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 >