Re: [PATCH v3 2/3] nfs: Add timecreate to nfs inode

Oliver Sang
2025-06-17T08:49:12Z

hi, Benjamin Coddington,

On Thu, Jun 12, 2025 at 11:32:05AM -0400, Benjamin Coddington wrote:
> On 12 Jun 2025, at 3:22, kernel test robot wrote:
>
> > Hello,
> >
> > kernel test robot noticed a 41.2% regression of stress-ng.msg.ops_per_sec on:
>
> Wow, this is really unexpected here - best I can think is that we're mucking
> up cachelines in a very problematic way, but then NFS would have to be
> involved in the test somehow and I don't see evidence of that.
>
> LKP folks, is there some NFS on the test system that could be in play? I
> see that you collect nfsstat output, but I don't see that output in the
> details. Is it possible this report could be an anomaly?

sorry about this, seems this is a wrong report. there is no NFS involved in this
test, so there is no nfsstat monitor enabled while doing tests.

one possibility is fs/ is build earlier, which impacts the kernel image layout.
we observed the cases that stress-ng tests are sensitive to this kind of
alignment changes.

sorry for the wrong report.

>
> Ben
>