X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=HOWTO;h=b0d0a1fc6ca7831e30f603d3614398764ca7a61a;hp=8a4e2bde1b7b8a1bd85d1a56dba41eb7d23e1d26;hb=a94eb99a080d01475da47a55de890680d72907b9;hpb=80666bece308842c36132245e4cbbe9eb0bc506b

diff --git a/HOWTO b/HOWTO
index 8a4e2bde..b0d0a1fc 100644
--- a/HOWTO
+++ b/HOWTO
@@ -602,6 +602,16 @@ ioengine=str	Defines how the job issues io to the file. The following
 				channel semantics (Send/Recv) for the
 				InfiniBand, RoCE and iWARP protocols.
 
+			falloc   IO engine that does regular fallocate to
+				 simulate data transfer as fio ioengine.
+				 DDIR_READ  does fallocate(,mode = keep_size,)
+				 DDIR_WRITE does fallocate(,mode = 0)
+				 DDIR_TRIM  does fallocate(,mode = punch_hole)
+
+			e4defrag IO engine that does regular EXT4_IOC_MOVE_EXT
+				 ioctls to simulate defragment activity in
+				 request to DDIR_WRITE event
+
 			external Prefix to specify loading an external
 				IO engine object file. Append the engine
 				filename, eg ioengine=external:/tmp/foo.o
@@ -1232,6 +1242,19 @@ continue_on_error=str	Normally fio will exit the job on the first observed
 
 			1		Backward-compatible alias for 'all'.
 
+ignore_error=str Sometimes you want to ignore some errors during test
+		 in that case you can specify error list for each error type.
+		 ignore_error=READ_ERR_LIST,WRITE_ERR_LIST,VERIFY_ERR_LIST
+		 errors for given error type is separated with ':'. Error
+		 may be symbol ('ENOSPC', 'ENOMEM') or integer.
+		 Example:
+			ignore_error=EAGAIN,ENOSPC:122
+		 This option will ignore EAGAIN from READ, and ENOSPC and 
+		 122(EDQUOT) from WRITE. 
+
+error_dump=bool If set dump every error even if it is non fatal, true
+		by default. If disabled only fatal error will be dumped
+				 
 cgroup=str	Add job to this control group. If it doesn't exist, it will
 		be created. The system must have a mounted cgroup blkio
 		mount point for this to work. If your system doesn't have it
@@ -1315,6 +1338,14 @@ that defines them is selected.
 [net] listen	For TCP network connections, tell fio to listen for incoming
 		connections rather than initiating an outgoing connection. The
 		hostname must be omitted if this option is used.
+[e4defrag] donorname=str
+	        File will be used as a block donor(swap extents between files)
+[e4defrag] inplace=int
+		Configure donor file blocks allocation strategy		
+		0(default): Preallocate donor's file on init
+		1 	  : allocate space immidietly inside defragment event,
+			    and free right after event
+
 
 
 6.0 Interpreting the output