https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254040
Mark Johnston <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Open CC| |[email protected] --- Comment #6 from Mark Johnston <[email protected]> --- Is this still a problem on supported releases? A few years ago I fixed a few scheduler race conditions, mostly in ULE, that caused cores to go idle even with pending work. I tried running this on a 16-core AMD 7950X3D with hyperthreading enabled, and don't see much variance: git (main) markj@xinde> for i in $(seq 1 10); do t; done 1048576000 bytes transferred in 4.312122 secs (243169371 bytes/sec) 1048576000 bytes transferred in 4.062625 secs (258103089 bytes/sec) 1048576000 bytes transferred in 4.081073 secs (256936378 bytes/sec) 1048576000 bytes transferred in 4.017203 secs (261021443 bytes/sec) 1048576000 bytes transferred in 4.118516 secs (254600457 bytes/sec) 1048576000 bytes transferred in 4.063185 secs (258067483 bytes/sec) 1048576000 bytes transferred in 4.067748 secs (257778022 bytes/sec) 1048576000 bytes transferred in 4.484794 secs (233806939 bytes/sec) 1048576000 bytes transferred in 4.207453 secs (249218714 bytes/sec) 1048576000 bytes transferred in 3.954746 secs (265143670 bytes/sec) -- You are receiving this mail because: You are the assignee for the bug.
