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Re: [Qemu-devel] QEMU-guestOS latencies.
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] QEMU-guestOS latencies. |
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Date: |
Thu, 11 Aug 2016 10:10:49 +0100 |
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User-agent: |
Mutt/1.6.2 (2016-07-01) |
On Tue, Aug 09, 2016 at 11:45:54AM +0000, Nir Levy wrote:
> I am continuing to learn your simple trace.
> I have used it and seen how it is working.
> the get_clock is saved as 8 octets but is converted via
> ./scripts/simpletrace.py to delta_ns = timestamp - self.last_timestamp
> which result with illogical diff (negative to very large in a split file
> within few seconds)
> it is worth mentioning I am tracing all possible events and maybe it what
> cause problems.
The number of events shouldn't affect the timestamp field since it uses
the simply fetches the get_clock() value.
I'm not sure what you mean by "split file"?
Stefan
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