Messages in this thread | | | Date | Tue, 25 Dec 2001 05:37:40 -0500 | From | Paul Boley <> | Subject | Re: severe slowdown with 2.4 series w/heavy disk access |
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vda wrote:
> > > > total used free shared buffers > > cached > > Mem: 417472 412192 5280 0 20632 > > 315680 > > -/+ buffers/cache: 75880 341592 > > Swap: 136544 0 136544 > > It seems you think your memory is used for no purpose, > but kernel just keeps page cache in your RAM (kernel bugs are indeed > possible, but your test does not show any buggy behavior IMHO).
My whole system slows down (commands take a long time to execute, decompression slows, ls in an empty dir takes 10 sec)
> > To verify this, you may repeat this experiment on a separate partition: > 1) mount a partition > 2) do the test as you described > 3) umount the partition
I did this, and it uncached some, but I only had 60megs (out of 416) free after unmounting the partition. The cache went down to about 5 megs, and in-use was at 350 megs.
> > I believe you should see tons of free memory then, especially if your tarfile > is also on that partition. > Please report back if you would do the test. > -- > vda - 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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