Am 17.05.2012 14:46, schrieb Jari Fredriksson: > On 17.5.2012 15:36, Reindl Harald wrote: >> >> >> Am 17.05.2012 14:29, schrieb Joel Rees: >>> Do you understand the reason you still set up swap, even though your >>> entire workload working set fits into RAM? >> >> there is no single reason if you have neough RAM >> > > RAM is better used for disk cache than for idling processes. If a > process does nothing it can be swapped out and the memory used where needed
says who? if you have running applications than for a reason swap them out for cache POSSIBLY re-needed disk blocks will cause delays and re-read from disk on a typical workload with 8-16 GB RAm there is no sible reason for swap, especially on workstations but mostly also on servers if they have enough RAM and i am speaking here about a server hosting some hundret domains as example which has 7000 mysql tables, no single byte swapped and a load-avg around 0.8 again: swap may be usefull if you have too few RAM on modern machines starting with 8-16 GB this is esotheric
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