test: fix test-linux-perf flakiness

mmarchini · targos · commit 691866f12467 · 2019-05-11T11:14:14.000+02:00
The new V8 seems to be optimizing the functions we use in this test faster than before. Increasing the sampling frequency for Linux perf fixes the issue. PR-URL: #27615 Refs: v8/v8@7.4.288.21...7.4.288.27 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
diff --git a/test/v8-updates/test-linux-perf.js b/test/v8-updates/test-linux-perf.js
@@ -24,7 +24,7 @@ if (process.config.variables.node_shared)
 
 const perfArgs = [
   'record',
-  '-F500',
+  '-F999',
   '-g',
   '--',
   process.execPath,
