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Re: [Qemu-devel] [RFC 0/8] arm AioContext with its own timer stuff


From: liu ping fan
Subject: Re: [Qemu-devel] [RFC 0/8] arm AioContext with its own timer stuff
Date: Wed, 24 Jul 2013 16:30:09 +0800

[...]
>> http://social.msdn.microsoft.com/Forums/vstudio/en-US/e8a7cb1e-9edd-4ee3-982e-f66b7bf6ae44/improve-accuracy-waitforsingleobject
>>
>> suggest that WaitFor{Single,Multiple}Objects can have pretty
>> appalling latency anyway (100ms!), and there's no evidence that's
>> limited by making one of the FDs (or objects) ready.
>
> ... especially when making one of the FDs ready would likely have the
> same latency in some internal Windows thread that implements timers.
>
>> In these
>> circumstances, I'd question whether we gain anything by worrying
>> about timer resolution.
>
Does hpet emulation care about it?

> Part of it should be fixed by os_setup_early_signal_handling.
>
> This is corroborated by the fact that without
> os_setup_early_signal_handling Wine always works, and Windows breaks.
>
> Paolo
>



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