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f166b111e0
Based on Google-internal RSEQ work done by Paul Turner and Andrew Hunter. This patch adds a selftest for MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ. The test quite often fails without the previous patch in this patchset, but consistently passes with it. Signed-off-by: Peter Oskolkov <posk@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Link: https://lkml.kernel.org/r/20200923233618.2572849-3-posk@google.com
127 lines
1.9 KiB
Bash
Executable File
127 lines
1.9 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0+ or MIT
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NR_CPUS=`grep '^processor' /proc/cpuinfo | wc -l`
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EXTRA_ARGS=${@}
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OLDIFS="$IFS"
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IFS=$'\n'
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TEST_LIST=(
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"-T s"
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"-T l"
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"-T b"
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"-T b -M"
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"-T m"
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"-T m -M"
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"-T i"
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"-T r"
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)
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TEST_NAME=(
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"spinlock"
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"list"
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"buffer"
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"buffer with barrier"
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"memcpy"
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"memcpy with barrier"
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"increment"
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"membarrier"
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)
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IFS="$OLDIFS"
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REPS=1000
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SLOW_REPS=100
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NR_THREADS=$((6*${NR_CPUS}))
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function do_tests()
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{
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local i=0
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while [ "$i" -lt "${#TEST_LIST[@]}" ]; do
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echo "Running test ${TEST_NAME[$i]}"
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./param_test ${TEST_LIST[$i]} -r ${REPS} -t ${NR_THREADS} ${@} ${EXTRA_ARGS} || exit 1
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echo "Running compare-twice test ${TEST_NAME[$i]}"
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./param_test_compare_twice ${TEST_LIST[$i]} -r ${REPS} -t ${NR_THREADS} ${@} ${EXTRA_ARGS} || exit 1
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let "i++"
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done
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}
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echo "Default parameters"
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do_tests
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echo "Loop injection: 10000 loops"
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OLDIFS="$IFS"
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IFS=$'\n'
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INJECT_LIST=(
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"1"
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"2"
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"3"
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"4"
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"5"
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"6"
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"7"
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"8"
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"9"
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)
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IFS="$OLDIFS"
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NR_LOOPS=10000
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i=0
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while [ "$i" -lt "${#INJECT_LIST[@]}" ]; do
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echo "Injecting at <${INJECT_LIST[$i]}>"
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do_tests -${INJECT_LIST[i]} ${NR_LOOPS}
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let "i++"
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done
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NR_LOOPS=
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function inject_blocking()
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{
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OLDIFS="$IFS"
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IFS=$'\n'
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INJECT_LIST=(
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"7"
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"8"
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"9"
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)
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IFS="$OLDIFS"
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NR_LOOPS=-1
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i=0
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while [ "$i" -lt "${#INJECT_LIST[@]}" ]; do
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echo "Injecting at <${INJECT_LIST[$i]}>"
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do_tests -${INJECT_LIST[i]} -1 ${@}
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let "i++"
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done
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NR_LOOPS=
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}
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echo "Yield injection (25%)"
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inject_blocking -m 4 -y
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echo "Yield injection (50%)"
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inject_blocking -m 2 -y
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echo "Yield injection (100%)"
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inject_blocking -m 1 -y
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echo "Kill injection (25%)"
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inject_blocking -m 4 -k
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echo "Kill injection (50%)"
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inject_blocking -m 2 -k
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echo "Kill injection (100%)"
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inject_blocking -m 1 -k
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echo "Sleep injection (1ms, 25%)"
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inject_blocking -m 4 -s 1
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echo "Sleep injection (1ms, 50%)"
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inject_blocking -m 2 -s 1
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echo "Sleep injection (1ms, 100%)"
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inject_blocking -m 1 -s 1
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