Messages in this thread | | | From | Tim Connors <> | Subject | Re: why swap at all? | Date | Tue, 1 Jun 2004 20:13:59 +1000 |
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"Buddy Lumpkin" <b.lumpkin@comcast.net> said on Tue, 1 Jun 2004 02:38:42 -0700: > If I know in advance that filesystem I/O will eventually fill physical > memory with filesystem pages (pagecache), then why would I allow file system > I/O to force out anonymous pages on the system? Also, why wake up an > expensive algorithm (kswapd) that walks all pages in physical memory in > order to determine which pages are "Least Recently Used" on a system where ...
Incidentally, what happens when kswapd becomes a zombie? I've seen this a few times, and I am currently posting on a machine that has been up for 15 days, and which oopsed 10 or so days ago (something to do with nfs, but don't worry about that - the machine is running 2.4.20, and is not exactly up-to-date), killing kswapd.
But I don't notice anything at all different about how the system is behaving. However, I haven't been doing much more than running emacs and mozilla recently - I haven't been running my visualisation software that typically stresses the VM beyond usefullness.
-- TimC -- http://astronomy.swin.edu.au/staff/tconnors/ Whip me. Beat me. Make me maintain AIX. - 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/
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