Public bug reported:
After upgrading to Jaunty, I experience conditions where X freezes and
the machine swaps for 5-20 minutes. I mostly work with Java applications
but this did also happen with Wireshark. The problem is 100%
reproducible, e.g. when I do two Maven compiles at the same time. A
single Maven compile consumes ~128MB while two simultaneous compiles
give me 800MB of swap. I even disabled the swap and the machine was
still "trashing" on the harddrive. According to btrace it was the
"swapper" process, but I confirmed with "free" that there was no swap.
Maybe this is due to memory mapping? I did also try to set "swappiness"
to "0" with no difference.
The problem happend some minutes ago when I clicked on the "close file"
button of wireshark: the mouse cursor froze and the machine trashed on
the hard drive for about a minute. This is the output of "free" right
after this:
total used free shared buffers cached
Mem: 3309696 2297128 1012568 0 14768 589508
-/+ buffers/cache: 1692852 1616844
Swap: 4198392 1278532 2919860
So, 1.2GB of swap and 1.6GB of free RAM?
I am doing the same work with Jaunty that I used to do with Intrepid on
the same machine. To be exact I have it on my home machine and on my
work machine, both upgraded to Jaunty.
ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
HibernationDevice: RESUME=UUID=52f86dbb-bd18-40aa-b8fc-fe0e935046a8
MachineType: Dell Inc. Inspiron 530
NonfreeKernelModules: nvidia
Package: linux-image-2.6.28-13-generic 2.6.28-13.44
ProcCmdLine: root=/dev/mapper/hostname-root ro quiet splash irqpoll
ProcEnviron:
LANGUAGE=de_DE:de:en_GB:en
PATH=(custom, user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-13.44-generic
SourcePackage: linux
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug
--
Jaunty's memory management worse than Intrepid's
https://bugs.launchpad.net/bugs/395856
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