Messages in this thread | | | Date | Sat, 29 Dec 2001 16:15:37 +0100 | From | Andrea Arcangeli <> | Subject | Re: [2.4.17/18pre] VM and swap - it's really unusable |
| |
On Fri, Dec 28, 2001 at 09:16:38PM +0100, Andreas Hartmann wrote: > Hello all, > > Again, I did a rsync-operation as described in > "[2.4.17rc1] Swapping" MID <3C1F4014.2010705@athlon.maya.org>. > > This time, the kernel had a swappartition which was about 200MB. As the > swap-partition was fully used, the kernel killed all processes of knode. > Nearly 50% of RAM had been used for buffers at this moment. Why is there > so much memory used for buffers? > > I know I repeat it, but please: > > Fix the VM-management in kernel 2.4.x. It's unusable. Believe > me! As comparison: kernel 2.2.19 didn't need nearly any swap for > the same operation! > > Please consider that I'm using 512 MB of RAM. This should, or better: > must be enough to do the rsync-operation nearly without any swapping - > kernel 2.2.19 does it! > > The performance of kernel 2.4.18pre1 is very poor, which is no surprise, > because the machine swaps nearly nonstop.
please try to reproduce on 2.4.17rc2aa2, thanks.
ftp://ftp.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.17rc2aa2.bz2
Andrea - 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/
| |