SLA

https://www.site24x7.com/zhcn/tools/sla-uptime.html
https://git.yimeng.ch/post/2020/monitor-metric/
https://www.infoq.cn/article/monitoring-SRE-golden-signals
https://time.geekbang.org/column/article/5670
https://git.yimeng.ch/post/2020/monitor-metric/#:~:text=SRE黄金指标 ,%E6%AD%A4%E6%96%B9%E6%B3%95%E4%B8%8ERED%E6%96%B9%E6%B3%95%E7%9B%B8%E4%BC%BC%EF%BC%8C%E4%BD%86%E5%8C%85%E5%90%AB%E9%A5%B1%E5%92%8C%E5%BA%A6%E3%80%82%20%E5%BB%B6%E8%BF%9F%EF%BC%88Latency%EF%BC%89%EF%BC%9A%E5%A4%84%E7%90%86%E8%AF%B7%E6%B1%82%E6%89%80%E9%9C%80%E7%9A%84%E6%97%B6%E9%97%B4