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. With traffic growth, a single leader node handling all request volume started becoming overloaded. The cache is kept in sync with the current leader process.

Cache 224

Cache Latency Traffic Systems 224

Scalegrid

JANUARY 25, 2024

Key Takeaways Critical performance indicators such as latency, CPU usage, memory utilization, hit rate, and number of connected clients/slaves/evictions must be monitored to maintain Redis’s high throughput and low latency capabilities. Similarly, an increased throughput signifies an intensive workload on a server and a larger latency.

Metrics 130

Metrics Monitoring Latency Cache 130

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side. But I'm not completely sure. in total.

Speed 52

Speed Java AWS Virtualization 52

Randon ASCII

JANUARY 12, 2022

One benchmark I wrote measured the L2 cache latency. I don’t remember what the L2 cache latency was but do remember that the latency varied depending on which CPU core I ran it on. The L2 latency from CPU core 0 was pretty reliably four cycles lower than the L2 latency from CPU core 1 or 2. So, anyway. mm distance!

Cache 126

Cache Latency Benchmarking Hardware 126

VoltDB

APRIL 25, 2024

While Wi-Fi theoretically can achieve 5G-like speeds, it falls short in providing the consistent performance and reliability that 5G offers, including low latency, higher speeds, and increased bandwidth. Additionally, frequent handoffs between access points can lead to delays and connection drops.

Network 52

Network IoT Wireless Infrastructure 52

The Netflix TechBlog

SEPTEMBER 2, 2020

Edgar captures 100% of interesting traces , as opposed to sampling a small fixed percentage of traffic. Telltale provides Edgar with latency benchmarks that indicate if the individual trace’s latency is abnormal for this given service. Is this an anomaly or are we dealing with a pattern?

Latency 296

Latency Transportation Engineering Traffic 296

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side. But I'm not completely sure. in total.

Speed 40

Speed Java AWS Virtualization 40

Percona

MARCH 29, 2023

Benefits of snappy compression in MongoDB: Fast compression and decompression speeds Low CPU usage A streamable format that allows for quick processing Minimal impact on query performance Zstandard Compression or zstd , another newer block compression method provided by MongoDB starting for v4.2, provides higher compression rates.

Storage 105

Storage Network Open Source Latency 105

Dynatrace

MAY 17, 2023

Making applications observable—relying on metrics, logs, and traces to understand what software is doing and how it’s performing—has become increasingly important as workloads are shifting to multicloud environments. This allows us to quickly tell whether the network link may be saturated or the processor is running at its limit.

Metrics 163

Metrics Monitoring Database Network 163

IO River

NOVEMBER 2, 2023

‍What Comprises Video Streaming - Traffic CharacteristicsWith the emphasis on a high-quality streaming experience, the optimization starts from the very core. Fundamentally, internet traffic can be broadly categorized into static and dynamic content. Let’s analyze how you can achieve this win-win as effectively as possible!‍What

Architecture 52

Architecture Performance Internet Internet 52

IO River

NOVEMBER 2, 2023

What Comprises Video Streaming - Traffic CharacteristicsWith the emphasis on a high-quality streaming experience, the optimization starts from the very core. Fundamentally, internet traffic can be broadly categorized into static and dynamic content. Let’s analyze how you can achieve this win-win as effectively as possible!‍What

Architecture 52

Architecture Performance Internet Internet 52

All Things Distributed

NOVEMBER 13, 2018

Some of the largest enterprises and public sector organizations in Italy are using AWS to build innovations and power their businesses, drive cost savings, accelerate innovation, and speed time-to-market. To meet such large traffic numbers, they need a technology infrastructure that is secure, reliable, and flexible.

AWS 167

AWS Energy Automotive Traffic 167

Percona

JUNE 22, 2023

Query performance Query performance is a key performance indicator (KPI) in MySQL, as it measures the efficiency and speed of query execution. That said, it should also be monitored for usage, which will exhibit the traffic pressuring them. This is not an exhaustive list but an example of what we can watch for.

Performance 102

Performance Monitoring Traffic Database 102

High Scalability

JULY 20, 2018

Investing tons of efforts into IT, building complicated deployment and clustering software etc. During our testing using the storage optimized EC2 instances (I3.2xlarge) we noticed that we were able to perform over 200K IOPS of 1K byte items thus meeting our throughput goals with latency rarely exceeding 1 millisecond.

Internet 121

Internet Internet Scalability Automotive 121

Dotcom-Montior

MAY 12, 2020

Modern web applications and pages, such as single-page applications, that put the user experience at its utmost priority are expected to be available 24/7, anywhere in the world, usable on any screen size, secure, flexible, scalable and be ready to meet traffic spikes on demand. Network latency. Network Latency. Connection time.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

Scalegrid

JANUARY 12, 2024

Memory Allocation: Allocating sufficient memory linked directly to the assigned CPU ensures effective utilization resulting in better system speed. The fundamental principles at play include evenly distributing the workload among servers for better application performance and redirecting client requests to nearby servers to reduce latency.

Cloud 130

Cloud Virtualization Storage Efficiency 130

ScaleOut Software

JULY 19, 2021

In-memory computing has the speed and scalability needed to generate responses within milliseconds, and it can evaluate and report aggregate trends every few seconds. The post The Need for Real-Time Device Tracking appeared first on ScaleOut Software.

IoT 78

IoT Analytics Big Data Architecture 78

KeyCDN

AUGUST 15, 2019

In the context of web development, performance testing entails using software tools to simulate how an application runs under specific circumstances. When the word “performance” is heard, most people immediately think of speed. What Are the Benefits of Performance Testing? Peak response time: The longest response time.

Testing Tools 55

Testing Tools Best Practices Performance Testing Testing 55

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Consistent performance matters just as much as low average latency.

Performance 86

Performance Latency Metrics Engineering 86

Percona

MAY 2, 2023

Also, we will take a look at our open-source backup utility custom-built to help avoid costs and proprietary software – Percona Backup for MongoDB or PBM. The speed of backup also depends on allocated IOPS and type of storage since lots of read/writes would be happening during this process. Records backup progress logging.

Best Practices 52

Best Practices Database Storage Servers 52

Percona

SEPTEMBER 1, 2023

This reduction in latency ensures that applications and websites provide a more rapid and responsive user experience. Enhanced User Experience Whether you operate an e-commerce platform, a content management system, or any other application reliant on MySQL, users will notice and appreciate the improved speed and responsiveness.

Tuning 52

Tuning Database Performance Hardware 52

O'Reilly

DECEMBER 2, 2019

High-speed networks through 5G may represent the next generation of cord cutting. Rural connectivity is a persistent problem; many rural users (and some urban users) are still limited to dial-up speeds. There are impressive estimates for latency for 5G, but reality has a tendency to be harsh on such predictions. I don’t, do you?

Wireless 53

Wireless Serverless IoT Artificial Intelligence 53

VoltDB

JUNE 1, 2017

An opening scene involving a traffic jam of Viking boats and a musical number (“Love Can’t Afjord to wait”). While the ultimate goal is still to save money, it’s human FTE hours as opposed to hardware and software costs. Latency Optimizers” – need support for very large federated deployments. Vikings fight zombies.

Hardware 56

Hardware Latency Virtualization Cloud 56

Abhishek Tiwari

NOVEMBER 3, 2018

In addition, traditional CMS solutions lack integration with modern software stack, cloud services, and software delivery pipelines. Using CDN for the whole website, you can offload most of the website traffic to your CDN which will handle not only large traffic spikes but also reduce the latency of content delivery.

Systems 63

Systems Cache Website Network 63

VoltDB

JUNE 1, 2017

An opening scene involving a traffic jam of Viking boats and a musical number (“Love Can’t Afjord to wait”). While the ultimate goal is still to save money, it’s human FTE hours as opposed to hardware and software costs. Latency Optimizers” – need support for very large federated deployments. Vikings fight zombies.

Hardware 40

Hardware Latency Virtualization Cloud 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

Dynatrace

AUGUST 5, 2019

With Dynatrace, we follow a combination of agent and agent-less approach where the “secret sauce” lies in our Dynatrace OneAgent (watch my Performance Clinic YouTube tutorial with our Chief Software Architect Helmut Spiegl ). Resource consumption & traffic analysis. Step 3: Detailed Traffic Dependency Analysis.

Cloud 31

Cloud Traffic Database Network 31

Smashing Magazine

JANUARY 6, 2020

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. Start Render time, Speed Index ). Treo Sites provides competitive analysis based on real-world data.

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

JANUARY 7, 2019

You need a business stakeholder buy-in, and to get it, you need to establish a case study on how speed benefits metrics and Key Performance Indicators ( KPIs ) they care about. Note : If you use Page Speed Insights (no, it isn’t deprecated), you can get CrUX performance data for specific pages instead of just the aggregates.

Performance 104

Performance Cache Metrics Network 104

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. They use third-party software like Docker or Kubernetes to simplify their administration. There have been security vulnerabilities, just like there are with any software.

Virtualization 76

Virtualization AWS Engineering Hardware 76

Smashing Magazine

AUGUST 22, 2021

A Primer on Speed. Discussing performance and “speed” can quickly get complex, because many underlying aspects contribute to a web-page loading “slowly”. Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Congestion Control.

Performance 107

Performance Network Latency Servers 107

All Things Distributed

OCTOBER 2, 2017

VPC Endpoints give you the ability to control whether network traffic between your application and DynamoDB traverses the public Internet or stays within your virtual private cloud. Performant – DynamoDB consistently delivers single-digit millisecond latencies even as your traffic volume increases.

Internet 128

Internet Internet AWS Performance 128

Smashing Magazine

SEPTEMBER 6, 2021

Using just a few (but still more than one), however, could nicely balance congestion growth with better performance, especially on high-speed networks. Finally, not inlining resources has an added latency cost because the file needs to be requested. Note that there is an Apache Traffic Server implementation, though.).

Network 107

Network Servers Cache Traffic 107