Re: lttv display questions

* Andy Howell ([email protected]) wrote:
> I'm using linux 2.6.30-rc5, lttv 0.12.14-15052009, and lttctl 0.64-14012009
>
> What is the meaning of the dots about the graph lines for thread in the "Control Flow Viewer"?
>

"more information available if you zoom in"


> When I start up, I see a number of errors like:
>
> ** (lttv.real:24284): WARNING **: No channel for marker named block._blk_request_complete
> found
>

Normal.. the block layer analysis will just not work. It needs an
additionnal patchset from Pierre-Marc. Don't worry about it.

> and
>
> ** (lttv.real:24284): WARNING **: 5521 events lost so far in tracefile /tmp/t2/vm_state_0
> at block 1
>
>
> Is there anything I can do to cut down on the lost events?
>

Yes, I should change the default for the vm_state channel. Can be
tweaked with lttctl -o options. See lttctl --help for details.

But this only matters for (currently unexisting) memory management
analysis, so it should not be a problem for you.

Mathieu

> Thanks,
>
> 	Andy
>
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-- 
Mathieu Desnoyers
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