engines/windowsaio: style

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 8fad2ce6f4d889e8de2013391ee1dad00787681d..d3f957bf4db7ecdeab63bfc5f38bbbd8150881be 100644 (file)
--- 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
 
@@ -1797,6 +1800,10 @@ I/O engine
                        absolute or relative. See :file:`engines/skeleton_external.c` for
                        details of writing an external I/O engine.
 
+               **filecreate**
+                       Simply create the files and do no IO to them.  You still need to
+                       set  `filesize` so that all the accounting still occurs, but no
+                       actual IO will be done other than creating the file.
 
 I/O engine specific parameters
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~