Hi Mathieu Desnoyers and all LTTng developers, This is Hongbo Zhang, working for Linaro. We have to enable the NO-HZ feature for some special case, and this leads to the question whether the LTTng can work without kernel ticks on ARM or not.
I found out some clue that LTTng only supports x86 NO-HZ in an old link: http://git.lttng.org/?p=lttv.git;a=blob_plain;f=doc/developer/lttng-lttv-roadmap.html I think the the LTTng doesn't support ARM NO-HZ, right? And I am going to add the ARM NO-HZ support to it now, so could you please give me some instructions for quick start? 1. Which part of LTTng relies on kernel ticks? currently I only find the ring-bugger by "grep NO*HZ -i -r" command. 2. How does this part(ring-buffer and maybe others) relies on kernel ticks? can you give some explanations or do you have any document of it/them? I will look through the codes, but I think some clear explanations can make me go to the right way and speed up before reading so many codes without any dedicated target. Thanks.
_______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
