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| From: | Paolo Bonzini |
| Subject: | Re: [Qemu-devel] [regression] dataplane: throughout -40% by commit 580b6b2aa2 |
| Date: | Fri, 27 Jun 2014 23:51:37 +0200 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 |
Il 27/06/2014 20:01, Ming Lei ha scritto:
I just implemented plug&unplug based batching, and it is working now. But throughout still has no obvious improvement. Looks loading in IOthread is a bit low, so I am wondering if there is block point caused by Qemu QEMU block layer.
What does perf say? Also, you can try using the QEMU trace subsystem and see where the latency goes.
Paolo
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