Re: [Qemu-devel] [PATCH] qemu-img: make convert async

2017-02-24 Thread Peter Lieven
> Am 24.02.2017 um 16:02 schrieb Kevin Wolf : > > Am 21.02.2017 um 13:29 hat Peter Lieven geschrieben: >> the convert process is currently completely implemented with sync operations. >> That means it reads one buffer and then writes it. No parallelism and each >> sync >> request takes as long a

Re: [Qemu-devel] [PATCH] qemu-img: make convert async

2017-02-24 Thread Kevin Wolf
Am 21.02.2017 um 13:29 hat Peter Lieven geschrieben: > the convert process is currently completely implemented with sync operations. > That means it reads one buffer and then writes it. No parallelism and each > sync > request takes as long as it takes until it is completed. > > This can be a big

Re: [Qemu-devel] [PATCH] qemu-img: make convert async

2017-02-23 Thread Peter Lieven
Am 22.02.2017 um 16:31 schrieb Stefan Hajnoczi: On Tue, Feb 21, 2017 at 01:29:51PM +0100, Peter Lieven wrote: the convert process is currently completely implemented with sync operations. That means it reads one buffer and then writes it. No parallelism and each sync request takes as long as it

Re: [Qemu-devel] [PATCH] qemu-img: make convert async

2017-02-22 Thread Stefan Hajnoczi
On Tue, Feb 21, 2017 at 01:29:51PM +0100, Peter Lieven wrote: > the convert process is currently completely implemented with sync operations. > That means it reads one buffer and then writes it. No parallelism and each > sync > request takes as long as it takes until it is completed. > > This can

Re: [Qemu-devel] [PATCH] qemu-img: make convert async

2017-02-21 Thread no-reply
Hi, This series failed build test on s390x host. Please find the details below. Type: series Subject: [Qemu-devel] [PATCH] qemu-img: make convert async Message-id: 1487680191-13096-1-git-send-email...@kamp.de === TEST SCRIPT BEGIN === #!/bin/bash # Testing script will be invoked under the git

[Qemu-devel] [PATCH] qemu-img: make convert async

2017-02-21 Thread Peter Lieven
the convert process is currently completely implemented with sync operations. That means it reads one buffer and then writes it. No parallelism and each sync request takes as long as it takes until it is completed. This can be a big performance hit when the convert process reads and writes to devi