From: "Paul E. McKenney" <paulmck@linux.ibm.com>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, mingo@kernel.org,
jiangshanlai@gmail.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org,
"Paul E. McKenney" <paulmck@linux.ibm.com>
Subject: [PATCH tip/core/rcu 09/21] rcutorture: Exempt TREE01 from forward-progress testing
Date: Thu, 30 May 2019 08:17:00 -0700 [thread overview]
Message-ID: <20190530151712.1612-9-paulmck@linux.ibm.com> (raw)
In-Reply-To: <20190530151650.GA422@linux.ibm.com>
Because TREE01 can end up running more vCPUs that physical CPUs,
hammering these shortchanged CPUs with tight loops containing call_rcu()
invocations seems a bit like overkill. This commit therefore exempts
TREE01 from rcutorture's forward-progress testing.
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
---
tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot
index ea47da95374b..d6da9a61d44a 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot
@@ -3,3 +3,4 @@ rcutree.gp_preinit_delay=3
rcutree.gp_init_delay=3
rcutree.gp_cleanup_delay=3
rcu_nocbs=0
+rcutorture.fwd_progress=0
--
2.17.1
next prev parent reply other threads:[~2019-05-30 15:18 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-30 15:16 [PATCH tip/core/rcu 0/21] Torture-test updates for v5.3 Paul E. McKenney
2019-05-30 15:16 ` [PATCH tip/core/rcu 01/21] rcutorture: Select from only online CPUs Paul E. McKenney
2019-05-30 15:16 ` [PATCH tip/core/rcu 02/21] rcutorture: Add cpu0 to the set of CPUs to add jitter Paul E. McKenney
2019-05-30 15:16 ` [PATCH tip/core/rcu 03/21] rcutorture: Add cond_resched() to forward-progress free-up loop Paul E. McKenney
2019-05-30 15:16 ` [PATCH tip/core/rcu 04/21] rcutorture: Fix stutter_wait() return value and freelist checks Paul E. McKenney
2019-05-30 15:16 ` [PATCH tip/core/rcu 05/21] torture: Allow inter-stutter interval to be specified Paul E. McKenney
2019-05-30 15:16 ` [PATCH tip/core/rcu 06/21] torture: Make kvm-find-errors.sh and kvm-recheck.sh provide exit status Paul E. McKenney
2019-05-30 15:16 ` [PATCH tip/core/rcu 07/21] rcutorture: Provide rudimentary Makefile Paul E. McKenney
2019-05-30 15:16 ` [PATCH tip/core/rcu 08/21] rcutorture: Exempt tasks RCU from timely draining of grace periods Paul E. McKenney
2019-05-30 15:17 ` Paul E. McKenney [this message]
2019-05-30 15:17 ` [PATCH tip/core/rcu 10/21] rcutorture: Give the scheduler a chance on PREEMPT && NO_HZ_FULL kernels Paul E. McKenney
2019-05-30 15:17 ` [PATCH tip/core/rcu 11/21] rcutorture: Halt forward-progress checks at end of run Paul E. McKenney
2019-05-30 15:17 ` [PATCH tip/core/rcu 12/21] rcutorture: Add trivial RCU implementation Paul E. McKenney
2019-05-30 15:17 ` [PATCH tip/core/rcu 13/21] rcutorture: Tweak kvm options Paul E. McKenney
2019-05-30 15:17 ` [PATCH tip/core/rcu 14/21] torture: Capture qemu output Paul E. McKenney
2019-05-30 15:17 ` [PATCH tip/core/rcu 15/21] torture: Add function graph-tracing cheat sheet Paul E. McKenney
2019-05-30 15:17 ` [PATCH tip/core/rcu 16/21] torture: Run kernel build in source directory Paul E. McKenney
2019-05-30 15:17 ` [PATCH tip/core/rcu 17/21] torture: Make --cpus override idleness calculations Paul E. McKenney
2019-05-30 15:17 ` [PATCH tip/core/rcu 18/21] torture: Add --trust-make to suppress "make clean" Paul E. McKenney
2019-05-30 15:17 ` [PATCH tip/core/rcu 19/21] rcutorture: Dump trace buffer for callback pipe drain failures Paul E. McKenney
2019-05-30 15:17 ` [PATCH tip/core/rcu 20/21] torture: Suppress propagating trace_printk() warning Paul E. McKenney
2019-05-30 15:17 ` [PATCH tip/core/rcu 21/21] rcutorture: Upper case solves the case of the vanishing NULL pointer Paul E. McKenney
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190530151712.1612-9-paulmck@linux.ibm.com \
--to=paulmck@linux.ibm.com \
--cc=akpm@linux-foundation.org \
--cc=dhowells@redhat.com \
--cc=dipankar@in.ibm.com \
--cc=edumazet@google.com \
--cc=fweisbec@gmail.com \
--cc=jiangshanlai@gmail.com \
--cc=joel@joelfernandes.org \
--cc=josh@joshtriplett.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=mingo@kernel.org \
--cc=oleg@redhat.com \
--cc=peterz@infradead.org \
--cc=rcu@vger.kernel.org \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox