Jos

JUNE 2, 2018

Web Performance is not only about understanding what makes a site fast. Performance is a feature and needs to be prioritized as such. Performance is a topic that has interested me for a long time. Moving over to web, the performance problems are different. This is not a post explaining why web performance is important.

Performance 237

Performance Speed Google Media 237

Dynatrace

JANUARY 16, 2023

The study analyzes factual Kubernetes production data from thousands of organizations worldwide that are using the Dynatrace Software Intelligence Platform to keep their Kubernetes clusters secure, healthy, and high performing. The report also reveals the leading programming languages practitioners use for application workloads.

Open Source 342

Open Source Java Operating System Programming 342

The Netflix TechBlog

APRIL 27, 2023

Moreover, common database optimizations like caching recently queried data don’t really work for alerting queries because, generally speaking, the last received datapoint is required for correctness. It became clear to us that we needed to solve the scalability problem with a fundamentally different approach.

Storage 288

Storage Cache Metrics Database 288

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

Percona

FEBRUARY 15, 2023

When you want to know if a key is present or not in the list, you run it through the hash function and check if the corresponding bits in the bitmap are “1” or “0” If one of the bits is “0”, you know for sure the key is not in the list. If all the bits are “1”, the value may be present.

Storage 127

Storage Tuning Cache Engineering 127

Scalegrid

JANUARY 5, 2024

Despite initial investment costs, DBMS presents long-term savings and improved efficiency through automated processes, efficient query optimizations, and scalability, contributing to enhanced decision-making and end-user productivity.

Efficiency 147

Efficiency Storage Database Scalability 147

Speed Curve

FEBRUARY 5, 2024

That performance golden rule still holds true today. Charlie Vazac introduced server timing in a Performance Calendar post circa 2018. Caching the base page/HTML is common, and it should have a positive impact on backend times. In the case of a cache miss, this should be zero.) (In the case of a cache miss, this should be zero.)

Servers 57

Servers Cache Retail Benchmarking 57

Randon ASCII

JANUARY 12, 2022

It was a lot of fun, and the work was appreciated, so a few months before the console shipped I got a present from the leadership of the project – an entire silicon wafer of Xbox 360 CPUs! The Xbox 360 CPU had three PowerPC cores and a 1 MB L2 cache and these features are clearly visible on the wafer. register files? arithmetic units?)

Cache 126

Cache Latency Benchmarking Hardware 126

Brendan Gregg

FEBRUARY 28, 2023

At USENIX SREcon22 APAC I gave the opening keynote on the future of computer performance, rounding up the latest developments and making predictions of where I see things heading. This talk originated from my updates to Systems Performance 2nd Edition , and this was the first time I've given this talk in person!

Performance 52

Performance Latency Cache Virtualization 52

Smashing Magazine

NOVEMBER 8, 2021

We work with millions of merchants, and as many companies, we obsess about storefront performance. We obsess even more about finding the optimal balance between performance, capabilities, and merchants’ business objectives. I work at Shopify, an all-in-one commerce platform to start, run, and grow a business. Large preview ).

Cache 135

Cache Best Practices Strategy Servers 135

Brendan Gregg

AUGUST 29, 2021

A service team was debugging a performance issue and noticed it coincided with a high rate of paging. I was asked to help, and used a variety of performance tools to solve this including those that use eBPF and Ftrace. Reads usually have apps waiting on them; writes may not (write-back caching). Counting cache functions.

Cache 105

Cache C++ AWS Latency 105

Jos

JUNE 2, 2018

Web Performance is not only about understanding what makes a site fast. Performance is a feature and needs to be prioritized as such. Performance is a topic that has interested me for a long time. Moving over to web, the performance problems are different. These days we have more and better tools to audit our performance.

Performance 130

Performance Speed Google Media 130

The Morning Paper

OCTOBER 18, 2020

The resulting performance depends on the quality of the model predictions, a higher quality model leads to fewer collisions, and fewer out-of-order items to be patched in the final Insertion Sort pass. If it’s high performance you’re after, you can’t ignore mechanical sympathy. Sympathy for the machine.

Cache 137

Cache C++ Java Tuning 137

The Morning Paper

MARCH 8, 2020

This paper presents Snowflake design and implementation along with a discussion on how recent changes in cloud infrastructure (emerging hardware, fine-grained billing, etc.) The caching use case may be the most familiar, but in fact it’s not the primary purpose of the ephemeral storage service. of the persistent data on average.

Storage 112

Storage Engineering Cache Serverless 112

SQL Performance

MARCH 29, 2022

Simple parameterization has a number of quirks in this area, which can result in more parameterized plans being cached than expected, or finding different results compared with the unparameterized version. Reputation = 252552 ; These statements result in six cached plans, three Adhoc and three Prepared : Different guessed types.

Cache 90

Cache Servers Database Testing 90

CSS Wizardry

AUGUST 7, 2019

Strap yourself in; here is a non-exhaustive list presented in no particular order: Latency: As above, we’re counting a trip out to and a return trip from the server. only to find that the resource they’re requesting isn’t in that PoP ’s cache. Rather, your TTFB represents any number of the items present above.

Latency 269

Latency Ecommerce Servers Mobile 269

The Netflix TechBlog

AUGUST 10, 2020

Performance results In this section, we present an overview of the performance of our new encodes compared to our existing H.264 In addition, footprint savings will allow more content to be stored in edge caches, thus contributing to an improved experience for our members. as a result of the reduction in average bitrates.

Innovation 239

Innovation Traffic Network Efficiency 239

KeyCDN

DECEMBER 8, 2022

Unoptimized content could also be one of the reasons why your WordPress website is not performing as per your expectations. While this was the case in the past, this won't be an accurate statement for the present WordPress. The updates of WordPress also include security patches, performance fixes, and the latest features.

Cache 52

Cache Website Speed Website Performance 52

MachMetrics

DECEMBER 27, 2019

Offering 20 chapters with insights into Page Content, User Experience, Content Publishing, and Content Distribution, it can also be overwhelming, so we’ll be summarizing the web performance section in an easy-to-understand manner. We’ll be diving into Chapter 7 – Performance. 20% of sites are considered slow.

Performance 52

Performance Speed Website Mobile 52

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. However, building and utilizing HCM presents challenges, including interconnecting various memory technologies (e.g.,

Latency 52

Latency Hardware Cache Architecture 52

Percona

MAY 2, 2023

ChatGPT: The InnoDB buffer pool is used by MySQL to cache frequently accessed data in memory. Keep in mind that setting the buffer pool size too high may result in other processes on your server competing for memory, which can impact performance. 16) and monitoring the server’s performance.

Social Media 121

Social Media Database Servers Cache 121

The Netflix TechBlog

NOVEMBER 3, 2022

In the time since it was first presented as an advanced Mesos framework, Titus has transparently evolved from being built on top of Mesos to Kubernetes, handling an ever-increasing volume of containers. This blog post presents how our current iteration of Titus deals with high API call volumes by scaling out horizontally. of the data.

Cache 224

Cache Latency Traffic Systems 224

Alex Russell

MARCH 31, 2022

Browsers will cache tools popular among vocal, leading-edge developers. There's plenty of space for caching most popular frameworks. The best available proxy data also suggests that shared caches would have a minimal positive effect on performance. Suppose a user has only downloaded part of the cache.

Cache 82

Cache Government Traffic Network 82

ACM Sigarch

MARCH 18, 2019

This Part 1 discusses Bottleneck Analysis and Little’s Law, while Part 2 presents the M/M/1 Queue. To this end, we present three simple models that we find useful like Amdahl’s Law, split here into two blog posts. With two blog posts, we argue for more use of simple models beyond Amdahl’s Law. Answered in Part 2.).

Systems 60

Systems Latency Performance Analytics 60

SQL Server According to Bob

NOVEMBER 8, 2016

Note: We received feedback that there was some confusion on us calling this functionality “tail of the log caching” because our documentation and prior history has referred to the tail of the log as the portion of the hardened log that has not been backed up. Tail Of Log Caching.

Cache 40

Cache Servers Media Storage 40

Percona

NOVEMBER 7, 2023

This book has five major sections on MVCC and Isolation (108 pages), Buffer Cache and WAL (53 pages), Locks (42 pages), Query Execution (154 pages), and the types of indexes (127 pages). The author starts with an overview of the operations performed by the WAL and proceeds into the logical structure. Version 14?

Cache 87

Cache Servers Operating System Database 87

Percona

SEPTEMBER 28, 2023

Whenever you install your favorite MySQL server on a freshly created Ubuntu instance, you start by updating the configuration for MySQL, such as configuring buffer pool, changing the default datadir director, and disabling one of the most outstanding features – query cache. This file is present in /proc/$pid/oom_score_adj.

Servers 112

Servers Best Practices Database Open Source 112

ACM Sigarch

MARCH 25, 2019

Part 1 previously discussed Bottleneck Analysis and Little’s Law, while this post (Part 2) presents the M/M/1 Queue. It also presented Bottleneck Analysis and Little’s Law that can give initial answers to questions like: What is the maximum throughput through several subsystems in series and parallel?

Systems 53

Systems Latency Performance C++ 53

SQL Performance

MAY 16, 2019

Achieving minimal logging using INSERT.SELECT into an empty clustered index target is not quite as simple as described in the Data Performance Loading Guide. The Data Loading Performance Guide contains a high-level summary of the conditions required for minimal logging into clustered tables: This post is concerned with the top row only.

Cache 67

Cache Servers Testing Storage 67

The Netflix TechBlog

MARCH 5, 2019

the order of the rows on your Netflix home page, issuing content licenses when you click play, finding the Open Connect cache closest to you with the content you requested, and many more). In the last section, we will attempt to feed your curiosity by presenting a set of opportunities that will drive our next wave of impact for Netflix.

Infrastructure 182

Infrastructure Cloud Scalability AWS 182

Dynatrace

OCTOBER 15, 2020

Organizations that want a high-performance language with a great ecosystem often write their applications in Go. The web request service hosted by the foxy process is detected and presented on the foxy process page. From http.Transport documentation : By default, Transport caches connections for future reuse. Dynatrace news.

Transportation 184

Transportation Monitoring Metrics Code 184

SQL Performance

OCTOBER 20, 2022

Rows qualifying for the update must continue to qualify until the change is performed and committed. When a blocking operator is present (for Halloween protection or any other reason), this scheme breaks down because more than one row can be read before any changes are made. Reading data. Lock classes may be needed when reading data.

Testing 91

Testing Servers Cache Engineering 91

Brendan Gregg

AUGUST 29, 2021

A service team was debugging a performance issue and noticed it coincided with a high rate of paging. I was asked to help, and used a variety of Linux performance tools to solve this including those that use eBPF and Ftrace. Reads usually have apps waiting on them; writes may not (write-back caching). This is "cache busting."

Cache 40

Cache C++ AWS Systems 40

Tim Kadlec

JUNE 21, 2022

At #SmashingConf San Francisco , Robin Marx gave a presentation about HTTP/3. The browser stores alt-svc info in alt-svc cache. Testing the Performance of HTTP/3. Protocol performance is rarely low0hanging fruit. Here are my notes. All major browsers support thanks to iOS starting with version 16. What and Why?

Network 64

Network Mobile Google Cache 64

Testsigma

JUNE 3, 2021

These software errors are usually uncovered during functionality testing, mostly can be present as: Difficult/ confusing functionality: If the user is unable to understand or perform a function on the application, then it should change. Still, we may face the below-mentioned errors while performing software testing.

Software 82

Software Software Testing Hardware 82

Tim Kadlec

APRIL 12, 2020

A couple of months ago, I was helping one company boost its performance online. The cache hit was very low (a topic for another day), and whenever the server had to provide a fresh version of the page, it was taking an unacceptably long time more often than not. (The Here’s an example.

Tuning 69

Tuning Cache Network Servers 69

The Morning Paper

DECEMBER 1, 2019

Memory might be durable, but… …it is expected that caches and registers will remain volatile. Moreover, for better performance, the processor may change the order in which writes reach the NVRAM, making it difficult for the NVRAM to even reflect a consistent prefix of the computation. Performance evaluation.

Efficiency 60

Efficiency Cache C++ Performance 60