diff options
| author | Andres Salomon <dilinger@debian.org> | 2008-11-19 17:11:20 +0000 |
|---|---|---|
| committer | Andy Green <agreen@pads.home.warmcat.com> | 2008-11-19 17:11:20 +0000 |
| commit | d30ce47da36cc3610ae5b0cea3f64b6fd389294a (patch) | |
| tree | e54fb33c533c0354ae58084d992e8c42cebbb263 /arch/powerpc/boot/ep88xc.c | |
| parent | 6b00019f3a002f80f256d9aa9acf3b9a18b3a9e2 (diff) | |
jffs2-choke-gc-thread.patch
I've noticed some pretty poor behavior on OLPC machines after bootup, when
gdm/X are starting. The GCD monopolizes the scheduler (which in turns means
it gets to do more nand i/o), which results in processes taking much much
longer than they should to start.
As an example, on an OLPC machine going from OFW to a usable X (via auto-login
gdm) takes 2m 30s. The majority of this time is consumed by the switch into
graphical mode. With this patch, we cut a full 60s off of bootup time. After
bootup, things are much snappier as well.
Note that we have seen a CRC node error with this patch that causes the machine
to fail to boot, but we've also seen that problem without this patch.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Diffstat (limited to 'arch/powerpc/boot/ep88xc.c')
0 files changed, 0 insertions, 0 deletions