name : kvm-test-1-run-batch.sh #!/bin/bash # SPDX-License-Identifier: GPL-2.0+ # # Carry out a kvm-based run for the specified batch of scenarios, which # might have been built by --build-only kvm.sh run. # # Usage: kvm-test-1-run-batch.sh SCENARIO [ SCENARIO ... ] # # Each SCENARIO is the name of a directory in the current directory # containing a ready-to-run qemu-cmd file. # # Copyright (C) 2021 Facebook, Inc. # # Authors: Paul E. McKenney <paulmck@kernel.org> T="`mktemp -d ${TMPDIR-/tmp}/kvm-test-1-run-batch.sh.XXXXXX`" trap 'rm -rf $T' 0 echo ---- Running batch $* # Check arguments runfiles= for i in "$@" do if ! echo $i | grep -q '^[^/.a-z]\+\(\.[0-9]\+\)\?$' then echo Bad scenario name: \"$i\" 1>&2 exit 1 fi if ! test -d "$i" then echo Scenario name not a directory: \"$i\" 1>&2 exit 2 fi if ! test -f "$i/qemu-cmd" then echo Scenario lacks a command file: \"$i/qemu-cmd\" 1>&2 exit 3 fi rm -f $i/build.* touch $i/build.run runfiles="$runfiles $i/build.run" done # Extract settings from the qemu-cmd file. grep '^#' $1/qemu-cmd | sed -e 's/^# //' > $T/qemu-cmd-settings . $T/qemu-cmd-settings # Start up jitter, start each scenario, wait, end jitter. echo ---- System running test: `uname -a` echo ---- Starting kernels. `date` | tee -a log $TORTURE_JITTER_START kvm-assign-cpus.sh /sys/devices/system/node > $T/cpuarray.awk for i in "$@" do echo ---- System running test: `uname -a` > $i/kvm-test-1-run-qemu.sh.out echo > $i/kvm-test-1-run-qemu.sh.out export TORTURE_AFFINITY= kvm-get-cpus-script.sh $T/cpuarray.awk $T/cpubatches.awk $T/cpustate cat << ' ___EOF___' >> $T/cpubatches.awk END { affinitylist = ""; if (!gotcpus()) { print "echo No CPU-affinity information, so no taskset command."; } else if (cpu_count !~ /^[0-9][0-9]*$/) { print "echo " scenario ": Bogus number of CPUs (old qemu-cmd?), so no taskset command."; } else { affinitylist = nextcpus(cpu_count); if (!(affinitylist ~ /^[0-9,-][0-9,-]*$/)) print "echo " scenario ": Bogus CPU-affinity information, so no taskset command."; else if (!dumpcpustate()) print "echo " scenario ": Could not dump state, so no taskset command."; else print "export TORTURE_AFFINITY=" affinitylist; } } ___EOF___ cpu_count="`grep '# TORTURE_CPU_COUNT=' $i/qemu-cmd | sed -e 's/^.*=//'`" affinity_export="`awk -f $T/cpubatches.awk -v cpu_count="$cpu_count" -v scenario=$i < /dev/null`" $affinity_export kvm-test-1-run-qemu.sh $i >> $i/kvm-test-1-run-qemu.sh.out 2>&1 & done for i in $runfiles do while ls $i > /dev/null 2>&1 do : done done echo ---- All kernel runs complete. `date` | tee -a log $TORTURE_JITTER_STOP