Messages in this thread | | | Date | Mon, 18 Sep 2006 11:01:15 -0400 | From | Mathieu Desnoyers <> | Subject | Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108 |
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* Jes Sorensen (jes@sgi.com) 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
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