同时抓取 10 个网站的网页,是用 multithread 还是 multiprocess? - V2EX
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leafonsword

同时抓取 10 个网站的网页,是用 multithread 还是 multiprocess?

  •  
  •   leafonsword
    leafonsword Jul 24, 2014 4978 views
    This topic created in 4307 days ago, the information mentioned may be changed or developed.
    循环10次太慢了,我想同时进行,我也知道multithread有GIL锁,所以multiprocess貌似是不错选择?
    我还听说过一些其他高并发项目,如:gevent、stackless、pypy,这些和官方多进程有何区别?
    11 replies    2014-07-25 11:25:11 +08:00
    wy315700
        1
    wy315700  
       Jul 24, 2014   1
    multiprocess + pool 比较好

    multithread + gevent也可以
    heiher
        2
    heiher  
       Jul 24, 2014 via iPhone   3
    线程用来使用cpu资源的,像这种基本就是I/O为主,使用异步I/O不就好了。
    binux
        3
    binux  
       Jul 24, 2014
    GIL锁是锁语句执行的,IO等待又不会被锁
    bigdude
        4
    bigdude  
       Jul 24, 2014
    gevent
    ffffwh
        5
    ffffwh  
       Jul 24, 2014
    异步+1
    C0VN
        6
    C0VN  
       Jul 24, 2014
    我之前测试的时候,threading比gevent快耶。
    pandada8
        7
    pandada8  
       Jul 24, 2014 via Android
    处理速度永远大于你的抓取速度
    withrock
        8
    withrock  
       Jul 25, 2014
    我之前写过抓取糗事百科的虫,我的CPU有4个核,用threading的话,CPU的使用率不会超过25%。
    Zuckonit
        9
    Zuckonit  
       Jul 25, 2014
    gevent吧
    kingxsp
        10
    kingxsp  
       Jul 25, 2014
    gevent 或者 asyncio
    lianghui
        11
    lianghui  
       Jul 25, 2014
    prefork span with multithread
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