[Qemu-devel] [PATCH 6/6] coroutine: reduce stack size to 64kB

[Peter Lieven]

evaluation with the recently introduced maximum stack usage monitoring revealed
that the actual used stack size was never above 4kB so allocating 1MB stack
for each coroutine is a lot of wasted memory. So reduce the stack size to
64kB which should still give enough head room.

Signed-off-by: Peter Lieven <address@hidden>
---
 include/qemu/coroutine_int.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/qemu/coroutine_int.h b/include/qemu/coroutine_int.h
index eac323a..f84d777 100644
--- a/include/qemu/coroutine_int.h
+++ b/include/qemu/coroutine_int.h
@@ -28,7 +28,7 @@
 #include "qemu/queue.h"
 #include "qemu/coroutine.h"
 
-#define COROUTINE_STACK_SIZE (1 << 20)
+#define COROUTINE_STACK_SIZE (1 << 16)
 
 typedef enum {
     COROUTINE_YIELD = 1,
-- 
1.9.1