try decreasing the cache_mem !! 256mb maybe a good starting value !! On 10/21/07, rihad <rihad@xxxxxxx> wrote: > Tek Bahadur Limbu wrote: > > Hi Rihad, > > > > rihad wrote: > >> CacheMgr output: > >> Memory accounted for: > >> Total accounted: 1323944 KB > >> > >> Memory usage using top(1): > >> PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU > >> COMMAND > >> 29601 squid 29 20 0 2533M 2465M kserel 92:12 0.00% squid > >> > >> > >> Almost twice as much memory! Any hints? > > > > What is your settings for the following parameters? > > > > cache_mem > > maximum_object_size > > maximum_object_size_in_memory > > cache_replacement_policy > > memory_replacement_policy > > ipcache_size > > fqdncache_size > > > cache_mem 1000 MB > maximum_object_size 100 MB > # maximum_object_size_in_memory 8 KB > cache_replacement_policy heap LFUDA > memory_replacement_policy heap LFUDA > # ipcache_size 1024 > # fqdncache_size 1024 > > > Which storage scheme are you using? > > > aufs > > >> > >> Number of clients accessing cache: 517 > >> Normally load is within 500-1500 clients. > > > > How long is your Squid process been running? > > > 3 to 4 days, but it doesn't matter: I've had weeks or months of uptime, > too. Eventually the process hits its memory size limit (kern.maxdsiz) > set at 2.5 gigs at the moment and croaks (and restarts) unless I > decrease cache_mem. There's little point in using less RAM as the box > has ~3.3 gigs of it, and is dedicated to Squid (and its dedicated dnscache). > > > Your server's memory usage seems unusually high even for 1500 clients. > > My proxy server which serves 2000-3000 clients is currently using 650 MB > > of memory despite running for more than 55 days. > > > How big is your cache store? > > > > >> > >> Squid 2.6.16 > >> FreeBSD 6.2-RELEASE-p8 > > > > What is your machines specs? > > > # grep -e ^CPU: -e memory -e ^ad /var/run/dmesg.boot > CPU: Intel(R) Pentium(R) D CPU 2.80GHz (2813.85-MHz 686-class CPU) > real memory = 3489595392 (3327 MB) > avail memory = 3414970368 (3256 MB) > ad4: 238475MB <Seagate ST3250824AS 3.AAE> at ata2-master SATA150 > ad6: 238475MB <Seagate ST3250824AS 3.AAE> at ata3-master SATA150 > > Two cache_dir's lie on both disks (25 gigs each at the moment, but I'm > planning for more). > > >> > >> Port compiled with all options unchecked and both AUFS & KQUEUE checked > >> (as per "make config" and /var/db/ports/squid/options) > > > > Can you post the full output of "squidclient mgr:info"? > > > Squid Object Cache: Version 2.6.STABLE16 > Start Time: Thu, 18 Oct 2007 17:10:09 GMT > Current Time: Sun, 21 Oct 2007 09:39:51 GMT > Connection information for squid: > Number of clients accessing cache: 517 > Number of HTTP requests received: 9410288 > Number of ICP messages received: 0 > Number of ICP messages sent: 0 > Number of queued ICP replies: 0 > Request failure ratio: 0.00 > Average HTTP requests per minute since start: 2431.8 > Average ICP messages per minute since start: 0.0 > Select loop called: 74113837 times, 3.133 ms avg > Cache information for squid: > Request Hit Ratios: 5min: 35.6%, 60min: 37.1% > Byte Hit Ratios: 5min: 21.4%, 60min: 18.1% > Request Memory Hit Ratios: 5min: 12.0%, 60min: 15.0% > Request Disk Hit Ratios: 5min: 22.9%, 60min: 26.2% > Storage Swap size: 22427274 KB > Storage Mem size: 1023900 KB > Mean Object Size: 13.62 KB > Requests given to unlinkd: 0 > Median Service Times (seconds) 5 min 60 min: > HTTP Requests (All): 0.08265 0.08265 > Cache Misses: 0.17711 0.18699 > Cache Hits: 0.00463 0.00562 > Near Hits: 0.12106 0.14252 > Not-Modified Replies: 0.00286 0.00379 > DNS Lookups: 0.11405 0.10906 > ICP Queries: 0.00000 0.00000 > Resource usage for squid: > UP Time: 232181.468 seconds > CPU Time: 5971.253 seconds > CPU Usage: 2.57% > CPU Usage, 5 minute avg: 3.98% > CPU Usage, 60 minute avg: 3.55% > Process Data Segment Size via sbrk(): -1583756 KB > Maximum Resident Size: 2549632 KB > Page faults with physical i/o: 3799 > Memory accounted for: > Total accounted: 1333488 KB > memPoolAlloc calls: 1090270339 > memPoolFree calls: 1082572188 > File descriptor usage for squid: > Maximum number of file descriptors: 11072 > Largest file desc currently in use: 1715 > Number of file desc currently in use: 1622 > Files queued for open: 0 > Available number of file descriptors: 9450 > Reserved number of file descriptors: 100 > Store Disk files open: 41 > IO loop method: kqueue > Internal Data Structures: > 1652462 StoreEntries > 200285 StoreEntries with MemObjects > 200125 Hot Object Cache Items > 1646504 on-disk objects > > > > > > Thanking you... > > > Thank you too! > -- Sds. Alexandre J. Correa Onda Internet / OPinguim.net http://www.ondainternet.com.br http://www.opinguim.net
