> I carefully checked the memory info and found most of the memory was consumed > by page cache and inode cache > It will fail the server to accept any request. I know it can be released by > using the command of echo 3 > /proc/sys/drop_caches. > But does anybody have better solution to address this issue?
Hi, You can set sysctl vm.vfs_cache_pressure=100 ( This tunes how likely the kernel will keep dentry/inode caches. ) Note that ideally the inodes should fit in memory. If it is not in memory you will hit your disk with a lot of extra reads. This will slow things down considerably. Cheers, Robert van Leeuwen
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