Messages in this thread | | | Date | Tue, 19 Sep 2006 13:08:25 +0100 | From | Christoph Hellwig <> | Subject | Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108 |
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On Thu, Sep 14, 2006 at 01:55:44PM -0700, Martin Bligh wrote: > 1. They're harder to maintain out of tree. > 2. they're written in some jibberish awk crap > 3. They're slower. If you're doing thousands of tracepoints a second, > into a circular 8GB log buffer, that *does* matter. You want > to peturb what you're measuring as little as possible.
agreed to all these and I'd like to add:
4. If you merge proper dynamic tracing infrastructure you get static traces for free. It's just a bunch of macros directly calling the trace function also used by the dynamic tracing code, maybe keyed of an enable variable.
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