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Add file hashing helpers
[fio.git]
/
HOWTO
diff --git
a/HOWTO
b/HOWTO
index 3d6b354b87b7df40f723c497ab82b1424cd287f6..d8c6b9414eef85be48779d7018682cf2bbd07470 100644
(file)
--- a/
HOWTO
+++ b/
HOWTO
@@
-344,7
+344,7
@@
ioengine=str Defines how the job issues io to the file. The following
psync Basic pread(2) or pwrite(2) io.
psync Basic pread(2) or pwrite(2) io.
- vsync Basic readv(2) or writev(
3
) IO.
+ vsync Basic readv(2) or writev(
2
) IO.
libaio Linux native asynchronous io.
libaio Linux native asynchronous io.
@@
-383,7
+383,10
@@
ioengine=str Defines how the job issues io to the file. The following
cycles according to the cpuload= and
cpucycle= options. Setting cpuload=85
will cause that job to do nothing but burn
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
guasi The GUASI IO engine is the Generic Userspace
Asyncronous Syscall Interface approach