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[PATCH] rcutorture: renice to low priority

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Make the box usable for interactive work when running the RCU torture test,
by renicing the RCU torture-test threads to +19 by default.  Kthreads run
at nice -5 by default.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2005-11-13 16:07:22 -08:00 committed by Linus Torvalds
parent 66341a905e
commit dbdf65b1b7
1 changed files with 4 additions and 0 deletions
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4
kernel/rcutorture.c
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@ -195,6 +195,8 @@ rcu_torture_writer(void *arg)
static DEFINE_RCU_RANDOM(rand); static DEFINE_RCU_RANDOM(rand);
VERBOSE_PRINTK_STRING("rcu_torture_writer task started"); VERBOSE_PRINTK_STRING("rcu_torture_writer task started");
set_user_nice(current, 19);
do { do {
schedule_timeout_uninterruptible(1); schedule_timeout_uninterruptible(1);
if (rcu_batches_completed() == oldbatch) if (rcu_batches_completed() == oldbatch)
@ -238,6 +240,8 @@ rcu_torture_reader(void *arg)
int pipe_count; int pipe_count;
VERBOSE_PRINTK_STRING("rcu_torture_reader task started"); VERBOSE_PRINTK_STRING("rcu_torture_reader task started");
set_user_nice(current, 19);
do { do {
rcu_read_lock(); rcu_read_lock();
completed = rcu_batches_completed(); completed = rcu_batches_completed();