CSS Wizardry

MAY 19, 2020

Their ability to serve the tiniest possible font files tailored to specific user agents and platforms is amazing, and with such a huge, freely-available library served from Google-grade CDNs… I definitely see why people continue to turn to it. On a high-latency connection, this spells bad news. Comparisons and Visualisations.

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 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

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. Performance Comparison: Redis vs Memcached Although Redis and Memcached are high-performance in-memory data stores, their performance characteristics are distinct.

Cache 130

Cache Storage Scalability Architecture 130

CSS Wizardry

OCTOBER 16, 2023

What is the availability, configurability, and efficacy of each? ?️ 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. And do any of our previous decisions dictate our options?

Cache 291

Cache Latency Strategy Speed 291

Percona

MARCH 20, 2023

In short, each cluster is, in reality, a single database with high availability and other functionalities built in. 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. Anyhow, we are here to talk about Proxies.

Games 118

Games Latency Traffic Cache 118

The Morning Paper

AUGUST 29, 2019

We focused on OLAP-oriented parallel data warehouse products available for AWS and restricted our attention to commercially available systems. The experimental results focus on six main areas of comparison: query restrictions system initialisation time query performance cost data compatibility with other systems scalability.

Architecture 76

Architecture Cloud Storage Serverless 76

Testsigma

JANUARY 30, 2021

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. There are so many different devices readily available in the market today to view a website. Why is mobile web browser testing important?

Mobile 52

Mobile Testing Website Internet 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. One can perform this comparison live on the request path or offline based on the latency requirements of the particular use case.

Traffic 279

Traffic Metrics Systems Strategy 279

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. This is all available out-of-the-box with the default workflow template provided by Site Reliability Guardian.

DevOps 224

DevOps Latency Traffic Best Practices 224

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

The Morning Paper

SEPTEMBER 8, 2019

The paper presents results on TCP-H (which looks a bit like a toy compared to the real production queries, but is useful for comparison), as well as from some production-like queries. Five queries improve substantially on both latency and total compute hours. 8 out of the 22 TPC-H queries cannot be advantaged by sampling.

Big Data 57

Big Data Analytics Latency Azure 57

Scalegrid

JUNE 4, 2020

Compare Latency. lower latency compared to DigitalOcean for PostgreSQL. Now, let’s take a look at the throughput and latency performance of our comparison. Next, we are going to test and compare the latency performance between ScaleGrid and DigitalOcean for PostgreSQL. PostgreSQL DigitalOcean Latency Averages (ms).

Database 230

Database Latency Benchmarking Performance 230

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. 10–20 MB/sec (it is, unsurprisingly, receiving lots of data).

Performance 211

Performance Latency Open Source Metrics 211

KeyCDN

SEPTEMBER 12, 2019

The PHP library for the API is available on GitHub. The main reason is because it decreases the latency to the user where they are located by serving your images from a POP physically closest to them. Depending on the image and format, reductions in size of up to 70% are possible. KB (30%) without losses.

Social Media 106

Social Media Media Google Website 106

CSS - Tricks

MARCH 16, 2020

Google Lighthouse is one of the best-automated tools available on a web developer's utility belt. In addition, Lighthouse also collects other metrics that aren’t listed in this part of the report but are still in an appropriate format to be included in the comparison. How should the metric comparison be output to the console?

Google 82

Google Latency Website Metrics 82

Percona

MARCH 29, 2023

Snappy Data size: 14.95GB Data size after compression: 10.75GB Avg latency: 12.22ms Avg cpu usage: 34% Avg insert ops rate: 16K/s Time taken to import 120000000 document: 7292 seconds Zstd (with default compression level 6) Data size: 14.95GB Data size after compression: 7.69GB Avg latency: 12.52ms Avg cpu usage: 31.72% Avg insert ops rate: 14.8K/s

Storage 105

Storage Network Open Source Latency 105

Dynatrace

JANUARY 31, 2024

At its core, data observability is about ensuring the availability, reliability, and quality of data. 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.

DevOps 197

DevOps Analytics Airlines Metrics 197

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 ! This is shared between all clients, so a pooled connection is available to all clients. High availability. PostgreSQL Connection Pooling Series.

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

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. The workflow is initiated. Assembly for two of the metrics (e.g.

Media 171

Media Innovation Metrics Latency 171

CSS Wizardry

AUGUST 13, 2019

There was no appetite from them to do so, so I decided to make it all available for free anyway—a faster web benefits everyone. 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). Next up, we get sent to fonts.[client].com

Latency 203

Latency Cache Strategy Media 203

Dynatrace

SEPTEMBER 25, 2019

Therefore, it requires multidimensional and multidisciplinary monitoring: Infrastructure health —automatically monitor the compute, storage, and network resources available to the Citrix system to ensure a stable platform. Synthetic monitoring: Citrix login availability and performance. Dynatrace Extension: NetScaler performance.

Latency 118

Latency Performance Virtualization Infrastructure 118

Percona

DECEMBER 11, 2023

DLVs are particularly advantageous for databases with large allocated storage, high I/O per second (IOPS) requirements, or latency-sensitive workloads. The DLV, of course, affects the WRITE operations the most, and hence, the write-only test should be given the most consideration for the comparison of the DLV configuration vs. standard RDS.

AWS 93

AWS Benchmarking Performance Traffic 93

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. As I'm interested in the relative comparison I can just compare the total runtimes (the "real" time) for the same result. Checking those available: $ cat /sys/devices/system/clocksource/clocksource0/available_clocksource.

Speed 126

Speed Java AWS Virtualization 126

KeyCDN

FEBRUARY 4, 2021

For example, if a lookup fails and times out to your first DNS server it queries the next DNS server until the correct IP address is returned, or it is unable to resolve as seen in the infamous "This webpage is not available" error below. DNS speed comparison report Who offers the best free DNS? They do quite well actually.

Cache 134

Cache Website Internet Internet 134

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. However, consistency is a very expensive thing in distributed systems, so it can be traded not only to availability. Consistency.

Database 213

Database Latency C++ Scalability 213

Adrian Cockcroft

JANUARY 20, 2023

In comparison, for Linpack Frontier operates at 68% of peak capacity. I have always been particularly interested in the interconnects and protocols used to create clusters, and the latency and bandwidth of the various offerings that are available.

Architecture 52

Architecture Latency Benchmarking AWS 52

IO River

NOVEMBER 2, 2023

This type of traffic originates directly from the server, making it more challenging to handle due to latency and server load considerations; it’s hard but not impossible. Statistics reveal that a 1% improvement in latency can lead to a 3% increase in viewer engagement, highlighting its significance in live content delivery.3.

Architecture 52

Architecture Performance Internet Internet 52

IO River

NOVEMBER 2, 2023

This type of traffic originates directly from the server, making it more challenging to handle due to latency and server load considerations; it’s hard but not impossible. This is mainly because video files are notably bulkier than a simple text-based API request, which, in comparison, would be more like a droplet than an entire river.

Architecture 52

Architecture Performance Internet Internet 52

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 Why is that?

Tuning 133

Tuning Cache Servers Benchmarking 133

Smashing Magazine

AUGUST 10, 2023

Even with all of the available tools at my disposal, I still find myself reaching for several of them. In contrast, tools like DebugBear and WebPageTest use more realistic throttling that accurately reflects network round trips on a higher-latency connection. Lighthouse results. Real usage data would be better, of course.

Speed 81

Speed Monitoring Testing Network 81

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.

Open Source 154

Open Source Efficiency C++ Speed 154

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.

Latency 40

Latency Code Metrics Testing 40

Dynatrace

JANUARY 15, 2020

Having released this functionality in an Preview Release back in September 2019, we’re now happy to announce the General Availability of our Citrix monitoring extension. Synthetic monitoring: Citrix login availability and performance. Comparison of these metrics between VDAs characterizes load balancing efficiency. Citrix VDA.

Latency 36

Latency Performance Virtualization Infrastructure 36

The Netflix TechBlog

JANUARY 24, 2022

Technically, “performance” metrics are those relating to the responsiveness or latency of the app, including start up time. While test metrics and metrics collected during real use do not lend themselves to direct comparison, measuring the relative change in metrics in pre-production builds can help us to anticipate regressions in production.

Performance 199

Performance Metrics Performance Testing Testing 199

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

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. As I'm interested in the relative comparison I can just compare the total runtimes (the "real" time) for the same result. A quick check of basic performance statistics showed over 30% higher CPU consumption. us on Ubuntu.

Speed 52

Speed Java AWS Virtualization 52

Alex Russell

APRIL 29, 2021

This post mines publicly available data on the pace of compatibility fixes and feature additions to assess the claim. The information it captures is, however, available going back somewhat further, providing a fuller picture of the trend lines of engine completeness. Count of APIs available from JavaScript by Web Confluence.

Media 145

Media Games Education Engineering 145