Add support for runtime log compression
If log_compression=64M is specified, fio will "bite" off chunks of
the IO logs and runtime compress them with zlib. This can greatly
reduce the amount of memory required to do iops/bw/lat logging of
a run, at the cost of using some background CPU for the compression.
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/flist.h b/flist.h
index 8e13041..938ce1d 100644
--- a/flist.h
+++ b/flist.h
@@ -140,6 +140,13 @@
__flist_splice(list, head, head->next);
}
+static inline void flist_splice_tail(struct flist_head *list,
+ struct flist_head *head)
+{
+ if (!flist_empty(list))
+ __flist_splice(list, head->prev, head);
+}
+
static inline void flist_splice_init(struct flist_head *list,
struct flist_head *head)
{