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
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:
create sparse vm image file of 500TB on ssd with XFS on it
xfs_io -f -c truncate 500t -c extsize 1m /path/to/vm/image/file
Thank for the
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
On Fri, Aug 15, 2014 at 01:58:09PM -0400, Waiman Long wrote:
On 08/14/2014 11:34 PM, Dave Chinner wrote:
create sparse vm image file of 500TB on ssd with XFS on it
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
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
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 fit
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
On 08/14/2014 11:34 PM, Dave Chinner wrote:
create sparse vm image file of 500TB on ssd with XFS on it
xfs_io -f -c truncate 500t -c extsize 1m /path/to/vm/image/file
start 16p/16GB RAM vm with image file configured as:
-drive file=/path/to/vm/image/file,if=virtio,cache=none
In vm:
download
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
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_owner()
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 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.
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. That is
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
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
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
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
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
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
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 owner
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 owner
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