->pm_md, sizeof(pm->pm_md));
pm->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE);
event_name = pmu_alias_get(event_name);
if ((pe = pmu_event_get(NULL, event_name, &idx)) == NULL)
return (ENOENT);
if (pe->alias && (pe = pmu_event_get(NULL, pe->alias, &idx)) == NULL)
return (ENOENT);
assert(idx >= 0);
pm->pm_ev = idx;
if (pe->event == NULL)
return (ENOENT);
if (pmu_parse_event(&ped, pe->event))
return (ENOENT);
if (mfr == PMU_INTEL)
return (pmc_pmu_intel_pmcallocate(event_name, pm, &ped));
else
return (pmc_pmu_amd_pmcallocate(event_name, pm, &ped));
}
-/*
- * Ultimately rely on AMD calling theirs the same
- */
-static const char *stat_mode_cntrs[] = {
- "cpu_clk_unhalted.thread",
- "inst_retired.any",
- "br_inst_retired.all_branches",
- "br_misp_retired.all_branches",
- "longest_lat_cache.reference",
- "longest_lat_cache.miss",
-};
-
-int
-pmc_pmu_stat_mode(const char ***cntrs)
-{
- if (pmc_pmu_enabled()) {
- *cntrs = stat_mode_cntrs;
- return (0);
- }
- return (EOPNOTSUPP);
-}
-
#else
uint64_t
pmc_pmu_sample_rate_get(const char *event_name __unused)
{
return (DEFAULT_SAMPLE_COUNT);
}
void
pmc_pmu_print_counters(const char *event_name __unused)
{
}
void
pmc_pmu_print_counter_desc(const char *e __unused)
{
}
void
pmc_pmu_print_counter_desc_long(const char *e __unused)
{
}
void
pmc_pmu_print_counter_full(const char *e __unused)
{
}
int
pmc_pmu_enabled(void)
{
return (0);
}
int
pmc_pmu_pmcallocate(const char *e __unused, struct pmc_op_pmcallocate *p __unused)
{
return (EOPNOTSUPP);
}
const char *
pmc_pmu_event_get_by_idx(const char *c __unused, int idx __unused)
{
return (NULL);
}
int
pmc_pmu_stat_mode(const char ***a __unused)
{
return (EOPNOTSUPP);
}
int
pmc_pmu_idx_get_by_event(const char *c __unused, const char *e __unused)
{
return (-1);
}
#endif
diff --git a/lib/libpmc/pmc.h b/lib/libpmc/pmc.h
index 9d12085364e5..7579f93a42b1 100644
--- a/lib/libpmc/pmc.h
+++ b/lib/libpmc/pmc.h
@@ -1,128 +1,127 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2003,2004 Joseph Koshy
* All rights reserved.
*
* 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 _PMC_H_
#define _PMC_H_
#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/pmc.h>
/*
* Driver statistics.
*/
struct pmc_driverstats {
unsigned int pm_intr_ignored; /* #interrupts ignored */
unsigned int pm_intr_processed; /* #interrupts processed */
unsigned int pm_intr_bufferfull; /* #interrupts with ENOSPC */
unsigned int pm_syscalls; /* #syscalls */
unsigned int pm_syscall_errors; /* #syscalls with errors */
unsigned int pm_buffer_requests; /* #buffer requests */
unsigned int pm_buffer_requests_failed; /* #failed buffer requests */
unsigned int pm_log_sweeps; /* #sample buffer processing
passes */
};
/*
* CPU information.
*/
struct pmc_cpuinfo {
enum pmc_cputype pm_cputype; /* the kind of CPU */
uint32_t pm_ncpu; /* number of CPUs */
uint32_t pm_npmc; /* #PMCs per CPU */
uint32_t pm_nclass; /* #classes of PMCs */
struct pmc_classinfo pm_classes[PMC_CLASS_MAX];
};
/*
* Current PMC state.
*/
struct pmc_pmcinfo {
int32_t pm_cpu; /* CPU number */
struct pmc_info pm_pmcs[]; /* NPMC structs */
};
/*
* Prototypes
*/
__BEGIN_DECLS
int pmc_allocate(const char *_ctrspec, enum pmc_mode _mode, uint32_t _flags,
int _cpu, pmc_id_t *_pmcid, uint64_t count);
int pmc_attach(pmc_id_t _pmcid, pid_t _pid);
int pmc_capabilities(pmc_id_t _pmc, uint32_t *_caps);
int pmc_configure_logfile(int _fd);
int pmc_flush_logfile(void);
int pmc_close_logfile(void);
int pmc_detach(pmc_id_t _pmcid, pid_t _pid);
int pmc_disable(int _cpu, int _pmc);
int pmc_enable(int _cpu, int _pmc);
int pmc_get_driver_stats(struct pmc_driverstats *_gms);
int pmc_get_msr(pmc_id_t _pmc, uint32_t *_msr);
int pmc_init(void);
int pmc_read(pmc_id_t _pmc, pmc_value_t *_value);
int pmc_release(pmc_id_t _pmc);
int pmc_rw(pmc_id_t _pmc, pmc_value_t _newvalue, pmc_value_t *_oldvalue);
int pmc_set(pmc_id_t _pmc, pmc_value_t _value);
int pmc_start(pmc_id_t _pmc);
int pmc_stop(pmc_id_t _pmc);
int pmc_width(pmc_id_t _pmc, uint32_t *_width);
int pmc_write(pmc_id_t _pmc, pmc_value_t _value);
int pmc_writelog(uint32_t _udata);
int pmc_ncpu(void);
int pmc_npmc(int _cpu);
int pmc_cpuinfo(const struct pmc_cpuinfo **_cpu_info);
int pmc_pmcinfo(int _cpu, struct pmc_pmcinfo **_pmc_info);
const char *pmc_name_of_capability(enum pmc_caps _c);
const char *pmc_name_of_class(enum pmc_class _pc);
const char *pmc_name_of_cputype(enum pmc_cputype _cp);
const char *pmc_name_of_disposition(enum pmc_disp _pd);
const char *pmc_name_of_event(enum pmc_event _pe);
const char *pmc_name_of_mode(enum pmc_mode _pm);
const char *pmc_name_of_state(enum pmc_state _ps);
int pmc_event_names_of_class(enum pmc_class _cl, const char ***_eventnames,
int *_nevents);
int pmc_pmu_enabled(void);
void pmc_pmu_print_counters(const char *);
void pmc_pmu_print_counter_desc(const char *);
void pmc_pmu_print_counter_desc_long(const char *);
void pmc_pmu_print_counter_full(const char *);
uint64_t pmc_pmu_sample_rate_get(const char *);
int pmc_pmu_pmcallocate(const char *, struct pmc_op_pmcallocate *);
const char *pmc_pmu_event_get_by_idx(const char *, int idx);
int pmc_pmu_idx_get_by_event(const char*, const char *);
-int pmc_pmu_stat_mode(const char ***);
__END_DECLS
#endif
diff --git a/usr.sbin/pmc/cmd_pmc_stat.c b/usr.sbin/pmc/cmd_pmc_stat.c
index 44ca7b92dea7..55d1f1ca7a3b 100644
--- a/usr.sbin/pmc/cmd_pmc_stat.c
+++ b/usr.sbin/pmc/cmd_pmc_stat.c
@@ -1,489 +1,496 @@
/*-
* 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/cpuset.h>
#include <sys/event.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/time.h>
#include <sys/ttycom.h>
#include <sys/user.h>
#include <sys/wait.h>
#include <assert.h>
#include <curses.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <kvm.h>
#include <libgen.h>
#include <limits.h>
#include <locale.h>
#include <math.h>
#include <pmc.h>
#include <pmclog.h>
#include <regex.h>
#include <signal.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include <libpmcstat.h>
#include "cmd_pmc.h"
/*
* Return the frequency of the kernel's statistics clock.
*/
static int
getstathz(void)
{
int mib[2];
size_t size;
struct clockinfo clockrate;
mib[0] = CTL_KERN;
mib[1] = KERN_CLOCKRATE;
size = sizeof clockrate;
if (sysctl(mib, 2, &clockrate, &size, NULL, 0) == -1)
err(1, "sysctl kern.clockrate");
return clockrate.stathz;
}
#define STAT_MODE_NPMCS 6
#define FIXED_MODE_NPMCS 2
static struct timespec before_ts;
#define CYCLES 0
#define INST 1
#define BR 2
#define IAP_START BR
#define BR_MISS 3
#define CACHE 4
#define CACHE_MISS 5
static const char *pmc_stat_mode_names[] = {
"cycles",
"instructions",
"branches",
"branch-misses",
"cache-references",
"cache-misses",
};
+/* Common aliases for the desired stat counter */
+static const char *pmc_stat_mode_aliases[] = {
+ "unhalted-cycles",
+ "instructions",
+ "branches",
+ "branch-mispredicts",
+ "LLC-REFERENCE",
+ "LLC-MISSES",
+};
+
static int pmcstat_sockpair[NSOCKPAIRFD];
static void __dead2
usage(void)
{
errx(EX_USAGE,
"\t get basic stats from command line program\n"
"\t -j <eventlist>, --events <eventlist> comma-delimited list of event specifiers\n"
);
}
static void
showtime(FILE *out, struct timespec *before, struct timespec *after,
struct rusage *ru)
{
char decimal_point;
uint64_t real, user, sys;
(void)setlocale(LC_NUMERIC, "");
decimal_point = localeconv()->decimal_point[0];
after->tv_sec -= before->tv_sec;
after->tv_nsec -= before->tv_nsec;
if (after->tv_nsec < 0) {
after->tv_sec--;
after->tv_nsec += 1000000000;
}
real = (after->tv_sec * 1000000000 + after->tv_nsec) / 1000;
user = ru->ru_utime.tv_sec * 1000000 + ru->ru_utime.tv_usec;
sys = ru->ru_stime.tv_sec * 1000000 + ru->ru_stime.tv_usec;
fprintf(out, "%13jd%c%02ld real\t\t\t#\t%2.02f%% cpu\n",
(intmax_t)after->tv_sec, decimal_point,
after->tv_nsec / 10000000, 100 * (double)(sys + user + 1) / (double)(real + 1));
fprintf(out, "%13jd%c%02ld user\t\t\t#\t%2.2f%% cpu\n",
(intmax_t)ru->ru_utime.tv_sec, decimal_point,
ru->ru_utime.tv_usec / 10000, 100 * (double)(user + 1) / (double)(real + 1));
fprintf(out, "%13jd%c%02ld sys\t\t\t#\t%2.02f%% cpu\n",
(intmax_t)ru->ru_stime.tv_sec, decimal_point,
ru->ru_stime.tv_usec / 10000, 100 * (double)(sys + 1) / (double)(real + 1));
}
static const char *stat_mode_cntrs[STAT_MODE_NPMCS];
static const char *stat_mode_names[STAT_MODE_NPMCS];
static void
pmc_stat_setup_stat(int system_mode, const char *arg)
{
const char *new_cntrs[STAT_MODE_NPMCS];
- static const char **pmc_stat_mode_cntrs;
struct pmcstat_ev *ev;
char *counters, *counter;
int i, c, start, newcnt;
cpuset_t cpumask, rootmask;
if (cpuset_getaffinity(CPU_LEVEL_ROOT, CPU_WHICH_PID, -1,
sizeof(rootmask), &rootmask) == -1)
err(EX_OSERR, "ERROR: Cannot determine the root set of CPUs");
CPU_COPY(&rootmask, &cpumask);
- if (pmc_pmu_stat_mode(&pmc_stat_mode_cntrs) != 0)
- errx(EX_USAGE, "ERROR: hwmpc.ko not loaded or stat not supported on host.");
if (system_mode && geteuid() != 0)
errx(EX_USAGE, "ERROR: system mode counters can only be used as root");
counters = NULL;
for (i = 0; i < STAT_MODE_NPMCS; i++) {
- stat_mode_cntrs[i] = pmc_stat_mode_cntrs[i];
+ stat_mode_cntrs[i] = pmc_stat_mode_aliases[i];
stat_mode_names[i] = pmc_stat_mode_names[i];
}
if (arg) {
counters = strdup(arg);
newcnt = 0;
while ((counter = strsep(&counters, ",")) != NULL &&
newcnt < STAT_MODE_NPMCS - IAP_START) {
new_cntrs[newcnt++] = counter;
if (pmc_pmu_sample_rate_get(counter) == DEFAULT_SAMPLE_COUNT)
errx(EX_USAGE, "ERROR: %s not recognized on host", counter);
}
start = IAP_START + STAT_MODE_NPMCS - FIXED_MODE_NPMCS - newcnt;
for (i = 0; i < newcnt; i++) {
stat_mode_cntrs[start + i] = new_cntrs[i];
stat_mode_names[start + i] = new_cntrs[i];
}
}
if (system_mode)
pmc_args.pa_flags |= FLAG_HAS_SYSTEM_PMCS;
else
pmc_args.pa_flags |= FLAG_HAS_PROCESS_PMCS;
pmc_args.pa_flags |= FLAG_HAS_COUNTING_PMCS;
pmc_args.pa_flags |= FLAG_HAS_COMMANDLINE | FLAG_HAS_TARGET;
pmc_args.pa_flags |= FLAG_HAS_PIPE;
pmc_args.pa_required |= FLAG_HAS_COMMANDLINE | FLAG_HAS_TARGET | FLAG_HAS_OUTPUT_LOGFILE;
pmc_args.pa_outputpath = strdup("/dev/null");
pmc_args.pa_logfd = pmcstat_open_log(pmc_args.pa_outputpath,
PMCSTAT_OPEN_FOR_WRITE);
for (i = 0; i < STAT_MODE_NPMCS; i++) {
if ((ev = malloc(sizeof(*ev))) == NULL)
errx(EX_SOFTWARE, "ERROR: Out of memory.");
if (system_mode)
ev->ev_mode = PMC_MODE_SC;
else
ev->ev_mode = PMC_MODE_TC;
ev->ev_spec = strdup(stat_mode_cntrs[i]);
if (ev->ev_spec == NULL)
errx(EX_SOFTWARE, "ERROR: Out of memory.");
c = strcspn(strdup(stat_mode_cntrs[i]), ", \t");
ev->ev_name = malloc(c + 1);
if (ev->ev_name == NULL)
errx(EX_SOFTWARE, "ERROR: Out of memory.");
(void)strncpy(ev->ev_name, stat_mode_cntrs[i], c);
*(ev->ev_name + c) = '\0';
ev->ev_count = -1;
ev->ev_flags = 0;
ev->ev_flags |= PMC_F_DESCENDANTS;
ev->ev_cumulative = 1;
ev->ev_saved = 0LL;
ev->ev_pmcid = PMC_ID_INVALID;
STAILQ_INSERT_TAIL(&pmc_args.pa_events, ev, ev_next);
if (system_mode) {
ev->ev_cpu = CPU_FFS(&cpumask) - 1;
CPU_CLR(ev->ev_cpu, &cpumask);
pmcstat_clone_event_descriptor(ev, &cpumask, &pmc_args);
CPU_SET(ev->ev_cpu, &cpumask);
} else
ev->ev_cpu = PMC_CPU_ANY;
}
if (clock_gettime(CLOCK_MONOTONIC, &before_ts))
err(1, "clock_gettime");
}
static void
pmc_stat_print_stat(struct rusage *ru)
{
struct pmcstat_ev *ev;
struct timespec after;
uint64_t cvals[STAT_MODE_NPMCS];
uint64_t ticks, value;
int hz, i;
if (ru) {
hz = getstathz();
ticks = hz * (ru->ru_utime.tv_sec + ru->ru_stime.tv_sec) +
hz * (ru->ru_utime.tv_usec + ru->ru_stime.tv_usec) / 1000000;
if (clock_gettime(CLOCK_MONOTONIC, &after))
err(1, "clock_gettime");
/*
* If our round-off on the tick calculation still puts us at 0,
* then always assume at least one tick.
*/
if (ticks == 0)
ticks = 1;
fprintf(pmc_args.pa_printfile, "%16ld %s\t\t#\t%02.03f M/sec\n",
ru->ru_minflt, "page faults", ((double)ru->ru_minflt / (double)ticks) / hz);
fprintf(pmc_args.pa_printfile, "%16ld %s\t\t#\t%02.03f M/sec\n",
ru->ru_nvcsw, "voluntary csw", ((double)ru->ru_nvcsw / (double)ticks) / hz);
fprintf(pmc_args.pa_printfile, "%16ld %s\t#\t%02.03f M/sec\n",
ru->ru_nivcsw, "involuntary csw", ((double)ru->ru_nivcsw / (double)ticks) / hz);
}
bzero(&cvals, sizeof(cvals));
STAILQ_FOREACH(ev, &pmc_args.pa_events, ev_next) {
if (pmc_read(ev->ev_pmcid, &value) < 0)
err(EX_OSERR, "ERROR: Cannot read pmc \"%s\"",
ev->ev_name);
for (i = 0; i < STAT_MODE_NPMCS; i++)
if (strcmp(ev->ev_name, stat_mode_cntrs[i]) == 0)
cvals[i] += value;
}
fprintf(pmc_args.pa_printfile, "%16jd %s\n", (uintmax_t)cvals[CYCLES], stat_mode_names[CYCLES]);
fprintf(pmc_args.pa_printfile, "%16jd %s\t\t#\t%01.03f inst/cycle\n", (uintmax_t)cvals[INST], stat_mode_names[INST],
(double)cvals[INST] / cvals[CYCLES]);
fprintf(pmc_args.pa_printfile, "%16jd %s\n", (uintmax_t)cvals[BR], stat_mode_names[BR]);
if (stat_mode_names[BR_MISS] == pmc_stat_mode_names[BR_MISS])
fprintf(pmc_args.pa_printfile, "%16jd %s\t\t#\t%.03f%%\n",
(uintmax_t)cvals[BR_MISS], stat_mode_names[BR_MISS],
100 * ((double)cvals[BR_MISS] / cvals[BR]));
else
fprintf(pmc_args.pa_printfile, "%16jd %s\n",
(uintmax_t)cvals[BR_MISS], stat_mode_names[BR_MISS]);
fprintf(pmc_args.pa_printfile, "%16jd %s%s", (uintmax_t)cvals[CACHE], stat_mode_names[CACHE],
stat_mode_names[CACHE] != pmc_stat_mode_names[CACHE] ? "\n" : "");
if (stat_mode_names[CACHE] == pmc_stat_mode_names[CACHE])
fprintf(pmc_args.pa_printfile, "\t#\t%.03f refs/inst\n",
((double)cvals[CACHE] / cvals[INST]));
fprintf(pmc_args.pa_printfile, "%16jd %s%s", (uintmax_t)cvals[CACHE_MISS], stat_mode_names[CACHE_MISS],
stat_mode_names[CACHE_MISS] != pmc_stat_mode_names[CACHE_MISS] ? "\n" : "");
if (stat_mode_names[CACHE_MISS] == pmc_stat_mode_names[CACHE_MISS])
fprintf(pmc_args.pa_printfile, "\t\t#\t%.03f%%\n",
100 * ((double)cvals[CACHE_MISS] / cvals[CACHE]));
if (ru)
showtime(pmc_args.pa_printfile, &before_ts, &after, ru);
}
static struct option longopts[] = {
{"events", required_argument, NULL, 'j'},
{NULL, 0, NULL, 0}
};
static int
pmc_stat_internal(int argc, char **argv, int system_mode)
{
char *event, *r;
struct sigaction sa;
struct kevent kev;
struct rusage ru;
struct winsize ws;
struct pmcstat_ev *ev;
int c, option, runstate;
int waitstatus, ru_valid, do_debug;
do_debug = ru_valid = 0;
r = event = NULL;
while ((option = getopt_long(argc, argv, "dj:", longopts, NULL)) != -1) {
switch (option) {
case 'j':
r = event = strdup(optarg);
break;
case 'd':
do_debug = 1;
break;
case '?':
default:
usage();
}
}
pmc_args.pa_argc = (argc -= optind);
pmc_args.pa_argv = (argv += optind);
if (argc == 0)
usage();
pmc_args.pa_flags |= FLAG_HAS_COMMANDLINE;
pmc_stat_setup_stat(system_mode, event);
free(r);
bzero(&ru, sizeof(ru));
EV_SET(&kev, SIGINT, EVFILT_SIGNAL, EV_ADD, 0, 0, NULL);
if (kevent(pmc_kq, &kev, 1, NULL, 0, NULL) < 0)
err(EX_OSERR, "ERROR: Cannot register kevent for SIGINT");
EV_SET(&kev, SIGIO, EVFILT_SIGNAL, EV_ADD, 0, 0, NULL);
if (kevent(pmc_kq, &kev, 1, NULL, 0, NULL) < 0)
err(EX_OSERR, "ERROR: Cannot register kevent for SIGIO");
EV_SET(&kev, 0, EVFILT_TIMER, EV_ADD, 0, 1000, NULL);
if (kevent(pmc_kq, &kev, 1, NULL, 0, NULL) < 0)
err(EX_OSERR,
"ERROR: Cannot register kevent for timer");
STAILQ_FOREACH(ev, &pmc_args.pa_events, ev_next) {
if (pmc_allocate(ev->ev_spec, ev->ev_mode,
ev->ev_flags, ev->ev_cpu, &ev->ev_pmcid, ev->ev_count) < 0)
err(EX_OSERR,
"ERROR: Cannot allocate %s-mode pmc with specification \"%s\"",
PMC_IS_SYSTEM_MODE(ev->ev_mode) ?
"system" : "process", ev->ev_spec);
if (PMC_IS_SAMPLING_MODE(ev->ev_mode) &&
pmc_set(ev->ev_pmcid, ev->ev_count) < 0)
err(EX_OSERR,
"ERROR: Cannot set sampling count for PMC \"%s\"",
ev->ev_name);
}
/*
* An exec() failure of a forked child is signalled by the
* child sending the parent a SIGCHLD. We don't register an
* actual signal handler for SIGCHLD, but instead use our
* kqueue to pick up the signal.
*/
EV_SET(&kev, SIGCHLD, EVFILT_SIGNAL, EV_ADD, 0, 0, NULL);
if (kevent(pmc_kq, &kev, 1, NULL, 0, NULL) < 0)
err(EX_OSERR, "ERROR: Cannot register kevent for SIGCHLD");
pmcstat_create_process(pmcstat_sockpair, &pmc_args, pmc_kq);
if (SLIST_EMPTY(&pmc_args.pa_targets))
errx(EX_DATAERR,
"ERROR: No matching target processes.");
if (pmc_args.pa_flags & FLAG_HAS_PROCESS_PMCS)
pmcstat_attach_pmcs(&pmc_args);
/* start the pmcs */
pmc_util_start_pmcs(&pmc_args);
/* start the (commandline) process if needed */
pmcstat_start_process(pmcstat_sockpair);
/* Handle SIGINT using the kqueue loop */
sa.sa_handler = SIG_IGN;
sa.sa_flags = 0;
(void)sigemptyset(&sa.sa_mask);
if (sigaction(SIGINT, &sa, NULL) < 0)
err(EX_OSERR, "ERROR: Cannot install signal handler");
/*
* loop till either the target process (if any) exits, or we
* are killed by a SIGINT or we reached the time duration.
*/
runstate = PMCSTAT_RUNNING;
do {
if ((c = kevent(pmc_kq, NULL, 0, &kev, 1, NULL)) <= 0) {
if (errno != EINTR)
err(EX_OSERR, "ERROR: kevent failed");
else
continue;
}
if (kev.flags & EV_ERROR)
errc(EX_OSERR, kev.data, "ERROR: kevent failed");
switch (kev.filter) {
case EVFILT_PROC: /* target has exited */
if (wait4(pmc_util_get_pid(&pmc_args), &waitstatus, 0, &ru) > 0) {
getrusage(RUSAGE_CHILDREN, &ru);
ru_valid = 1;
}
break;
case EVFILT_READ: /* log file data is present */
break;
case EVFILT_TIMER:
if (do_debug)
pmc_stat_print_stat(NULL);
break;
case EVFILT_SIGNAL:
if (kev.ident == SIGCHLD) {
/*
* The child process sends us a
* SIGCHLD if its exec() failed. We
* wait for it to exit and then exit
* ourselves.
*/
(void)wait(&c);
runstate = PMCSTAT_FINISHED;
} else if (kev.ident == SIGIO) {
/*
* We get a SIGIO if a PMC loses all
* of its targets, or if logfile
* writes encounter an error.
*/
if (wait4(pmc_util_get_pid(&pmc_args), &waitstatus, 0, &ru) > 0) {
getrusage(RUSAGE_CHILDREN, &ru);
ru_valid = 1;
}
runstate = pmcstat_close_log(&pmc_args);
} else if (kev.ident == SIGINT) {
/* Kill the child process if we started it */
if (pmc_args.pa_flags & FLAG_HAS_COMMANDLINE)
pmc_util_kill_process(&pmc_args);
runstate = pmcstat_close_log(&pmc_args);
} else if (kev.ident == SIGWINCH) {
if (ioctl(fileno(pmc_args.pa_printfile),
TIOCGWINSZ, &ws) < 0)
err(EX_OSERR,
"ERROR: Cannot determine window size");
pmc_displayheight = ws.ws_row - 1;
pmc_displaywidth = ws.ws_col - 1;
} else
assert(0);
break;
}
} while (runstate != PMCSTAT_FINISHED);
if (!ru_valid)
warnx("couldn't get rusage");
pmc_stat_print_stat(&ru);
pmc_util_cleanup(&pmc_args);
return (0);
}
int
cmd_pmc_stat(int argc, char **argv)
{
return (pmc_stat_internal(argc, argv, 0));
}
int
cmd_pmc_stat_system(int argc, char **argv)
{
return (pmc_stat_internal(argc, argv, 1));
}