Commit graph

4 commits

Author SHA1 Message Date
Anton Blanchard
309a109255 [POWERPC] Enable SLUB in *_defconfig
When checking out the new NO_HZ support in powerpc, I noticed we never
slept for more than 2 seconds.  It turns out SLAB has a 2 second per cpu
timer that causes this.

After switching to SLUB I see some nice 4 second sleeps which is the
limit on this POWER6 box (the decrementer ticks at 512MHz):

slept 4.19 sec
slept 4.19 sec
slept 4.19 sec
slept 4.19 sec
slept 3.96 sec
slept 3.80 sec
slept 2.99 sec

Since SLUB is now the default and some powerpc defconfigs already enable
it, lets enable SLUB across the board for consistency.  While doing this
I also noticed that the maple defconfig has SLAB debugging enabled which
is sure to make your box nice and slow.  Fix that too.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-17 22:30:08 +10:00
Kumar Gala
5cc44e086d [POWERPC] Update defconfigs
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-29 16:47:38 -05:00
Kumar Gala
795bb15e07 [POWERPC] Update defconfigs
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-02 00:04:36 -05:00
Vitaly Bordug
29f1530f19 [POWERPC] Add mpc866ads board-specific bits to arch/powerpc
This add support of the Freescale mpc86xads reference board to
arch/powerpc. Supported SMC1 and SMC2 (UART and serial console), FEC
100Mbps Ethernet, SCC1 Ethernet (10Mbps hdx)

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00