svn commit: r334134 - head/lib/libpmcstat

[Matt Macy]

Author: mmacy
Date: Thu May 24 06:47:40 2018
New Revision: 334134
URL: https://svnweb.freebsd.org/changeset/base/334134

Log:
  libpmcstat: import aliases table and bug fixes

Modified:
  head/lib/libpmcstat/libpmcstat_pmu_util.c

Modified: head/lib/libpmcstat/libpmcstat_pmu_util.c
==============================================================================
--- head/lib/libpmcstat/libpmcstat_pmu_util.c	Thu May 24 06:47:04 2018	(r334133)
+++ head/lib/libpmcstat/libpmcstat_pmu_util.c	Thu May 24 06:47:40 2018	(r334134)
@@ -42,6 +42,39 @@
 #include "pmu-events/pmu-events.h"
 
 #if defined(__amd64__)
+struct pmu_alias {
+	const char *pa_alias;
+	const char *pa_name;
+};
+static struct pmu_alias pmu_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"},
+	{ NULL, NULL },
+};
+
+static const char *
+pmu_alias_get(const char *name)
+{
+	struct pmu_alias *pa;
+
+	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 {
 	uint32_t ped_umask;
 	uint32_t ped_event;
@@ -75,9 +108,12 @@ pmu_event_get(const char *event_name)
 
 	if ((pme = pmu_events_map_get()) == NULL)
 		return (NULL);
-	for (pe = pme->table; pe->name != NULL; pe++)
-		if (strcmp(pe->name, event_name) == 0)
+	for (pe = pme->table; pe->name || pe->desc || pe->event; pe++) {
+		if (pe->name == NULL)
+			continue;
+		if (strcasecmp(pe->name, event_name) == 0)
 			return (pe);
+	}
 	return (NULL);
 }
 
@@ -100,7 +136,7 @@ pmu_parse_event(struct pmu_event_desc *ped, const char
 		if (strcmp(key, "event") == 0)
 			ped->ped_event = strtol(value, NULL, 16);
 		if (strcmp(key, "period") == 0)
-			ped->ped_umask = strtol(value, NULL, 10);
+			ped->ped_period = strtol(value, NULL, 10);
 	}
 	free(event);
 	return (0);
@@ -112,6 +148,7 @@ pmcstat_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(event_name)) == NULL)
 		return (DEFAULT_SAMPLE_COUNT);
 	if (pe->alias && (pe = pmu_event_get(pe->alias)) == NULL)