Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-12-13 Thread Michael S. Tsirkin
On Mon, Nov 25, 2019 at 09:16:10AM +, Denis Plotnikov wrote: > > > On 06.11.2019 15:03, Michael S. Tsirkin wrote: > > On Thu, Oct 24, 2019 at 11:34:34AM +, Denis Lunev wrote: > >> On 10/24/19 12:28 AM, Michael S. Tsirkin wrote: > >>> On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis

[PING] [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-12-13 Thread Denis Plotnikov
On 05.12.2019 10:59, Denis Plotnikov wrote: > Ping! > > On 25.11.2019 12:16, Denis Plotnikov wrote: >> >> >> On 06.11.2019 15:03, Michael S. Tsirkin wrote: >>> On Thu, Oct 24, 2019 at 11:34:34AM +, Denis Lunev wrote: On 10/24/19 12:28 AM, Michael S. Tsirkin wrote: > On Fri, Oct 18,

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-12-05 Thread Denis Plotnikov
Ping! On 25.11.2019 12:16, Denis Plotnikov wrote: > > > On 06.11.2019 15:03, Michael S. Tsirkin wrote: >> On Thu, Oct 24, 2019 at 11:34:34AM +, Denis Lunev wrote: >>> On 10/24/19 12:28 AM, Michael S. Tsirkin wrote: On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: >

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-11-25 Thread Denis Plotnikov
On 06.11.2019 15:03, Michael S. Tsirkin wrote: > On Thu, Oct 24, 2019 at 11:34:34AM +, Denis Lunev wrote: >> On 10/24/19 12:28 AM, Michael S. Tsirkin wrote: >>> On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: From: "Denis V. Lunev" Linux guests submit IO

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-11-14 Thread Denis Plotnikov
On 13.11.2019 16:18, Michael S. Tsirkin wrote: > On Wed, Nov 13, 2019 at 12:38:48PM +, Denis Plotnikov wrote: >> >> On 06.11.2019 15:03, Michael S. Tsirkin wrote: >>> On Thu, Oct 24, 2019 at 11:34:34AM +, Denis Lunev wrote: On 10/24/19 12:28 AM, Michael S. Tsirkin wrote: > On

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-11-13 Thread Michael S. Tsirkin
On Wed, Nov 13, 2019 at 12:38:48PM +, Denis Plotnikov wrote: > > > On 06.11.2019 15:03, Michael S. Tsirkin wrote: > > On Thu, Oct 24, 2019 at 11:34:34AM +, Denis Lunev wrote: > >> On 10/24/19 12:28 AM, Michael S. Tsirkin wrote: > >>> On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-11-13 Thread Denis Plotnikov
On 06.11.2019 15:03, Michael S. Tsirkin wrote: > On Thu, Oct 24, 2019 at 11:34:34AM +, Denis Lunev wrote: >> On 10/24/19 12:28 AM, Michael S. Tsirkin wrote: >>> On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: From: "Denis V. Lunev" Linux guests submit IO

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-11-12 Thread Stefan Hajnoczi
On Wed, Oct 23, 2019 at 05:28:17PM -0400, Michael S. Tsirkin wrote: > On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: > > From: "Denis V. Lunev" > > > > Linux guests submit IO requests no longer than PAGE_SIZE * max_seg > > field reported by SCSI controler. Thus typical

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-11-06 Thread Michael S. Tsirkin
On Thu, Oct 24, 2019 at 11:34:34AM +, Denis Lunev wrote: > On 10/24/19 12:28 AM, Michael S. Tsirkin wrote: > > On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: > >> From: "Denis V. Lunev" > >> > >> Linux guests submit IO requests no longer than PAGE_SIZE * max_seg > >> field

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-10-24 Thread Denis Lunev
On 10/24/19 12:28 AM, Michael S. Tsirkin wrote: > On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: >> From: "Denis V. Lunev" >> >> Linux guests submit IO requests no longer than PAGE_SIZE * max_seg >> field reported by SCSI controler. Thus typical sequential read with >> 1 MB size

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-10-23 Thread Michael S. Tsirkin
On Mon, Oct 21, 2019 at 02:24:55PM +0100, Stefan Hajnoczi wrote: > On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: > > From: "Denis V. Lunev" > > > > Linux guests submit IO requests no longer than PAGE_SIZE * max_seg > > field reported by SCSI controler. Thus typical sequential

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-10-23 Thread Michael S. Tsirkin
On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: > From: "Denis V. Lunev" > > Linux guests submit IO requests no longer than PAGE_SIZE * max_seg > field reported by SCSI controler. Thus typical sequential read with > 1 MB size results in the following pattern of the IO from the

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-10-23 Thread Denis Lunev
On 10/23/19 5:17 PM, Stefan Hajnoczi wrote: > On Tue, Oct 22, 2019 at 04:01:57AM +, Denis Lunev wrote: >> On 10/21/19 4:24 PM, Stefan Hajnoczi wrote: >>> On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: From: "Denis V. Lunev" Linux guests submit IO requests no

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-10-23 Thread Stefan Hajnoczi
On Tue, Oct 22, 2019 at 04:01:57AM +, Denis Lunev wrote: > On 10/21/19 4:24 PM, Stefan Hajnoczi wrote: > > On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: > >> From: "Denis V. Lunev" > >> > >> Linux guests submit IO requests no longer than PAGE_SIZE * max_seg > >> field

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-10-23 Thread Denis Plotnikov
On 21.10.2019 16:24, Stefan Hajnoczi wrote: > On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: >> From: "Denis V. Lunev" >> >> Linux guests submit IO requests no longer than PAGE_SIZE * max_seg >> field reported by SCSI controler. Thus typical sequential read with >> 1 MB size

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-10-21 Thread Denis Lunev
On 10/21/19 4:24 PM, Stefan Hajnoczi wrote: > On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: >> From: "Denis V. Lunev" >> >> Linux guests submit IO requests no longer than PAGE_SIZE * max_seg >> field reported by SCSI controler. Thus typical sequential read with >> 1 MB size

Re: [PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-10-21 Thread Stefan Hajnoczi
On Fri, Oct 18, 2019 at 02:55:47PM +0300, Denis Plotnikov wrote: > From: "Denis V. Lunev" > > Linux guests submit IO requests no longer than PAGE_SIZE * max_seg > field reported by SCSI controler. Thus typical sequential read with > 1 MB size results in the following pattern of the IO from the

[PATCH] virtio: fix IO request length in virtio SCSI/block #PSBM-78839

2019-10-18 Thread Denis Plotnikov
From: "Denis V. Lunev" Linux guests submit IO requests no longer than PAGE_SIZE * max_seg field reported by SCSI controler. Thus typical sequential read with 1 MB size results in the following pattern of the IO from the guest: 8,16 115754 2.766095122 2071 D R 2095104 + 1008 [dd]