From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: Re: [Qemu-devel] Re: Qemu 2D performance plunges below acceptable levels
Date: Fri, 20 Feb 2009 16:52:54 +0000 [thread overview]
Message-ID: <200902201652.55386.paul@codesourcery.com> (raw)
In-Reply-To: <499EDC54.3020508@eu.citrix.com>
> SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
> - SDL_UpdateRect(real_screen, x, y, w, h);
> + SDL_UpdateRects(real_screen, 1, &rec);
Have you actually tried this? I'd be amazed and dismayed if it made any
difference. I can believe that SDL_UpdateRects is better that *multiple*
calls to SDL_UpdateRect. However I see absolutely no justification for this
change.
Paul
next prev parent reply other threads:[~2009-02-20 16:53 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-15 13:10 [Qemu-devel] Qemu 2D performance plunges below acceptable levels Alexey Eremenko
2009-02-15 17:11 ` [Qemu-devel] " Alexey Eremenko
2009-02-16 10:31 ` Stefano Stabellini
2009-02-16 11:47 ` Avi Kivity
2009-02-16 16:15 ` Stefano Stabellini
2009-02-16 16:36 ` Avi Kivity
2009-02-17 17:48 ` Avi Kivity
2009-02-17 19:00 ` Stefano Stabellini
2009-02-18 8:46 ` Alexey Eremenko
2009-02-18 9:33 ` malc
2009-02-18 10:48 ` Stefano Stabellini
2009-02-18 11:17 ` malc
2009-02-18 11:27 ` Alexey Eremenko
2009-02-18 11:32 ` malc
2009-02-18 12:12 ` Stefano Stabellini
2009-02-18 18:51 ` malc
2009-02-19 15:14 ` malc
2009-02-20 16:37 ` Stefano Stabellini
2009-02-20 16:52 ` Paul Brook [this message]
2009-02-20 17:01 ` Stefano Stabellini
2009-02-20 17:16 ` Paul Brook
2009-02-21 4:02 ` malc
2009-02-23 3:06 ` Stefano Stabellini
2009-02-23 6:43 ` malc
2009-02-20 17:17 ` Laurent Desnogues
2009-02-18 10:43 ` Stefano Stabellini
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