Fix busy looping for io_u_queued_complete()

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index f61b4c1daab6b54831d5195dc36000be502461ab..8e6e29bbc7dd98e6eb9857596c02de03ebdd0635 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -343,7 +343,14 @@ prioclass=int      Set the io priority class. See man ionice(1).
 
 thinktime=int  Stall the job x microseconds after an io has completed before
                issuing the next. May be used to simulate processing being
-               done by an application. See thinktime_blocks.
+               done by an application. See thinktime_blocks and
+               thinktime_spin.
+
+thinktime_spin=int
+               Only valid if thinktime is set - pretend to spend CPU time
+               doing something with the data received, before falling back
+               to sleeping for the rest of the period specified by
+               thinktime.
 
 thinktime_blocks
                Only valid if thinktime is set - control how many blocks