X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=HOWTO;h=6952c84e84b141fb81b6c649ec0fb054d8bcc248;hp=0d3d2fb4aaf7e47e6957d220875341a456e71a2f;hb=5c4ef02e212df7cc536680ac44dd01f34bfb74a2;hpb=a3ae5b057588f555a1544ec749167a44c5a071aa

diff --git a/HOWTO b/HOWTO
index 0d3d2fb4..6952c84e 100644
--- a/HOWTO
+++ b/HOWTO
@@ -798,6 +798,9 @@ 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.
+
 			external Prefix to specify loading an external
 				IO engine object file. Append the engine
 				filename, eg ioengine=external:/tmp/foo.o
@@ -1596,12 +1599,13 @@ log_avg_msec=int By default, fio will log an entry in the iops, latency,
 		disk log, that can quickly grow to a very large size. Setting
 		this option makes fio average the each log entry over the
 		specified period of time, reducing the resolution of the log.
-		See log_max as well. Defaults to 0, logging all entries.
+		See log_max_value as well. Defaults to 0, logging all entries.
+
+log_max_value=bool	If log_avg_msec is set, fio logs the average over that
+		window. If you instead want to log the maximum value, set this
+		option to 1. Defaults to 0, meaning that averaged values are
+		logged.
 
-log_max=bool	If log_avg_msec is set, fio logs the average over that window.
-		If you instead want to log the maximum value, set this option
-		to 1. Defaults to 0, meaning that averaged values are logged.
-.
 log_offset=int	If this is set, the iolog options will include the byte
 		offset for the IO entry as well as the other data values.
 
@@ -1887,6 +1891,15 @@ be the starting port number since fio will use a range of ports.
 		1 	  : allocate space immidietly inside defragment event,
 			    and free right after event
 
+[rbd] clustername=str	Specifies the name of the Ceph cluster.
+[rbd] rbdname=str	Specifies the name of the RBD.
+[rbd] pool=str		Specifies the naem of the Ceph pool containing RBD.
+[rbd] clientname=str	Specifies the username (without the 'client.' prefix)
+			used to access the Ceph cluster. If the clustername is
+			specified, the clientmae shall be the full type.id
+			string. If no type. prefix is given, fio will add
+			'client.' by default.
+
 [mtd] skip_bad=bool	Skip operations against known bad blocks.
 
 [libhdfs] hdfsdirectory	libhdfs will create chunk in this HDFS directory
@@ -1987,7 +2000,9 @@ runt=		The runtime of that thread
 cpu=		CPU usage. User and system time, along with the number
 		of context switches this thread went through, usage of
 		system and user time, and finally the number of major
-		and minor page faults.
+		and minor page faults. The CPU utilization numbers are
+		averages for the jobs in that reporting group, while the
+		context and fault counters are summed.
 IO depths=	The distribution of io depths over the job life time. The
 		numbers are divided into powers of 2, so for example the
 		16= entries includes depths up to that value but higher