diff mbox series

[v1,13/13] perf jevents: Add cycles breakdown metric for AMD

Message ID 20240229001537.4158049-14-irogers@google.com
State New
Headers
Series Python generated AMD Zen metrics |

Commit Message

Ian Rogers Feb. 29, 2024, 12:15 a.m. UTC 
  Breakdown cycles to user, kernel and guest.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/pmu-events/amd_metrics.py | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
diff mbox series

Patch

diff --git a/tools/perf/pmu-events/amd_metrics.py b/tools/perf/pmu-events/amd_metrics.py
index 377ce413d051..2def2adf232e 100755
--- a/tools/perf/pmu-events/amd_metrics.py
+++ b/tools/perf/pmu-events/amd_metrics.py
@@ -572,6 +572,24 @@  def AmdUpc() -> Metric:
   return Metric("upc", "Micro-ops retired per core cycle (higher is better)",
                 upc, "uops/cycle")
 
+
+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/")
@@ -628,6 +646,7 @@  all_metrics = MetricGroup("", [
     AmdHwpf(),
     AmdSwpf(),
     AmdUpc(),
+    Cycles(),
     Idle(),
     Rapl(),
     UncoreL3(),