On Tue, Apr 01, 2008, Adam Carter wrote: > > > Does anyone know how to re-load the object into the memory > > > from the disk cache? > > > > At the moment? You have to expire the object and refetch it. > > So if an object gets written to disk, then subsequently becomes frequently > requested, will this compromise performance as the object must now be pulled > from disk every time?
Sort of. It'll then hopefully be cached in the OS buffer cache. > Following on from that - would a smaller cache_mem, which will allow the OS > to perform more disk caching, potentially perform better than a larger (but > still sensibly sized) cache_mem? Again, sort of. Thats fine for almost all use cases. A large cache_mem is suggested if you have a _very_ hot set of objects - eg most accelerators. I'd let the OS/FS do the caching everywhere else for now, at least until I or someone else writes something better. Adrian -- - Xenion - http://www.xenion.com.au/ - VPS Hosting - Commercial Squid Support - - $25/pm entry-level VPSes w/ capped bandwidth charges available in WA -
