VoltDB

OCTOBER 30, 2024

Rather than waiting for equipment to fail, preventive maintenance, via things like real-time decisioning , schedules tasks based on time intervals or usage metrics, enhancing productivity and cost-effectiveness and preventing costly downtime. This approach works well for equipment with variable usage.

Automotive 52

Automotive IoT Artificial Intelligence Energy 52

The Netflix TechBlog

JUNE 13, 2023

By collecting and analyzing key performance metrics of the service over time, we can assess the impact of the new changes and determine if they meet the availability, latency, and performance requirements. The results are then evaluated using specific metrics to determine whether the hypothesis is valid.

Traffic 285

Traffic Metrics Systems Strategy 285

CSS Wizardry

OCTOBER 16, 2023

Plotted on the same horizontal axis of 1.6s, the waterfalls speak for themselves: 201ms of cumulative latency; 109ms of cumulative download. 4,362ms of cumulative latency; 240ms of cumulative download. When we talk about downloading files, we—generally speaking—have two things to consider: latency and bandwidth. It gets worse.

Cache 312

Cache Latency Strategy Speed 312

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. Additionally, you can easily use any previously defined metrics and SLOs from your environments.

DevOps 237

DevOps Latency Traffic Best Practices 237

HammerDB

OCTOBER 23, 2023

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. Use the performance metrics available in the database first before looking at data further down in the stack. On MySQL, we saw a 1.5X performance advantage.

Benchmarking 62

Benchmarking Database Network C++ 62

CSS - Tricks

MARCH 16, 2020

Along with other general diagnostics and web performance metrics, a really useful feature of the report is that each of the key areas is aggregated into color-coded scores between 0-100. These are the numerical key performance metrics collected as part of any Lighthouse report. How should the metric comparison be output to the console?

Google 82

Google Latency Website Metrics 82

HammerDB

JULY 6, 2024

This is a brief post to highlight the metrics to use to do the comparison using a separate hardware platform for illustration purposes. Metrics Connected Started CPU Metrics for Intel(R) Xeon(R) Platinum 8280L CPU @ 2.70GHz:(112 CPUs) hammerdb>tcstart Transaction Counter Started hammerdb>0 MariaDB tpm CPU all usr%-0.00

C++ 52

C++ Hardware Benchmarking Virtualization 52

Dynatrace

JANUARY 31, 2024

This freshness measurement can then be used by out-of-the-box Dynatrace anomaly detection to actively alert on abnormal changes within the data ingest latency to ensure the expected freshness of all the data records. Scenario : For many B2B SaaS companies, the number of reported customers is an important metric.

DevOps 212

DevOps Analytics Airlines Metrics 212

The Netflix TechBlog

FEBRUARY 20, 2019

Today we are excited to announce latency heatmaps and improved container support for our on-host monitoring solution?—?Vector?—?to Remotely view real-time process scheduler latency and tcp throughput with Vector and eBPF What is Vector? to the broader community. Vector is open source and in use by multiple companies.

Performance 216

Performance Latency Open Source Metrics 216

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. In particular, the VMAF metric lies at the core of improving the Netflix member’s streaming video quality. Assembly for two of the metrics (e.g.

Media 179

Media Innovation Metrics Latency 179

Dynatrace

SEPTEMBER 25, 2019

Citrix platform performance—optimize your Citrix landscape with insights into user load and screen latency per server. As a part of the Citrix monitoring extension for Dynatrace, we deliver a OneAgent plugin that adds several Citrix-specific WMI counters to the set of metrics reported by OneAgent.

Latency 120

Latency Performance Virtualization Infrastructure 120

The Netflix TechBlog

JANUARY 24, 2022

Technically, “performance” metrics are those relating to the responsiveness or latency of the app, including start up time. At Netflix the term “performance” usually encompasses both performance metrics (in the strict meaning) and memory metrics, and that’s how we’re using the term here. What do we mean by Performance?

Performance 208

Performance Performance Testing Metrics Testing 208

Scalegrid

MAY 11, 2024

In-Memory Storage Engine, as the name suggests, stores data in memory for faster performance and lower latencies. Feature Comparison: MMAPV1 vs WiredTiger MMAPV1 provides document-level locking that allows for independent updates on different documents in a single collection. released in December 2015.

Storage 130

Storage Engineering Cache Database 130

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 99

Performance Latency Metrics Engineering 99

Smashing Magazine

AUGUST 10, 2023

In fact, there’s great tooling right under the hood of most browsers in DevTools that can do many things that a tried-and-true service like WebPageTest offers, complete with recommendations for improving specific metrics. Certain tools are designed for certain metrics with certain assumptions that produce certain results.

Speed 82

Speed Monitoring Testing Network 82

The Netflix TechBlog

DECEMBER 2, 2019

QoE is measured with a compilation of metrics that describe everything about the user’s experience from the time they press play until the time they finish watching. Examples of such metrics include how quickly the content starts playing and the number of times the video froze during playback (number of rebuffers).

Metrics 146

Metrics Strategy Testing Efficiency 146

The Netflix TechBlog

DECEMBER 2, 2019

QoE is measured with a compilation of metrics that describe everything about the user’s experience from the time they press play until the time they finish watching. Examples of such metrics include how quickly the content starts playing and the number of times the video froze during playback (number of rebuffers).

Metrics 143

Metrics Strategy Testing Efficiency 143

The Netflix TechBlog

DECEMBER 2, 2019

QoE is measured with a compilation of metrics that describe everything about the user’s experience from the time they press play until the time they finish watching. Examples of such metrics include how quickly the content starts playing and the number of times the video froze during playback (number of rebuffers).

Metrics 130

Metrics Strategy Testing Efficiency 130

The Netflix TechBlog

MARCH 13, 2020

Compared to the most recent master version of libaom (AV1 reference software), SVT-AV1 is similar in compression efficiency and at the same time achieves significantly lower encoding latency on multi-core platforms when using its inherent parallelization capabilities. The plot shows the results of the 2-pass encoding mode in both codecs.

Open Source 159

Open Source Efficiency C++ Speed 159

CSS - Tricks

NOVEMBER 1, 2019

People say JAMstack sites are fast — let’s find out why by looking at real performance metrics! We’ll cover common metrics, like Time to First Byte ( TTFB ) among others, then compare data across a wide section of sites to see how different ways to slice those sites up compare. seconds to see primary content. Time To First Byte.

Speed 47

Speed Mobile Metrics Scalability 47

The Agile Manager

DECEMBER 17, 2008

But of bigger concern is the latency between the time when requirements are captured and the time they're available as working code in an environment. By comparison, Agile maintains a steady pace of progress by having all of functional efforts simultaneously focused on achieving the same result.

Code 40

Code Latency Metrics Testing 40

Brendan Gregg

AUGUST 8, 2017

Load averages are an industry-critical metric – my company spends millions auto-scaling cloud instances based on them and other metrics – but on Linux there's some mystery around them. But to understand them in more detail is difficult without the aid of other metrics. Latency was acceptable and no one complained.

Latency 111

Latency Metrics C++ Systems 111

Dynatrace

JANUARY 15, 2020

Citrix platform performance—optimize your Citrix landscape with insights into user load and screen latency per server. As a part of the Citrix monitoring extension for Dynatrace, we deliver a OneAgent plugin that adds several Citrix-specific WMI counters to the set of metrics reported by OneAgent.

Latency 39

Latency Performance Virtualization Infrastructure 39

Highly Scalable

SEPTEMBER 18, 2012

Historically, NoSQL paid a lot of attention to tradeoffs between consistency, fault-tolerance and performance to serve geographically distributed systems, low-latency or highly available applications. Read/Write latency. Read/Write requests are processes with a minimal latency. Data Placement. Read/Write scalability.

Database 213

Database Latency C++ Scalability 213

Smashing Magazine

MAY 16, 2022

The header is constructed via a name with an optional description and/or metric value. Web browsers expose a global Performance Timeline API to inspect details about specific metrics/events that have happened during the page lifecycle. Any server or proxy can add this header to the request to provide inspectable data.

Servers 95

Servers Monitoring Cache Network 95

Percona

APRIL 7, 2023

Here’s how the same test performed when running Percona Distribution for PostgreSQL 14 on these same servers: Queries: reads Queries: writes Queries: other Queries: total Transactions Latency (95th) MySQL (A) 1584986 1645000 245322 3475308 122277 20137.61 MySQL (B) 2517529 2610323 389048 5516900 194140 11523.48

Tuning 139

Tuning Cache Servers Benchmarking 139

Highly Scalable

MAY 1, 2012

This approach often leads to heavyweight high-latency analytical processes and poor applicability to realtime use cases. Computation of more advanced metrics like a number of unique visitor or most frequent items is more challenging and requires a lot of resources if implemented straightforwardly. Heavy Hitters: Stream-Summary.

Analytics 191

Analytics Traffic Big Data Efficiency 191

The Morning Paper

MAY 28, 2019

So it’s interesting to see a paper using nano-Joules per prediction as an evaluation metric. The resulting system can integrate seamlessly into a scikit-learn based development process, and dramatically reduces the total energy usage required for classification with very low latency. Introducing race logic. Performance evaluation.

Energy 52

Energy Hardware Efficiency Architecture 52

Smashing Magazine

AUGUST 22, 2021

Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). Two-way latency is often called round-trip time (RTT).

Performance 107

Performance Network Latency Servers 107

Alex Russell

APRIL 29, 2021

Another window into this question is provided by the Web Confluence Metrics project. For heavily latency-sensitive use-cases like WebXR, this is a critical component in delivering a good experience. Thankfully, the advent of M1 Macs makes it possible to remove hardware differences from comparisons. Converging Views.

Media 145

Media Games Education Engineering 145

Alex Russell

JULY 14, 2021

This reduces friction and commensurately increases "engagement" metrics. [6]. Many have adroitly covered the perspective and ethical distortions within social media firms caused by the relentless pursuit of "north star" metrics. There's little new I can add. Apple's right to worry about engine security.

Google 134

Google Mobile Engineering Internet 134

Smashing Magazine

AUGUST 9, 2021

You’ve probably heard things like: “HTTP/3 is much faster than HTTP/2 when there is packet loss”, or “HTTP/3 connections have less latency and take less time to set up”, and probably “HTTP/3 can send data more quickly and can send more resources in parallel”. HTTP/2 versus HTTP/3 protocol stack comparison ( Large preview ).

Transportation 145

Transportation Internet Internet Network 145

Smashing Magazine

SEPTEMBER 6, 2021

Finally, not inlining resources has an added latency cost because the file needs to be requested. If you do any comparison of this sort yourself (or if you read articles that do), make 100% sure that you’ve checked what’s actually going on. In our own early tests , I found seriously diminishing returns at about 40 files.

Network 107

Network Servers Cache Traffic 107

Smashing Magazine

SEPTEMBER 29, 2021

Key user-centric metrics often depend on the size, number, layout, and loading priority of images on the page. Smaller file size directly impacts the Largest contentful Paint (LCP) metric for the page as image resources needed by the page get loaded faster. See the Pen [Image format comparison 2]([link] by Addy Osmani.

Open Source 145

Open Source Speed Website Google 145

Smashing Magazine

JANUARY 11, 2021

LogRocket tracks key metrics, incl. Getting Ready: Planning And Metrics Performance culture, Core Web Vitals, performance profiles, CrUX, Lighthouse, FID, TTI, CLS, devices. Getting Ready: Planning And Metrics. DOM complete, time to first byte, first input delay, client CPU and memory usage. Get a free trial of LogRocket today.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Getting Ready: Planning And Metrics. Getting Ready: Planning And Metrics. 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. Table Of Contents. Quick Wins.

Performance 145

Performance Cache Servers Network 145

Smashing Magazine

JANUARY 7, 2019

Getting Ready: Planning And Metrics. Getting Ready: Planning And Metrics. 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. Table Of Contents. Setting Realistic Goals. Defining The Environment.

Performance 104

Performance Cache Metrics Network 104