Messages in this thread | | | Date | Sat, 6 Jun 2020 20:18:02 +0200 | From | Greg Kroah-Hartman <> | Subject | Re: [kernfs] ea7c5fc39a: stress-ng.stream.ops_per_sec 11827.2% improvement |
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On Sat, Jun 06, 2020 at 11:52:16PM +0800, kernel test robot wrote: > Greeting, > > FYI, we noticed a 11827.2% improvement of stress-ng.stream.ops_per_sec due to commit: > > > commit: ea7c5fc39ab005b501e0c7666c29db36321e4f74 ("[PATCH 1/4] kernfs: switch kernfs to use an rwsem") > url: https://github.com/0day-ci/linux/commits/Ian-Kent/kernfs-proposed-locking-and-concurrency-improvement/20200525-134849 >
Seriously? That's a huge performance increase, and one that feels really odd. Why would a stress-ng test be touching sysfs?
thanks,
greg k-h
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