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