* Jes Sorensen ([email protected]) wrote:
> Mathieu Desnoyers wrote:
> > The bottom line is :
> >
> > LTTng impact on the studied phenomenon : 35% slower
> >
> > LTTng+kprobes impact on the studied phenomenon : 73% slower
> >
> > Therefore, I conclude that on this type of high event rate workload, kprobes
> > doubles the tracer impact on the system.
>
> For this specific benchmark, for which we have not seen the code, nor
> do we know what system configuration it was run on. Sorry, but even M$'s
> sham benchmarks generally tell you which system they used for their
> tests.
>
> In addition, some profiling would be interesting so we can see exactly
> where things go wrong and fix it. Ingo seems to be doing a good job at
> that even without you providing this basic info....
>
Hi Jes,
I did not repeat my system configuration from the previous email in the thread
as it seemed redundant. Ingo asked me politely to tell more about my config
and tests, which I have done. Please read on further down this thread to get
that information.
Mathieu
OpenPGP public key: http://krystal.dyndns.org:8080/key/compudj.gpg
Key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
