[v1,4/4] perf record: Dump off-cpu samples directly

Commit Message

Howard Chu April 22, 2024, 8:40 a.m. UTC

Since `--off-cpu` uses the same ring buffer as hardware samples, and `perf
record --off-cpu -e dummy sleep 1` does not enable evlist, off-cpu samples
cannot be read.`test_offcpu_basic` fails and is no longer necessary.

Signed-off-by: Howard Chu <[e-mail]>
---
 tools/perf/tests/shell/record_offcpu.sh | 29 -------------------------
 1 file changed, 29 deletions(-)

Patch

diff --git a/tools/perf/tests/shell/record_offcpu.sh b/tools/perf/tests/shell/record_offcpu.sh
index 67c925f3a15a..c446c0cdee4f 100755
--- a/tools/perf/tests/shell/record_offcpu.sh
+++ b/tools/perf/tests/shell/record_offcpu.sh
@@ -36,30 +36,6 @@  test_offcpu_priv() {
   fi
 }
 
-test_offcpu_basic() {
-  echo "Basic off-cpu test"
-
-  if ! perf record --off-cpu -e dummy -o ${perfdata} sleep 1 2> /dev/null
-  then
-    echo "Basic off-cpu test [Failed record]"
-    err=1
-    return
-  fi
-  if ! perf evlist -i ${perfdata} | grep -q "offcpu-time"
-  then
-    echo "Basic off-cpu test [Failed no event]"
-    err=1
-    return
-  fi
-  if ! perf report -i ${perfdata} -q --percent-limit=90 | grep -E -q sleep
-  then
-    echo "Basic off-cpu test [Failed missing output]"
-    err=1
-    return
-  fi
-  echo "Basic off-cpu test [Success]"
-}
-
 test_offcpu_child() {
   echo "Child task off-cpu test"
 
@@ -88,13 +64,8 @@  test_offcpu_child() {
   echo "Child task off-cpu test [Success]"
 }
 
-
 test_offcpu_priv
 
-if [ $err = 0 ]; then
-  test_offcpu_basic
-fi
-
 if [ $err = 0 ]; then
   test_offcpu_child
 fi