2011/3/23 Francisco Josà MÃrquez GÃmez <fjmarquez.ext@xxxxxxxxxxxxxxxxx>: > The system will be virtual, I use VMWare ESX, but I want know how much > resource should I use for it (mainly, hard disk, ram and processor). As I said before, I don't recommend VM but YMMV. In any case, you should check out Squid's documentation. http://wiki.squid-cache.org/SquidFaq/SquidProfiling http://wiki.squid-cache.org/BestOsForSquid What matters the most to obtain the most out of any setup is to properly tune a few parameters. In priority order: * amount of physical memory available - the more the better, squid performance will suffer badly if parts of it are swapped out of core memory * Number of harddrives used for cache and their architecture - squid disk access patterns hit particularly hard RAID systems - especially RAID4/5. Since the data are not by definition valuable, it is recommended to run the cache_dirs on JBOD 1 (see SquidFaq/RAID) of course the disk type matters: SCSI performs better than ATA, 15kRPM is better than 5.4kRPM, etc. * noatime mount option - atime is just useless for cache data - squid does its own timestamping, mounting the filesystem with the noatime option just saves a whole lot of writes to the disks * amount of space used - always leave about 20% of free space on the filesystems containing your cache_dirs: generally FS performance degrades dramatically if used space exceeds 80% * on OSes which offer multiple choices, type of filesystem (except for a few really bad choices) Other interesting URLs: http://wiki.squid-cache.org/ConfigExamples/ http://www.squid-cache.org/Doc/config/ http://www.squid-cache.org/Misc/related-writings.html http://old.squid-cache.org/Doc/Hierarchy-Tutorial/ http://www.deckle.co.za/squid-users-guide/ http://www.squid-cache.org/Library/ HTH Rafa -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
