From: Robert Elliott <elliott@hpe.com>
Date: Tue, 10 Jan 2017 21:21:25 +0000 (-0600)
Subject: pmemblk, dev-dax: Update descriptions
X-Git-Tag: fio-2.17~5
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=a12fc8b23973709b3dbe8cf752c7e4f4b31a3233

pmemblk, dev-dax: Update descriptions

Make the descriptions of the pmemblk and dev-dax ioengines
more symmetric.

Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/HOWTO b/HOWTO
index 33f8718a..9c8a8375 100644
--- a/HOWTO
+++ b/HOWTO
@@ -904,11 +904,13 @@ ioengine=str	Defines how the job issues io to the file. The following
 				overwriting. The writetrim mode works well
 				for this constraint.
 
-			pmemblk	Read and write through the NVML libpmemblk
-				interface.
+			pmemblk	Read and write using filesystem DAX to a file
+				on a filesystem mounted with DAX on a persistent
+				memory device through the NVML libpmemblk library.
 
-			dev-dax Read and write through a DAX device exposed
-				from persistent memory.
+			dev-dax Read and write using device DAX to a persistent
+				memory device (e.g., /dev/dax0.0) through the
+				NVML libpmem library.
 
 			external Prefix to specify loading an external
 				IO engine object file. Append the engine
diff --git a/fio.1 b/fio.1
index f4862763..56f2d110 100644
--- a/fio.1
+++ b/fio.1
@@ -811,10 +811,12 @@ and discarding before overwriting. The trimwrite mode works well for this
 constraint.
 .TP
 .B pmemblk
-Read and write through the NVML libpmemblk interface.
+Read and write using filesystem DAX to a file on a filesystem mounted with
+DAX on a persistent memory device through the NVML libpmemblk library.
 .TP
 .B dev-dax
-Read and write through a DAX device exposed from persistent memory.
+Read and write using device DAX to a persistent memory device
+(e.g., /dev/dax0.0) through the NVML libpmem library.
 .RE
 .P
 .RE