CSS Wizardry

AUGUST 7, 2019

The first—and often most surprising for people to learn—thing that I want to draw your attention to is that TTFB counts one whole round trip of latency. The reason is because mobile networks are, as a rule, high latency connections. Armed with this knowledge, we can soon understand why TTFB can often increase so dramatically on mobile.

Latency 269

Latency Ecommerce Servers Mobile 269

The Netflix TechBlog

JUNE 4, 2019

Because microprocessors are so fast, computer architecture design has evolved towards adding various levels of caching between compute units and the main memory, in order to hide the latency of bringing the bits to the brains. CFS is widely used and therefore well tested and Linux machines around the world run with reasonable performance.

Cache 251

Cache Latency Airlines Logistics 251

The Morning Paper

OCTOBER 4, 2020

Understanding operational 5G: a first measurement study on its coverage, performance and energy consumption , Xu et al., What is the end-to-end throughput and latency, and where are the bottlenecks? Throughput and latency. 5G network paths achieve an average latency of 21.8ms, a 32% reduction on the comparable 4G times.

Energy 130

Energy Latency Performance Network 130

CSS Wizardry

OCTOBER 27, 2018

A lot of companies—even if they are aware that performance is key to their business—are often unsure of how, when, or where performance testing sits within their development lifecycle. To make things worse, they’re also usually unsure whose responsibility performance measuring and monitoring is.

Performance Testing 172

Performance Testing Testing Performance Strategy 172

The Netflix TechBlog

AUGUST 30, 2021

Complementing the hardware is the software on the RAE and in the cloud, and bridging the software on both ends is a bi-directional control plane. For example, when running tests, the state of the device will change from “available for testing” to “in test.” In this blog post, we will focus on the latter feature set.

Latency 213

Latency Traffic Transportation Cloud 213

Dynatrace

SEPTEMBER 30, 2021

Cloud migration is the process of transferring some or all your data, software, and operations to a cloud-based computing environment that offers unlimited scale and high availability. They need enough hardware to serve their anticipated volume and keep things running smoothly without buying too much or too little. Reduced cost.

Cloud 161

Cloud Traffic Best Practices Strategy 161

ACM Sigarch

MAY 31, 2023

Heterogeneous and Composable Memory (HCM) offers a feasible solution for terabyte- or petabyte-scale systems, addressing the performance and efficiency demands of emerging big-data applications. CXL-based disaggregated memory provides a new opportunity with two orders of magnitude better performance than RDMA (as illustrated in Figure 2).

Latency 52

Latency Hardware Cache Architecture 52

Scalegrid

APRIL 16, 2020

Each of these models is suitable for production deployments and high traffic applications, and are available for all of our supported databases, including MySQL , PostgreSQL , Redis™ and MongoDB® database ( Greenplum® database coming soon). Here are the databases and cloud providers supported through each model: Supported Databases.

Cloud 242

Cloud Azure AWS Database 242

The Morning Paper

JUNE 13, 2019

As we saw with the SOAP paper last time out, even with a fixed model variant and hardware there are a lot of different ways to map a training workload over the available hardware. The following figure highlights how just one of these variables, batch size, impacts throughput and latency on ResNet50.

Hardware 58

Hardware Latency Serverless Energy 58

John McCalpin

DECEMBER 6, 2016

The Xeon Phi x200 (Knights Landing) has a lot of modes of operation (selected at boot time), and the latency and bandwidth characteristics are slightly different for each mode. I will discuss the performance characteristics of Cache mode at a later date. MCDRAM maximum latency (ns) 156.1 MCDRAM maximum latency (ns) 156.1

Latency 40

Latency Cache Testing Systems 40

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 current system assumes an application specific regression model is available on the servers which can predict processing time given the current parameters of the job (e.g. in the cloud). for the wasm-version.

Mobile 104

Mobile Cloud Latency Games 104

The Morning Paper

MAY 14, 2019

Seer: leveraging big data to navigate the complexity of performance debugging in cloud microservices Gan et al., Finally, we show that Seer can identify application level design bugs, and provide insights on how to better architect microservices to achieve predictable performance. ASPLOS’19.

Big Data 45

Big Data Cloud Performance Hardware 45

VoltDB

JUNE 29, 2017

Most existing adtech infrastructure simply can not achieve the required latency. VoltDB provides the necessary technology to achieve the latency required by header bidding. However, increasing hardware capacity doesn’t really solve the problem, and it introduces new ones. Another adtech infrastructure problem is capacity.

Performance 40

Performance Hardware Latency Infrastructure 40

VoltDB

JUNE 29, 2017

Most existing adtech infrastructure simply can not achieve the required latency. VoltDB provides the necessary technology to achieve the latency required by header bidding. However, increasing hardware capacity doesn’t really solve the problem, and it introduces new ones. Another adtech infrastructure problem is capacity.

Performance 40

Performance Hardware Latency Infrastructure 40

Dynatrace

JUNE 25, 2020

Dynatrace Managed is intrinsically highly available as it stores three copies of all events, user sessions, and metrics across its cluster nodes. The network latency between cluster nodes should be around 10 ms or less. Turnkey high availability across globally distributed data centers. Dynatrace news.

Availability 241

Availability Hardware Latency Traffic 241

Percona

MAY 2, 2023

Since your dataset is 100 GB and you have 500 GB of RAM, you can allocate a significant portion of the available memory to the InnoDB buffer pool. A commonly recommended value for the buffer pool size is between 50% to 75% of the available memory. 16) and monitoring the server’s performance. The answer could be better.

Social Media 120

Social Media Database Servers Cache 120

Brendan Gregg

AUGUST 18, 2019

bpftrace is a new open source tracer for Linux for analyzing production performance problems and troubleshooting software. Linux already has many performance tools, but these are often counter-based and have limited visibility. Linux already has many performance tools, but these are often counter-based and have limited visibility.

Latency 68

Latency C++ Cache Programming 68

KeyCDN

AUGUST 15, 2019

Web performance is a broad subject, and you’ll find no shortage of performance testing tips and tutorials all over the web. What is Performance Testing? In the context of web development, performance testing entails using software tools to simulate how an application runs under specific circumstances.

Testing Tools 55

Testing Tools Best Practices Performance Testing Testing 55

Dotcom-Montior

OCTOBER 6, 2021

trying to reduce the amount of manual work and ensuring all the components (infrastructure/hardware, middleware, software, etc.) Availability. Performance. Furthermore, SREs can view real-time dashboards, access reports, and review analytics to quickly identify performance issues. Monitoring. Incident Response.

Engineering 67

Engineering DevOps Monitoring Google 67

HammerDB

OCTOBER 23, 2023

However, with more complex application logic this network round trip soon becomes a key focus area for improving performance. performance advantage in favour of stored procedures and on MariaDB a 1.3X performance advantage. On MySQL, we saw a 1.5X Copy Code Copied Use a different Browser # iperf -c 127.0.0.1 3.33 |__mariadbd.

Benchmarking 62

Benchmarking Database Network C++ 62

Dotcom-Montior

DECEMBER 8, 2021

are all prone to performance issues and unexpected outages at some point. Problem management is the process by which the root causes of incidents are permanently fixed, which improves long-term performance and future service deployments. Software services still require physical devices and hardware for them to function.

Social Media 90

Social Media Monitoring Latency DevOps 90

Smashing Magazine

AUGUST 3, 2021

Lots can go wrong: a network request fails, a third-party library breaks, a JavaScript feature is unsupported (assuming JavaScript is even available), a CDN goes down, a user behaves unexpectedly (they double-click a submit button), the list goes on. Both examples check something is available before using it. More after jump!

Network 145

Network Engineering Availability Monitoring 145

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 124

Performance Hardware Tuning Storage 124

Scalegrid

DECEMBER 21, 2023

Buckle up as we delve into the world of Redis® monitoring, exploring the most important Redis® metrics, discussing essential tools, and even peering into the future of Redis® performance management. Key Takeaways Redis® monitoring is essential for safeguarding performance, reliability, and security.

Strategy 130

Strategy Monitoring Latency DevOps 130

Abhishek Tiwari

JULY 12, 2018

Data Pipeline A data pipeline is a software that ingests data from multiple sources, transforms it and finally makes it available to internal or external products. A data pipeline is a software which runs on hardware. The software is error-prone and hardware failures are inevitable.

Latency 63

Latency Analytics Scalability Engineering 63

Abhishek Tiwari

DECEMBER 27, 2017

overall performance comparable to bare metal. The good news is all of these challenges including performance can be tackled and in several cases, there are new developments to overcome them. The good news is all of these challenges including performance can be tackled and in several cases, there are new developments to overcome them.

Big Data 63

Big Data Storage Benchmarking Hardware 63

Testsigma

JANUARY 30, 2021

The native and mobile web browser testing is being performed more and more compared to desktop testing. You just need to hit the URL and launch the application on the available browser on your phone. It also allows users to access a website for which native application is not available. What are Mobile Web Applications?

Mobile 52

Mobile Testing Website Internet 52

All Things Distributed

JULY 13, 2010

Cluster Computer Instances for Amazon EC2 are a new instance type specifically designed for High Performance Computing applications. In those days, my main goal was to take the advances in building the highly dedicated High Performance Cluster environments and turn them into commodity technologies for the enterprise to use.

Cloud 118

Cloud AWS Automotive Latency 118

Scalegrid

FEBRUARY 8, 2024

Key Takeaways Distributed storage systems benefit organizations by enhancing data availability, fault tolerance, and system scalability, leading to cost savings from reduced hardware needs, energy consumption, and personnel. Variations within these storage systems are called distributed file systems.

Storage 130

Storage Systems Big Data Azure 130

HammerDB

DECEMBER 5, 2020

A full understanding of why this is important requires some knowledge of the evolution of database hardware and software. The HammerDB TPROC-C workload by design intended as CPU and memory intensive workload derived from TPC-C – so that we get to benchmark at maximum CPU performance at a much smaller database footprint. better.

C++ 40

C++ Benchmarking Virtualization Open Source 40

Dynatrace

JANUARY 26, 2021

This allows teams to sidestep much of the cost and time associated with managing hardware, platforms, and operating systems on-premises, while also gaining the flexibility to scale rapidly and efficiently. Every time the trigger executes, the function runs on an available resource. This creates latency when they need to restart.

Serverless 241

Serverless Efficiency Lambda Azure 241

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++.” Description.

Latency 50

Latency C++ Hardware Performance 50

Adrian Cockcroft

MARCH 17, 2020

The opening paragraph above is the same as my previous discussion focused on hardware, software and operational failure modes , but we are now in the middle of a pandemic, so I’m going to adapt the discussion of hazards and failure modes to our current situation. They could spend too long deciding what to do. What Happens Next?

Healthcare 52

Healthcare Government Airlines Systems 52

Alex Russell

JANUARY 30, 2024

This split decision was available via last year's update , but was somewhat buried. The usual caveats also apply: Performance is a deep and nuanced domain, and much can go wrong beyond content size and composition. How sites manage resources after-load can have a big impact on perceived performance. In the U.S.,

Performance 90

Performance Network Mobile Speed 90

The Morning Paper

MAY 12, 2019

An open-source benchmark suite for microservices and their hardware-software implications for cloud & edge systems Gan et al., It’s a pretty impressive effort to pull together and make available in open source (not yet available as I write this) such a suite, and I’m sure explains much of the long list of 24 authors on this paper.

Open Source 61

Open Source Hardware Benchmarking Systems 61

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 106

Performance Network Latency Servers 106

Smashing Magazine

MAY 20, 2020

How To Make Performance Visible With GitLab CI And Hoodoo Of GitLab Artifacts. How To Make Performance Visible With GitLab CI And Hoodoo Of GitLab Artifacts. Performance degradation is a problem we face on a daily basis. Performance is a competitive advantage that can bring and retain customers. Anton Nemtsev.

Performance 99

Performance Metrics Best Practices Code 99