Hello, Dnia N Kwietnia 6 2008, 16:36, Henrik Nordstrom napisał(a): >> w3cache ~ # cat /etc/squid/squid.conf | grep cache_dir | grep -v "^#" >> cache_dir aufs /var/cache/squid/dysk1 30000 16 256 >> cache_dir aufs /var/cache/squid/dysk2 30000 16 256 >> cache_dir coss /dev/sdd1 30000 block-size=2048 overwrite-percent=40 >> max-size=1048576 membufs=30 >> cache_dir coss /dev/sde1 30000 block-size=2048 overwrite-percent=40 >> max-size=1048576 membufs=30 >> (In cache.log i seen that standard 10mb membfus was too small) > > 4 * 30 * 10 MB = 1.2 GB Can I calculate probably ram usage of cache_dir both for coss and aufs storage in that same way? >> Is in that configuration 4-5GB of ram may be used for cache etc? >> Is it normal? >> >> I have also huge amount of ram used for cache_mem: >> w3cache ~ # cat /etc/squid/squid.conf | grep cache_mem | grep -v "^#" >> cache_mem 2048 MB > > 1.2 GB + 2 GB = 3.2 GB. > > (...) > > Disable the swap. You don't need it and it's only causing you problems. Funny, this resolved problem. >> Why there is so much buffers? > > Linux uses any free memory as filesystem cache to speed up disk access. > But the problem is that if you have an huge application with lots of > infrequently accessed memory such as Squid this may cause the > application to get partially swapped out even when there isn't really a > shortage of memory.. and for Squid it's very bad to get swapped out.. > (unlike most other applications in that memory usage category) Ok but this is strange. >> w3cache ~ # free >> total used free shared buffers >> cached >> Mem: 8155824 8108788 47036 0 2687584 >> 1048768 >> -/+ buffers/cache: 4372436 3783388 >> Swap: 996008 167864 828144 > > Plenty of free memory there. Hm, can I raise cache_dir on that situation? (with disabled swap and so huge amount of ram used by buffers/cache) Regards, -- Tomasz
