> > dont top list, > > we have seveal heavy load squids, and we realized that sometimes inet surf is > slow, we've discovered that it is because IO (as you see in your top command > more than 1% of IO waiting), so we purge our cache to dont let it rise > cache_swap_high percentage very often > The iowait time is more than 1%, at times between 20-50%. We've tried purging the cache a few times but that only appears to give temporary relief to the issue. I was looking to tune our configuration more before ruling out the need for more caching servers or looking into faster disks for just the cache.