----- UrsprÃngliche Mail -----
> Von: "Dave Chinner" <david@xxxxxxxxxxxxx>
> An: "Thomas Klaube" <thomas@xxxxxxxxxx>
> CC: xfs@xxxxxxxxxxx
> Gesendet: Mittwoch, 20. August 2014 00:55:07
> Betreff: Re: xlog_write: reservation ran out. Need to up reservation
> Can you post the fio job configuration?
first I run this job for 600 sec:
wtk@ubuntu ~ $ cat write.fio
Then I run this job for 2hours:
wtk@ubuntu ~ $ cat random.fio
I run this workload on 2 devices in parallel. One is the bcache device (with
xfs), the other is
a non cached device. The random.fio job causes the problem on the bcache device
I have sent a mail with all collected data to Dave.
> Run the workload directly on the SSD rather than with bcache. Use
> mkfs parameters to give you 8 ags and the same size log, and see
> if you get the same problem.
I created a xfs direclty on the SSD:
mkfs.xfs -f -d agcount=8 -l size=521728b /dev/sdc1
Then I started tho fio jobs as described above for 10 hours. I could not
problem. I will send a mail to the bcache mailing list as well...
Thanx and Regards