User-centric performance metrics Stay organized with collections Save and categorize content based on your preferences. We've all heard how important performance is. But when we talk about performance, and about making websites "fast", what specifically do we mean? The truth is that performance is relative: A site might be fast for one user (on a fast network with a powerful device) but slow for a
Custom metrics Stay organized with collections Save and categorize content based on your preferences. Having universal, user-centric metrics that you can measure on any website can be very helpful in understanding how your users experience the web, and in comparing your site to competitors'. However, in many cases, you need to measure more than just the universal metrics to capture the full experi
はじめに平素は大変お世話になっております。 クイックガードのパー子です。 皆様は Cloud Monitoring の Aggregation を活用されていますでしょうか? (昔は Stackdriver Monitoring という名称だったと記憶しているのですが、今は Stackdriver というワードは外されて いますね) 弊社でも GCP を扱う案件は多く、システムの健康状態の把握のために Cloud Monitoring を多用しています。 状況分析や問題の特定のためには適切な Aggregation が欠かせないのですが、Aligner, Reducer, Alignment period など登場人物が多く、なかなか概念を理解しづらいところがあります。 そこで今回は、Aggregation とは何なのか、どんな要素で構成されていて、どんなことができるのかを整理してみました
Incident Metrics in SRE - Google - Site Reliability Engineering Measuring improvements as a result of a process change, product purchase, or a technological change is commonplace. In reliability engineering, statistics such as mean time to recovery (MTTR) or mean time to mitigation (MTTM) are often measured. These statistics are sometimes used to evaluate improvements, or track trends. In this rep
If Engineering at Etsy has a religion, it's the Church of Graphs. If it moves, we track it. Sometimes we'll draw a graph of something that isn't moving yet, just in case it decides to make a run for it. In general, we tend to measure at three levels: network, machine, and application. (You can read more about our graphs in Mike's Tracking Every Release post.) Application metrics are usually the ha
pgmetrics Easily collect and report PostgreSQL metrics for scripting, automation and troubleshooting. pgmetrics is an open-source, zero-dependency, single-binary tool that can collect 350+ metrics from a running PostgreSQL server and display it in easy-to-read text format or export it as JSON and CSV for scripting. Subsystem Info Collects information about WAL archiving, BG writer, backends (waiti
the morning paper a random walk through Computer Science research, by Adrian Colyer Made delightfully fast by strattic Nines are not enough: meaningful metrics for clouds Mogul & Wilkes, HotOS’19 It’s hard to define good SLOs, especially when outcomes aren’t fully under the control of any single party. The authors of today’s paper should know a thing or two about that: Jeffrey Mogul and John Wilke
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