On Wed, Jul 26, 2023 at 08:34:37AM +, Tage Johansson wrote:
>
> On 7/25/2023 8:03 PM, Stefan Hajnoczi wrote:
> > On Mon, Jul 24, 2023 at 09:04:15PM +0100, Richard W.M. Jones wrote:
> > > On Mon, Jul 24, 2023 at 03:22:56PM -0400, Stefan Hajnoczi wrote:
> > > &
On Tue, Jul 25, 2023 at 06:46:06AM +, Tage Johansson wrote:
>
> On 7/24/2023 9:22 PM, Stefan Hajnoczi wrote:
> > On Fri, Jul 21, 2023 at 11:37:09AM +0100, Richard W.M. Jones wrote:
> > > On Fri, Jul 21, 2023 at 10:13:02AM +, Tage Johansson wrote:
> > > >
On Mon, Jul 24, 2023 at 09:04:15PM +0100, Richard W.M. Jones wrote:
> On Mon, Jul 24, 2023 at 03:22:56PM -0400, Stefan Hajnoczi wrote:
> > On Fri, Jul 21, 2023 at 11:37:09AM +0100, Richard W.M. Jones wrote:
> > > On Fri, Jul 21, 2023 at 10:13:02AM +, Tage Johansson wrote:
>
On Fri, Jul 21, 2023 at 11:37:09AM +0100, Richard W.M. Jones wrote:
> On Fri, Jul 21, 2023 at 10:13:02AM +, Tage Johansson wrote:
> >
> > On 7/19/2023 4:35 PM, Richard W.M. Jones wrote:
> > >On Wed, Jul 19, 2023 at 09:09:48AM +, Tage Johansson wrote:
> > >>Add a new field `cbkind` to the `
> > >>On Wed, Jan 11, 2023 at 11:34:50AM -0500, Stefan Hajnoczi wrote:
> > >>>On Sat, Jan 07, 2023 at 07:44:37PM +, Richard W.M. Jones wrote:
> > >>>>
> > >>>> This is upstream in nbdkit now:
> > >>&g
On Sat, Jan 07, 2023 at 07:44:37PM +, Richard W.M. Jones wrote:
>
> This is upstream in nbdkit now:
> https://gitlab.com/nbdkit/nbdkit/-/tree/master/plugins/blkio
>
> Another question:
>
> (6) vhost-user + "read-only" property acts a bit strangely. After
> opening virtio-blk-vhost-user it t
On Wed, Jan 04, 2023 at 09:43:57PM +, Richard W.M. Jones wrote:
> On Wed, Jan 04, 2023 at 06:14:34PM +, Richard W.M. Jones wrote:
> > (3) It seems like some drivers require pre-allocated memory regions,
> > and since some do that means we might as well implement this. It
> > also seems lik
On Wed, Jan 04, 2023 at 07:01:24PM +, Richard W.M. Jones wrote:
> (5) "The application is responsible for thread-safety. No thread
> synchronization is necessary when a queue is only used from a single
> thread. Proper synchronization is required when sharing a queue
> between multiple threads.
On Wed, Jan 04, 2023 at 06:14:34PM +, Richard W.M. Jones wrote:
> This is an incomplete outline implementation for a libblkio plugin for
> nbdkit. At the moment it only supports reading the same ("capacity")
> of the device, and not even reading or writing. I have some questions
> about the l
On Tue, Mar 30, 2021 at 06:05:57PM +0100, Richard W.M. Jones wrote:
> [Adding Stefan: Have we retro-fitted io_uring into any other libraries?]
Not that I'm aware of. You could check Fedora or another Linux distro's
packages to find what depends on liburing and then investigate those
packages.
Ste
On Thu, Nov 16, 2017 at 06:00:54PM +, Richard W.M. Jones wrote:
> On Thu, Nov 16, 2017 at 05:30:48PM +0000, Stefan Hajnoczi wrote:
> > On Thu, Nov 16, 2017 at 3:10 PM, Richard W.M. Jones
> > wrote:
> > > Both local filesystems, but on different SATA devices.
> >
On Thu, Nov 16, 2017 at 3:10 PM, Richard W.M. Jones wrote:
> On Thu, Nov 16, 2017 at 02:47:46PM +0000, Stefan Hajnoczi wrote:
>> The threads you observed are the thread pool that performs
>> preadv(2)/pwritev(2) syscalls. The Linux AIO API could be used instead
>> and doe
On Thu, Nov 16, 2017 at 3:12 PM, Richard W.M. Jones wrote:
> On Thu, Nov 16, 2017 at 03:51:29PM +0100, Peter Lieven wrote:
>> Afaik all writes to the same QCOW2 serialize because of the s->lock that
>> is held during the write. So its not suprising that there is no benefit from
>> mutliple threads
On Wed, Nov 15, 2017 at 11:52:46AM +, Richard W.M. Jones wrote:
> [CC to qemu-devel since I'm obviously doing something wrong here,
> I'm just not sure what.]
>
> I was getting ready to add multiple threads to ‘qemu-img convert’ (the
> longest part of v2v conversions) when I noticed that it ha
On Fri, Mar 27, 2015 at 03:35:02PM +, Richard W.M. Jones wrote:
> On Fri, Mar 27, 2015 at 03:21:25PM +0000, Stefan Hajnoczi wrote:
> > On Fri, Mar 27, 2015 at 12:31:41PM +, Richard W.M. Jones wrote:
> > > On Fri, Mar 27, 2015 at 12:15:34PM +0000, Stefan Hajnoczi wrote:
&
On Fri, Mar 27, 2015 at 12:31:41PM +, Richard W.M. Jones wrote:
> On Fri, Mar 27, 2015 at 12:15:34PM +0000, Stefan Hajnoczi wrote:
> > On Thu, Mar 26, 2015 at 12:02:27AM +0100, Kashyap Chamarthy wrote:
> > > So, something like?
> > >
> > > . .
On Thu, Mar 26, 2015 at 12:02:27AM +0100, Kashyap Chamarthy wrote:
> [Added Stefan Hajnoczi, who wrote the 'drive-backup' QMP command and
> Eric Blake.]
>
> On Wed, Mar 25, 2015 at 07:41:23PM +, Richard W.M. Jones wrote:
> > On Wed, Mar 25, 2015 at 07:38:03PM +0
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