Add softrandommap and --alloc-size options
The softrandommap job option allows fio to continue if it cannot
allocate from the smalloc backing for the random map. Or the user
can specify --alloc-size with a size larger than the default of 1024k
to increase the size of the shared allocation pool.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/filesetup.c b/filesetup.c
index 6c5770b..b356b44 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -579,6 +579,13 @@
f->num_maps = num_maps;
continue;
}
+ if (!td->o.softrandommap) {
+ log_err("fio: failed allocating random map. If running"
+ " a large number of jobs, try the 'norandommap'"
+ " option or set 'softrandommap'. Or give"
+ " a larger --alloc-size to fio.\n");
+ return 1;
+ }
log_info("fio: file %s failed allocating random map. Running "
"job without.\n", f->file_name);