Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. Measuring the speed of time Is there already a microbenchmark for os::javaTimeMillis()? html [unroll the loop]: /blog/2014-04-26/the-noploop-cpu-benchmark.html [unused]: [link] [unused2]: [link] include <sys/time.h>

Speed 40

Speed Java AWS Virtualization 40

Dynatrace

JUNE 27, 2022

Data collected on page load events, for example, can include navigation start (when performance begins to be measured), request start (right before the user makes a request from the server), and speed index metrics (measure page load speed). In some cases, you will lack benchmarking capabilities. RUM generates a lot of data.

Best Practices 172

Best Practices Monitoring Wireless Traffic 172

Adrian Cockcroft

JANUARY 20, 2023

Here’s some predictions I’m making: Jack Dongarra’s efforts to highlight the low efficiency of the HPCG benchmark as an issue will influence the next generation of supercomputer architectures to optimize for sparse matrix computations. In early January a related paper was published by Satoshi Matsuoka et. petaflops, which is 0.8%

Architecture 52

Architecture Latency Benchmarking AWS 52

Percona

JUNE 22, 2023

In this blog, we will explore various MySQL KPIs that are basic and essential to track using monitoring tools like PMM. Query performance Query performance is a key performance indicator (KPI) in MySQL, as it measures the efficiency and speed of query execution. error_log: Specifies the location of the MySQL error log.

Performance 108

Performance Monitoring Traffic Database 108

Percona

MARCH 23, 2023

This blog is in reference to our previous ones for ‘Innodb Performance Optimizations Basics’ 2007 and 2013. Although there have been many blogs about adjusting MySQL variables for better performance since then, I think this topic deserves a blog update since the last update was a decade ago, and MySQL 5.7

Performance 129

Performance Hardware Tuning Storage 129

Alex Russell

JANUARY 30, 2024

HTML, CSS, images, and fonts can all be parsed and run at near wire speeds on low-end hardware, but JavaScript is at least three times more expensive, byte-for-byte. The blog you're reading loads over a single connection in ~1.2 and 75KiB of JavaScript. These are generous targets. You'll have to read on for what it is!

Performance 90

Performance Network Mobile Speed 90

SQL Server According to Bob

SEPTEMBER 26, 2016

Performance issues surrounding Availability Groups typically were related to disk I/O or network speeds. Our customers who deployed Availability Groups were now using servers for primary and secondary replicas with 12+ core sockets and flash storage SSD arrays providing microsecond to low millisecond latencies. one without a replica).

Availability 40

Availability Servers Hardware Benchmarking 40

Smashing Magazine

JANUARY 11, 2021

You need a business stakeholder buy-in, and to get it, you need to establish a case study, or a proof of concept using the Performance API on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Note : If you use Page Speed Insights or Page Speed Insights API (no, it isn’t deprecated!),

Performance 145

Performance Cache Media Metrics 145

The Netflix TechBlog

SEPTEMBER 2, 2020

In an earlier blog post, we discussed Telltale , our health monitoring system. Deriving meaningful value from trace data alone can be challenging, as Cindy Sridharan articulated in this blog post. Telltale provides Edgar with latency benchmarks that indicate if the individual trace’s latency is abnormal for this given service.

Latency 296

Latency Transportation Engineering Traffic 296