golang - 随笔分类(第10页) - papering

go 优化技巧 Go GC 性能优化在运行的时候增加 GODEBUG=gctrace=1 的环境变量，让 Golang runtime 在每次 GC 时往 stderr 输出信息；

摘要：小结：【CPU热点】go tool pprof -seconds 30 https://<测试域名>/debug/pprof/profile【内存分配】go tool pprof -seconds 30 https://<测试域名>/debug/pprof/allocs 采样依据sample_in 阅读全文

posted @ 2021-08-31 09:33 papering 阅读(901) 评论(0) 推荐(0)

内存泄漏，8次goroutine泄漏，1次真正内存泄漏

摘要：golang：快来抓住让我内存泄漏的“真凶”！ https://mp.weixin.qq.com/s/FyHEiaa-UfyLStMKl2VFGA 原创李卓奕云加社区 2021-08-30 导语 | 有句话说得好：“golang10次内存泄漏，8次goroutine泄漏，1次真正内存泄漏”，那还阅读全文

posted @ 2021-08-31 09:27 papering 阅读(1271) 评论(0) 推荐(0)

短视频go研发框架实践

摘要：短视频go研发框架实践原创 ma78794656 百度Geek说 2021-08-18 18:09 短视频go研发框架实践 https://mp.weixin.qq.com/s/JdBjyb95U_oijYoszJubEw 导读：hulk是短视频研发部研发的基于GDP2（Go Develop Pl 阅读全文

posted @ 2021-08-20 17:21 papering 阅读(1230) 评论(0) 推荐(0)

defer 具名匿名汇编 objdump

摘要：func increaseA() int { var i int defer func() { i += 256 }() return i } func increaseB() (r int) { defer func() { r += 256 }() return r } func increas 阅读全文

posted @ 2021-08-09 16:50 papering 阅读(42) 评论(0) 推荐(0)

Go 为什么这么“快”？

摘要：Go 为什么这么“快”？ https://mp.weixin.qq.com/s/CCU5b-9RFwsjdZQ4hugIgA https://mp.weixin.qq.com/s/CCU5b-9RFwsjdZQ4hugIgA https://mp.weixin.qq.com/s/CCU5b-9RFw 阅读全文

posted @ 2021-08-02 23:04 papering 阅读(84) 评论(0) 推荐(0)

订阅普通消息无缓冲的channel

摘要：收发普通消息 - 消息队列RocketMQ版 - 阿里云 https://help.aliyun.com/document_detail/255809.html package main import ( "fmt" "github.com/gogap/errors" "strings" "time 阅读全文

posted @ 2021-07-29 17:05 papering 阅读(110) 评论(0) 推荐(0)

按值传递

摘要：There is no pass-by-reference in Go – The acme of foolishness https://dave.cheney.net/2017/04/29/there-is-no-pass-by-reference-in-go If a map isn’t a 阅读全文

posted @ 2021-07-09 16:41 papering 阅读(48) 评论(0) 推荐(0)

segmentation violation code=0x1

摘要：panic: runtime error: invalid memory address or nil pointer dereference11:04:55 BizDomain | [signal SIGSEGV: segmentation violation code=0x1 addr=0x28 阅读全文

posted @ 2021-07-01 11:08 papering 阅读(715) 评论(0) 推荐(0)

计时器海量定时/延迟任务

摘要：6.11 计时器 | Go 语言原本 https://golang.design/under-the-hood/zh-cn/part2runtime/ch06sched/timer/ https://mp.weixin.qq.com/s/tkm9nYcyUxE2vUbplSO-pA Go-Zero如阅读全文

posted @ 2021-06-15 10:58 papering 阅读(187) 评论(0) 推荐(0)

上下文延时任务变量传递

摘要：ctx = context.WithValue(ctx, "2", "two") fmt.Println(ctx.Value("1")) fmt.Println(ctx.Value("2")) 阅读全文

posted @ 2021-06-11 23:01 papering 阅读(46) 评论(0) 推荐(0)

在结构体嵌入接口

摘要：type reverse struct { // This embedded Interface permits Reverse to use the methods of // another Interface implementation. Interface} // Package sort 阅读全文

posted @ 2021-06-08 21:05 papering 阅读(82) 评论(0) 推荐(0)

Modification should be made to copies of the returned MD.

摘要：C:/Go/pkg/mod/google.golang.org/grpc@v1.29.1/metadata/metadata.go:180 // FromOutgoingContextRaw returns the un-merged, intermediary contents// of rawM 阅读全文

posted @ 2021-06-08 14:24 papering 阅读(69) 评论(0) 推荐(0)

Go中内存分配源码实现

摘要：https://mp.weixin.qq.com/s/_SYT7zWqvFnfH02cHFOgow 阅读全文

posted @ 2021-06-04 23:53 papering 阅读(64) 评论(0) 推荐(0)

【Golang】图解函数调用栈

摘要：https://mp.weixin.qq.com/s/zcqzarXMJrDUY5DLXZXY1Q 【Golang】图解函数调用栈原创封幼麟幼麟实验室 2020-07-20 阅读全文

posted @ 2021-05-26 22:57 papering 阅读(201) 评论(0) 推荐(0)

goroutine、panic和recover

摘要：https://mp.weixin.qq.com/s/HGfRRO1Acz-sVe_vLau2FA 初学Go语言时常见的小坑：goroutine、panic和recover 原创博文视点博文视点Broadview 2020-07-23 阅读全文

posted @ 2021-05-19 00:21 papering 阅读(88) 评论(0) 推荐(0)

go mod replace

摘要：Introduction to Go Modules – Roberto Selbach https://roberto.selbach.dev/intro-to-go-modules/ go mod使用 - 简书 https://www.jianshu.com/p/760c97ff644c 一个包阅读全文

posted @ 2021-04-30 11:31 papering 阅读(3145) 评论(0) 推荐(0)

Linters

摘要：Linters | golangci-lint https://golangci-lint.run/usage/linters/ 阅读全文

posted @ 2021-04-28 20:21 papering 阅读(62) 评论(0) 推荐(0)

CodeReviewComments

摘要：https://github.com/golang/go/wiki/CodeReviewComments#interfaces 阅读全文

posted @ 2021-04-24 00:07 papering 阅读(65) 评论(0) 推荐(0)

Go 异步抢占

摘要：https://mp.weixin.qq.com/s/NIYxzycAqHzeVSgU7ixhNg 代码会死循环吗？Go 异步抢占 GCTT:lxbwolf Go语言中文网 2021-04-21 Go: Goroutine and Preemption. ℹ️ This article is bas 阅读全文

posted @ 2021-04-22 00:35 papering 阅读(614) 评论(0) 推荐(0)

切片零值浅拷贝泄露扩容

摘要：实践： 1、 type T struct { A string B []string C bool D map[string]string E map[string][]string } t1 := T{"a1", []string{"s1"}, true, map[string]string{"m 阅读全文

posted @ 2021-03-31 22:58 papering 阅读(56) 评论(0) 推荐(0)

papering

随笔分类 - golang