Timing comparisons for multi-kprobe feature

[Hien Nguyen]

Here's the result on the 4 way 700mhz Pentium 3

(All values in microseconds)

        Vanilla        Single        Multiple
        (2.6.12-rc2)    Interface    Interfaces
------------------------------------------------------------
kprobe        1.155      1.195       1.2
jprobe        1.934      1.987       1.967
kprobe_multi    NA       1.478       1.498

Thanks, Hien.

Ananth N Mavinakayanahalli wrote:

> Hi,
>
> Here is the result of the tests I carried out to determine the cost
> of the multiple-kprobes feature. All tests were carried out on a
> uni PIII running at 732MHz.
>
> I used Will's timing_kprobe and kprobe_multi modules on linux-2.6.12-rc2
> for the tests.
>
> (All values in microseconds)
>
>         Vanilla        Single        Multiple
>         (2.6.12-rc2)    Interface    Interfaces
> ------------------------------------------------------------
> kprobe        1.124        1.149        1.149
> jprobe        1.891        1.885        1.885
> kprobe_multi    NA        1.306        1.387
>
> Note:
> - Single Interface => linux-2.6.12-rc2 + take3 patch
> - Multiple Interfaces => linux-2.6.12-rc2 + take4 patch
> - kprobe_multi => averaged values with Will's kprobe_multi testcase
>
> Thanks,
> Ananth
>