X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=HOWTO;h=1c89d75f29cf6a01264d9f6dbbaaefc9b529a9e8;hp=7db7b8929a21a46b971bb9a45f5a774e721f96a1;hb=1b4f8c7f78793428084688f27a412139b259972b;hpb=3d434057fd4c20c2b1216d9696c4fed9f7d8c4dd

diff --git a/HOWTO b/HOWTO
index 7db7b892..1c89d75f 100644
--- a/HOWTO
+++ b/HOWTO
@@ -430,6 +430,14 @@ size=int	The total size of file io for this job. Fio will run until
 		is given, fio will use 20% of the full size of the given
 		files or devices.
 
+io_limit=int	Normally fio operates within the region set by 'size', which
+		means that the 'size' option sets both the region and size of
+		IO to be performed. Sometimes that is not what you want. With
+		this option, it is possible to define just the amount of IO
+		that fio should do. For instance, if 'size' is set to 20G and
+		'io_limit' is set to 5G, fio will perform IO within the first
+		20G but exit when 5G have been done.
+
 filesize=int	Individual file sizes. May be a range, in which case fio
 		will select sizes for files at random within the given range
 		and limited to 'size' in total (if that is given). If not
@@ -1505,6 +1513,8 @@ that defines them is selected.
 [cpu] cpuchunks=int Split the load into cycles of the given time. In
 		microseconds.
 
+[cpu] exit_on_io_done=bool Detect when IO threads are done, then exit.
+
 [netsplice] hostname=str
 [net] hostname=str The host name or IP address to use for TCP or UDP based IO.
 		If the job is a TCP listener or UDP reader, the hostname is not