lower latency

shadowsocks/eventloop.py

@@ -223,7 +223,7 @@ class EventLoop(object):
                     callback()
                 self._last_time = now
             if events and not handle:
-                time.sleep(0.02)
+                time.sleep(0.001)
 
     def __del__(self):
         self._impl.close()

shadowsocks/tcprelay.py

@@ -97,7 +97,7 @@ UDP_MAX_BUF_SIZE = 65536
 class SpeedTester(object):
     def __init__(self, max_speed = 0):
         self.max_speed = max_speed * 1024
-        self.timeout = 3
+        self.timeout = 5
         self._cache = deque()
         self.sum_len = 0
 
@@ -109,12 +109,12 @@ class SpeedTester(object):
     def isExceed(self):
         if self.max_speed > 0:
             if self.sum_len > 0:
-                if self._cache[0][0] + self.timeout < time.time():
+                cut_t = time.time()
+                t = max(cut_t - self._cache[0][0], 0.01)
+                speed = self.sum_len / t
+                if self._cache[0][0] + self.timeout < cut_t:
                     self.sum_len -= self._cache[0][1]
                     self._cache.popleft()
-            if self.sum_len > 0:
-                t = max(time.time() - self._cache[0][0], 0.1)
-                speed = (self.sum_len - self._cache[0][1]) / (time.time() - self._cache[0][0])
                 return speed >= self.max_speed
         return False