Giter VIP home page Giter VIP logo

Comments (9)

changkun avatar changkun commented on June 18, 2024 1

很有意思。似乎真正的元凶并非 checkdead。
checkdead 会在检查完 m 的数量后直接返回,很少能进入后续的 allgs 检查阶段,对其产生依赖的 sysmon 会保持相对轻量的性能;实际线程的状态也会在运行较为稳定的情况下不会发生太大变化。

相反真正会频繁对 allgs 进行扫描的只有 GC 的 gcResetMarkState。

from blog_comment.

caibirdme avatar caibirdme commented on June 18, 2024

我们去年就发现了,连着压测几次,压测结果一次不如一次…最后换fasthttp了,创建g逻辑动不了,只能在应用层加判断了

from blog_comment.

tiancaiamao avatar tiancaiamao commented on June 18, 2024

给 Go 官方提 issue 吧,应该会处理的

from blog_comment.

cch123 avatar cch123 commented on June 18, 2024

@tiancaiamao
给 Go 官方提 issue 吧,应该会处理的

提啦~
golang/go#34457

from blog_comment.

choleraehyq avatar choleraehyq commented on June 18, 2024

goroutine 池子大法好。我们基本上没有直接用裸的 go func(){} 了

from blog_comment.

cch123 avatar cch123 commented on June 18, 2024

@choleraehyq ,我们这外部服务基本都是 sdk,要是别人在 sdk 里干坏事,挡不住哎

from blog_comment.

cch123 avatar cch123 commented on June 18, 2024

@changkun ,确实实际看 pprof 也是 gc 的成本高了些~

from blog_comment.

contestjia avatar contestjia commented on June 18, 2024

这个在创建线程时不会checkdead吧,貌似是checkmcount

from blog_comment.

cch123 avatar cch123 commented on June 18, 2024

@contestjia ,这里说的确实不严谨,当时看是 templateThread 进来会有一个检查,我简单改一下

from blog_comment.

Related Issues (20)

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.