On Thu, 2005-06-30 at 17:00 -0600, Brett Glass wrote: > At 04:48 PM 6/30/2005, Henrik Nordstrom wrote: > > >It is planned to implement a real RAM based cache in Squid, it just isn't really there yet. > > It would help as we move toward peak traffic levels of 500 to 1000 hits per second. At > that level, even a cache with multiple drives becomes noticeably disk-bound. Right > now, adding RAM doesn't help, because popular objects don't wind up there unless they're > new. We were baffled as to why the extra RAM wasn't helping until we did some tests and > saw that the TCP_HITs weren't followed by TCP_MEM_HITs on the same URLs. > > We could create a "memory disk," but populating it is awkward. Huh? Just put your cache_dir in a ramdisk or tmpfs (i.e. /dev/shm on recent Linuxes, /tmp on Solaris, don't really know about other OSes..) Kinkie
