Messages in this thread | | | Date | Tue, 1 Feb 2005 17:36:44 +0100 | From | DervishD <> | Subject | Re: My System doesn't use swap! |
| |
Hi Bill :)
* Bill Davidsen <davidsen@tmr.com> dixit: > >Swap is orders of magnitude slower than RAM. Why put things there if you > >still have RAM left? The kernel only puts things in swap when it has no > >more RAM _and_ has already deleted big chunks of its disk cache. > Unless he just booted, I would expect at least a little use of the swap, > something like this, on a machine with 1GB RAM and not much happening.
I have 2.4.29 running and uptime is about 24 hours now, and with 1Gig of RAM and a loadavg in the last 15 minutes has been 4, more or less, and I have 130 megs of free memory and none of my 512 megs swap is used. And this is very common for me. The only way of using swap is starting X, mozilla (some pre-firefox version will do) and one of the many memory leaking apps available for the X Window System. On console, with the apps I run usually (that includes setiathome too, and heavy use of the C compiler) I don't hit swap. This is my memory status right now:
total: used: free: shared: buffers: cached: Mem: 927006720 796491776 130514944 0 5517312 738082816 Swap: 536862720 0 536862720 MemTotal: 905280 kB MemFree: 127456 kB MemShared: 0 kB Buffers: 5388 kB Cached: 720784 kB SwapCached: 0 kB Active: 7096 kB Inactive: 719092 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 905280 kB LowFree: 127456 kB SwapTotal: 524280 kB SwapFree: 524280 kB
Pretty low usage, and still more than 700MB of cached memory available to avoid using swap.
Raúl Núñez de Arenas Coronado
-- Linux Registered User 88736 http://www.dervishd.net & http://www.pleyades.net/ It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |