path: root/README
diff options
authorJens Axboe <>2016-09-25 13:45:59 -0600
committerJens Axboe <>2016-09-25 13:45:59 -0600
commit52d892b24cbcd887fe30cce96577a067ee171ea0 (patch)
tree0234f9f55757c9669fd99c972f8d5fabca3bd013 /README
parenteb50727a93ce10568973d6fc6b267b966e65b698 (diff)
smalloc: fixup --alloc-size
Signed-off-by: Jens Axboe <>
Diffstat (limited to 'README')
1 files changed, 2 insertions, 2 deletions
diff --git a/README b/README
index 5fa37f3e..a69a5789 100644
--- a/README
+++ b/README
@@ -169,7 +169,7 @@ $ fio
--status-interval=t Force full status dump every 't' period passed
--section=name Only run specified section in job file.
Multiple sections can be specified.
- --alloc-size=kb Set smalloc pool to this size in kb (def 1024)
+ --alloc-size=kb Set smalloc pool to this size in kb (def 16384)
--warnings-fatal Fio parser warnings are fatal
--max-jobs Maximum number of threads/processes to support
--server=args Start backend server. See Client/Server section.
@@ -233,7 +233,7 @@ sections. The reserved 'global' section is always parsed and used.
The --alloc-size switch allows one to use a larger pool size for smalloc.
If running large jobs with randommap enabled, fio can run out of memory.
Smalloc is an internal allocator for shared structures from a fixed size
-memory pool. The pool size defaults to 1024k and can grow to 128 pools.
+memory pool. The pool size defaults to 16M and can grow to 8 pools.
NOTE: While running .fio_smalloc.* backing store files are visible in /tmp.