linux_perf_event: do not exclude_idle on aarch64

Commit 93f19d3 added `exclude_idle = 1` to `linux_perf_event`. However, as reported in scylladb/scylladb#19227 (comment), `exclude_idle` is not supported on ARM platforms. This change skips setting `exclude_idle` on aarch64 assuming it is initialized to 0 as all other unset bitfields in `perf_event_attr`. Signed-off-by: Benny Halevy <[email protected]>
bhalevy · Jun 14, 2024 · 89ce5f7 · 89ce5f7
1 parent d7bd2e7
commit 89ce5f7
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/tests/perf/linux_perf_event.cc b/tests/perf/linux_perf_event.cc
@@ -90,7 +90,9 @@ linux_perf_event::user_instructions_retired() {
             .disabled = 1,
             .exclude_kernel = 1,
             .exclude_hv = 1,
+#if !defined(__aarch64__)
             .exclude_idle = 1,
+#endif
             }, 0, -1, -1, 0);
 }
 
@@ -103,6 +105,8 @@ linux_perf_event::user_cpu_cycles_retired() {
             .disabled = 1,
             .exclude_kernel = 1,
             .exclude_hv = 1,
+#if !defined(__aarch64__)
             .exclude_idle = 1,
+#endif
             }, 0, -1, -1, 0);
 }