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Re: Some newbie questions

On 08/17/2016 10:15 AM, Avi Kivity wrote:

... stuff deleted ...

> My load indeed calls epoll_wait() at a high rate, with zero timeout. 
> But now it's completely dominated by tracing overhead.

I'm not sure how much it will help, but one easy fix would be to replace
all your '[pid(), tid()]' array indexing with just '[tid()]' array indexing.

Try changing that and see if the tracing overhead goes down a bit.

-- 
David Smith
dsmith@redhat.com
Red Hat
http://www.redhat.com
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