[PATCH] README updates

[fio.git] / README

diff --git a/README b/README
index 98d82fa6339001e1e0082576dcc0b2cf28c23cfd..f64b028ffb9222b2091e314d094eaf36280830ec 100644 (file)
--- a/README
+++ b/README
@@ -105,22 +105,24 @@ The job file parameters are:
        ratemin=x       Quit if rate of x KiB/sec can't be met
        ratecycle=x     ratemin averaged over x msecs
        cpumask=x       Only allow job to run on CPUs defined by mask.
-       fsync=x         If writing, fsync after every x blocks have been written
+       fsync=x         If writing with buffered IO, fsync after every
+                       'x' blocks have been written.
+       end_fsync=x     If 'x', run fsync() after end-of-job.
        startdelay=x    Start this thread x seconds after startup
        timeout=x       Terminate x seconds after startup. Can include a
                        normal time suffix if not given in seconds, such as
                        'm' for minutes, 'h' for hours, and 'd' for days.
        offset=x        Start io at offset x (x string can include k/m/g)
        invalidate=x    Invalidate page cache for file prior to doing io
-       sync=x          Use sync writes if x and writing
+       sync=x          Use sync writes if x and writing buffered IO.
        mem=x           If x == malloc, use malloc for buffers. If x == shm,
-                       use shm for buffers. If x == mmap, use anon mmap.
+                       use shared memory for buffers. If x == mmap, use
+                       anonymous mmap.
        exitall         When one thread quits, terminate the others
        bwavgtime=x     Average bandwidth stats over an x msec window.
        create_serialize=x      If 'x', serialize file creation.
        create_fsync=x  If 'x', run fsync() after file creation.
        unlink          If set, unlink files when done.
-       end_fsync=x     If 'x', run fsync() after end-of-job.
        loops=x         Run the job 'x' number of times.
        verify=x        If 'x' == md5, use md5 for verifies. If 'x' == crc32,
                        use crc32 for verifies. md5 is 'safer', but crc32 is