Sutter's Mill

FEBRUARY 12, 2024

Because “high-performance low-latency” is kind of C++’s bailiwick, and because it’s my course, you’ll be unsurprised to learn that the topics and code focus on C++ and include coverage of modern C++17/20/23 features. Presented by Alfasoft.

C++ 40

C++ Latency Code Technology 40

CSS Wizardry

MAY 19, 2020

With more standardised FOUT/FOIT behaviour from browser vendors, to the newer font-display specification, performance—and therefore the user—seems to have been finally been put front-and-centre. On this site, in which performance is the only name of the game, I forgo web fonts entirely, opting instead to make use of the visitor’s system font.

Google 364

Google Media Latency Metrics 364

The Morning Paper

JANUARY 30, 2020

Edge servers are the middle ground – more compute power than a mobile device, but with latency of just a few ms. The client MWW combines these estimates with an estimate of the input/output transmission time (latency) to find the worker with the minimum overall execution latency. Is the migration worth it though?

Mobile 104

Mobile Cloud Latency Games 104

CSS Wizardry

OCTOBER 16, 2023

When serving and storing files on the web, there are a number of different things we need to take into consideration in order to balance ergonomics, performance, and effectiveness. Plotted on the same horizontal axis of 1.6s, the waterfalls speak for themselves: 201ms of cumulative latency; 109ms of cumulative download. It gets worse.

Cache 291

Cache Latency Strategy Speed 291

Scalegrid

JUNE 4, 2020

In this post, we are going to compare the performance and pricing of DigitalOcean PostgreSQL vs. ScaleGrid PostgreSQL to help you determine the best PostgreSQL hosting service on DigitalOcean. Compare Latency. lower latency compared to DigitalOcean for PostgreSQL. PostgreSQL DigitalOcean Performance Test. Compare Pricing.

Database 230

Database Latency Benchmarking Performance 230

Scalegrid

MARCH 28, 2024

In this comparison of Redis vs Memcached, we strip away the complexity, focusing on each in-memory data store’s performance, scalability, and unique features. Redis and Memcached both provide high performance with sub-millisecond response times. Managed DBaaS solutions like ScaleGrid.io

Cache 130

Cache Storage Scalability Architecture 130

The Netflix TechBlog

JUNE 13, 2023

A small percentage of production traffic is redirected to the two new clusters, allowing us to monitor the new version’s performance and compare it against the current version. Canaries also provide an opportunity to measure system performance under different load conditions, allowing us to identify and resolve any performance bottlenecks.

Traffic 279

Traffic Metrics Systems Strategy 279

HammerDB

OCTOBER 23, 2023

However, with more complex application logic this network round trip soon becomes a key focus area for improving performance. Stored Procedures and Client SQL comparison To test the stored procedures and client implementations, we ran both workloads against a system equipped with Intel Xeon 8280L. performance advantage.

Benchmarking 62

Benchmarking Database Network C++ 62

The Morning Paper

AUGUST 29, 2019

InS does now offer an NVMe variant too, and the authors perform limited testing on that as well. For query executors that can be frequently started and stopped the authors explore performance with cold and warm caches (where applicable), and also the horizontal and vertical scaling performance. Query performance.

Architecture 76

Architecture Cloud Storage Serverless 76

Percona

MARCH 20, 2023

Let us take a look also the latency: Here the situation starts to be a little bit more complicated. MySQL Router is the one that has the higher latency no matter what. HAProxy performs better with a low number of connections, while ProxySQL performs better when a high number of connections is in place. and ProxySQL 6.6k.

Games 118

Games Latency Traffic Cache 118

Brendan Gregg

OCTOBER 8, 2018

Screenshot: tracing read latency for PID 181: # bpftrace -e 'kprobe:vfs_read /pid == 30153/ { @start[tid] = nsecs; } kretprobe:vfs_read /@start[tid]/ { @ns = hist(nsecs - @start[tid]); delete(@start[tid]); }'. Here's a comparison for an average-sized DTraceToolkit script (seeksize.d) It's shaping up to be a DTrace version 2.0:

C++ 110

C++ Virtualization Programming Latency 110

The Morning Paper

SEPTEMBER 8, 2019

The authors also observed explicit sampling jobs that perform some complex and detailed computation on a sampled relation, without ever correcting for the effect of sampling. Hence, query optimizer transformations which push samplers down without affecting plan accuracy can improve performance. Of the other 14 all but one improve.

Big Data 57

Big Data Analytics Latency Azure 57

The Netflix TechBlog

JANUARY 24, 2022

To that end, it’s important that we prevent significant performance regressions from reaching the production app. Any performance regression that makes it into a product release will degrade user experience, so the challenge is to detect and fix such regressions before they ship. What do we mean by Performance?

Performance 199

Performance Metrics Performance Testing Testing 199

Dynatrace

FEBRUARY 15, 2023

SREs use Service-Level Indicators (SLI) to see the complete picture of service availability, latency, performance, and capacity across various systems, especially revenue-critical systems. Davis will also assist Site Reliability Guardian in recommending relevant objectives and baselines for comparison.

DevOps 224

DevOps Latency Traffic Best Practices 224

Testsigma

JANUARY 30, 2021

The native and mobile web browser testing is being performed more and more compared to desktop testing. The graph below shows the result of a survey performed by Statistica in 2020 on the increase of usage of mobile data across years. Perform testing on browsers that are not frequently used by users.

Mobile 52

Mobile Testing Website Internet 52

Percona

DECEMBER 11, 2023

A quick configuration change may do the trick in improving the performance of your AWS RDS for MySQL instance. Here, we will discuss a notable new feature in Amazon RDS, the Dedicated Log Volume (DLV), that has been introduced to boost database performance. Who can benefit from DLV? 2xlarge c5.2xlarge MySQL 8.0.31

AWS 93

AWS Benchmarking Performance Traffic 93

The Netflix TechBlog

FEBRUARY 20, 2019

by Jason Koch , with Martin Spier , Brendan Gregg , Ed Hunter Improving the tools available to our engineers to help them diagnose, triage, and work through software performance challenges in the cloud is a key goal for the cloud performance engineering team at Netflix. to the broader community. Charts are now resizable and movable.

Performance 211

Performance Latency Open Source Metrics 211

KeyCDN

SEPTEMBER 12, 2019

We normally focus solely on the performance aspect, but today we want to dive into additional ways you can optimize images for the web. The file size of your images of course is very important, but SEO and social media also play an important part in helping your website perform and convert better.

Social Media 106

Social Media Media Google Website 106

Dynatrace

SEPTEMBER 25, 2019

Platform performance —get visibility into the performance of the Citrix platform to optimize application delivery. Dynatrace Extension: SAP ABAP platform performance. Dynatrace Extension: database performance as experienced by the SAP ABAP server. Synthetic monitoring: Citrix login availability and performance.

Latency 118

Latency Performance Virtualization Infrastructure 118

CSS - Tricks

MARCH 16, 2020

to run Google Lighthouse audits via the command line, save the reports they generate in JSON format and then compare them so web performance can be monitored as the website grows and develops. These are: Performance Accessibility Best Practices SEO Progressive Web App. Here’s what a full report looks like. Let’s find out how.

Google 82

Google Latency Website Metrics 82

Alex Russell

MAY 9, 2022

Despite advances in browser tooling , automated evaluation , lab tools , guidance , and runtimes , however, teams struggle to deliver even decent performance with today's popular frameworks. What is Performance? It may seem a silly question, but what is performance, exactly?

Performance 86

Performance Latency Metrics Engineering 86

IO River

NOVEMBER 2, 2023

They need to deliver impeccable performance without breaking the bank.According to recent industry statistics, global streaming has seen an uptick of 30% in the past year, underscoring the importance of efficient CDN architecture strategies. HLS ensures users get the optimal video quality based on their internet performance.

Architecture 52

Architecture Performance Internet Internet 52

IO River

NOVEMBER 2, 2023

They need to deliver impeccable performance without breaking the bank.According to recent industry statistics, global streaming has seen an uptick of 30% in the past year, underscoring the importance of efficient CDN architecture strategies. HLS ensures users get the optimal video quality based on their internet performance.

Architecture 52

Architecture Performance Internet Internet 52

Brendan Gregg

OCTOBER 7, 2018

Screenshot: tracing read latency for PID 181: # bpftrace -e 'kprobe:vfs_read /pid == 30153/ { @start[tid] = nsecs; } kretprobe:vfs_read /@start[tid]/ { @ns = hist(nsecs - @start[tid]); delete(@start[tid]); }'. Here's a comparison for an average-sized DTraceToolkit script (seeksize.d) It's shaping up to be a DTrace version 2.0:

C++ 40

C++ Virtualization Programming Latency 40

The Netflix TechBlog

SEPTEMBER 24, 2021

The ProRes codec family provides great editing performance and image quality. Uploading and downloading data always come with a penalty, namely latency. Furthermore, the goal for writes is not to build a general purpose system that supports arbitrary writers, but rather one that maximizes potential packager performance.

Cloud 237

Cloud Media Storage Cache 237

Percona

MARCH 29, 2023

As the amount of data grows, the need for efficient data compression becomes increasingly important to save storage space, reduce I/O overhead, and improve query performance. Block compression can improve performance by allowing data to be read and written in smaller chunks. provides higher compression rates.

Storage 105

Storage Network Open Source Latency 105

CSS Wizardry

AUGUST 13, 2019

So, what are the performance implications of all of this? Although this response has a 0B filesize, we will always take the latency hit on every single page view (and this response is basically 100% latency). com , which introduces yet more latency for the connection setup. It is actively harmful for performance.

Latency 203

Latency Cache Strategy Media 203

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 ). Two-way latency is often called round-trip time (RTT).

Performance 105

Performance Network Latency Servers 105

Enprowess

SEPTEMBER 7, 2021

Quick summary : Node vs React Comparison is not correct because both technologies are entirely different things. Node JS vs. React JS Comparison. Enhanced performance: It has an Asynchronous or Non-blocking nature. Developers can perform non-blocking operations, which boosts web app performance. React Overview.

Open Source 52

Open Source Virtualization Programming Servers 52

The Netflix TechBlog

NOVEMBER 2, 2021

Perceptual quality measurements are used to drive video encoding optimizations , perform video codec comparisons , carry out A/B testing and optimize streaming QoE decisions to mention a few. This enables us to use our scale to increase throughput and reduce latencies. VQS is called using the measureQuality endpoint.

Media 171

Media Innovation Metrics Latency 171

Brendan Gregg

SEPTEMBER 25, 2021

These strange questions came to the fore back in 2014 when Netflix was switching services from CentOS Linux to Ubuntu, and I helped debug several weird performance issues including one I'll describe here. A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. How would you _time_ time?

Speed 126

Speed Java AWS Virtualization 126

Scalegrid

JULY 29, 2020

In our final post, we will put them head-to-head in a detailed feature comparison and compare the results of PgBouncer vs. Pgpool-II performance for your PostgreSQL hosting ! Performance Testing. Since PgBouncer is a very light-weight process, installing it on the box has no impact on overall performance. Final Words.

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

Dynatrace

JANUARY 15, 2020

This extends Dynatrace visibility into Citrix user experience and Citrix platform performance. Platform performance —get visibility into the performance of the Citrix platform to optimize application delivery. Dynatrace Extension: SAP ABAP platform performance. Dynatrace Extension: NetScaler performance.

Latency 36

Latency Performance Virtualization Infrastructure 36

Smashing Magazine

AUGUST 10, 2023

Large preview ) I don’t know about you, but it often feels like I’m missing something when measuring page speed performance. Not the best way to get a high-level view of performance. I’ve had time to work with DebugBear and thought I’d give you a peek at it with some notes on my experience using it to monitor performance.

Speed 81

Speed Monitoring Testing Network 81

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. In comparison, for Linpack Frontier operates at 68% of peak capacity. I had a version of this published as a story at InsideHPC on December 1st.

Architecture 52

Architecture Latency Benchmarking AWS 52

The Netflix TechBlog

MARCH 13, 2020

In this tech blog, we will report the current status of the SVT-AV1 project, as well as the characteristics and performance of the encoder and decoder. See the next section for an outline of the main SVT-AV1 features that allow high performance at competitive compression efficiency.

Open Source 154

Open Source Efficiency C++ Speed 154

Scalegrid

OCTOBER 17, 2019

While there is plenty of well-documented benefits to using a connection pooler, there are some arguments to be made against using one: Introducing a middleware in the communication inevitably introduces some latency. A middleware becomes a single point of failure. They are well worth the added configuration and maintenance effort.

Architecture 200

Architecture Database Latency Servers 200