Brendan Gregg

JUNE 30, 2018

These have inspired me to summarize another performance activity: evaluating benchmark accuracy. Accurate benchmarking rewards engineering investment that actually improves performance, but, unfortunately, inaccurate benchmarking is more common. If the benchmark reported 20k ops/sec, you should ask: why not 40k ops/sec?

Benchmarking 54

Benchmarking Latency Cache Network 54

Percona

JULY 25, 2023

The data is internally inconsistent because the server concurrently modifies the data files while they are being copied. The changes done by an uncommitted transaction can be flushed or written to the redo log by the server. Initializing a DD engine and the cache adds complexity and other server dependencies.

Cache 87

Cache Benchmarking Servers Design 87

Brendan Gregg

MARCH 16, 2024

Only in extreme circumstances does the cost (in processor time and I-cache footprint) translate to a tangible benefit - circumstances which usually resort to hand-coded assembly anyway. It shouldn't be 10%, unless it's cache effects. Back-end servers. Don't blame the straw, in this case, don't blame the frame pointers.

Java 145

Java Cache Google Hardware 145

Brendan Gregg

JUNE 29, 2018

These have inspired me to summarize another performance activity: evaluating benchmark accuracy. Accurate benchmarking rewards engineering investment that actually improves performance, but, unfortunately, inaccurate benchmarking is more common. If the benchmark reported 20k ops/sec, you should ask: why not 40k ops/sec?

Benchmarking 40

Benchmarking Latency Cache Network 40

HammerDB

JUNE 27, 2022

HammerDB is a software application for database benchmarking. Databases are highly sophisticated software, and to design and run a fair benchmark workload is a complex undertaking. The Transaction Processing Performance Council (TPC) was founded to bring standards to database benchmarking, and the history of the TPC can be found here.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Percona

MARCH 17, 2023

Planning for resources of a PMM Server host instance can be tricky because the numbers can change depending on the DB instances being monitored by PMM. We have tested PMM version 2.33.0 Capacity planning and setup details We used a dedicated 32-core CPU and 64GB of RAM for our testing.

Monitoring 103

Monitoring Scalability Cache Database 103

Percona

JUNE 22, 2023

As a MySQL database administrator, keeping a close eye on the performance of your MySQL server is crucial to ensure optimal database operations. However, simply deploying a monitoring tool is not enough; you need to know which Key Performance Indicators (KPIs) to monitor to gain insights into your MySQL server’s health and performance.

Performance 107

Performance Monitoring Traffic Database 107

HammerDB

APRIL 19, 2023

Therefore, before we attempt to measure our database performance, we should know the system or cloud instance to be tested in detail. For the network, we can use Iperf to assess the network bandwidth between the client and the database server to ensure it will be enough to meet our peak requirement. For storage, FIO is generally used.

Performance 54

Performance Benchmarking Cache Storage 54

Percona

SEPTEMBER 1, 2023

MySQL server performance can sometimes be perplexing, and if you’ve ever wondered about the role of triggers in influencing your MySQL server’s memory allocation, this post is for you. Testing and Validation : Thorough testing and validation are essential when working with triggers, especially in a production environment.

Cache 62

Cache Database Games Healthcare 62

SQL Performance

NOVEMBER 18, 2019

Migrating an on-premises SQL Server instance to an Azure Virtual Machine (VM) is a common method to migrate to Azure. Compute optimized – High CPU-to-memory ration, medium traffic web servers and application servers. Certain sizes also support premium storage, which should be a requirement for a production SQL Server.

Azure 76

Azure Benchmarking Storage Virtualization 76

KeyCDN

DECEMBER 8, 2022

A WordPress website comprises many parts, including web servers and their settings, different plugins, and themes. Many factors affect the speed of your WordPress website; some of them are: Your web host Server-side optimizations (PHP version, compression, caching, etc.) It is challenging to figure out why WordPress is slow.

Cache 52

Cache Website Speed Website Performance 52

Percona

MARCH 23, 2023

Hardware Memory The amount of RAM to be provisioned for database servers can vary greatly depending on the size of the database and the specific requirements of the company. Some servers may need a few GBs of RAM, while others may need hundreds of GBs or even terabytes of RAM. Benchmark before you decide.

Performance 127

Performance Hardware Tuning Storage 127

Smashing Magazine

AUGUST 9, 2022

PageSpeed Compare is a page speed evaluation and benchmarking tool. It also lists cached resources and identifies unused Javascript. It graphs server, network, CSS, Javascript, critical content, and image optimizations to show the potential savings you could gain by incorporating fixes into your site. PageSpeed Compare.

Performance 130

Performance Benchmarking Website Metrics 130

Dotcom-Montior

AUGUST 5, 2020

Running a website speed test can help to determine what factors may be slowing your pages down. There are tools available such as Dotcom-Monitor’s free speed test that you can utilize to gauge performance. The tool gives you the option to run a speed test from 25 locations around the world. Optimize Your Pages.

Website 92

Website Speed Cache Traffic 92

Percona

MAY 1, 2023

Connection pooling: Minimizing connection overhead and improving response times for frequently accessed data by implementing mechanisms for connection pooling and caching strategies. PostgreSQL performance optimization is an ongoing process involving monitoring, benchmarking, and adjustments to maintain high-performing PostgreSQL databases.

Tuning 52

Tuning Efficiency Database Performance 52

KeyCDN

AUGUST 29, 2019

Running speed tests with tools like Google PageSpeed Insights , WebPageTest , or KeyCDN’s Website Speed Test are always a good way to help gauge your website’s performance. We decided to experiment with our test site and after some tweaking, we were easily able to achieve a 100/100 score on PageSpeed Insights.

Google 103

Google Cache Speed Analytics 103

ScaleOut Software

MAY 15, 2014

For example, the IMDG must be able to efficiently create millions of objects in each server to make use of its huge storage capacity. Given all this, we thought it would be a good opportunity to see how we are doing relative to the competition, and in particular, relative to Microsoft’s AppFabric caching for Windows on-premise servers.

Cache 40

Cache Servers Network Design 40

MachMetrics

DECEMBER 14, 2019

How fast is the average time to first byte (server delay)? How long is the average server delay? It is typically reduced via server-side optimizations, such as enabling caching and database indexes. How do you test your site against the best practices? How fast is the average page load time in 2020?

Best Practices 105

Best Practices Speed Mobile Google 105

HammerDB

NOVEMBER 5, 2018

If you are new to running Oracle, SQL Server, MySQL and PostgreSQL TPC-C workloads with HammerDB and have needed to investigate I/O performance the chances are that you have experienced waits on writing to the Redo, Transaction Log or WAL depending on the database you are testing. Logging Waits. so what are your options?

Benchmarking 40

Benchmarking Database C++ Virtualization 40

Percona

JUNE 22, 2023

Load balancing : Requests are evenly distributed across multiple database servers, ensuring the system remains operational even if one server fails. Automated failover : To keep the database operational and minimize downtime, it automatically switches to a backup server if the primary server fails.

Availability 111

Availability Database Open Source Hardware 111

Smashing Magazine

JANUARY 11, 2021

Build Optimizations JavaScript modules, module/nomodule pattern, tree-shaking, code-splitting, scope-hoisting, Webpack, differential serving, web worker, WebAssembly, JavaScript bundles, React, SPA, partial hydration, import on interaction, 3rd-parties, cache. You can then mimic the 90th percentile’s experience for testing.

Performance 145

Performance Cache Media Metrics 145

Percona

MARCH 20, 2023

When deciding what to pick, there are many things to consider, like where the proxy needs to be, if it “just” needs to redirect the connections, or if more features need to be in, like caching and filtering, or if it needs to be integrated with some MySQL embedded automation. micro) The tests We will have very simple test cases.

Games 123

Games Latency Traffic Cache 123

SQL Server According to Bob

JANUARY 11, 2020

Microsoft SQL Server I/O Basics Author: ​​ Bob Dorr, Microsoft SQL Server Escalation Published: ​​ December, 2004 SUMMARY: ​​ Learn the I/O requirements for Microsoft SQL Server database file operations. This will help you increase system performance and avoid I/O environment errors.

Servers 40

Servers Cache Media Hardware 40

CSS - Tricks

JUNE 5, 2020

It took a few months for major CDN players to support Brotli, but meanwhile it was seeing widespread adoption in tools, services, browsers and servers. The service categorized all the optimizations in three groups consisting of several “Content,” “Delivery,” and “Cache” optimizations. This was really disappointing for me.

Cache 79

Cache Website Servers Open Source 79

SQL Server According to Bob

JANUARY 11, 2020

Microsoft, ​​ Windows, ​​ Windows NT, ​​ and Windows Server ​​ are registered trademarks of Microsoft Corporation in the United States and/or other countries. The names of actual companies and products mentioned herein may be the trademarks of their respective owners.

Servers 40

Servers Cache Database Media 40

Smashing Magazine

JUNE 2, 2021

Today, the website is much faster and ranks highly in various showcases and benchmarks. Add to that the payment provider drop-in, and you have yourself some pages that no one will want to touch once they have been properly tested and work. This Lighthouse mobile report for the front page showed that a lot of work needed to be done.

Performance 115

Performance Cache Website Mobile 115

Smashing Magazine

JANUARY 6, 2020

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? Testing And Monitoring. You can then mimic the 90th percentile’s experience for testing. Table Of Contents.

Performance 145

Performance Cache Network Metrics 145

Percona

AUGUST 31, 2018

Bear in mind that while optimizing PostgreSQL server configuration improves performance, a database developer must also be diligent when writing queries for the application. This parameter sets how much dedicated memory will be used by PostgreSQL for cache. It is just a guideline, not the exact allocated memory or cache size.

Tuning 57

Tuning Database Performance Benchmarking 57

Brendan Gregg

FEBRUARY 9, 2018

Much of my testing was on Linux 4.14.11 This overhead can be reduced by A) pcid, fully available in Linux 4.14, and B) Huge pages. - **Cache access pattern**: the overheads are exacerbated by certain access patterns that switch from caching well to caching a little less well. and 4.14.12 In more detail: ## 1. DTLB and 4.4%

Performance 75

Performance Benchmarking Cache Tuning 75

Alex Russell

MARCH 6, 2021

A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. Using a global ASP as a benchmark can further mislead thanks to the distorting effect of ultra-high-end prices rising while shipment volumes stagnate. The Moto G4 , for example.

Performance 124

Performance Network Cache Metrics 124

Smashing Magazine

JUNE 1, 2022

You’ve tested and retested the site for errors. These services use requests to external hosts (not servers you control) to deliver JavaScript framework libraries, custom fonts, advertising content, marketing analytics trackers, and more. They are more of a benchmark than a true measurement of real user experience.

Website 131

Website Design Network Best Practices 131

Smashing Magazine

JUNE 26, 2019

Instead, I suggest that web designers use another Google testing tool called Test My Site. Test My Site is a mobile page speed testing tool from Think with Google. Source: Test My Site ) ( Large preview ). All you need to do is enter your domain name into the field and let the test run. Minification.

Website 110

Website Speed Mobile Design 110

The Morning Paper

MAY 14, 2019

Last time around we looked at the DeathStarBench suite of microservices-based benchmark applications and learned that microservices systems can be especially latency sensitive, and that hotspots can propagate through a microservices architecture in interesting ways. ASPLOS’19. Distributed tracing and instrumentation.

Big Data 45

Big Data Cloud Performance Hardware 45

Brendan Gregg

FEBRUARY 8, 2018

Much of my testing was on Linux 4.14.11 This overhead can be reduced by A) pcid, fully available in Linux 4.14, and B) Huge pages. - **Cache access pattern**: the overheads are exacerbated by certain access patterns that switch from caching well to caching a little less well. and 4.14.12 In more detail: ## 1. DTLB and 4.4%

Performance 40

Performance Benchmarking Cache Tuning 40

Alex Russell

OCTOBER 22, 2017

Budgets are scaled to a benchmark network & device. Automating testing against an objective baseline. Late-loading JavaScript can cause “server-side rendered” pages to fail in infuriating ways. Deciding what benchmark to use for a performance budget is crucial. What’s going on here?

Performance 68

Performance Benchmarking Network Mobile 68

High Scalability

NOVEMBER 25, 2019

Edge caching. In general, Egnyte connect architecture shards and caches data at different levels based on: Amount of data. Application Servers. Nginx for disk based caching. Apache FTP server. Native desktop and server hosted clients that allow both interactive as well as hybrid sync access to the entire namespace.

Architecture 52

Architecture Cache Azure Storage 52