| Message ID | 20241014215946.1833576-1-ezulian@redhat.com |
|---|---|
| State | New |
| Headers | show |
| Series | cyclictest: Fix help text for '-a' option | expand |
On Mon, 14 Oct 2024, Eder Zulian wrote: > Fix the help text for '-a' or '--affinity' option. > > Tested with the following command (output editted to indicate thread > ranking, i.e., Thread 0 is the 1st thread, Thread 1 is the 2nd thread, > and so on): > > # cyclictest -t -a3-5,0 -t 5 -D1 -v > [...] > Thread 0 using cpu 0. <-- 1st thread > Thread 0 Interval: 1500 > Thread 1 using cpu 3. <-- 2nd thread > Thread 1 Interval: 2000 > Thread 2 using cpu 4. <-- 3rd thread > Thread 2 Interval: 2500 > Thread 3 using cpu 5. <-- 4th thread > Thread 3 Interval: 3000 > Thread 4 using cpu 0. <-- 5th thread > Thread 4 Interval: 3500 > [...] > > Signed-off-by: Eder Zulian <ezulian@redhat.com> > --- > src/cyclictest/cyclictest.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/src/cyclictest/cyclictest.c b/src/cyclictest/cyclictest.c > index c5c3389..f3ab836 100644 > --- a/src/cyclictest/cyclictest.c > +++ b/src/cyclictest/cyclictest.c > @@ -769,9 +769,9 @@ static void display_help(int error) > "-a [CPUSET] --affinity Run thread #N on processor #N, if possible, or if CPUSET\n" > " given, pin threads to that set of processors in round-\n" > " robin order. E.g. -a 2 pins all threads to CPU 2,\n" > - " but -a 3-5,0 -t 5 will run the first and fifth\n" > - " threads on CPU (0),thread #2 on CPU 3, thread #3\n" > - " on CPU 4, and thread #5 on CPU 5.\n" > + " but -a 3-5,0 -t 5 will run the first and fifth threads\n" > + " on CPU 0, the second thread on CPU 3, the third thread\n" > + " on CPU 4, and the fourth thread on CPU 5.\n" > "-A USEC --aligned=USEC align thread wakeups to a specific offset\n" > "-b USEC --breaktrace=USEC send break trace command when latency > USEC\n" > "-c CLOCK --clock=CLOCK select clock\n" > -- Signed-off-by: John Kacur <jkacur@redhat.com>
diff --git a/src/cyclictest/cyclictest.c b/src/cyclictest/cyclictest.c index c5c3389..f3ab836 100644 --- a/src/cyclictest/cyclictest.c +++ b/src/cyclictest/cyclictest.c @@ -769,9 +769,9 @@ static void display_help(int error) "-a [CPUSET] --affinity Run thread #N on processor #N, if possible, or if CPUSET\n" " given, pin threads to that set of processors in round-\n" " robin order. E.g. -a 2 pins all threads to CPU 2,\n" - " but -a 3-5,0 -t 5 will run the first and fifth\n" - " threads on CPU (0),thread #2 on CPU 3, thread #3\n" - " on CPU 4, and thread #5 on CPU 5.\n" + " but -a 3-5,0 -t 5 will run the first and fifth threads\n" + " on CPU 0, the second thread on CPU 3, the third thread\n" + " on CPU 4, and the fourth thread on CPU 5.\n" "-A USEC --aligned=USEC align thread wakeups to a specific offset\n" "-b USEC --breaktrace=USEC send break trace command when latency > USEC\n" "-c CLOCK --clock=CLOCK select clock\n"
Fix the help text for '-a' or '--affinity' option. Tested with the following command (output editted to indicate thread ranking, i.e., Thread 0 is the 1st thread, Thread 1 is the 2nd thread, and so on): # cyclictest -t -a3-5,0 -t 5 -D1 -v [...] Thread 0 using cpu 0. <-- 1st thread Thread 0 Interval: 1500 Thread 1 using cpu 3. <-- 2nd thread Thread 1 Interval: 2000 Thread 2 using cpu 4. <-- 3rd thread Thread 2 Interval: 2500 Thread 3 using cpu 5. <-- 4th thread Thread 3 Interval: 3000 Thread 4 using cpu 0. <-- 5th thread Thread 4 Interval: 3500 [...] Signed-off-by: Eder Zulian <ezulian@redhat.com> --- src/cyclictest/cyclictest.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)