什么时候可以干掉 GIL 啊,场景里同时有 CPU 和 IO 密集,多线程能用多核多好哎! - V2EX
推荐学习书目
Learn Python the Hard Way
Python Sites
PyPI - Python Package Index
http://diveintopython.org/toc/index.html
Pocoo
值得关注的项目
PyPy
Celery
Jinja2
Read the Docs
gevent
pyenv
virtualenv
Stackless Python
Beautiful Soup
结巴中文分词
Green Unicorn
Sentry
Shovel
Pyflakes
pytest
Python 编程
pep8 Checker
Styles
PEP 8
Google Python Style Guide
Code Style from The Hitchhiker's Guide
wuwukai007

什么时候可以干掉 GIL 啊,场景里同时有 CPU 和 IO 密集,多线程能用多核多好哎!

  •  
  •   wuwukai007 Oct 9, 2019 3369 views
    This topic created in 2407 days ago, the information mentioned may be changed or developed.
    8 replies    2019-10-09 23:35:44 +08:00
    wuwukai007
        1
    wuwukai007  
    OP
       Oct 9, 2019
    开个 30 的线程池,开销估计都抵不上一个进程
    lolizeppelin
        2
    lolizeppelin  
       Oct 9, 2019
    有 CPU 密集建议写到 c 里或者换语言
    python 太慢不适合
    yuankui
        3
    yuankui  
       Oct 9, 2019
    gogogo
    haon
        4
    haon  
       Oct 9, 2019
    多进程走起
    retanoj
        5
    retanoj  
       Oct 9, 2019
    多进程啊
    要不就换语言呗
    janxin
        6
    janxin  
       Oct 9, 2019
    www.python.org/dev/peps/pep-0554 参考下这个 PEP 的进度,3.9 会支持多 runtime 的基础模式,按照这个进度,应该是 2-3 个版本可以实现一个进程内的多 runtime 并行执行,也就达到充分利用多核的目的了

    www.youtube.com/watch?v=7RlqbHCCVyc
    wuwukai007
        7
    wuwukai007  
    OP
       Oct 9, 2019
    有些 pandas 做的数据分析的脚本,但是里面读库,在 pandas 操作,我如果开多进程的话,占内存,应为 python 多进程不能共享 DataFrame 对象,Manager 不支持 pandas 对象,所以进程不能多开,如果没有 GIL 的话,我开 30 的线程池,不占内存,有快
    wangyzj
        8
    wangyzj  
       Oct 9, 2019
    为啥非得用一种语言解决
    About     Help     Advertise     Blog     API     FAQ     Solana     5830 Online   Highest 6679       Select Language
    创意工作者们的社区
    World is powered by solitude
    VERSION: 3.9.8.5 63ms UTC 02:48 PVG 10:48 LAX 19:48 JFK 22:48
    Do have faith in what you're doing.
    ubao msn snddm index pchome yahoo rakuten mypaper meadowduck bidyahoo youbao zxmzxm asda bnvcg cvbfg dfscv mmhjk xxddc yybgb zznbn ccubao uaitu acv GXCV ET GDG YH FG BCVB FJFH CBRE CBC GDG ET54 WRWR RWER WREW WRWER RWER SDG EW SF DSFSF fbbs ubao fhd dfg ewr dg df ewwr ewwr et ruyut utut dfg fgd gdfgt etg dfgt dfgd ert4 gd fgg wr 235 wer3 we vsdf sdf gdf ert xcv sdf rwer hfd dfg cvb rwf afb dfh jgh bmn lgh rty gfds cxv xcv xcs vdas fdf fgd cv sdf tert sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf shasha9178 shasha9178 shasha9178 shasha9178 shasha9178 liflif2 liflif2 liflif2 liflif2 liflif2 liblib3 liblib3 liblib3 liblib3 liblib3 zhazha444 zhazha444 zhazha444 zhazha444 zhazha444 dende5 dende denden denden2 denden21 fenfen9 fenf619 fen619 fenfe9 fe619 sdf sdf sdf sdf sdf zhazh90 zhazh0 zhaa50 zha90 zh590 zho zhoz zhozh zhozho zhozho2 lislis lls95 lili95 lils5 liss9 sdf0ty987 sdft876 sdft9876 sdf09876 sd0t9876 sdf0ty98 sdf0976 sdf0ty986 sdf0ty96 sdf0t76 sdf0876 df0ty98 sf0t876 sd0ty76 sdy76 sdf76 sdf0t76 sdf0ty9 sdf0ty98 sdf0ty987 sdf0ty98 sdf6676 sdf876 sd876 sd876 sdf6 sdf6 sdf9876 sdf0t sdf06 sdf0ty9776 sdf0ty9776 sdf0ty76 sdf8876 sdf0t sd6 sdf06 s688876 sd688 sdf86