On 19.06.21 12:20, Vladimir Sementsov-Ogievskiy wrote:
17.06.2021 18:52, Max Reitz wrote:
As we have attempted before
(https://lists.gnu.org/archive/html/qemu-devel/2019-01/msg06451.html,
"file-posix: Cache lseek result for data regions";
On 18.06.21 20:51, Eric Blake wrote:
On Thu, Jun 17, 2021 at 05:52:43PM +0200, Max Reitz wrote:
To address this, we want to cache data regions. Most of the time, when
bad performance is reported, it is in places where the image is iterated
over from start to end (qemu-img convert or the mirror
17.06.2021 18:52, Max Reitz wrote:
As we have attempted before
(https://lists.gnu.org/archive/html/qemu-devel/2019-01/msg06451.html,
"file-posix: Cache lseek result for data regions";
https://lists.nongnu.org/archive/html/qemu-block/2021-02/msg00934.html,
"file-posix: Cache next hole"), this
On Thu, Jun 17, 2021 at 05:52:43PM +0200, Max Reitz wrote:
>
> To address this, we want to cache data regions. Most of the time, when
> bad performance is reported, it is in places where the image is iterated
> over from start to end (qemu-img convert or the mirror job), so a simple
> yet
As we have attempted before
(https://lists.gnu.org/archive/html/qemu-devel/2019-01/msg06451.html,
"file-posix: Cache lseek result for data regions";
https://lists.nongnu.org/archive/html/qemu-block/2021-02/msg00934.html,
"file-posix: Cache next hole"), this patch seeks to reduce the number of
