name : kvm-check-branches.sh #!/bin/sh # SPDX-License-Identifier: GPL-2.0+ # # Run a group of kvm.sh tests on the specified commits. This currently # unconditionally does three-minute runs on each scenario in CFLIST, # taking advantage of all available CPUs and trusting the "make" utility. # In the short term, adjustments can be made by editing this script and # CFLIST. If some adjustments appear to have ongoing value, this script # might grow some command-line arguments. # # Usage: kvm-check-branches.sh commit1 commit2..commit3 commit4 ... # # This script considers its arguments one at a time. If more elaborate # specification of commits is needed, please use "git rev-list" to # produce something that this simple script can understand. The reason # for retaining the simplicity is that it allows the user to more easily # see which commit came from which branch. # # This script creates a yyyy.mm.dd-hh.mm.ss-group entry in the "res" # directory. The calls to kvm.sh create the usual entries, but this script # moves them under the yyyy.mm.dd-hh.mm.ss-group entry, each in its own # directory numbered in run order, that is, "0001", "0002", and so on. # For successful runs, the large build artifacts are removed. Doing this # reduces the disk space required by about two orders of magnitude for # successful runs. # # Copyright (C) Facebook, 2020 # # Authors: Paul E. McKenney <paulmck@kernel.org> if ! git status > /dev/null 2>&1 then echo '!!!' This script needs to run in a git archive. 1>&2 echo '!!!' Giving up. 1>&2 exit 1 fi # Remember where we started so that we can get back at the end. curcommit="`git status | head -1 | awk '{ print $NF }'`" nfail=0 ntry=0 resdir="tools/testing/selftests/rcutorture/res" ds="`date +%Y.%m.%d-%H.%M.%S`-group" if ! test -e $resdir then mkdir $resdir || : fi mkdir $resdir/$ds echo Results directory: $resdir/$ds RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE PATH=${RCUTORTURE}/bin:$PATH; export PATH . functions.sh echo Using all `identify_qemu_vcpus` CPUs. # Each pass through this loop does one command-line argument. for gitbr in $@ do echo ' --- git branch ' $gitbr # Each pass through this loop tests one commit. for i in `git rev-list "$gitbr"` do ntry=`expr $ntry + 1` idir=`awk -v ntry="$ntry" 'END { printf "%04d", ntry; }' < /dev/null` echo ' --- commit ' $i from branch $gitbr date mkdir $resdir/$ds/$idir echo $gitbr > $resdir/$ds/$idir/gitbr echo $i >> $resdir/$ds/$idir/gitbr # Test the specified commit. git checkout $i > $resdir/$ds/$idir/git-checkout.out 2>&1 echo git checkout return code: $? "(Commit $ntry: $i)" kvm.sh --allcpus --duration 3 --trust-make --datestamp "$ds/$idir" > $resdir/$ds/$idir/kvm.sh.out 2>&1 ret=$? echo kvm.sh return code $ret for commit $i from branch $gitbr echo Run results: $resdir/$ds/$idir if test "$ret" -ne 0 then # Failure, so leave all evidence intact. nfail=`expr $nfail + 1` else # Success, so remove large files to save about 1GB. ( cd $resdir/$ds/$idir/$rrd; rm -f */vmlinux */bzImage */System.map */Module.symvers ) fi done done date # Go back to the original commit. git checkout "$curcommit" if test $nfail -ne 0 then echo '!!! ' $nfail failures in $ntry 'runs!!!' exit 1 else echo No failures in $ntry runs. exit 0 fi