Am 04.06.2012 12:50, schrieb Alexey I. Froloff: > On Fri, Jun 01, 2012 at 02:20:02PM -0500, Michael Cronenworth wrote: >> It, in fact, provides proof that this feature is searching for a >> problem. Which applications require gigabytes per second throughput out >> of /tmp? > sort(1) and maybe mock(1) ;-) > >> (and your numbers for tmpfs would equal ext4 once you started swapping) > No. Tried with 2G RAM, 8G swap, 6G tmpfs and 5G file. Stupid dd > test was 2-3 times faster on tmpfs that ext4. but the stupid dd-test does not reflect reality for most workloads /tmp is not touched most of the time in any way - keep in mind that applications needs to be changed to usr /var/tmp if they expect really large temp-files compare the real benefit with the complete work and bugreports for forgotten packages trying to store a iso-image and such things on /tmp the benefit for the normal workload has to be compared with the overall work for a feature and not only some generic tests
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