Marek Polacek <pola...@redhat.com> writes: > On Wed, May 17, 2017 at 09:13:40AM -0600, Jeff Law wrote: >> On 05/17/2017 04:23 AM, Aldy Hernandez wrote: >> > Hi folks. >> > >> > I've been having troubles comparing the results of different test runs >> > for quite some time, and have finally decided to whine about it. Perhaps >> > someone can point out to whatever I may be doing wrong. >> > >> > I generally do "make check -k -j60" on two different trees and compare >> Make sure you've got Andi's patch installed and report back. It's >> supposed to help with smaller -j loads, but it's unclear if it's enough >> to address the problems with higher loads like you're using. > > I'm still seeing spurious tree-prof failures there (with -j48).
Do they go away if you run first (as root) echo 5000 > /proc/sys/kernel/perf_event_mlock_kb first? -Andi
