[PATCH] Add support for specifying read/write mix workloads better

[fio.git] / README

diff --git a/README b/README
index bc2574e7f781b11815fde6eba24732c5610a0e70..3d59337df57c52ee43c841e5cfafa631c575e9da 100644 (file)
--- a/README
+++ b/README
@@ -41,6 +41,13 @@ The <jobs> format is as follows:
        directory=x     Use 'x' as the top level directory for storing files
        rw=x            'x' may be: read, randread, write, randwrite,
                        rw (read-write mix), randrw (read-write random mix)
+       rwmixcycle=x    Base cycle for switching between read and write
+                       in msecs.
+       rwmixread=x     'x' percentage of rw mix ios will be reads. If
+                       rwmixwrite is also given, the last of the two will
+                        be used if they don't add up to 100%.
+       rwmixwrite=x    'x' percentage of rw mix ios will be writes. See
+                       rwmixread.
        size=x          Set file size to x bytes (x string can include k/m/g)
        ioengine=x      'x' may be: aio/libaio/linuxaio for Linux aio,
                        posixaio for POSIX aio, sync for regular read/write io,
@@ -92,7 +99,9 @@ The <jobs> format is as follows:
                        rw, offset, length
                        where with rw=0/1 for read/write, and the offset
                        and length entries being in bytes.
-
+       lockmem=x       Lock down x amount of memory on the machine, to
+                       simulate a machine with less memory available. x can
+                       include k/m/g suffix.
 
 Examples using a job file
 -------------------------