Joel Jaeggli disse na ultima mensagem: > Jeff Pang wrote: >> 2007/7/4, Michel Santos <michel@xxxxxxxxxxxxxx>: >>> >>> Snow Wolf disse na ultima mensagem: >>> >>From my experience,when squid has used full of cache_dir close to >>> > 20-30G,the OS would become very high-load due to the disk cache >>> > swap.So I think even you have 160G disk,you may not set the cache_dir >>> > bigger than 20G. >>> > > > The real measure here is number of i/o's per second per spindle... > you'll something on the order of 50-100 from 7200 rpm disks (read > service time is around 20ms) given that not all activities (writes) > require an immediate seek. In the context of squid, fast disks or lots > of disks are more important than large disks because scaling comes from > the number of requests that can be served.... > I better hold my peace here ... >>> ahem ... so I would need 8 x 160G disks in order getting 160G of >>> cache_dir >>> or 4 x 250 also would do it? And the rest of each disk is used by this >>> "disk cache swap" thing? >>> > > the rest of the disk is empty. > as long as they are new this empty disks are really cool but I, may be I am kind of wierd, buy them to fill them up ;) Michel ... **************************************************** Datacenter Matik http://datacenter.matik.com.br E-Mail e Data Hosting Service para Profissionais. ****************************************************
