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Differential D30528 Diff 90211 usr.sbin/pmc/cmd_pmc_stat.c

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usr.sbin/pmc/cmd_pmc_stat.c

Show First 20 Lines • Show All 98 Lines • ▼ Show 20 Linesstatic const char *pmc_stat_mode_names[] = {
"cycles", "cycles",
"instructions", "instructions",
"branches", "branches",
"branch-misses", "branch-misses",
"cache-references", "cache-references",
"cache-misses", "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",
mhorneAuthorUnsubmitted
Done
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Since it is not obvious from the diff, these aliases refer to the same counters as the names being removed above (on intel at least). Therefore, later calls to pmc_allocate() in this file will behave the same.

mhorne: Since it is not obvious from the diff, these aliases refer to the same counters as the names…
};
static int pmcstat_sockpair[NSOCKPAIRFD]; static int pmcstat_sockpair[NSOCKPAIRFD];
static void __dead2 static void __dead2
usage(void) usage(void)
{ {
errx(EX_USAGE, errx(EX_USAGE,
"\t get basic stats from command line program\n" "\t get basic stats from command line program\n"
"\t -j <eventlist>, --events <eventlist> comma-delimited list of event specifiers\n" "\t -j <eventlist>, --events <eventlist> comma-delimited list of event specifiers\n"
Show All 33 Lines
static const char *stat_mode_cntrs[STAT_MODE_NPMCS]; static const char *stat_mode_cntrs[STAT_MODE_NPMCS];
static const char *stat_mode_names[STAT_MODE_NPMCS]; static const char *stat_mode_names[STAT_MODE_NPMCS];
static void static void
pmc_stat_setup_stat(int system_mode, const char *arg) pmc_stat_setup_stat(int system_mode, const char *arg)
{ {
const char *new_cntrs[STAT_MODE_NPMCS]; const char *new_cntrs[STAT_MODE_NPMCS];
static const char **pmc_stat_mode_cntrs;
struct pmcstat_ev *ev; struct pmcstat_ev *ev;
char *counters, *counter; char *counters, *counter;
int i, c, start, newcnt; int i, c, start, newcnt;
cpuset_t cpumask, rootmask; cpuset_t cpumask, rootmask;
if (cpuset_getaffinity(CPU_LEVEL_ROOT, CPU_WHICH_PID, -1, if (cpuset_getaffinity(CPU_LEVEL_ROOT, CPU_WHICH_PID, -1,
sizeof(rootmask), &rootmask) == -1) sizeof(rootmask), &rootmask) == -1)
err(EX_OSERR, "ERROR: Cannot determine the root set of CPUs"); err(EX_OSERR, "ERROR: Cannot determine the root set of CPUs");
CPU_COPY(&rootmask, &cpumask); 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) if (system_mode && geteuid() != 0)
errx(EX_USAGE, "ERROR: system mode counters can only be used as root"); errx(EX_USAGE, "ERROR: system mode counters can only be used as root");
counters = NULL; counters = NULL;
for (i = 0; i < STAT_MODE_NPMCS; i++) { 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]; stat_mode_names[i] = pmc_stat_mode_names[i];
} }
if (arg) { if (arg) {
counters = strdup(arg); counters = strdup(arg);
newcnt = 0; newcnt = 0;
while ((counter = strsep(&counters, ",")) != NULL && while ((counter = strsep(&counters, ",")) != NULL &&
newcnt < STAT_MODE_NPMCS - IAP_START) { newcnt < STAT_MODE_NPMCS - IAP_START) {
new_cntrs[newcnt++] = counter; new_cntrs[newcnt++] = counter;
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