python主流web框架性能测评 django/flask/bottle/tornado

django、flask、bottle 均使用gunicorn+gevent启动，单进程，并且关闭DEBUG，请求均只返回一个字符串ok。

tornado直接自己启动，其他内容一致。

测试软件为 siege，测试os为cenos6 64位，测试命令为:

siege -c 100 -r 100 -b http://127.0.0.1:5000/

siege -c 100 -r 100 -b http://127.0.0.1:5000/

django测试结果为:

Transactions:               10000 hits
Availability:              100.00 %
Elapsed time:               18.51 secs
Data transferred:            0.02 MB
Response time:                0.18 secs
Transaction rate:          540.25 trans/sec
Throughput:                0.00 MB/sec
Concurrency:               99.35
Successful transactions:       10000
Failed transactions:               0
Longest transaction:            0.30
Shortest transaction:            0.12

django(去掉所有middleware)测试结果为:

Transactions:               10000 hits
Availability:              100.00 %
Elapsed time:               12.97 secs
Data transferred:            0.02 MB
Response time:                0.13 secs
Transaction rate:          771.01 trans/sec
Throughput:                0.00 MB/sec
Concurrency:               99.41
Successful transactions:       10000
Failed transactions:               0
Longest transaction:            0.28
Shortest transaction:            0.12

flask测试结果为:

Transactions:               10000 hits
Availability:              100.00 %
Elapsed time:                5.47 secs
Data transferred:            0.02 MB
Response time:                0.05 secs
Transaction rate:         1828.15 trans/sec
Throughput:                0.00 MB/sec
Concurrency:               96.25
Successful transactions:       10000
Failed transactions:               0
Longest transaction:            0.11
Shortest transaction:            0.00

bottle测试结果为:

Transactions:               10000 hits
Availability:              100.00 %
Elapsed time:                4.55 secs
Data transferred:            0.02 MB
Response time:                0.04 secs
Transaction rate:         2197.80 trans/sec
Throughput:                0.00 MB/sec
Concurrency:               96.81
Successful transactions:       10000
Failed transactions:               0
Longest transaction:            0.09
Shortest transaction:            0.00

tornado测试结果为:

Transactions:               10000 hits
Availability:              100.00 %
Elapsed time:                7.06 secs
Data transferred:            0.02 MB
Response time:                0.07 secs
Transaction rate:         1416.43 trans/sec
Throughput:                0.00 MB/sec
Concurrency:               99.51
Successful transactions:       10000
Failed transactions:               0
Longest transaction:            0.09
Shortest transaction:            0.01

可见纯框架自身的性能为:

    bottle > flask > tornado > django

结合实际使用:

    tornado 使用了异步驱动，所以在写业务代码时如果稍有同步耗时性能就会急剧下降；
    bottle需要自己实现的东西太多，加上之后不知道性能会怎样；
    flask性能稍微差点，但周边的支持已经很丰富了；
    django就不说了，性能已经没法看了，唯一的好处就是开发的架子都已经搭好，开发速度快很多

因为最近正在为一个项目选型发愁，所以就测了一下，记录在此吧。