On 08.08.2010, Marcus Kool wrote:
> vm.swappiness=20
> vm.vfs_cache_pressure=50
Do you have some numbers that actually show a significant improvement?
I think at least swappiness should better be 100 here, to free as much as
possible memory. Unused applications hanging around for a long
time can conserve quite a lot of pagecache which otherwise could be used
actively.
The inode cache on a system with 4 TB of diskspace is not more than ca.
400-500 MB, I doubt it makes sense to increase the kernels focus
on reclaiming more pagecache (which you trying to preserve by lowering
swappiness).
Received on Sun Aug 08 2010 - 20:32:42 MDT
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