The Morning Paper

SEPTEMBER 5, 2019

For response times (latencies) reporting a simple metric such as ‘average’ is next to useless. Instead we want to understand what’s happening at different latency percentiles (e.g A characteristic of latency distributions is that they have a long tail. Why do we need a new sketch? range, and that it has no published guarantees.

Latency 52

Latency Metrics Open Source Java 52

VoltDB

JUNE 1, 2017

Earlier this month I spent a week at the OpenStack conference. But once you realize that there are, in fact, several OpenStack conferences happening at the same time and place, it makes more sense. But once you realize that there are, in fact, several OpenStack conferences happening at the same time and place, it makes more sense.

Hardware 56

Hardware Latency Virtualization Cloud 56

VoltDB

JUNE 1, 2017

Earlier this month I spent a week at the OpenStack conference. But once you realize that there are, in fact, several OpenStack conferences happening at the same time and place, it makes more sense. But once you realize that there are, in fact, several OpenStack conferences happening at the same time and place, it makes more sense.

Hardware 40

Hardware Latency Virtualization Cloud 40

Speed Curve

SEPTEMBER 4, 2013

It's an overview of why front-end performance matter, how to monitor it and the challenges faced when building for an increasingly mobile world. The network constraints and what makes the web slow? Bandwidth, latency and it's fundamental impact on the speed of the web. Performance Tools. Performance Checklists.

Speed 40

Speed Benchmarking Latency Mobile 40

The Netflix TechBlog

NOVEMBER 3, 2022

In that scenario, the system would need to deal with the data propagation latency directly, for example, by use of timeouts or client-originated update tracking mechanisms. We started seeing increased response latencies and leader servers running at dangerously high utilization.

Cache 224

Cache Latency Traffic Systems 224

Sutter's Mill

FEBRUARY 13, 2017

Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). On April 25-27, I’ll be in Stockholm (Kista) giving a three-day seminar on “High-Performance and Low-Latency C++.” Here is the summary, below; for a more detailed topic breakdown see the link above. Description.

Latency 51

Latency C++ Hardware Performance 51

Smashing Magazine

AUGUST 22, 2021

HTTP/3: Performance Improvements (Part 2). HTTP/3: Performance Improvements (Part 2). In this second part, we will zoom in on the performance improvements that QUIC and HTTP/3 bring to the table for web-page loading. HTTP/3 performance features ( current article ). Robin Marx. 2021-08-23T06:20:00+00:00.

Performance 105

Performance Network Latency Servers 105

The Netflix TechBlog

FEBRUARY 9, 2021

A few years ago, we decided to address this complexity by spinning up a new initiative, and eventually a new team, to move the complex handling of user and device authentication, and various security protocols and tokens, to the edge of the network, managed by a set of centralized services, and a single team.

Architecture 221

Architecture Latency Servers Website 221

Adrian Cockcroft

JANUARY 20, 2023

on Myths and Legends of High Performance Computing  — it’s a somewhat light-hearted look at some of the same issues by the leader of the team that built the Fugaku system I mention below. The emergence of chiplet technology also allows higher performance and integration without having to design every chip from scratch.

Architecture 52

Architecture Latency Benchmarking AWS 52

All Things Distributed

OCTOBER 2, 2017

We were pushing the limits of what was a leading commercial database at the time and were unable to sustain the availability, scalability and performance needs that our growing Amazon business demanded. Performant – The service would need to be able to maintain consistent performance in the face of diverse customer workloads.

Internet 128

Internet Internet AWS Performance 128

The Morning Paper

DECEMBER 8, 2019

At the start of November I was privileged to attend HPTS (the High Performance Transaction Systems) conference in Asilomar. On the last morning of the conference Daniel Bittman presented some of the work being done in the context of the Twizzler OS project to explore new programming models for NVM. Early performance results.

Hardware 56

Hardware Programming Media Storage 56

Smashing Magazine

AUGUST 9, 2021

You may have read some blog posts or heard conference talks on this topic and think you know the answers. Often they make it seem as if HTTP/3 is a revolution in performance, while it is really a more modest (yet still useful!) HTTP/3 performance features ( coming up soon! ). Robin Marx. 2021-08-09T11:00:00+00:00.

Transportation 145

Transportation Internet Internet Network 145

Brendan Gregg

SEPTEMBER 5, 2017

Here's some output from my zfsdist tool, in bcc/BPF, which measures ZFS latency as a histogram on Linux: # zfsdist. Tracing ZFS operation latency. As a performance engineer who does kernel tracing, I find the lack of an ID I can trace in the kernel to be pretty annoying. Hit Ctrl-C to end. ^C People rarely create them manually.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Adrian Cockcroft

NOVEMBER 11, 2019

It would take 5–10 minutes after the problem occurred to appear as a problem, then people have to notice and respond to emails or pager text messages, dial into a conference call, and log in to monitoring dashboards before any human response can start. Try to measure your mean time to respond (MTTR) for incidents.

Latency 52

Latency Engineering Systems Hardware 52

Adrian Cockcroft

NOVEMBER 11, 2019

It would take 5–10 minutes after the problem occurred to appear as a problem, then people have to notice and respond to emails or pager text messages, dial into a conference call, and log in to monitoring dashboards before any human response can start. Try to measure your mean time to respond (MTTR) for incidents.

Latency 53

Latency Engineering Systems Hardware 53