Allow ranges of CPUs in cpus_allowed option

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 5a55c1a21b574a3adba1aa52f4f0fee6f42458c7..7bd71a9a961c64c69ba8fec686fa1cb262c45a8c 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -590,7 +590,9 @@ cpumask=int Set the CPU affinity of this job. The parameter given is a
 
 cpus_allowed=str Controls the same options as cpumask, but it allows a text
                setting of the permitted CPUs instead. So to use CPUs 1 and
 
 cpus_allowed=str Controls the same options as cpumask, but it allows a text
                setting of the permitted CPUs instead. So to use CPUs 1 and

-               5, you would specify cpus_allowed=1,5.
+               5, you would specify cpus_allowed=1,5. This options also
+               allows a range of CPUs. Say you wanted a binding to CPUs
+               1, 5, and 8-15, you would set cpus_allowed=1,5,8-15.

 
 startdelay=time        Start this job the specified number of seconds after fio
                has started. Only useful if the job file contains several
 
 startdelay=time        Start this job the specified number of seconds after fio
                has started. Only useful if the job file contains several