同步和异步代码
class SyncSleepHandler(RequestHandler): """ 同步的方式,一个延时1s的接口 """ def get(self): time.sleep(1) self.write("when i sleep 5s") class SleepHandler(RequestHandler): """ 异步的延时1秒的接口 """ @tornado.gen.coroutine def get(self): yield tornado.gen.Task( tornado.ioloop.IOLoop.instance().add_timeout, time.time() + 1 ) self.write("when i sleep 5s") |
同步测试结果
? / ab -n 200 -c 40 http://localhost:8009/demo/syncsleep-handler/ This is ApacheBench, Version 2.3 <$Revision: 1528965 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking localhost (be patient) Completed 100 requests Completed 200 requests Finished 200 requests Server Software: TornadoServer/4.2.1 Server Hostname: localhost Server Port: 8009 Document Path: /demo/syncsleep-handler/ Document Length: 15 bytes Concurrency Level: 40 Time taken for tests: 200.746 seconds Complete requests: 200 Failed requests: 0 Total transferred: 42000 bytes HTML transferred: 3000 bytes Requests per second: 1.00 [#/sec] (mean) Time per request: 40149.159 [ms] (mean) Time per request: 1003.729 [ms] (mean, across all concurrent requests) Transfer rate: 0.20 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.2 0 1 Processing: 1005 36235 18692.2 38133 200745 Waiting: 1005 36234 18692.2 38133 200745 Total: 1006 36235 18692.2 38133 200746 Percentage of the requests served within a certain time (ms) 50% 38133 66% 38137 75% 38142 80% 38161 90% 38171 95% 38176 98% 38179 99% 199742 100% 200746 (longest request) |
异步测试结果
? / ab -n 200 -c 40 http://localhost:8009/demo/sleep-handler/ This is ApacheBench, Version 2.3 <$Revision: 1528965 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking localhost (be patient) Completed 100 requests Completed 200 requests Finished 200 requests Server Software: TornadoServer/4.2.1 Server Hostname: localhost Server Port: 8009 Document Path: /demo/sleep-handler/ Document Length: 15 bytes Concurrency Level: 40 Time taken for tests: 5.083 seconds Complete requests: 200 Failed requests: 0 Total transferred: 42000 bytes HTML transferred: 3000 bytes Requests per second: 39.35 [#/sec] (mean) Time per request: 1016.611 [ms] (mean) Time per request: 25.415 [ms] (mean, across all concurrent requests) Transfer rate: 8.07 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.4 0 2 Processing: 1001 1010 12.0 1005 1053 Waiting: 1001 1010 12.0 1005 1053 Total: 1001 1010 12.3 1005 1055 Percentage of the requests served within a certain time (ms) 50% 1005 66% 1009 75% 1011 80% 1015 90% 1032 95% 1044 98% 1045 99% 1054 100% 1055 (longest request) |
