HOWTO: include note about increasing shared memory limits

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index df79e2dffb3043e771fa437f6f1845b423a41160..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