Searched hist:"684960 d4" (Results 1 – 2 of 2) sorted by relevance
/qemu/block/ |
H A D | file-posix.c | 684960d4 Tue Oct 26 16:23:44 GMT 2021 Stefano Garzarella <sgarzare@redhat.com> file-posix: add `aio-max-batch` option
Commit d7ddd0a161 ("linux-aio: limit the batch size using `aio-max-batch` parameter") added a way to limit the batch size of Linux AIO backend for the entire AIO context.
The same AIO context can be shared by multiple devices, so latency-sensitive devices may want to limit the batch size even more to avoid increasing latency.
For this reason we add the `aio-max-batch` option to the file backend, which will be used by the next commits to limit the size of batches including requests generated by this device.
Suggested-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Message-Id: <20211026162346.253081-2-sgarzare@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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/qemu/qapi/ |
H A D | block-core.json | 684960d4 Tue Oct 26 16:23:44 GMT 2021 Stefano Garzarella <sgarzare@redhat.com> file-posix: add `aio-max-batch` option
Commit d7ddd0a161 ("linux-aio: limit the batch size using `aio-max-batch` parameter") added a way to limit the batch size of Linux AIO backend for the entire AIO context.
The same AIO context can be shared by multiple devices, so latency-sensitive devices may want to limit the batch size even more to avoid increasing latency.
For this reason we add the `aio-max-batch` option to the file backend, which will be used by the next commits to limit the size of batches including requests generated by this device.
Suggested-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Message-Id: <20211026162346.253081-2-sgarzare@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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