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Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async |
Date: |
Tue, 25 Oct 2011 09:16:59 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.23) Gecko/20110927 Red Hat/3.1.15-1.el6_1 Thunderbird/3.1.15 |
Hi,
> If all you need here is to delay sending the response, then maybe the
> current interface could work (although I honestly don't trust it and
> regret not having dropped it). Otherwise our only choice would be to
> work on getting the QAPI async support merged.
A delayed monitor response is all we need.
The command may take a bit to finish, where "a bit" is in the order of a
few seconds max, usually less than a second. Blocking the monitor for
that amount of time is fine, but blocking the io thread introduces
insane long I/O latencies for the guest (and device emulation).
cheers,
Gerd
- [Qemu-devel] [PATCH 1/5] monitor: screen_dump async, (continued)
- [Qemu-devel] [PATCH 1/5] monitor: screen_dump async, Alon Levy, 2011/10/24
- Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async, Gerd Hoffmann, 2011/10/24
- Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async, Luiz Capitulino, 2011/10/24
- Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async, Alon Levy, 2011/10/24
- Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async, Luiz Capitulino, 2011/10/24
- Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async, Alon Levy, 2011/10/25
- Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async, Luiz Capitulino, 2011/10/25
- Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async, Alon Levy, 2011/10/25
- Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async, Luiz Capitulino, 2011/10/25
- Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async, Alon Levy, 2011/10/26
- Re: [Qemu-devel] [PATCH 1/5] monitor: screen_dump async,
Gerd Hoffmann <=
[Qemu-devel] [PATCH 5/5] qxl: support async monitor screen dump, Alon Levy, 2011/10/24
[Qemu-devel] [PATCH 2/5] qxl: s/__FUNCTION__/__func__/, change logging levels, Alon Levy, 2011/10/24
[Qemu-devel] [PATCH 3/5] qxl: support concurrent async commands, Alon Levy, 2011/10/24