Messages in this thread | | | Date | Thu, 26 Jun 2014 12:36:52 +0200 | From | Bernd Schubert <> | Subject | Re: [PATCH] sysctl: Add a feature to drop caches selectively |
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On 06/26/2014 08:13 AM, Artem Bityutskiy wrote: > On Thu, 2014-06-26 at 11:06 +1000, Dave Chinner wrote: >> Your particular use case can be handled by directing your benchmark >> at a filesystem mount point and unmounting the filesystem in between >> benchmark runs. There is no ned to adding kernel functionality for >> somethign that can be so easily acheived by other means, especially >> in benchmark environments where *everything* is tightly controlled. > > If I was a benchmark writer, I would not be willing running it as root > to be able to mount/unmount, I would not be willing to require the > customer creating special dedicated partitions for the benchmark, > because this is too user-unfriendly. Or do I make incorrect assumptions?
But why a sysctl then? And also don't see a point for that at all, why can't the benchmark use posix_fadvise(POSIX_FADV_DONTNEED)?
Cheers, Bernd
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