True, but I recommend it, especially for the OS processing the disk I/O, and authenticators, etc, but it's not really a requirement. --------------------------------------------- Chad E. Naugle Tech Support II, x. 7981 Travel Impressions, Ltd. >>> "Bradley, Stephen W. Mr." <bradlesw@xxxxxxxxxx> 12/17/2010 11:44 AM >>> I would normally agree but until Squid fully implements SMP what would havin ________________________________________ From: Chad Naugle [Chad.Naugle@xxxxxxxxxxx] Sent: Friday, December 17, 2010 10:12 AM To: Marcello Romani; squid-users@xxxxxxxxxxxxxxx Subject: Re: Cache performance I would also highly recommend using at least a Dual Core CPU, 1.6GHz + for 200 users. CPU performance is also a very important factor for user volume. --------------------------------------------- Chad E. Naugle Tech Support II, x. 7981 Travel Impressions, Ltd. >>> Marcello Romani <mromani@xxxxxxxxxxxxxxx> 12/17/2010 10:01 AM >>> Il 17/12/2010 11:09, benjamin fernandis ha scritto: > Dear Friends, > > I m going to use squid for cache purpose only.And i heard that for > squid cache performance i have to use good RAM and HDD.I have 4gb RAM > and 160 GB SATA HDD.And i have 200 users' network.So please suggest me > the same.Means can i go with this H/W specification or is there any > suggestion....Please friends, suggest me .....And in this server i m > using only squid for cache gain....so also suggest me for RAM also. > > And one more thing, for better disk performace should i have to go > with raid 0 or any other suggestion..... > > And what are the main squid configuration parameter for cache gain....? > > thanks, > Benjo j. I'm no expert but what you have to avoid is having the squid process swap. So following the rough rule of 10MB of RAM for each GB of cache I'd try first with a 100GB cache, which would require 1GB RAM just for managing it. I'd keep cache mem low, like 128M. The rest of RAM would be used by OS for disk cache and buffers. Mount the cache dir with noatime option to avoid unnecessary disk accesses. To increase performance, use multiple cache_dir, each pointing to its own physical disk. Avoid raid if you need performance. That said, I don't want to sound rude, but I think your questions show that you should do some research on your own first. Please search the mailing list archives and the squid site. Many general questions about squid performance and configuration can be solved just by reading those docs and following the links. For a start: http://wiki.squid-cache.org/SquidFaq/ConfiguringSquid HTH -- Marcello Romani Travel Impressions made the following annotations ------------------------------------------------------------- "This message and any attachments are solely for the intended recipient and may contain confidential or privileged information. If you are not the intended recipient, any disclosure, copying, use, or distribution of the information included in this message and any attachments is prohibited. If you have received this communication in error, please notify us by reply e-mail and immediately and permanently delete this message and any attachments. Thank you." Travel Impressions made the following annotations ------------------------------------------------------------- "This message and any attachments are solely for the intended recipient and may contain confidential or privileged information. If you are not the intended recipient, any disclosure, copying, use, or distribution of the information included in this message and any attachments is prohibited. If you have received this communication in error, please notify us by reply e-mail and immediately and permanently delete this message and any attachments. Thank you."
