From: kan.liang@linux.intel.com
To: peterz@infradead.org, acme@redhat.com, mingo@kernel.org,
linux-kernel@vger.kernel.org
Cc: jolsa@kernel.org, eranian@google.com,
alexander.shishkin@linux.intel.com, ak@linux.intel.com,
like.xu@linux.intel.com, Kan Liang <kan.liang@linux.intel.com>
Subject: [PATCH V7 13/14] perf, tools, stat: Check Topdown Metric group
Date: Thu, 23 Jul 2020 10:11:16 -0700 [thread overview]
Message-ID: <20200723171117.9918-14-kan.liang@linux.intel.com> (raw)
In-Reply-To: <20200723171117.9918-1-kan.liang@linux.intel.com>
From: Kan Liang <kan.liang@linux.intel.com>
The slots event is required in a Topdown Metric group.
Add a check to examine the Topdown Metric group. Error out if there is
no slots event detected.
Only check the group on the platform which using topdown_metric_attrs,
e.g. Ice Lake.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
---
tools/perf/builtin-stat.c | 72 +++++++++++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 078ea1485317..9886aef78440 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1441,6 +1441,72 @@ static int topdown_filter_events(const char **attr, char **str, bool use_group)
return 0;
}
+/* Event encoding for Topdown Metric events */
+#define TOPDOWN_SLOTS 0x0400
+#define TOPDOWN_RETIRE 0x8000
+#define TOPDOWN_BAD_SPEC 0x8100
+#define TOPDOWN_FE_BOUND 0x8200
+#define TOPDOWN_BE_BOUND 0x8300
+
+static bool is_topdown_metric_event(struct evsel *counter)
+{
+ if (!counter->pmu_name)
+ return false;
+
+ if (strcmp(counter->pmu_name, "cpu"))
+ return false;
+
+ if ((counter->core.attr.config == TOPDOWN_RETIRE) ||
+ (counter->core.attr.config == TOPDOWN_BAD_SPEC) ||
+ (counter->core.attr.config == TOPDOWN_FE_BOUND) ||
+ (counter->core.attr.config == TOPDOWN_BE_BOUND))
+ return true;
+
+ return false;
+}
+
+static bool is_topdown_slots_event(struct evsel *counter)
+{
+ if (!counter->pmu_name)
+ return false;
+
+ if (strcmp(counter->pmu_name, "cpu"))
+ return false;
+
+ if (counter->core.attr.config == TOPDOWN_SLOTS)
+ return true;
+
+ return false;
+}
+
+static bool topdown_check_group_member(void)
+{
+ struct evsel *counter, *leader, *member;
+ bool has_slots;
+
+ if (!pmu_have_event("cpu", topdown_metric_attrs[0]))
+ return true;
+
+ evlist__for_each_entry(evsel_list, counter) {
+ if (!is_topdown_metric_event(counter))
+ continue;
+
+ leader = counter->leader;
+ has_slots = false;
+
+ for_each_group_evsel(member, leader) {
+ if (is_topdown_slots_event(member))
+ has_slots = true;
+ counter = member;
+ }
+
+ if (!has_slots)
+ return false;
+ }
+
+ return true;
+}
+
__weak bool arch_topdown_check_group(bool *warn)
{
*warn = false;
@@ -2024,6 +2090,12 @@ int cmd_stat(int argc, const char **argv)
(const char **) stat_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
perf_stat__collect_metric_expr(evsel_list);
+
+ if (!topdown_check_group_member()) {
+ fprintf(stderr, "Topdown group must include slots event\n");
+ goto out;
+ }
+
perf_stat__init_shadow_stats();
if (stat_config.csv_sep) {
--
2.17.1
next prev parent reply other threads:[~2020-07-23 17:12 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-23 17:11 [PATCH V7 00/14] TopDown metrics support for Icelake kan.liang
2020-07-23 17:11 ` [PATCH V7 01/14] perf/x86: Use event_base_rdpmc for the RDPMC userspace support kan.liang
2020-08-19 8:52 ` [tip: perf/core] " tip-bot2 for Kan Liang
2020-07-23 17:11 ` [PATCH V7 02/14] perf/x86/intel: Name the global status bit in NMI handler kan.liang
2020-08-19 8:52 ` [tip: perf/core] " tip-bot2 for Kan Liang
2020-07-23 17:11 ` [PATCH V7 03/14] perf/x86/intel: Introduce the fourth fixed counter kan.liang
2020-08-19 8:52 ` [tip: perf/core] " tip-bot2 for Kan Liang
2020-07-23 17:11 ` [PATCH V7 04/14] perf/x86/intel: Move BTS index to 47 kan.liang
2020-08-19 8:52 ` [tip: perf/core] " tip-bot2 for Kan Liang
2020-07-23 17:11 ` [PATCH V7 05/14] perf/x86/intel: Fix the name of perf METRICS kan.liang
2020-08-19 8:52 ` [tip: perf/core] " tip-bot2 for Kan Liang
2020-07-23 17:11 ` [PATCH V7 06/14] perf/x86/intel: Use switch in intel_pmu_disable/enable_event kan.liang
2020-08-19 8:52 ` [tip: perf/core] " tip-bot2 for Kan Liang
2020-07-23 17:11 ` [PATCH V7 07/14] perf/core: Add a new PERF_EV_CAP_COEXIST event capability kan.liang
2020-07-24 10:55 ` peterz
2020-07-24 11:46 ` peterz
2020-07-24 13:43 ` Liang, Kan
2020-07-24 13:54 ` Peter Zijlstra
2020-07-24 14:19 ` Liang, Kan
2020-07-24 14:32 ` Peter Zijlstra
2020-07-24 14:46 ` Andi Kleen
2020-07-24 14:59 ` Peter Zijlstra
2020-07-24 16:43 ` peterz
2020-07-24 17:00 ` Liang, Kan
2020-07-24 14:39 ` Andi Kleen
2020-07-24 14:51 ` Peter Zijlstra
2020-08-19 8:52 ` [tip: perf/core] perf/core: Add a new PERF_EV_CAP_SIBLING " tip-bot2 for Kan Liang
2020-07-23 17:11 ` [PATCH V7 08/14] perf/x86/intel: Generic support for hardware TopDown metrics kan.liang
2020-07-24 13:19 ` peterz
2020-07-24 15:27 ` peterz
2020-07-24 16:07 ` Liang, Kan
2020-07-24 19:10 ` Liang, Kan
2020-07-28 12:32 ` Peter Zijlstra
2020-07-28 13:09 ` Peter Zijlstra
2020-07-28 13:28 ` Liang, Kan
2020-07-28 13:44 ` peterz
2020-07-28 14:01 ` Liang, Kan
2020-08-19 8:52 ` [tip: perf/core] " tip-bot2 for Kan Liang
2020-07-23 17:11 ` [PATCH V7 09/14] perf/x86: Add a macro for RDPMC offset of fixed counters kan.liang
2020-08-19 8:52 ` [tip: perf/core] " tip-bot2 for Kan Liang
2020-07-23 17:11 ` [PATCH V7 10/14] perf/x86/intel: Support TopDown metrics on Ice Lake kan.liang
2020-08-19 8:52 ` [tip: perf/core] " tip-bot2 for Kan Liang
2020-07-23 17:11 ` [PATCH V7 11/14] perf/x86/intel: Support per-thread RDPMC TopDown metrics kan.liang
2020-08-19 8:52 ` [tip: perf/core] " tip-bot2 for Kan Liang
2020-07-23 17:11 ` [PATCH V7 12/14] perf, tools, stat: Support new per thread " kan.liang
2020-07-24 3:29 ` Andi Kleen
2020-07-23 17:11 ` kan.liang [this message]
2020-07-23 17:11 ` [PATCH V7 14/14] perf, tools: Add documentation for topdown metrics kan.liang
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