diff mbox series

[v1,2/2] perf jevents: Add cycles breakdown metric for arm64

Message ID 20240229001325.4157655-3-irogers@google.com
State New
Headers
Series Python generated Arm64 metrics |

Commit Message

Ian Rogers Feb. 29, 2024, 12:13 a.m. UTC 
  Breakdown cycles to user, kernel and guest.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/pmu-events/arm64_metrics.py | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
diff mbox series

Patch

diff --git a/tools/perf/pmu-events/arm64_metrics.py b/tools/perf/pmu-events/arm64_metrics.py
index 0dcf5236ea1f..e1874d8024c1 100755
--- a/tools/perf/pmu-events/arm64_metrics.py
+++ b/tools/perf/pmu-events/arm64_metrics.py
@@ -152,8 +152,26 @@  def Arm64Topdown() -> MetricGroup:
   ])
 
 
+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)")
+
+
 all_metrics = MetricGroup("",[
     Arm64Topdown(),
+    Cycles(),
 ])
 
 if args.metricgroups: