Messages in this thread | | | From | "Paul Rolland" <> | Subject | Re: PREEMPT_RT and I-PIPE: the numbers, part 4 | Date | Sat, 9 Jul 2005 11:01:24 +0200 |
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Hello,
> "IRQ & hd" run: > Measurements | Vanilla | preempt_rt | ipipe > ---------------+-------------+----------------+------------- > fork | 101us | 94us (-7%) | 103us (+2%) > open/close | 2.9us | 2.9us (~) | 3.0us (+3%) > execve | 366us | 370us (+1%) | 372us (+2%) > select 500fd | 14.3us | 18.1us (+27%) | 14.5us (+1%) > mmap | 794us | 654us (+18%) | 822us (+4%)
^^^^^^^^^^^^ You mean -18%, not +18% I think.
Just having a quick long at the numbers, it seems that now the "weak" part in PREEMPT_RT is the select 500fd test.
Ingo, any idea about this one ?
Regards, Paul
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