From: Keir Fraser <keir@xensource.com>
To: "Zhai, Edwin" <edwin.zhai@intel.com>,
Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk>
Cc: xen-devel@lists.xensource.com
Subject: Re: [PATCH][HVM] remove qemu shadow_vram patch for performance
Date: Thu, 15 Mar 2007 10:50:13 +0000 [thread overview]
Message-ID: <C21ED565.B88C%keir@xensource.com> (raw)
In-Reply-To: <20070315033005.GD12238@edwin-srv.sh.intel.com>
On 15/3/07 03:30, "Zhai, Edwin" <edwin.zhai@intel.com> wrote:
> remove qemu shadow_vram patch and force a whole screen update each time for
> performance.
>
> W/O this patch, there is huge performance drop in HVM domain when adding other
> guest(windows or linux with xwindow).
>
> shadow_vram_revert.patch - revert the shadow_vram patch
> shadow_vram_force_update.patch - explictly redraw screen each time
How can updating the whole screen 30 times a second be faster than the
memcmp() that we do currently?
-- Keir
next prev parent reply other threads:[~2007-03-15 10:50 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-15 3:30 [PATCH][HVM] remove qemu shadow_vram patch for performance Zhai, Edwin
2007-03-15 10:50 ` Keir Fraser [this message]
2007-03-16 3:04 ` Zhai, Edwin
2007-03-20 8:38 ` [PATCH][HVM] remove qemu shadow_vram patch forperformance Li, Xin B
2007-03-20 8:47 ` Keir Fraser
2007-03-20 9:36 ` Li, Xin B
2007-03-20 9:45 ` Keir Fraser
2007-03-20 9:48 ` Li, Xin B
2007-03-21 2:38 ` Zhai, Edwin
2007-03-21 20:50 ` [PATCH][HVM] remove qemu shadow_vram patchforperformance Dong, Eddie
2007-03-22 23:40 ` [PATCH][HVM] remove qemu shadow_vram patch forperformance Christian Limpach
2007-03-23 0:38 ` [PATCH][HVM] remove qemu shadow_vram patchforperformance Dong, Eddie
2007-03-21 21:09 ` [PATCH][HVM] remove qemu shadow_vram patch for performance Anthony Liguori
2007-03-21 21:09 ` Anthony Liguori
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