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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=200912071506.02310.paul@codesourcery.com \
--to=paul@codesourcery.com \
--cc=atar4qemu@googlemail.com \
--cc=blauwirbel@gmail.com \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.