[PATCH v3 0/6] powerpc use pv-qpsinlock as the default spinlock implemention
peterz at infradead.org
Fri May 27 02:54:23 AEST 2016
On Wed, May 25, 2016 at 04:18:03PM +0800, Pan Xinhui wrote:
> I do several tests on pseries IBM,8408-E8E with 32cpus, 64GB memory.
> benchmark test results are below.
> | compiling takes| 22m | 22m |
How can a kernel build take 22 minutes with 32 CPUs? That's far too
long. My 40 CPU IVB-EP takes all of 50 seconds to build an
x86_64-defconfig from scratch.
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