Re: [PATCH 03/21] Remove use of signalfd in block-raw-posix.c

Avi Kivity
2009-04-30T09:28:31Z

Anthony Liguori wrote:
> We don't use signalfd in upstream QEMU. Instead, we always emulate it.
>

With an extra thread -> so an extra context switch.

> It's not necessarily a bad thing to use signalfd, but this is something that
> should be done upstream. It certainly does qemu-kvm no harm to use the upstream
> code.
>

It will introduce a (likely minor, but real) performance regression.

Instead of this, why not apply the reverse patch to qemu.git?

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error compiling committee.c: too many arguments to function