Add randtrimwrite data direction

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index 67d7c710fa96393348357f0456999d651483eb23..4324a9750954624e040056d90502a31d93ebfa11 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -900,7 +900,15 @@ Random mixed reads and writes.
 .TP
 .B trimwrite
 Sequential trim+write sequences. Blocks will be trimmed first,
-then the same blocks will be written to.
+then the same blocks will be written to. So if `io_size=64K' is specified,
+Fio will trim a total of 64K bytes and also write 64K bytes on the same
+trimmed blocks. This behaviour will be consistent with `number_ios' or
+other Fio options limiting the total bytes or number of I/O's.
+.TP
+.B randtrimwrite
+Like
+.B trimwrite ,
+but uses random offsets rather than sequential writes.
 .RE
 .P
 Fio defaults to read if the option is not specified. For the mixed I/O
@@ -2488,11 +2496,11 @@ Specify the label or UUID of the DAOS pool to connect to.
 Specify the label or UUID of the DAOS container to open.
 .TP
 .BI (dfs)chunk_size
-Specificy a different chunk size (in bytes) for the dfs file.
+Specify a different chunk size (in bytes) for the dfs file.
 Use DAOS container's chunk size by default.
 .TP
 .BI (dfs)object_class
-Specificy a different object class for the dfs file.
+Specify a different object class for the dfs file.
 Use DAOS container's object class by default.
 .TP
 .BI (nfs)nfs_url