From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: Blue Swirl <blauwirbel@gmail.com>,
Artyom Tarasenko <atar4qemu@googlemail.com>
Subject: Re: [Qemu-devel] irq latency and tcg
Date: Mon, 7 Dec 2009 15:06:02 +0000 [thread overview]
Message-ID: <200912071506.02310.paul@codesourcery.com> (raw)
In-Reply-To: <fb8d4f70912070530x34cee9a2m190373c39162e048@mail.gmail.com>
On Monday 07 December 2009, Artyom Tarasenko wrote:
> Can it be that qemu (-system-sparc in my case, but I guess it's more
> or less similar on all platforms) reacts to irqs slower than a real
> hardware due to tcg optimizations?
Interrupts generally only trigger at branch instructions, or similar.
Using -icount should give you precise interrupt delivery.
Paul
next prev parent reply other threads:[~2009-12-07 15:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-07 13:30 [Qemu-devel] irq latency and tcg Artyom Tarasenko
2009-12-07 15:06 ` Paul Brook [this message]
2009-12-07 17:39 ` Artyom Tarasenko
2009-12-07 17:44 ` Paul Brook
2009-12-07 18:08 ` [Qemu-devel] " Blue Swirl
2009-12-09 12:30 ` Artyom Tarasenko
2009-12-12 8:46 ` Blue Swirl
2009-12-12 23:29 ` Paul Brook
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