perf: 'perf kvm' tool for monitoring guest performance from host

Here is the patch of userspace perf tool.

Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 7da5fb365264..816edae7c5b2 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -108,7 +108,7 @@ static int perf_session__add_hist_entry(struct perf_session *self,
                 return -ENOMEM;
 
         if (hit)
-                he->count += data->period;
+                __perf_session__add_count(he, al,  data->period);
 
         if (symbol_conf.use_callchain) {
                 if (!hit)
@@ -313,7 +313,7 @@ static int __cmd_report(void)
                 perf_session__fprintf(session, stdout);
 
         if (verbose > 2)
-                dsos__fprintf(stdout);
+                dsos__fprintf(&session->kerninfo_root, stdout);
 
         next = rb_first(&session->stats_by_id);
         while (next) {
@@ -450,6 +450,8 @@ static const struct option options[] = {
                    "sort by key(s): pid, comm, dso, symbol, parent"),
         OPT_BOOLEAN('P', "full-paths", &symbol_conf.full_paths,
                     "Don't shorten the pathnames taking into account the cwd"),
+        OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
+                    "Show sample percentage for different cpu modes"),
         OPT_STRING('p', "parent", &parent_pattern, "regex",
                    "regex filter to identify parent, see: '--sort parent'"),
         OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,