void vt_metric_read(struct vt_metv* metv, uint64_t offsets[],
uint64_t values[])
{
int i;
if ( metv == NULL )
return;
/* read counter values of set */
if ( cpc_set_sample(cpc, metv->set, metv->buffer) == -1 )
vt_error_msg("cpc_set_sample: %s", strerror(errno));
for ( i = 0; i < nmetrics; i++ )
{
/* get 64-bit counter values from CPC buffer */
if ( cpc_buf_get(cpc, metv->buffer, metv->indices[i], &(values[i])) == -1 )
break;
}
if ( i != nmetrics )
vt_error_msg("cpc_buf_get: %s", strerror(errno));
/* add offsets to values, if necessary */
if ( offsets != NULL )
{
for ( i = 0; i < nmetrics; i++ )
values[i] += offsets[i];
}
}
static void
print_total(int ncpus, cpc_buf_t *buf, int nreq, const char *setname)
{
int i;
uint64_t val;
(void) printf("%7.3f %3d %5s ", mstimestamp(cpc_buf_hrtime(cpc, buf)),
ncpus, "total");
if (opts->dotick)
(void) printf("%9" PRId64 " ", cpc_buf_tick(cpc, buf));
for (i = 0; i < nreq; i++) {
(void) cpc_buf_get(cpc, buf, i, &val);
(void) printf("%9" PRId64 " ", val);
}
if (opts->nsets > 1)
(void) printf(" # %s", setname);
(void) fputc('\n', stdout);
}
static void
print_sample(processorid_t cpuid, cpc_buf_t *buf, int nreq, const char *setname,
int sibling)
{
char line[1024];
int ccnt;
int i;
uint64_t val;
uint64_t tick;
hrtime_t hrtime;
hrtime = cpc_buf_hrtime(cpc, buf);
tick = cpc_buf_tick(cpc, buf);
ccnt = snprintf(line, sizeof (line), "%7.3f %3d %5s ",
mstimestamp(hrtime), (int)cpuid, "tick");
if (opts->dotick)
ccnt += snprintf(line + ccnt, sizeof (line) - ccnt,
"%9" PRId64 " ", tick);
for (i = 0; i < nreq; i++) {
(void) cpc_buf_get(cpc, buf, i, &val);
ccnt += snprintf(line + ccnt, sizeof (line) - ccnt,
"%9" PRId64 " ", val);
}
if (opts->nsets > 1)
ccnt += snprintf(line + ccnt, sizeof (line) - ccnt,
" # %s\n", setname);
else
ccnt += snprintf(line + ccnt, sizeof (line) - ccnt, "\n");
if (sibling) {
/*
* This sample is being printed for a "sibling" CPU -- that is,
* a CPU which does not have its own CPC set bound. It is being
* measured via a set bound to another CPU sharing its physical
* processor.
*/
int designee = chip_designees[gstate[cpuid].chip_id];
char *p;
if ((p = strrchr(line, '#')) == NULL)
p = strrchr(line, '\n');
if (p != NULL) {
*p = '\0';
ccnt = strlen(line);
ccnt += snprintf(line + ccnt, sizeof (line) - ccnt,
"# counter shared with CPU %d\n", designee);
}
}
if (timestamp_fmt != NODATE)
print_timestamp(timestamp_fmt);
if (ccnt > sizeof (line))
ccnt = sizeof (line);
if (ccnt > 0)
(void) write(1, line, ccnt);
/*
* If this CPU is the chip designee for any other CPUs, print a line for
* them here.
*/
if (smt && (sibling == 0)) {
for (i = 0; i < ncpus; i++) {
if ((i != cpuid) && (gstate[i].cpuid != -1) &&
(chip_designees[gstate[i].chip_id] == cpuid))
print_sample(i, buf, nreq, setname, 1);
}
}
}
