From: tip-bot for Mathieu Desnoyers <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: davejwatson@fb.com, mingo@kernel.org, cl@linux.com,
linux-kernel@vger.kernel.org, linux@arm.linux.org.uk,
mathieu.desnoyers@efficios.com, rostedt@goodmis.org,
joelaf@google.com, catalin.marinas@arm.com,
mtk.manpages@gmail.com, luto@amacapital.net,
boqun.feng@gmail.com, pjt@google.com, bmaurer@fb.com,
shuah@kernel.org, paulmck@linux.vnet.ibm.com,
akpm@linux-foundation.org, will.deacon@arm.com,
torvalds@linux-foundation.org, tglx@linutronix.de,
peterz@infradead.org, hpa@zytor.com, josh@joshtriplett.org
Subject: [tip:core/rseq] rseq/selftests: Adapt number of threads to the number of detected CPUs
Date: Fri, 19 Apr 2019 03:46:00 -0700 [thread overview]
Message-ID: <tip-03a33ecc26af28ca9535de2b0612c54deafa9728@git.kernel.org> (raw)
In-Reply-To: <20190305194755.2602-4-mathieu.desnoyers@efficios.com>
Commit-ID: 03a33ecc26af28ca9535de2b0612c54deafa9728
Gitweb: https://git.kernel.org/tip/03a33ecc26af28ca9535de2b0612c54deafa9728
Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
AuthorDate: Tue, 5 Mar 2019 14:47:55 -0500
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Fri, 19 Apr 2019 12:42:14 +0200
rseq/selftests: Adapt number of threads to the number of detected CPUs
On smaller systems, running a test with 200 threads can take a long
time on machines with smaller number of CPUs.
Detect the number of online CPUs at test runtime, and multiply that
by 6 to have 6 rseq threads per CPU preempting each other.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Ben Maurer <bmaurer@fb.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Lameter <cl@linux.com>
Cc: Dave Watson <davejwatson@fb.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-api@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Link: http://lkml.kernel.org/r/20190305194755.2602-4-mathieu.desnoyers@efficios.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
tools/testing/selftests/rseq/run_param_test.sh | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/rseq/run_param_test.sh b/tools/testing/selftests/rseq/run_param_test.sh
index 3acd6d75ff9f..e426304fd4a0 100755
--- a/tools/testing/selftests/rseq/run_param_test.sh
+++ b/tools/testing/selftests/rseq/run_param_test.sh
@@ -1,6 +1,8 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+ or MIT
+NR_CPUS=`grep '^processor' /proc/cpuinfo | wc -l`
+
EXTRA_ARGS=${@}
OLDIFS="$IFS"
@@ -28,15 +30,16 @@ IFS="$OLDIFS"
REPS=1000
SLOW_REPS=100
+NR_THREADS=$((6*${NR_CPUS}))
function do_tests()
{
local i=0
while [ "$i" -lt "${#TEST_LIST[@]}" ]; do
echo "Running test ${TEST_NAME[$i]}"
- ./param_test ${TEST_LIST[$i]} -r ${REPS} ${@} ${EXTRA_ARGS} || exit 1
+ ./param_test ${TEST_LIST[$i]} -r ${REPS} -t ${NR_THREADS} ${@} ${EXTRA_ARGS} || exit 1
echo "Running compare-twice test ${TEST_NAME[$i]}"
- ./param_test_compare_twice ${TEST_LIST[$i]} -r ${REPS} ${@} ${EXTRA_ARGS} || exit 1
+ ./param_test_compare_twice ${TEST_LIST[$i]} -r ${REPS} -t ${NR_THREADS} ${@} ${EXTRA_ARGS} || exit 1
let "i++"
done
}
next prev parent reply other threads:[~2019-04-19 19:06 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-05 19:47 [PATCH for 5.1 0/3] Restartable Sequences updates for 5.1 Mathieu Desnoyers
2019-03-05 19:47 ` [PATCH for 5.1 1/3] rseq: cleanup: Reflect removal of event counter in comments Mathieu Desnoyers
2019-04-19 10:43 ` [tip:core/rseq] rseq: Clean up comments by reflecting removal of event counter tip-bot for Mathieu Desnoyers
2019-03-05 19:47 ` [PATCH for 5.1 2/3] rseq: cleanup: remove rseq_len from task_struct Mathieu Desnoyers
2019-04-19 10:43 ` [tip:core/rseq] rseq: Remove superfluous " tip-bot for Mathieu Desnoyers
2019-03-05 19:47 ` [PATCH for 5.1 3/3] rseq/selftests: Adapt number of threads to the number of detected cpus Mathieu Desnoyers
2019-04-19 10:38 ` Ingo Molnar
2019-04-19 12:41 ` Mathieu Desnoyers
2019-04-19 12:55 ` Mathieu Desnoyers
2019-04-19 13:42 ` Mathieu Desnoyers
2019-04-19 13:48 ` Mathieu Desnoyers
2019-04-19 14:17 ` shuah
2019-04-19 14:40 ` Mathieu Desnoyers
2019-04-19 18:57 ` shuah
2019-04-19 20:59 ` Mathieu Desnoyers
2019-04-19 21:03 ` shuah
2019-04-19 10:44 ` [tip:core/rseq] " tip-bot for Mathieu Desnoyers
2019-04-19 10:46 ` tip-bot for Mathieu Desnoyers [this message]
2019-03-05 20:18 ` [PATCH for 5.1 0/3] Restartable Sequences updates for 5.1 Mathieu Desnoyers
2019-03-05 21:58 ` Peter Zijlstra
2019-03-05 22:32 ` Mathieu Desnoyers
2019-03-06 8:21 ` Peter Zijlstra
2019-03-06 8:30 ` Peter Zijlstra
2019-03-06 17:00 ` Mathieu Desnoyers
2019-03-05 21:49 ` Peter Zijlstra
2019-04-19 10:41 ` Ingo Molnar
2019-04-19 12:42 ` Mathieu Desnoyers
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