Messages in this thread | | | Date | Thu, 13 Mar 2008 18:21:42 +0300 | From | Alexey Dobriyan <> | Subject | Not so fair group scheduling |
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Simple testcase:
a) 2 physical CPUs, not HT or something b) root gets 1024 cpu_share according to /sys/kernel/uids/0/cpu-chare c) user gets 1024 cpu_chare --//--
root runs 1 busy loop, user runs 2 busy loops According to top they got 57% for root, and 66+77% for user. But they should have 100%/50+50% division. Am I right?
If yes are there any patches to fix this available for testing?
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