On 08/17/2014 07:41 PM, Dave Chinner wrote:
On Fri, Aug 15, 2014 at 01:58:09PM -0400, Waiman Long wrote:
On 08/14/2014 11:34 PM, Dave Chinner wrote:
xfs_io -f -c "truncate 500t" -c "extsize 1m" /path/to/vm/image/file
Thank for the testing recipe. I am afraid that I can't find a 500TB
SS
On Fri, Aug 15, 2014 at 01:58:09PM -0400, Waiman Long wrote:
> On 08/14/2014 11:34 PM, Dave Chinner wrote:
> >
> >
> >xfs_io -f -c "truncate 500t" -c "extsize 1m" /path/to/vm/image/file
>
> Thank for the testing recipe. I am afraid that I can't find a 500TB
> SSD for testing purpose.
Which b
On Fri, 2014-08-15 at 13:58 -0400, Waiman Long wrote:
> Thank for the testing recipe. I am afraid that I can't find a 500TB SSD
> for testing purpose. Do you think the test will still be valid for
> exercising rwsem if I use a smaller SSD or maybe mechanical hard disk?
I suspect fs_mark will fi
On 08/14/2014 11:34 PM, Dave Chinner wrote:
xfs_io -f -c "truncate 500t" -c "extsize 1m" /path/to/vm/image/file
In vm:
download and build fsmark from here:
git://oss.sgi.com/dgc/fs_mark
download and install xfsprogs v3.2.1 from here:
git://oss.sgi.com/xfs/cmds/xfsprogs.git tags/v3.2.1
S
On Wed, Aug 13, 2014 at 12:41:06PM -0400, Waiman Long wrote:
> On 08/13/2014 01:51 AM, Dave Chinner wrote:
> >On Mon, Aug 04, 2014 at 11:44:19AM -0400, Waiman Long wrote:
> >>On 08/04/2014 12:10 AM, Jason Low wrote:
> >>>On Sun, 2014-08-03 at 22:36 -0400, Waiman Long wrote:
> The rwsem_can_spin
On 08/13/2014 01:51 AM, Dave Chinner wrote:
On Mon, Aug 04, 2014 at 11:44:19AM -0400, Waiman Long wrote:
On 08/04/2014 12:10 AM, Jason Low wrote:
On Sun, 2014-08-03 at 22:36 -0400, Waiman Long wrote:
The rwsem_can_spin_on_owner() function currently allows optimistic
spinning only if the owner
On Mon, Aug 04, 2014 at 11:44:19AM -0400, Waiman Long wrote:
> On 08/04/2014 12:10 AM, Jason Low wrote:
> >On Sun, 2014-08-03 at 22:36 -0400, Waiman Long wrote:
> >>The rwsem_can_spin_on_owner() function currently allows optimistic
> >>spinning only if the owner field is defined and is running. Tha
On 08/04/2014 12:10 AM, Jason Low wrote:
On Sun, 2014-08-03 at 22:36 -0400, Waiman Long wrote:
The rwsem_can_spin_on_owner() function currently allows optimistic
spinning only if the owner field is defined and is running. That is
too conservative as it will cause some tasks to miss the opportuni
On Sun, 2014-08-03 at 22:36 -0400, Waiman Long wrote:
> The rwsem_can_spin_on_owner() function currently allows optimistic
> spinning only if the owner field is defined and is running. That is
> too conservative as it will cause some tasks to miss the opportunity
> of doing spinning in case the own
On Sun, 2014-08-03 at 22:36 -0400, Waiman Long wrote:
> The rwsem_can_spin_on_owner() function currently allows optimistic
> spinning only if the owner field is defined and is running. That is
> too conservative as it will cause some tasks to miss the opportunity
> of doing spinning in case the own
The rwsem_can_spin_on_owner() function currently allows optimistic
spinning only if the owner field is defined and is running. That is
too conservative as it will cause some tasks to miss the opportunity
of doing spinning in case the owner hasn't been able to set the owner
field in time or the lock
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