From: Jens Axboe <axboe@kernel.dk>
Date: Thu, 16 May 2013 18:38:09 +0000 (+0200)
Subject: Document pvsync engine
X-Git-Tag: fio-2.1.1~27
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=a46c5e01ba7382395cba7a561bc232e8e978d1f3;p=fio.git

Document pvsync engine

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

diff --git a/HOWTO b/HOWTO
index b1dcd296..9b2edb37 100644
--- a/HOWTO
+++ b/HOWTO
@@ -568,6 +568,8 @@ ioengine=str	Defines how the job issues io to the file. The following
 
 			vsync	Basic readv(2) or writev(2) IO.
 
+			psyncv	Basic preadv(2) or pwritev(2) IO.
+
 			libaio	Linux native asynchronous io. Note that Linux
 				may only support queued behaviour with
 				non-buffered IO (set direct=1 or buffered=0).
diff --git a/fio.1 b/fio.1
index 5082bf89..f54ea34b 100644
--- a/fio.1
+++ b/fio.1
@@ -448,6 +448,9 @@ Basic \fIpread\fR\|(2) or \fIpwrite\fR\|(2) I/O.
 Basic \fIreadv\fR\|(2) or \fIwritev\fR\|(2) I/O. Will emulate queuing by
 coalescing adjacents IOs into a single submission.
 .TP
+.B pvsync
+Basic \fIpreadv\fR\|(2) or \fIpwritev\fR\|(2) I/O.
+.TP
 .B libaio
 Linux native asynchronous I/O. This ioengine defines engine specific options.
 .TP