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From: Petr Vorel <pvorel@suse.cz>
To: ltp@lists.linux.it
Subject: [LTP] sched_rr_get_interval01 depends on particular CONFIG_HZ value
Date: Tue, 18 Jul 2023 13:40:27 +0200	[thread overview]
Message-ID: <20230718114027.GA1172148@pevik> (raw)

Hi,

sched_rr_get_interval01.c depends on particular CONFIG_HZ value.
Recent change in openSUSE kernel from the default 250 to 300 breaks it:

sched_rr_get_interval01.c:57: TPASS: sched_rr_get_interval() passed
sched_rr_get_interval01.c:64: TPASS: Time quantum 0s 99999990ns
sched_rr_get_interval01.c:72: TFAIL: /proc/sys/kernel/sched_rr_timeslice_ms != 100 got 90
sched_rr_get_interval01.c:57: TPASS: sched_rr_get_interval() passed
sched_rr_get_interval01.c:64: TPASS: Time quantum 0s 99999990ns
sched_rr_get_interval01.c:72: TFAIL: /proc/sys/kernel/sched_rr_timeslice_ms != 100 got 90

According to kernel/Kconfig.hz CONFIG_HZ can have various values (100, 250, 300,
1000). Should we adapt the test to expect any of these? Or should we require
kernel config to read CONFIG_HZ value and check for correct value?

Kind regards,
Petr

-- 
Mailing list info: https://lists.linux.it/listinfo/ltp

             reply	other threads:[~2023-07-18 11:40 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-18 11:40 Petr Vorel [this message]
2023-07-18 13:48 ` [LTP] sched_rr_get_interval01 depends on particular CONFIG_HZ value Cyril Hrubis
2023-07-18 14:04   ` Cyril Hrubis
2023-07-18 14:37     ` Cyril Hrubis
2023-07-19  9:28       ` Jiri Bohac

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