fio: HOWTO update
In case of cpuio , on smp machines we need increase numjobs
to <num of cpu's> to get the desired load across cpu's.
Just updated HOWTO with this info.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/HOWTO b/HOWTO
index 0d3d775..d8c6b94 100644
--- a/HOWTO
+++ b/HOWTO
@@ -383,7 +383,10 @@
cycles according to the cpuload= and
cpucycle= options. Setting cpuload=85
will cause that job to do nothing but burn
- 85% of the CPU.
+ 85% of the CPU. In case of SMP machines,
+ use numjobs=<no_of_cpu> to get desired CPU
+ usage, as the cpuload only loads a single
+ CPU at the desired rate.
guasi The GUASI IO engine is the Generic Userspace
Asyncronous Syscall Interface approach