UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

perf kvm: Introduce histograms data structures 

This is a preparation to support histograms in perf kvm tool.  As first
step, this patch defines histograms data structures and initialize them.

Committer notes:

Those are only used by functions enclosed in:

  #if efined(HAVE_KVM_STAT_SUPPORT) && defined(HAVE_LIBTRACEEVENT)

So do this for these new functions and struct as well.

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230315145112.186603-2-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Leo Yan 2023-03-15 22:51:02 +08:00 committed by Arnaldo Carvalho de Melo
parent 2d31e0bff2
commit 2d08124b08
2 changed files with 19 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
tools/perf/builtin-kvm.c
View File

@ -85,6 +85,20 @@ static struct kvm_event_key keys[] = {
DEF_SORT_NAME_KEY(time, mean),
{ NULL, NULL }
};
struct kvm_hists {
struct hists hists;
struct perf_hpp_list list;
};
static struct kvm_hists kvm_hists;
static int kvm_hists__init(void)
{
__hists__init(&kvm_hists.hists, &kvm_hists.list);
perf_hpp_list__init(&kvm_hists.list);
return 0;
}
#endif // defined(HAVE_KVM_STAT_SUPPORT) && defined(HAVE_LIBTRACEEVENT)
static const char *get_filename_for_perf_kvm(void)
@ -959,6 +973,8 @@ static int kvm_events_live_report(struct perf_kvm_stat *kvm)
set_term_quiet_input(&save);
init_kvm_event_record(kvm);
kvm_hists__init();
signal(SIGINT, sig_handler);
signal(SIGTERM, sig_handler);
@ -1154,6 +1170,8 @@ static int kvm_events_report_vcpu(struct perf_kvm_stat *kvm)
init_kvm_event_record(kvm);
setup_pager();
kvm_hists__init();
ret = read_events(kvm);
if (ret)
goto exit;

1
tools/perf/util/kvm-stat.h
View File

@ -5,6 +5,7 @@
#ifdef HAVE_KVM_STAT_SUPPORT
#include "tool.h"
#include "sort.h"
#include "stat.h"
#include "record.h"