On Tue, 17 Mar 2009 09:54:00 +0100, Matus UHLAR - fantomas <uhlar@xxxxxxxxxxx> wrote: [cut] > is that one quad-core with hyperthreading, two quad-cores without HT or two > dual-cores with HT? We apparently should count HT CPU's as one, not two. 2 Xeon Quad-cores (4 cores per/processor, 8 total), no HT... [cut] >> > total used free shared buffers >> > cached >> > Mem: 32148 2238 29910 0 244 >> > 823 >> > -/+ buffers/cache: 1169 30978 >> > Swap: 15264 0 15264 > > swap is quite useless here I'd say... Uptime was 1/2 min. Look at it now: $ free -m total used free shared buffers cached Mem: 32151 31996 155 0 1891 24108 -/+ buffers/cache: 5996 26155 Swap: 15264 6 15258 [cut] > I'd say that the 73.5 Gb disk should be used only for OS, logs etc. I did it. [cut] >> I'm not to up on the L1/L2 efficiencies, but "64 256" or higher L1 seems >> to be better for larger dir sizes. OK, I will try... [cut] > Note that for 300GiB HDD you will be using max 250, more probably 200 and > some ppl would advise 150GiB of cache. Leave some space for metadata and > some for reserve - filesystems may benefit of it. I always configure (to use) only 80% HDD... [cut] >> For a quad or higher CPU machine, you may do well to have multiple Squid >> running (one per 2 CPUs or so). One squid doing the caching on the 300GB >> drives and one on the smaller ~100 GB drives (to get around a small bug >> where mismatched AUFS dirs cause starvation in small dir), peered >> together with no-proxy option to share info without duplicating cache. Cool! Thanks... -- Herbert