X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=HOWTO;h=a1513e1259f7cc3001fb185a662150a9527dba34;hp=df79e2dffb3043e771fa437f6f1845b423a41160;hb=645943c03a60a61fc2494480cde1f051f8a14111;hpb=1216cc5ad4701c001dc75fb86ae07f2c0f19df4c

diff --git a/HOWTO b/HOWTO
index df79e2df..a1513e12 100644
--- a/HOWTO
+++ b/HOWTO
@@ -217,6 +217,9 @@ Command line options
 .. option:: --max-jobs=nr
 
 	Set the maximum number of threads/processes to support to `nr`.
+	NOTE: On Linux, it may be necessary to increase the shared-memory
+	limit ('/proc/sys/kernel/shmmax') if fio runs into errors while
+	creating jobs.
 
 .. option:: --server=args
 
@@ -792,6 +795,13 @@ Target file/device
 	named :file:`testfiles.4`. The default of :file:`$jobname.$jobnum.$filenum`
 	will be used if no other format specifier is given.
 
+	If you specify a path then the directories will be created up to the
+	main directory for the file.  So for example if you specify
+	``filename_format=a/b/c/$jobnum`` then the directories a/b/c will be
+	created before the file setup part of the job.  If you specify
+	:option:`directory` then the path will be relative that directory,
+	otherwise it is treated as the absolute path.
+
 .. option:: unique_filename=bool
 
 	To avoid collisions between networked clients, fio defaults to prefixing any