Linked by Thom Holwerda on Wed 3rd Dec 2008 20:42 UTC, submitted by Michael
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linux caches a lot in RAM and in SWAP.
Linux caches a lot in swap?
When you have 4GB of SWAP and 2Gb of RAM, a lot of the changes you made is not commited when the test ends.
With 2GB of ram and only bonnie++ running, I should hope that swap would not be relevant! (Well, as long as the fs in use is not ZFS. ;-) ) At any rate, bonnie++ fsyncs at the appropriate times. I presume that the other disk benchmarks do so, as well. The other tests, like lzma, were not suitable as disk benchmarks to start with.
Edited 2008-12-04 08:01 UTC





Member since:
2008-10-23
Benchmarks are always funny, but those benchmarks are not serious.
When you do benchmarks, you've got to put more effort in it.
linux caches a lot in RAM and in SWAP. When you have 4GB of SWAP and 2Gb of RAM, a lot of the changes you made is not commited when the test ends. How much has really been written to the disk depends on a lot of things.
They test too much things at the same time.