Displaying 5 results from an estimated 5 matches for "sqpoll".
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2020 May 01
3
io_uring cause data corruption
On Fri, May 01, 2020 at 09:27:58PM +0200, A L via samba wrote:
> > Jeremy.
> I did not use a command line, but rather File Explorer
> 1) In File explorer, go to \\SAMBA\share_io_uring\
> 2) Select folder "test2-ro" and choose copy
> 3) Paste to a local drive
>
> The amount of files not working seems to vary, but usually within the 10
> first copied files. You
2020 Apr 27
0
io_uring cause data corruption
...hich by default is set to 128. The readv/writev requests are
queued inside smbd, but the number of outstanding io_uring
requests are set by io_uring_queue_init(vfs_io_uring:num_entries,...).
Can you try changing that value to see if the corruption point
moves ?
There is also a setting vfs_io_uring:sqpoll, currently set
to false. Try flipping that to true to see if it changes
the problem.
2020 May 02
2
io_uring cause data corruption
On Sat, May 02, 2020 at 11:34:41AM +0200, A L wrote:
> ########
> I also tried various combinations of io_uring settings.
>
> io_uring:sqpoll = true/false
> io_uring:num_entries = 2, 4, 8, 64, 128 (default), 256
>
> Between each test i do "echo 3 > /proc/sys/vm/drop_caches" and restart the
> samba service.
>
> One difference I noticed is that there is now only one [io_wqe_worker-0] io
> thread active w...
2020 Apr 27
4
io_uring cause data corruption
On 2020-04-27 18:45, Jeremy Allison via samba wrote:
> On Mon, Apr 27, 2020 at 10:27:17AM +0200, A L via samba wrote:
>> On 2020-04-26 19:46, Jeremy Allison via samba wrote:
>>> On Sun, Apr 26, 2020 at 11:51:42AM +0200, A L via samba wrote:
>>>> * Connected from a Windows 10 computer over 1G ethernet. * Copy
>>>> data using Windows Explorer and
2020 May 02
0
io_uring cause data corruption
...k = Yes
??? vfs objects = io_uring
[share_no_io_uring_ext4]
??? comment = ext4-test no_io_uring
??? path = /mnt/ext4
??? browseable = yes
??? read only = yes
??? guest only = Yes
??? guest ok = Yes
??? vfs objects =
########
I also tried various combinations of io_uring settings.
io_uring:sqpoll = true/false
io_uring:num_entries = 2, 4, 8, 64, 128 (default), 256
Between each test i do "echo 3 > /proc/sys/vm/drop_caches" and restart
the samba service.
One difference I noticed is that there is now only one [io_wqe_worker-0]
io thread active when copying from this USB disk. T...