perf add cpuclock and annotate example

21cnbao · 21cnbao · commit c5984a2e64f4 · 2017-04-05T07:08:59.000+08:00
Signed-off-by: Barry Song &lt;21cnbao@gmail.com&gt;
diff --git a/debug/perf-cpuclock/a.out b/debug/perf-cpuclock/a.out
diff --git a/debug/perf-cpuclock/main.c b/debug/perf-cpuclock/main.c
@@ -0,0 +1,9 @@
+main()
+{
+	volatile int i,j,k;
+	while(1) {
+		for(i=0;i<100000;i++);
+		for(j=0;j<200000;j++);
+		for(k=0;k<300000;k++);
+	}
+}
diff --git a/debug/perf-cpuclock/readme b/debug/perf-cpuclock/readme
@@ -0,0 +1,2 @@
+sudo perf record -e cpu-clock ./a.out
+sudo perf annotate

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+sudo perf record -e cpu-clock ./a.out`
	`2`	`+sudo perf annotate`