| Message ID | 1474890272-22952-7-git-send-email-pl@kamp.de |
|---|---|
| State | New |
| Headers | show |
diff --git a/include/qemu/coroutine_int.h b/include/qemu/coroutine_int.h index 14d4f1d..be14260 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 61440 typedef enum { COROUTINE_YIELD = 1,
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 60kB which should still give enough head room. The guard page added in qemu_alloc_stack will catch a potential stack overflow introduced by this commit. The 60kB + guard page will result in an allocation of 64kB per coroutine on systems where a page is 4kB. Signed-off-by: Peter Lieven <pl@kamp.de> --- include/qemu/coroutine_int.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)