Update documentation for 'replay_skip'

Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/HOWTO b/HOWTO
index 8ee00fd1210dbf7089f5b58b270f46ebb41c2721..d200700961c91174c1f0075eccd6a3ee0eb29ce8 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -2346,6 +2346,14 @@ I/O replay
 
        Scale sector offsets down by this factor when replaying traces.
 
 
        Scale sector offsets down by this factor when replaying traces.
 

+.. option:: replay_skip=str
+
+       Sometimes it's useful to skip certain IO types in a replay trace.
+       This could be, for instance, eliminating the writes in the trace.
+       Or not replaying the trims/discards, if you are redirecting to
+       a device that doesn't support them. This option takes a comma
+       separated list of read, write, trim, sync.
+

 
 Threads, processes and job synchronization
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Threads, processes and job synchronization
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

diff --git a/fio.1 b/fio.1
index 24bdcdb0afffda6a5c16f56629652991be8dec61..7d5d8be60c056c6f2b8a8e61d7b92db90c0e7302 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -2067,6 +2067,12 @@ value.
 Scale sector offsets down by this factor when replaying traces.
 .SS "Threads, processes and job synchronization"
 .TP
 Scale sector offsets down by this factor when replaying traces.
 .SS "Threads, processes and job synchronization"
 .TP

+.BI replay_skip \fR=\fPstr
+Sometimes it's useful to skip certain IO types in a replay trace. This could
+be, for instance, eliminating the writes in the trace. Or not replaying the
+trims/discards, if you are redirecting to a device that doesn't support them.
+This option takes a comma separated list of read, write, trim, sync.
+.TP

 .BI thread
 Fio defaults to creating jobs by using fork, however if this option is
 given, fio will create jobs by using POSIX Threads' function
 .BI thread
 Fio defaults to creating jobs by using fork, however if this option is
 given, fio will create jobs by using POSIX Threads' function