Messages in this thread | | | From | (bill davidsen) | Subject | Re: [PATCH][2.6] No swapping on memory backed swapfiles | Date | 16 Oct 2003 21:31:46 GMT |
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In article <200310130832.h9D8WJ4g000157@81-2-122-30.bradfords.org.uk>, John Bradford <john@grabjohn.com> wrote: | Quote from Andrew Morton <akpm@osdl.org>: | > Zwane Mwaikambo <zwane@arm.linux.org.uk> wrote: | > > | > > + bdi = mapping->backing_dev_info; | > > + if (bdi->memory_backed) | > > + goto bad_swap; | > > + | > | > I guess that makes sense, although someone might want to swap onto a | > ramdisk-backed file just for some testing purpose. | | Or because some RAM is slower than the rest. This came up a while ago | on the list.
Something on my "learn how to..." list, I have some systems which are setup to cache only the first 64MB, and I bet they would run a lot faster if the rest were used as swap. It is definitely faster with mem=64 than letting the CPU beat the whole memory. -- bill davidsen <davidsen@tmr.com> CTO, TMR Associates, Inc Doing interesting things with little computers since 1979. - 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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