tweaking RAM for squid3 server with adzap

Discussion in 'General Linux' started by mickybox, Dec 4, 2013.

  1. mickybox

    mickybox New Member

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    I'm running squid3 with adzap on this LUBUNTU machine with 7G ram.


    Cpu(s): 0.2%us, 0.2%sy, 0.0%ni, 99.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
    Mem: 7105252k total, 5977928k used, 1127324k free, 341816k buffers
    Swap: 3905532k total, 444k used, 3905088k free, 4785140k cached

    root@:~# free -m
    total used free shared buffers cached
    Mem: 6938 5837 1100 0 333 4673
    -/+ buffers/cache: 830 6107
    Swap: 3813 0 3813


    squid3.conf
    cache_mem 2000 MB
    cache_replacement_policy heap LFUDA
    cache_dir aufs /ram 4096 16 256

    I've create this RAMFS in order to have the cache_dir only in RAM.

    tmpfs 4.7G 3.0G 1.8G 63% /ram

    root@:~# cd /ram
    root@:/ram# ls
    00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F squid3 swap.state swap.state.last-clean

    Everything works fine.I'm just trying to improve to the maximum of speed.
    I'd like to know how should I tweak
    sysctl
    /proc/sys/vm
    vfs_cache_pressure ?
    the dirty stuff ?
    the swappiness ?
    or other parameters ?

    My goal is to have it work only in RAM,no disk usage.

    Would greatly appreciate any suggestions.

    Mick

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