diff options
| author | Clark Williams <williams@redhat.com> | 2010-04-09 13:06:33 -0500 |
|---|---|---|
| committer | Clark Williams <williams@redhat.com> | 2010-04-09 13:06:33 -0500 |
| commit | d6c4ab8698926a0bac6eae2bc9c563d6fd3103b9 (patch) | |
| tree | c2a5a5722bbf993b24119ac08a9aab91479c3bd7 | |
| parent | ba12344ecb211627fdbb303d68ac6757d54d71d5 (diff) | |
| download | rt-tests-d6c4ab8698926a0bac6eae2bc9c563d6fd3103b9.tar.gz | |
default cyclictest to SCHED_OTHER; clean up help message
After much thought, I decided to keep cyclictest's default scheduling
policy as SCHED_OTHER. My rationale is that if you don't specify a
priority on the command line you get the priorityless policy. If you
do specify a priority but no specific RT policy, we'll default to
SCHED_FIFO. So to get SCHED_RR you have to specify priorty and policy
name, for example:
# cyclictest --priority=90 --policy=rr
Yes, I realize that the vast majority of users will run it with a
realtime priority, but I just don't like picking a priority if it
wasn't specified. If you want a realtime policy, specify a priority.
Signed-off-by: Clark Williams <williams@redhat.com>
| -rw-r--r-- | src/cyclictest/cyclictest.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/cyclictest/cyclictest.c b/src/cyclictest/cyclictest.c index 92b7514..3a7e752 100644 --- a/src/cyclictest/cyclictest.c +++ b/src/cyclictest/cyclictest.c @@ -801,7 +801,7 @@ static void display_help(int error) " format: n:c:v n=tasknum c=count v=value in us\n" "-w --wakeup task wakeup tracing (used with -b)\n" "-W --wakeuprt rt task wakeup tracing (used with -b)\n" - "-y POLI --policy=POLI policy of realtime thread (1:FIFO, 2:RR)\n" + "-y POLI --policy=POLI policy of realtime thread, POLI may be fifo(default) or rr\n" " format: --policy=fifo(default) or --policy=rr\n" "-S --smp Standard SMP testing: options -a -t -n and\n" " same priority of all threads\n" @@ -818,7 +818,7 @@ static int use_nanosleep; static int timermode = TIMER_ABSTIME; static int use_system; static int priority; -static int policy = SCHED_FIFO; /* default policy if not specified */ +static int policy = SCHED_OTHER; /* default policy if not specified */ static int num_threads = 1; static int max_cycles; static int clocksel = 0; @@ -853,7 +853,7 @@ static void handlepolicy(char *polname) else if (strncasecmp(polname, "rr", 2) == 0) policy = SCHED_RR; else /* default policy if we don't recognize the request */ - policy = SCHED_FIFO; + policy = SCHED_OTHER; } static char *policyname(int policy) |