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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-01-31 10:12:27 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-02-21 03:22:01 +0300 |
| commit | 0da8c08d71133ba0dd9f5b24ae0b6519e00275d6 (patch) | |
| tree | 6e7d8332f9b7ed892a6f8a23cea81752654a03d8 /tools/testing/selftests/rcutorture/bin | |
| parent | cc839ce55d5c2d08bf25f9ddec6d9ee8854b87f4 (diff) | |
| download | linux-0da8c08d71133ba0dd9f5b24ae0b6519e00275d6.tar.xz | |
torture: Grace periods do not piggyback off of themselves
The rcuperf trace-event processing counted every "done" trace event
as a piggyback, which is incorrect because the task that started the
grace period didn't piggyback at all. This commit fixes this problem
by recording the task that started a given grace period and ignoring
that task's "done" record for that grace period.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'tools/testing/selftests/rcutorture/bin')
| -rwxr-xr-x | tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh index dffb553a7bcc..8948f7926b21 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh @@ -44,6 +44,7 @@ $8 == "start" { starttask = $1; starttime = $3; startseq = $7; + seqtask[startseq] = starttask; } $8 == "end" { @@ -62,7 +63,7 @@ $8 == "end" { } } -$8 == "done" { +$8 == "done" && seqtask[$7] != $1 { piggybackcnt[$1]++; } |