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Differential D15275 Diff 42084 usr.sbin/pmcstat/pmcstat.c

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usr.sbin/pmcstat/pmcstat.c

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int int
main(int argc, char **argv) main(int argc, char **argv)
{ {
cpuset_t cpumask, rootmask; cpuset_t cpumask, rootmask;
double interval; double interval;
double duration; double duration;
int option, npmc; int option, npmc;
int c, check_driver_stats, current_sampling_count; int c, check_driver_stats;
uint64_t current_sampling_count;
int do_callchain, do_descendants, do_logproccsw, do_logprocexit; int do_callchain, do_descendants, do_logproccsw, do_logprocexit;
int do_print, do_read; int do_print, do_read;
size_t len; size_t len;
int graphdepth; int graphdepth;
int pipefd[2], rfd; int pipefd[2], rfd;
int use_cumulative_counts; int use_cumulative_counts;
short cf, cb; short cf, cb;
char *end, *tmp; char *end, *tmp;
const char *errmsg, *graphfilename; const char *errmsg, *graphfilename;
enum pmcstat_state runstate; enum pmcstat_state runstate;
struct pmc_driverstats ds_start, ds_end; struct pmc_driverstats ds_start, ds_end;
struct pmcstat_ev *ev; struct pmcstat_ev *ev;
struct sigaction sa; struct sigaction sa;
struct kevent kev; struct kevent kev;
struct winsize ws; struct winsize ws;
struct stat sb; struct stat sb;
char buffer[PATH_MAX]; char buffer[PATH_MAX];
check_driver_stats = 0; check_driver_stats = 0;
current_sampling_count = DEFAULT_SAMPLE_COUNT; current_sampling_count = 0;
do_callchain = 1; do_callchain = 1;
do_descendants = 0; do_descendants = 0;
do_logproccsw = 0; do_logproccsw = 0;
do_logprocexit = 0; do_logprocexit = 0;
use_cumulative_counts = 0; use_cumulative_counts = 0;
graphfilename = "-"; graphfilename = "-";
args.pa_required = 0; args.pa_required = 0;
args.pa_flags = 0; args.pa_flags = 0;
Show All 38 Linesmain(int argc, char **argv)
* which is usually all CPUs in the system. * which is usually all CPUs in the system.
*/ */
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);
while ((option = getopt(argc, argv, while ((option = getopt(argc, argv,
"CD:EF:G:M:NO:P:R:S:TWa:c:def:gk:l:m:n:o:p:qr:s:t:vw:z:")) != -1) "CD:EF:G:IM:NO:P:R:S:TWa:c:def:gk:l:m:n:o:p:qr:s:t:vw:z:")) != -1)
switch (option) { switch (option) {
case 'a': /* Annotate + callgraph */ case 'a': /* Annotate + callgraph */
args.pa_flags |= FLAG_DO_ANNOTATE; args.pa_flags |= FLAG_DO_ANNOTATE;
args.pa_plugin = PMCSTAT_PL_ANNOTATE_CG; args.pa_plugin = PMCSTAT_PL_ANNOTATE_CG;
graphfilename = optarg; graphfilename = optarg;
break; break;
case 'C': /* cumulative values */ case 'C': /* cumulative values */
▲ Show 20 Lines • Show All 52 Lines • ▼ Show 20 Lines case 'G': /* produce a system-wide callgraph */
break; break;
case 'g': /* produce gprof compatible profiles */ case 'g': /* produce gprof compatible profiles */
args.pa_flags |= FLAG_DO_GPROF; args.pa_flags |= FLAG_DO_GPROF;
args.pa_pplugin = PMCSTAT_PL_CALLGRAPH; args.pa_pplugin = PMCSTAT_PL_CALLGRAPH;
args.pa_plugin = PMCSTAT_PL_GPROF; args.pa_plugin = PMCSTAT_PL_GPROF;
break; break;
case 'I':
args.pa_flags |= FLAG_SKIP_TOP_FN_RES;
break;
case 'k': /* pathname to the kernel */ case 'k': /* pathname to the kernel */
free(args.pa_kernel); free(args.pa_kernel);
args.pa_kernel = strdup(optarg); args.pa_kernel = strdup(optarg);
if (args.pa_kernel == NULL) if (args.pa_kernel == NULL)
errx(EX_SOFTWARE, "ERROR: Out of memory"); errx(EX_SOFTWARE, "ERROR: Out of memory");
args.pa_required |= FLAG_DO_ANALYSIS; args.pa_required |= FLAG_DO_ANALYSIS;
args.pa_flags |= FLAG_HAS_KERNELPATH; args.pa_flags |= FLAG_HAS_KERNELPATH;
break; break;
▲ Show 20 Lines • Show All 60 Lines • ▼ Show 20 Lines case 'S': /* system-wide sampling PMC */
if (option == 's' || option == 'S') if (option == 's' || option == 'S')
args.pa_flags |= FLAG_HAS_SYSTEM_PMCS; args.pa_flags |= FLAG_HAS_SYSTEM_PMCS;
ev->ev_spec = strdup(optarg); ev->ev_spec = strdup(optarg);
if (ev->ev_spec == NULL) if (ev->ev_spec == NULL)
errx(EX_SOFTWARE, "ERROR: Out of memory."); errx(EX_SOFTWARE, "ERROR: Out of memory.");
if (option == 'S' || option == 'P') if (option == 'S' || option == 'P')
ev->ev_count = current_sampling_count; ev->ev_count = current_sampling_count ? current_sampling_count : pmu_sample_rate_get(ev->ev_spec);
else else
ev->ev_count = -1; ev->ev_count = -1;
if (option == 'S' || option == 's') if (option == 'S' || option == 's')
ev->ev_cpu = CPU_FFS(&cpumask) - 1; ev->ev_cpu = CPU_FFS(&cpumask) - 1;
else else
ev->ev_cpu = PMC_CPU_ANY; ev->ev_cpu = PMC_CPU_ANY;
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