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    SubjectRe: PREEMPT_RT and I-PIPE: the numbers, part 4
    Date
    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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