svn commit: r206090 - head/usr.sbin/pmcstat
Fabien Thomas
fabient at FreeBSD.org
Fri Apr 2 13:34:29 UTC 2010
Author: fabient
Date: Fri Apr 2 13:34:28 2010
New Revision: 206090
URL: http://svn.freebsd.org/changeset/base/206090
Log:
Improve "top" header by:
- Display sample received per PMCs (or merged PMCs).
- Display percentage vs all samples
Modified:
head/usr.sbin/pmcstat/pmcpl_callgraph.c
head/usr.sbin/pmcstat/pmcpl_calltree.c
head/usr.sbin/pmcstat/pmcstat_log.c
head/usr.sbin/pmcstat/pmcstat_log.h
Modified: head/usr.sbin/pmcstat/pmcpl_callgraph.c
==============================================================================
--- head/usr.sbin/pmcstat/pmcpl_callgraph.c Fri Apr 2 13:23:49 2010 (r206089)
+++ head/usr.sbin/pmcstat/pmcpl_callgraph.c Fri Apr 2 13:34:28 2010 (r206090)
@@ -341,6 +341,7 @@ pmcpl_cg_process(struct pmcstat_process
parent = pmcstat_cgnode_hash_lookup_pc(pp, pmcid, pc, usermode);
if (parent == NULL) {
pmcstat_stats.ps_callchain_dubious_frames++;
+ pmcr->pr_dubious_frames++;
return;
}
Modified: head/usr.sbin/pmcstat/pmcpl_calltree.c
==============================================================================
--- head/usr.sbin/pmcstat/pmcpl_calltree.c Fri Apr 2 13:23:49 2010 (r206089)
+++ head/usr.sbin/pmcstat/pmcpl_calltree.c Fri Apr 2 13:34:28 2010 (r206090)
@@ -403,6 +403,10 @@ pmcpl_ct_node_dumptop(int pmcin, struct
&pmcin, pmcpl_ct_arc_compare);
for (i = 0; i < ct->pct_narc; i++) {
+ /* Skip this arc if there is no sample at all. */
+ if (PMCPL_CT_SAMPLE(pmcin,
+ &ct->pct_arc[i].pcta_samples) == 0)
+ continue;
if (PMCPL_CT_SAMPLEP(pmcin,
&ct->pct_arc[i].pcta_samples) > pmcstat_threshold) {
if (pmcpl_ct_node_dumptop(pmcin,
@@ -516,6 +520,10 @@ pmcpl_ct_topdisplay(void)
x = y = 0;
for (i = 0; i < pmcpl_ct_root->pct_narc; i++) {
+ /* Skip this arc if there is no sample at all. */
+ if (PMCPL_CT_SAMPLE(pmcin,
+ &pmcpl_ct_root->pct_arc[i].pcta_samples) == 0)
+ continue;
if (pmcpl_ct_node_dumptop(pmcin,
pmcpl_ct_root->pct_arc[i].pcta_child,
&rsamples, x, &y, pmcstat_displayheight - 2)) {
@@ -693,6 +701,7 @@ pmcpl_ct_process(struct pmcstat_process
}
if (n-- == 0) {
pmcstat_stats.ps_callchain_dubious_frames++;
+ pmcr->pr_dubious_frames++;
return;
}
Modified: head/usr.sbin/pmcstat/pmcstat_log.c
==============================================================================
--- head/usr.sbin/pmcstat/pmcstat_log.c Fri Apr 2 13:23:49 2010 (r206089)
+++ head/usr.sbin/pmcstat/pmcstat_log.c Fri Apr 2 13:34:28 2010 (r206090)
@@ -247,6 +247,7 @@ static int pmcstat_string_compute_hash(c
static void pmcstat_string_initialize(void);
static int pmcstat_string_lookup_hash(pmcstat_interned_string _is);
static void pmcstat_string_shutdown(void);
+static void pmcstat_stats_reset(void);
/*
* A simple implementation of interned strings. Each interned string
@@ -274,6 +275,21 @@ int pmcstat_npmcs;
*/
int pmcstat_pause;
+static void
+pmcstat_stats_reset(void)
+{
+ struct pmcstat_pmcrecord *pr;
+
+ /* Flush PMCs stats. */
+ LIST_FOREACH(pr, &pmcstat_pmcs, pr_next) {
+ pr->pr_samples = 0;
+ pr->pr_dubious_frames = 0;
+ }
+
+ /* Flush global stats. */
+ bzero(&pmcstat_stats, sizeof(struct pmcstat_stats));
+}
+
/*
* Compute a 'hash' value for a string.
*/
@@ -1009,6 +1025,8 @@ pmcstat_pmcid_add(pmc_id_t pmcid, pmcsta
pr->pr_pmcid = pmcid;
pr->pr_pmcname = ps;
pr->pr_pmcin = pmcstat_npmcs++;
+ pr->pr_samples = 0;
+ pr->pr_dubious_frames = 0;
pr->pr_merge = prm == NULL ? pr : prm;
LIST_INSERT_HEAD(&pmcstat_pmcs, pr, pr_next);
@@ -1387,6 +1405,7 @@ pmcstat_analyze_log(void)
/* Get PMC record. */
pmcr = pmcstat_lookup_pmcid(ev.pl_u.pl_s.pl_pmcid);
assert(pmcr != NULL);
+ pmcr->pr_samples++;
/*
* Call the plugins processing
@@ -1420,6 +1439,7 @@ pmcstat_analyze_log(void)
/* Get PMC record. */
pmcr = pmcstat_lookup_pmcid(ev.pl_u.pl_cc.pl_pmcid);
assert(pmcr != NULL);
+ pmcr->pr_samples++;
/*
* Call the plugins processing
@@ -1787,32 +1807,46 @@ pmcstat_process_log(void)
static void
pmcstat_refresh_top(void)
{
+ int v_attrs;
+ float v;
char pmcname[40];
- const char *s;
+ struct pmcstat_pmcrecord *pmcpr;
/* If in pause mode do not refresh display. */
if (pmcstat_pause)
return;
/* Wait until PMC pop in the log. */
- s = pmcstat_pmcindex_to_name(pmcstat_pmcinfilter);
- if (s == NULL)
+ pmcpr = pmcstat_pmcindex_to_pmcr(pmcstat_pmcinfilter);
+ if (pmcpr == NULL)
return;
/* Format PMC name. */
if (pmcstat_mergepmc)
- snprintf(pmcname, sizeof(pmcname), "[%s]", s);
+ snprintf(pmcname, sizeof(pmcname), "[%s]",
+ pmcstat_string_unintern(pmcpr->pr_pmcname));
else
snprintf(pmcname, sizeof(pmcname), "%s.%d",
- s, pmcstat_pmcinfilter);
+ pmcstat_string_unintern(pmcpr->pr_pmcname),
+ pmcstat_pmcinfilter);
+
+ /* Format samples count. */
+ if (pmcstat_stats.ps_samples_total > 0)
+ v = (pmcpr->pr_samples * 100.0) /
+ pmcstat_stats.ps_samples_total;
+ else
+ v = 0.;
+ v_attrs = PMCSTAT_ATTRPERCENT(v);
PMCSTAT_PRINTBEGIN();
- PMCSTAT_PRINTW("PMC: %s Samples: %u processed, %u invalid\n\n",
+ PMCSTAT_PRINTW("PMC: %s Samples: %u ",
pmcname,
- pmcstat_stats.ps_samples_total,
- pmcstat_stats.ps_samples_unknown_offset +
- pmcstat_stats.ps_samples_indeterminable +
- pmcstat_stats.ps_callchain_dubious_frames);
+ pmcpr->pr_samples);
+ PMCSTAT_ATTRON(v_attrs);
+ PMCSTAT_PRINTW("(%.1f%%) ", v);
+ PMCSTAT_ATTROFF(v_attrs);
+ PMCSTAT_PRINTW(", %u unresolved\n\n",
+ pmcpr->pr_dubious_frames);
if (plugins[args.pa_plugin].pl_topdisplay != NULL)
plugins[args.pa_plugin].pl_topdisplay();
PMCSTAT_PRINTEND();
@@ -1879,7 +1913,7 @@ pmcstat_keypress_log(void)
*/
if (plugins[args.pa_plugin].pl_shutdown != NULL)
plugins[args.pa_plugin].pl_shutdown(NULL);
- bzero(&pmcstat_stats, sizeof(struct pmcstat_stats));
+ pmcstat_stats_reset();
if (plugins[args.pa_plugin].pl_init != NULL)
plugins[args.pa_plugin].pl_init();
@@ -1900,7 +1934,7 @@ pmcstat_keypress_log(void)
} while (plugins[args.pa_plugin].pl_topdisplay == NULL);
/* Open new plugin. */
- bzero(&pmcstat_stats, sizeof(struct pmcstat_stats));
+ pmcstat_stats_reset();
if (plugins[args.pa_plugin].pl_init != NULL)
plugins[args.pa_plugin].pl_init();
wprintw(w, "switching to plugin %s",
@@ -1949,7 +1983,7 @@ pmcstat_display_log(void)
if (args.pa_topmode == PMCSTAT_TOP_DELTA) {
if (plugins[args.pa_plugin].pl_shutdown != NULL)
plugins[args.pa_plugin].pl_shutdown(NULL);
- bzero(&pmcstat_stats, sizeof(struct pmcstat_stats));
+ pmcstat_stats_reset();
if (plugins[args.pa_plugin].pl_init != NULL)
plugins[args.pa_plugin].pl_init();
}
Modified: head/usr.sbin/pmcstat/pmcstat_log.h
==============================================================================
--- head/usr.sbin/pmcstat/pmcstat_log.h Fri Apr 2 13:23:49 2010 (r206089)
+++ head/usr.sbin/pmcstat/pmcstat_log.h Fri Apr 2 13:34:28 2010 (r206090)
@@ -146,6 +146,8 @@ struct pmcstat_pmcrecord {
pmc_id_t pr_pmcid;
int pr_pmcin;
pmcstat_interned_string pr_pmcname;
+ int pr_samples;
+ int pr_dubious_frames;
struct pmcstat_pmcrecord *pr_merge;
};
extern LIST_HEAD(pmcstat_pmcs, pmcstat_pmcrecord) pmcstat_pmcs; /* PMC list */
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