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Re: [Qemu-devel] 回复： qemu-2.2 using trace event
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] 回复： qemu-2.2 using trace event |
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Date: |
Fri, 13 Nov 2015 17:32:25 +0800 |
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User-agent: |
Mutt/1.5.23 (2015-06-09) |
On Wed, Nov 11, 2015 at 05:18:56PM +0800, 浩樊啊 wrote:
> Hi, I can use trace-event now , but i still don't know what the second list
> stands for?
> is it a execution time of a function?
If you are using the "simple" trace backend then the second column
contains the time delta (in microseconds) since the previous trace
event.
For example:
a 0 ...
b 1000 ...
Event 'b' occurred 1 millisecond after 'a'.
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