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Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG form
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format |
Date: |
Wed, 14 Mar 2012 12:42:36 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120209 Thunderbird/10.0.1 |
Am 14.03.2012 10:42, schrieb Stefan Hajnoczi:
> On Tue, Mar 13, 2012 at 1:17 PM, Gerd Hoffmann <address@hidden> wrote:
>> Hi,
>>
>>> If you want to do it as part of the QEMU codebase then a thread is
>>> probably the best way - it avoids the troubles of forking a
>>> multithreaded program and letting go of resources (guest memory, file
>>> descriptors) that aren't needed across fork.
>>
>> That pretty much requires async monitor command support though, so the
>> iothread can continue driving guest i/o while the new worker thread
>> scales/compresses/writes the screendump.
>
> The most practical first step would be simply sending the ppm over a
> socket from ppm_save(). The 'screendump' command today already blocks
> so no new badness is being added. There would be no threads or fancy
> image encoding.
Saving PNGs would be useful even without a management tool.
Kevin
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format, (continued)
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format, Marc-André Lureau, 2012/03/13
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format, Stefan Hajnoczi, 2012/03/13
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format, Gerd Hoffmann, 2012/03/13
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format, Stefan Hajnoczi, 2012/03/14
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format, Gerd Hoffmann, 2012/03/14
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format, Stefan Hajnoczi, 2012/03/14
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format, Luiz Capitulino, 2012/03/14
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format, Alon Levy, 2012/03/14
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format, Eric Blake, 2012/03/14
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format, Luiz Capitulino, 2012/03/14
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format,
Kevin Wolf <=
- Re: [Qemu-devel] [PATCH/RFC 0/7] Screendump to UNIX socket & in PNG format, Luiz Capitulino, 2012/03/14