The downside of the bio pcpu cache is that bios of a cpu will be never
freed unless there is new I/O issued from that cpu. We currently keep
max 512 bios, which feels too much, half it.
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
block/bio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/bio.c b/block/bio.c
index d989e45583ac..6277a2f68ab8 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -27,7 +27,7 @@
#define ALLOC_CACHE_THRESHOLD 16
#define ALLOC_CACHE_SLACK 64
-#define ALLOC_CACHE_MAX 512
+#define ALLOC_CACHE_MAX 256
struct bio_alloc_cache {
struct bio *free_list;
--
2.38.0
