The following commit has been merged into the core/rcu branch of tip: Commit-ID: f8b4bb23ec014a5d16663ad70b45d9f46c456ec4 Gitweb: https://git.kernel.org/tip/f8b4bb23ec014a5d16663ad70b45d9f46c456ec4 Author: Paul E. McKenney <[email protected]> AuthorDate: Mon, 25 May 2020 14:07:52 -07:00 Committer: Paul E. McKenney <[email protected]> CommitterDate: Mon, 29 Jun 2020 12:00:44 -07:00
torture: Add refperf to the rcutorture scripting This commit updates the rcutorture scripting to include the new refperf torture-test module. Cc: Joel Fernandes (Google) <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]> --- tools/testing/selftests/rcutorture/bin/kvm-recheck-refperf.sh | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ tools/testing/selftests/rcutorture/bin/kvm.sh | 9 +++++---- tools/testing/selftests/rcutorture/bin/parse-console.sh | 4 ++-- tools/testing/selftests/rcutorture/configs/refperf/CFLIST | 2 ++ tools/testing/selftests/rcutorture/configs/refperf/CFcommon | 2 ++ tools/testing/selftests/rcutorture/configs/refperf/NOPREEMPT | 18 ++++++++++++++++++ tools/testing/selftests/rcutorture/configs/refperf/PREEMPT | 18 ++++++++++++++++++ tools/testing/selftests/rcutorture/configs/refperf/ver_functions.sh | 16 ++++++++++++++++ 8 files changed, 130 insertions(+), 6 deletions(-) create mode 100755 tools/testing/selftests/rcutorture/bin/kvm-recheck-refperf.sh create mode 100644 tools/testing/selftests/rcutorture/configs/refperf/CFLIST create mode 100644 tools/testing/selftests/rcutorture/configs/refperf/CFcommon create mode 100644 tools/testing/selftests/rcutorture/configs/refperf/NOPREEMPT create mode 100644 tools/testing/selftests/rcutorture/configs/refperf/PREEMPT create mode 100644 tools/testing/selftests/rcutorture/configs/refperf/ver_functions.sh diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-refperf.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-refperf.sh new file mode 100755 index 0000000..6fc06cd --- /dev/null +++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-refperf.sh @@ -0,0 +1,67 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0+ +# +# Analyze a given results directory for refperf performance measurements. +# +# Usage: kvm-recheck-refperf.sh resdir +# +# Copyright (C) IBM Corporation, 2016 +# +# Authors: Paul E. McKenney <[email protected]> + +i="$1" +if test -d "$i" -a -r "$i" +then + : +else + echo Unreadable results directory: $i + exit 1 +fi +PATH=`pwd`/tools/testing/selftests/rcutorture/bin:$PATH; export PATH +. functions.sh + +configfile=`echo $i | sed -e 's/^.*\///'` + +sed -e 's/^\[[^]]*]//' < $i/console.log | tr -d '\015' | +awk -v configfile="$configfile" ' +/^[ ]*Threads Time\(ns\) *$/ { + if (dataphase + 0 == 0) { + dataphase = 1; + # print configfile, $0; + } + next; +} + +/[^ ]*[0-9][0-9]* [0-9][0-9]*\.[0-9][0-9]*$/ { + if (dataphase == 1) { + # print $0; + readertimes[++n] = $2; + sum += $2; + } + next; +} + +{ + if (dataphase == 1) + dataphase == 2; + next; +} + +END { + print configfile " results:"; + newNR = asort(readertimes); + if (newNR <= 0) { + print "No refperf records found???" + exit; + } + medianidx = int(newNR / 2); + if (newNR == medianidx * 2) + medianvalue = (readertimes[medianidx - 1] + readertimes[medianidx]) / 2; + else + medianvalue = readertimes[medianidx]; + print "Average reader duration: " sum / newNR " nanoseconds"; + print "Minimum reader duration: " readertimes[1]; + print "Median reader duration: " medianvalue; + print "Maximum reader duration: " readertimes[newNR]; + print "Computed from refperf printk output."; +}' diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh index c279cf9..48b6a72 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm.sh @@ -180,13 +180,14 @@ do shift ;; --torture) - checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuperf\)$' '^--' + checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuperf\|refperf\)$' '^--' TORTURE_SUITE=$2 shift - if test "$TORTURE_SUITE" = rcuperf + if test "$TORTURE_SUITE" = rcuperf || test "$TORTURE_SUITE" = refperf then - # If you really want jitter for rcuperf, specify - # it after specifying rcuperf. (But why?) + # If you really want jitter for refperf or + # rcuperf, specify it after specifying the rcuperf + # or the refperf. (But why jitter in these cases?) jitter=0 fi ;; diff --git a/tools/testing/selftests/rcutorture/bin/parse-console.sh b/tools/testing/selftests/rcutorture/bin/parse-console.sh index 4bf62d7..85af11d 100755 --- a/tools/testing/selftests/rcutorture/bin/parse-console.sh +++ b/tools/testing/selftests/rcutorture/bin/parse-console.sh @@ -33,8 +33,8 @@ then fi cat /dev/null > $file.diags -# Check for proper termination, except that rcuperf runs don't indicate this. -if test "$TORTURE_SUITE" != rcuperf +# Check for proper termination, except for rcuperf and refperf. +if test "$TORTURE_SUITE" != rcuperf && test "$TORTURE_SUITE" != refperf then # check for abject failure diff --git a/tools/testing/selftests/rcutorture/configs/refperf/CFLIST b/tools/testing/selftests/rcutorture/configs/refperf/CFLIST new file mode 100644 index 0000000..4d62eb4 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/refperf/CFLIST @@ -0,0 +1,2 @@ +NOPREEMPT +PREEMPT diff --git a/tools/testing/selftests/rcutorture/configs/refperf/CFcommon b/tools/testing/selftests/rcutorture/configs/refperf/CFcommon new file mode 100644 index 0000000..8ba5ba2 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/refperf/CFcommon @@ -0,0 +1,2 @@ +CONFIG_RCU_REF_PERF_TEST=y +CONFIG_PRINTK_TIME=y diff --git a/tools/testing/selftests/rcutorture/configs/refperf/NOPREEMPT b/tools/testing/selftests/rcutorture/configs/refperf/NOPREEMPT new file mode 100644 index 0000000..1cd25b7 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/refperf/NOPREEMPT @@ -0,0 +1,18 @@ +CONFIG_SMP=y +CONFIG_PREEMPT_NONE=y +CONFIG_PREEMPT_VOLUNTARY=n +CONFIG_PREEMPT=n +#CHECK#CONFIG_PREEMPT_RCU=n +CONFIG_HZ_PERIODIC=n +CONFIG_NO_HZ_IDLE=y +CONFIG_NO_HZ_FULL=n +CONFIG_RCU_FAST_NO_HZ=n +CONFIG_HOTPLUG_CPU=n +CONFIG_SUSPEND=n +CONFIG_HIBERNATION=n +CONFIG_RCU_NOCB_CPU=n +CONFIG_DEBUG_LOCK_ALLOC=n +CONFIG_PROVE_LOCKING=n +CONFIG_RCU_BOOST=n +CONFIG_DEBUG_OBJECTS_RCU_HEAD=n +CONFIG_RCU_EXPERT=y diff --git a/tools/testing/selftests/rcutorture/configs/refperf/PREEMPT b/tools/testing/selftests/rcutorture/configs/refperf/PREEMPT new file mode 100644 index 0000000..d10bc69 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/refperf/PREEMPT @@ -0,0 +1,18 @@ +CONFIG_SMP=y +CONFIG_PREEMPT_NONE=n +CONFIG_PREEMPT_VOLUNTARY=n +CONFIG_PREEMPT=y +#CHECK#CONFIG_PREEMPT_RCU=y +CONFIG_HZ_PERIODIC=n +CONFIG_NO_HZ_IDLE=y +CONFIG_NO_HZ_FULL=n +CONFIG_RCU_FAST_NO_HZ=n +CONFIG_HOTPLUG_CPU=n +CONFIG_SUSPEND=n +CONFIG_HIBERNATION=n +CONFIG_RCU_NOCB_CPU=n +CONFIG_DEBUG_LOCK_ALLOC=n +CONFIG_PROVE_LOCKING=n +CONFIG_RCU_BOOST=n +CONFIG_DEBUG_OBJECTS_RCU_HEAD=n +CONFIG_RCU_EXPERT=y diff --git a/tools/testing/selftests/rcutorture/configs/refperf/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/refperf/ver_functions.sh new file mode 100644 index 0000000..489f05d --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/refperf/ver_functions.sh @@ -0,0 +1,16 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0+ +# +# Torture-suite-dependent shell functions for the rest of the scripts. +# +# Copyright (C) IBM Corporation, 2015 +# +# Authors: Paul E. McKenney <[email protected]> + +# per_version_boot_params bootparam-string config-file seconds +# +# Adds per-version torture-module parameters to kernels supporting them. +per_version_boot_params () { + echo $1 refperf.shutdown=1 \ + refperf.verbose=1 +}
