From: "Vladimir N. Oleynik" <dzo@simtreas.ru>
To: fabrice@bellard.org, qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: AIO ide patch
Date: Fri, 28 May 2004 20:10:09 +0400 [thread overview]
Message-ID: <40B76461.1030603@simtreas.ru> (raw)
Fabrice,
>> I have tried to make a variant with asynchronous input/output
>> for ide. First worked patch attached.
>> (this variant haven`t AIO for ATAPI, only ATA).
>> May be not full right, but ...
>> Good news: with this second variant patch installation w2k is full true
>> and don`t make disk full!
>> From second variant I moved set_irq() to thread.
>> But, I don`t know: this save or not, but all my test cleans.
> The disk dull problem is timing dependent.
Yes.
> Your patches change
> the timings, but there is no proof they really fixed the bug.
I can`t patch W2k ;-)
> Of course it is possible that Win2K has a bug which makes
> the IDE driver timing dependent...
My idea is not patch timing. My idea is async IO for make speed up
(guest CPU continued after host`s disk/network/sound make IO processing).
If set_pic_irq() is tread safe, I can generate more other async IO
(floppy, DMA, sound, network fd poll)...
--w
vodz
next reply other threads:[~2004-05-29 3:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-28 16:10 Vladimir N. Oleynik [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-05-25 16:32 [Qemu-devel] AIO ide patch Vladimir N. Oleynik
2004-05-26 11:03 ` [Qemu-devel] " Vladimir N. Oleynik
2004-05-26 14:39 ` Hetz Ben Hamo
2004-05-26 14:09 ` Vladimir N. Oleynik
2004-05-30 14:30 ` Hetz Ben Hamo
2004-05-31 6:39 ` Vladimir N. Oleynik
2004-05-26 20:03 ` Fabrice Bellard
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