[ltt-dev] performance results I measured with the latest lttng patches

Jan Blunck jblunck at suse.de
Wed Sep 24 03:25:03 EDT 2008


On Tue, Sep 23, Jiaying Zhang wrote:

> Hi Mathieu,
> 
> I synced my 2.6.26 lttng code with the latest 0.21 lttng patches
> and re-ran the same tbench test. Here are the new results I collected:
> 
> lttng-compiled-in, all markers disabled: Throughput 743.931 MB/sec
> lttng-compiled-in, default markers enabled, taking an active trace in normal
> mode: Throughput 500.24 MB/sec

Isn't lttng-compile-out missing here? Or did you ran the same base kernel?

> Compared with the old kernel results:
> lttng-compiled-out: Throughput 761.508 MB/sec
> lttng-compiled-in, all markers disabled: Throughput 722.983 MB/sec
> lttng-compiled-in, default markers enabled, taking an active trace in normal
> mode: Throughput 636.569 MB/sec

Regards,
	Jan

-- 
Jan Blunck <jblunck at suse.de>




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