On Thu, Mar 16, 2017 at 11:01:03AM -0300, Arnaldo Carvalho de Melo wrote: > Hi, this entry is failing for a while: > > [root@jouet ~]# perf test -v tsc > 55: Convert perf time to TSC : > --- start --- > test child forked, pid 3008 > mmap size 528384B > 1st event perf time 93133455486631 tsc 15369449468752 > rdtsc time 93133464598760 tsc 15369473104358 > 2nd event perf time 93133455506961 tsc 15369449521485 > test child finished with -1 > ---- end ---- > Convert perf time to TSC: FAILED! > [root@jouet ~]# > > I bisected it to the following kernel change, ideas? > > [acme@felicio linux]$ git bisect good > 5680d8094ffa9e5cfc81afdd865027ee6417c263 is the first bad commit > commit 5680d8094ffa9e5cfc81afdd865027ee6417c263 > Author: Peter Zijlstra <[email protected]> > Date: Thu Dec 15 13:36:17 2016 +0100 > > sched/clock: Provide better clock continuity
Right, ahunter also complained about this. I had a half arsed fugly patch in the works. Let me see if I can improve and finish.
