Update HOWTO for read_iolog change

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

diff --git a/HOWTO b/HOWTO
index ff7aa096495a969aea9eddb0c8159f8054b6b0d1..383946145794961dfb419be326c70f041a0b8625 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -2409,6 +2409,10 @@ I/O replay
        :manpage:`blktrace(8)` for how to capture such logging data. For blktrace
        replay, the file needs to be turned into a blkparse binary data file first
        (``blkparse <device> -o /dev/null -d file_for_fio.bin``).
+       You can specify a number of files by separating the names with a ':'
+       character. See the :option:`filename` option for information on how to
+       escape ':' and '\' characters within the file names. These files will
+       be sequentially assigned to job clones created by :option:`numjobs`.
 
 .. option:: read_iolog_chunked=bool