[Lustre-discuss] review: Lustre client procfs stats

[Richard Henwood]

Thanks for the feedback.

We are going to address our issues with Lustre client procfs stats as follows:

On Tue, May 10, 2011 at 4:14 PM, Richard Henwood <rhenwood at whamcloud.com> wrote:
<snip>
>
> *ENHANCEMENT* stats should declare all metrics that are recorded, even
> if they are zero. Currently tool developers must maintain their own
> lookups of all possible values and test for their absence. Declaring
> all the metrics voids the need to consult source code to identify all
> possible metrics.
>

*RESOLUTION* Update the Manual.

<snip>
> *ENHANCEMENT* read_bytes should return the number of bytes that have
> been read, consistent with the behavior of write_bytes. This will
> avoid confusion for users and give a more accurate measure of the
> traffic over the filesystem.
> Cache misses
>

*RESOLUTION* Assert this behavior is a bug. Create a Jira ticket and
discuss the solution design there.
http://jira.whamcloud.com/browse/LU-333

<snip>
> *ENHANCEMENT* Bytes send over the wire should be explicitly recorded
> in the stats file. This will enable a detailed view of the client and
> network interaction with the filesystem.
>

*RESOLUTION* Assert this is a valuable enhancement. Create a Jira
ticket and discuss the solution design there.
http://jira.whamcloud.com/browse/LU-334



richard,
-- 
Richard.Henwood at whamcloud.com
Whamcloud Inc.
tel: +1 512 410 9612