Am 15.03.2019 um 16:33 hat Sergio Lopez geschrieben:
>
> Stefan Hajnoczi writes:
>
> > On Thu, Mar 14, 2019 at 06:31:34PM +0100, Sergio Lopez wrote:
> >> Our current AIO path does a great job at unloading the work from the VM,
> >> and combined with IOThreads provides a good performance in most
>
Stefan Hajnoczi writes:
> On Thu, Mar 14, 2019 at 06:31:34PM +0100, Sergio Lopez wrote:
>> Our current AIO path does a great job at unloading the work from the VM,
>> and combined with IOThreads provides a good performance in most
>> scenarios. But it also comes with its costs, in both a longer
Am 15.03.2019 um 15:04 hat Zhengui li geschrieben:
> Concurrent IO becomes serial IO because of the qemu Coroutine lock,
> which reduce IO performance severely.
>
> So unlock Coroutine lock before bdrv_co_pwritev and
> bdrv_co_preadv to fix it.
>
> Signed-off-by: Zhengui li
Thanks, applied to t
On 15/03/19 15:04, Zhengui li wrote:
> Concurrent IO becomes serial IO because of the qemu Coroutine lock,
> which reduce IO performance severely.
>
> So unlock Coroutine lock before bdrv_co_pwritev and
> bdrv_co_preadv to fix it.
>
> Signed-off-by: Zhengui li
> ---
> block/vpc.c | 4
> 1
On Thu, Mar 14, 2019 at 06:31:34PM +0100, Sergio Lopez wrote:
> Our current AIO path does a great job at unloading the work from the VM,
> and combined with IOThreads provides a good performance in most
> scenarios. But it also comes with its costs, in both a longer execution
> path and the need of
Kevin Wolf writes:
> Coverity doesn't like that the return value of bdrv_check_update_perm()
> stays unused only in this place (CID 1399710).
>
> Even if checking local_err should be equivalent to checking ret < 0,
> let's switch to using the return value to be more consistent (and in
> case of a
Anthony PERARD writes:
> On Thu, Mar 14, 2019 at 08:04:00PM +0100, Markus Armbruster wrote:
>> Kevin Wolf writes:
>>
>> > Am 13.03.2019 um 18:44 hat Markus Armbruster geschrieben:
>> >> Patch created mechanically by rerunning:
>> >>
>> >> $ spatch --sp-file scripts/coccinelle/qobject.cocci
On Fri, 15 Mar 2019 at 14:27, Kevin Wolf wrote:
>
> Coverity doesn't like that the return value of bdrv_check_update_perm()
> stays unused only in this place (CID 1399710).
>
> Even if checking local_err should be equivalent to checking ret < 0,
> let's switch to using the return value to be more
On Fri 15 Mar 2019 12:18:43 PM CET, Kevin Wolf wrote:
> Coverity doesn't like that the return value of bdrv_check_update_perm()
> stays unused only in this place (CID 1399710).
>
> Even if checking local_err should be equivalent to checking ret < 0,
> let's switch to using the return value to be m
Concurrent IO becomes serial IO because of the qemu Coroutine lock,
which reduce IO performance severely.
So unlock Coroutine lock before bdrv_co_pwritev and
bdrv_co_preadv to fix it.
Signed-off-by: Zhengui li
---
block/vpc.c | 4
1 file changed, 4 insertions(+)
diff --git a/block/vpc.c b
Am 14.03.2019 um 18:06 hat Peter Maydell geschrieben:
> On Fri, 6 Oct 2017 at 17:20, Kevin Wolf wrote:
> >
> > This changes the commit block job to support operation in a graph where
> > there is more than a single active layer that references the top node.
> >
> > This involves inserting the comm
Am 15.03.2019 um 12:46 hat Sergio Lopez geschrieben:
> There are various actions in this test that must be executed
> sequentially, as the result of it depends on the state triggered by the
> previous one.
>
> If the last argument of _send_qemu_cmd() is an empty string, it just
> sends the QMP com
Coverity doesn't like that the return value of bdrv_check_update_perm()
stays unused only in this place (CID 1399710).
Even if checking local_err should be equivalent to checking ret < 0,
let's switch to using the return value to be more consistent (and in
case of a bug somewhere down the call cha
On Thu, Mar 14, 2019 at 08:04:00PM +0100, Markus Armbruster wrote:
> Kevin Wolf writes:
>
> > Am 13.03.2019 um 18:44 hat Markus Armbruster geschrieben:
> >> Patch created mechanically by rerunning:
> >>
> >> $ spatch --sp-file scripts/coccinelle/qobject.cocci \
> >> --macro-file
There are various actions in this test that must be executed
sequentially, as the result of it depends on the state triggered by the
previous one.
If the last argument of _send_qemu_cmd() is an empty string, it just
sends the QMP commands without waiting for an answer. While unlikely, it
may happe
Am 14.03.2019 um 18:27 hat Peter Maydell geschrieben:
> On Tue, 12 Mar 2019 at 17:30, Kevin Wolf wrote:
> >
> > In order to be able to dynamically reopen the file read-only or
> > read-write, depending on the users that are attached, we need to be able
> > to switch to a different file descriptor
On 3/14/19 8:01 PM, Markus Armbruster wrote:
Michal Privoznik writes:
On 3/8/19 2:14 PM, Markus Armbruster wrote:
The previous commit added a way to configure firmware with -blockdev
rather than -drive if=pflash. Document it as the preferred way.
Signed-off-by: Markus Armbruster
---
doc
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