add perf test driver

[nbds] / runtime / lwt.c

diff --git a/runtime/lwt.c b/runtime/lwt.c
index c25fd95d5048626c07a497052cceaa0e6141960c..a986567bcb05023f8e6bafb541035fe5266f9900 100644 (file)
--- a/runtime/lwt.c
+++ b/runtime/lwt.c
@@ -10,8 +10,8 @@
 #include "lwt.h"
 #include "mem.h"
 
-#define LWT_BUFFER_SCALE 16
-#define LWT_BUFFER_SIZE (1 << LWT_BUFFER_SCALE)
+#define LWT_BUFFER_SCALE 20
+#define LWT_BUFFER_SIZE (1ULL << LWT_BUFFER_SCALE)
 #define LWT_BUFFER_MASK (LWT_BUFFER_SIZE - 1)
 
 volatile int halt_ = 0;