[PATCH 2/2] perf kvm: Delete histograms entries before exiting

Leo Yan
2023-03-20T06:16:48Z

It's good not to release resources for a program when kernel cleans up
memory space, this patch explicitly releases histograms entries with
hists__delete_entries().

Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
tools/perf/builtin-kvm.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 1e1cb5a9d0a2..fb9dc0dc46f9 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1528,6 +1528,8 @@ static int kvm_events_live_report(struct perf_kvm_stat *kvm)
}

out:
+ hists__delete_entries(&kvm_hists.hists);
+
if (kvm->timerfd >= 0)
close(kvm->timerfd);

@@ -1690,6 +1692,7 @@ static int kvm_events_report_vcpu(struct perf_kvm_stat *kvm)
kvm_display(kvm);

exit:
+ hists__delete_entries(&kvm_hists.hists);
return ret;
}

--
2.39.2