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Bandwidth or Latency: When to Optimise for Which

CSS Wizardry

When it comes to network performance, there are two main limiting factors that will slow you down: bandwidth and latency. Generally speaking, increased bandwidth is only particularly useful when you’re transferring or downloading large files. Latency is defined as…. and reduction in latency. and reduction in latency.

Latency 133
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The Three Cs: Concatenate, Compress, Cache

CSS Wizardry

Concatenating our files on the server: Are we going to send many smaller files, or are we going to send one monolithic file? This gave rise to heavy bundling and concatenation—why download three CSS files (half of our budget) if we could compress them into one? 4,362ms of cumulative latency; 240ms of cumulative download.

Cache 291
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Benchmark (YCSB) numbers for Redis, MongoDB, Couchbase2, Yugabyte and BangDB

High Scalability

Redis Server: 5.07, x86/64. MongoDB server: 4.4.2, BangDB server: 2.0.0, We note that for MongoDB update latency is really very low (low is better) compared to other dbs, however the read latency is on the higher side. Again Yugabyte latency is quite high. The latency table for test D is as below.

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Site reliability done right: 5 SRE best practices that deliver on business objectives

Dynatrace

At the lowest level, SLIs provide a view of service availability, latency, performance, and capacity across systems. It detects regressions and deviations from previously observed behavior across metrics such as latency, traffic, error rates, saturation, security coverage, vulnerability risk levels, and memory consumption.

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Rethinking Server-Timing As A Critical Monitoring Tool

Smashing Magazine

Rethinking Server-Timing As A Critical Monitoring Tool. Rethinking Server-Timing As A Critical Monitoring Tool. In the world of HTTP Headers, there is one header that I believe deserves more air-time and that is the Server-Timing header. Setting Server-Timing. Sean Roberts. 2022-05-16T10:00:00+00:00.

Servers 93
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Cache-Control for Civilians

CSS Wizardry

This includes CDNs, proxy servers, and the like. Once the 60 seconds is up, the browser will head back to the server to revalidate the file. It means ‘do no t serve a copy from cache until you’ve revalidated it with the server and the server said you can use the cached copy’. public and private. Cache-Control: no-cache.

Cache 264
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DevOps automation: From event-driven automation to answer-driven automation [with causal AI]

Dynatrace

When a server experiences an outage, the system promptly triggers an alert and initiates actions like restarting a server or redirecting traffic to a redundant server. Using advanced causal AI and context-aware decision-making, it identifies the root cause behind server failures. Download the free 2023 CIO Report.

DevOps 228