From: Paul E. McKenney Date: Thu, 19 Dec 2013 00:56:22 +0000 (-0800) Subject: rcutorture: Print grace-period performance statistics X-Git-Tag: v3.15-rc1~183^2~1^2^2~53 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=c7e8240db112a128ca09cfc9ee0db1bafd7229ec;p=linux.git rcutorture: Print grace-period performance statistics Sometime problems can manifest themselves as unusually slow grace periods. This commit therefore prints the number of rcutorture updates during the test and the number per second. These statistics are harvested from the config.out and qemu-cmd files, and are silently omitted if these files are not available, as would be the case if there was a build failure or a boot-time hang. Signed-off-by: Paul E. McKenney Reviewed-by: Josh Triplett --- diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh index baef09f3469b..e3b1af3677e3 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh @@ -31,7 +31,24 @@ do for i in $dirs do configfile=`echo $i | sed -e 's/^.*\///'` - echo $configfile + ngps=`grep ver: $i/console.log 2> /dev/null | tail -1 | sed -e 's/^.* ver: //' -e 's/ .*$//'` + if test -z "$ngps" + then + echo $configfile + else + title="$configfile ------- $ngps grace periods" + dur=`sed -e 's/^.* rcutorture.shutdown_secs=//' -e 's/ .*$//' < $i/qemu-cmd 2> /dev/null` + if test -z "$dur" + then + : + else + ngpsps=$((ngps / dur)) + ngpsps=`awk -v ngps=$ngps -v dur=$dur ' + BEGIN { print ngps / dur }' < /dev/null` + title="$title ($ngpsps per second)" + fi + echo $title + fi configcheck.sh $i/.config $i/ConfigFragment parse-build.sh $i/Make.out $configfile parse-rcutorture.sh $i/console.log $configfile