torture: Adjust rcuperf trace processing to allow for workqueues (cc839ce5) · Commits · 戴 / test

The rcuperf event-trace processing assumes that expedited grace periods start and end on the same task, an assumption that was violated by moving expedited grace-period processing to workqueues. This commit removes this now-fallacious assumption from rcuperf's event-trace processing. Signed-off-by:

Paul E. McKenney <paulmck@linux.vnet.ibm.com>

tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh

+4 −4

Original line number	Diff line number	Diff line
		@@ -39,7 +39,7 @@ sed -e 's/us : / : /' \|
		tr -d '\015' \|
		awk '
		$8 == "start" {
		if (starttask != "")
		if (startseq != "")
		nlost++;
		starttask = $1;
		starttime = $3;
		@@ -47,17 +47,17 @@ $8 == "start" {
		}

		$8 == "end" {
		if (starttask == $1 && startseq == $7) {
		if (startseq == $7) {
		curgpdur = $3 - starttime;
		gptimes[++n] = curgpdur;
		gptaskcnt[starttask]++;
		sum += curgpdur;
		if (curgpdur > 1000)
		print "Long GP " starttime "us to " $3 "us (" curgpdur "us)";
		starttask = "";
		startseq = "";
		} else {
		# Lost a message or some such, reset.
		starttask = "";
		startseq = "";
		nlost++;
		}
		}

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