Received-SPF: pass (google.com: domain of linux-kernel+bounces-85906-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1;
Date: Wed, 28 Feb 2024 16:17:58 -0800
In-Reply-To: <20240229001806.4158429-1-irogers@google.com>
Message-Id: <20240229001806.4158429-14-irogers@google.com>
Precedence: bulk
Mime-Version: 1.0
References: <20240229001806.4158429-1-irogers@google.com>
Subject: [PATCH v1 13/20] perf jevents: Add cycles breakdown metric for Intel
From: Ian Rogers <irogers@google.com>
To: Perry Taylor <perry.taylor@intel.com>, Samantha Alt <samantha.alt@intel.com>, 
	Caleb Biggers <caleb.biggers@intel.com>, Weilin Wang <weilin.wang@intel.com>, 
	Edward Baker <edward.baker@intel.com>, Andi Kleen <ak@linux.intel.com>, 
	Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, 
	Arnaldo Carvalho de Melo <acme@kernel.org>, Namhyung Kim <namhyung@kernel.org>, 
	Mark Rutland <mark.rutland@arm.com>, 
	Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@kernel.org>, 
	Ian Rogers <irogers@google.com>, Adrian Hunter <adrian.hunter@intel.com>, 
	John Garry <john.g.garry@oracle.com>, Kan Liang <kan.liang@linux.intel.com>, 
	Jing Zhang <renyu.zj@linux.alibaba.com>, Thomas Richter <tmricht@linux.ibm.com>, 
	James Clark <james.clark@arm.com>, linux-kernel@vger.kernel.org, 
	linux-perf-users@vger.kernel.org, Stephane Eranian <eranian@google.com>
Content-Type: text/plain; charset="UTF-8"

Breakdown cycles to user, kernel and guest.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/pmu-events/intel_metrics.py | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events/intel_metrics.py
index dae44d296861..fef40969a4b8 100755
--- a/tools/perf/pmu-events/intel_metrics.py
+++ b/tools/perf/pmu-events/intel_metrics.py
@@ -26,6 +26,23 @@ core_cycles = Event("CPU_CLK_UNHALTED.THREAD_P_ANY",
 smt_cycles = Select(core_cycles / 2, Literal("#smt_on"), core_cycles)
 
 
+def Cycles() -> MetricGroup:
+  cyc_k = Event("cycles:kHh")
+  cyc_g = Event("cycles:G")
+  cyc_u = Event("cycles:uH")
+  cyc = cyc_k + cyc_g + cyc_u
+
+  return MetricGroup("cycles", [
+      Metric("cycles_total", "Total number of cycles", cyc, "cycles"),
+      Metric("cycles_user", "User cycles as a percentage of all cycles",
+             d_ratio(cyc_u, cyc), "100%"),
+      Metric("cycles_kernel", "Kernel cycles as a percentage of all cycles",
+             d_ratio(cyc_k, cyc), "100%"),
+      Metric("cycles_guest", "Hypervisor guest cycles as a percentage of all cycles",
+             d_ratio(cyc_g, cyc), "100%"),
+  ], description = "cycles breakdown per privilege level (users, kernel, guest)")
+
+
 def Idle() -> Metric:
   cyc = Event("msr/mperf/")
   tsc = Event("msr/tsc/")
@@ -770,6 +787,7 @@ def IntelLdSt() -> Optional[MetricGroup]:
 
 
 all_metrics = MetricGroup("", [
+    Cycles(),
     Idle(),
     Rapl(),
     Smi(),
-- 
2.44.0.278.ge034bb2e1d-goog