Percona

JUNE 22, 2023

This includes metrics such as query execution time, the number of queries executed per second, and the utilization of query cache and adaptive hash index. query cache: Disable (query_cache_size: 0, query_cache_type:OFF) innodb_adaptive_hash_index: Check adaptive hash index usage to determine its efficiency.

Performance 102

Performance Monitoring Traffic Database 102

Percona

DECEMBER 23, 2022

The use case is the TPC-C benchmark but executed not on a high-end server but on a lower-spec virtual machine that is I/O limited like for example, with AWS EBS volumes. I wanted most of the memory to be available for the file cache, where the compressed SST files will be cached. The following figure illustrates the impacts.

Storage 55

Storage Cache C++ Virtualization 55

Percona

SEPTEMBER 1, 2023

A finely tuned database processes queries more efficiently, leading to swifter results. Inefficient query design, such as utilizing SELECT * instead of specifying necessary columns, can escalate data transfer and processing overhead. Another highly beneficial caching method is key-value caching.

Tuning 52

Tuning Database Performance Hardware 52

KeyCDN

DECEMBER 8, 2022

Many factors affect the speed of your WordPress website; some of them are: Your web host Server-side optimizations (PHP version, compression, caching, etc.) So let's discuss the process one step at a time. This process can consume a lot of your time if you have implemented a lot of plugins on your website.

Cache 52

Cache Website Speed Website Performance 52

Dotcom-Montior

AUGUST 5, 2020

A lot of the focus goes into the practice and processes of driving traffic to your site from an SEO perspective, but what if when visitors get to your site, they have a less than ideal experience? After all the elements are processed, a tree structure of all these objects is created and the page can be displayed.

Website 92

Website Speed Cache Traffic 92

The Morning Paper

AUGUST 29, 2019

use the TPC-H benchmark to assess Redshift, Redshift Spectrum, Athena, Presto, Hive, and Vertica to find out what works best and the trade-offs involved. My key takeaways as a TL;DR: Store your data in S3 Use portable data format that gives you future flexibility to process it with multiple different systems (e.g.

Architecture 76

Architecture Cloud Storage Serverless 76

Percona

AUGUST 31, 2018

This parameter sets how much dedicated memory will be used by PostgreSQL for cache. If your working set of data can easily fit into your RAM, then you might want to increase the shared_buffer value to contain your entire database, so that the whole working set of data can reside in cache. wal_buffers. effective_cache_size.

Tuning 54

Tuning Database Performance Benchmarking 54

Scalegrid

MARCH 28, 2024

Key Takeaways Redis offers complex data structures and additional features for versatile data handling, while Memcached excels in simplicity with a fast, multi-threaded architecture for basic caching needs. Redis is better suited for complex data models, and Memcached is better suited for high-throughput, string-based caching scenarios.

Cache 130

Cache Storage Scalability Architecture 130

HammerDB

JULY 5, 2022

Python is a popular programming language, especially for beginners, and consequently we see it occurring in places where it just shouldn’t be used, such as database benchmarking. We use stored procedures because, as the introductory post shows, using single SQL statements turns our database benchmark into a network test).

Benchmarking 98

Benchmarking Database C++ Virtualization 98

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

Scalegrid

JULY 29, 2020

It uses only one process which makes it very lightweight. If we require N parallel connections, this forks N child processes. By default, there are 32 child processes that are forked. Pgpool-II defines one process per child process. We cannot control which child process a client connects to. Not supported.

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

Percona

APRIL 7, 2023

To illustrate this, I ran the Sysbench-TPCC synthetic benchmark against two different GCP instances running a freshly installed Percona Server for MySQL version 8.0.31 In MySQL, considering the standard storage engine, InnoDB , the data cache is called Buffer Pool. In PostgreSQL, it is called shared buffers.

Tuning 133

Tuning Cache Servers Benchmarking 133

Percona

SEPTEMBER 1, 2023

Completion of Trigger : Once the trigger’s code is executed for one row, it proceeds to the next affected row (if any) and repeats the process. Scope of Data : Row-level triggers work with individual row data, making them suitable for tasks that require row-level processing. Don’t let hidden database costs haunt you.

Cache 59

Cache Database Games Healthcare 59

CSS - Tricks

APRIL 1, 2021

Google’s industry benchmarks from 2018 also provide a striking breakdown of how each second of loading affects bounce rates. This is the process of turning HTML, CSS and JavaScript into a fully fleshed out, interactive website. This process can be “blocked” if it has to wait for resources to load before it runs.

Cache 92

Cache Social Media Media Website 92

Percona

MARCH 23, 2023

As datasets continue to grow in size, the amount of RAM required to store and process these datasets also increases. By caching hot datasets, indexes, and ongoing changes, InnoDB can provide faster response times and utilize disk IO in a much more optimal way. Benchmark before you decide. Transparent huge pages (THP) disabled.

Performance 123

Performance Hardware Tuning Storage 123

HammerDB

NOVEMBER 5, 2018

This post at an entry-level discusses the options you have to improve log throughput in your benchmark environment. . To illustrate the data reads on Oracle we can flush the buffer cache. Consequently we now need to increase the buffer cache in size if we are to see more CPU activity. so what are your options?

Benchmarking 40

Benchmarking Database C++ Virtualization 40

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., A typical architecture diagram for one of these services looks like this: Suitably armed with a set of benchmark microservices applications, the investigation can begin! ASPLOS’19.

Open Source 61

Open Source Hardware Benchmarking Systems 61

John McCalpin

APRIL 2, 2020

To show that I can criticize my own work as well, here I show that sustained memory bandwidth (using an approximation to the STREAM Benchmark ) is also inadequate as a single figure of metric. (It Here I assumed a particular analytical function for the amount of memory traffic as a function of cache size to scale the bandwidth time.

Benchmarking 59

Benchmarking Performance Latency Architecture 59

Alex Russell

APRIL 29, 2021

As an engineer on a browser team, I'm privy to the blow-by-blow of various performance projects, benchmark fire drills, and the ways performance marketing (deeply) impacts engineering priorities. With each team, benchmarks lost are understood as bugs. Helps media apps on the web save battery when doing video processing.

Media 145

Media Games Education Engineering 145

Adrian Cockcroft

JANUARY 20, 2023

Here’s some predictions I’m making: Jack Dongarra’s efforts to highlight the low efficiency of the HPCG benchmark as an issue will influence the next generation of supercomputer architectures to optimize for sparse matrix computations. In early January a related paper was published by Satoshi Matsuoka et. petaflops, which is 0.8%

Architecture 52

Architecture Latency Benchmarking AWS 52

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. Advances in browser content processing. 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.

Performance 124

Performance Network Cache Metrics 124

CSS - Tricks

JUNE 5, 2020

The service categorized all the optimizations in three groups consisting of several “Content,” “Delivery,” and “Cache” optimizations. In my benchmarks, Brotli:11 takes several hundred milliseconds to compress a single minified jQuery file. The only problem was the fear that Brotli could kill all our processing resources.

Cache 79

Cache Website Servers Open Source 79

SQL Performance

DECEMBER 17, 2019

Microsoft's Mine Tokus has a good article where she ran a series of scaled down TPC-E benchmarks against an E64s_v3 VM that was using the older Broadwell processor. GHz, 128MB of L3 cache, 128 PCIe 4.0 Tim Radney has a great article about this process (for storage). lanes, and 2TB of RAM capacity.

Azure 72

Azure Virtualization Servers Storage 72

Alex Russell

OCTOBER 22, 2017

Budgets are scaled to a benchmark network & device. Answering it requires an understanding of how browsers process resources (which differs by type) and the concept of the critical path. This input processing happens on document’s main thread , where JavaScript runs. ” A good question! Construction of DOM.

Performance 68

Performance Benchmarking Network Mobile 68

SQL Server According to Bob

JANUARY 11, 2020

Stable media is commonly physical disk storage, but other devices and certain caching facilities qualify as well. Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. This cache is often supported by a battery-powered backup facility.

Servers 40

Servers Cache Media Hardware 40

Smashing Magazine

JUNE 1, 2022

You can adjust what browser is used, the kind of network connection to employ, the locations to test from, whether or not the browser’s cache is empty or full, how frequently to take the measurements, and more. They are more of a benchmark than a true measurement of real user experience. Large preview ). What To Measure.

Website 131

Website Design Network Best Practices 131

Percona

JUNE 22, 2023

Failover mechanisms The primary purpose of failover — the automatic process of switching from a failed or offline database server to a standby or backup server — is to ensure user access and functionality of databases without interruption, even if there is a hardware or software failure. Each node has its own cache buffer.)

Availability 104

Availability Database Open Source Hardware 104

SQL Server According to Bob

AUGUST 23, 2021

The job object can be configured to limit the resource usage on the system, including which nodes and CPUs the processes started under its control​​ may ​​ utilize. The affinity mask for the job would be 00001100 indicating CPU 2 and3 are to be used for processes running in this job context.

Servers 40

Servers Azure Operating System Database 40

SQL Server According to Bob

JANUARY 11, 2020

DBCC Page Auditing DBCC page auditing is the process of executing common DBCC consistency checks as pages are read from disk. Time of Last Access The time of last access is a caching ​​ algorithm ​​ that enables ​​ cache ​​ entries to be ordered by their ​​ access times.

Servers 40

Servers Cache Database Media 40

SQL Performance

JULY 16, 2019

One year after a Tock release Intel would take that same microarchitecture (with some minor improvements), and use a shrink of the manufacturing process to create a Tick release. The Tick-Tock release cycle basically fell apart by about 2015 , as Intel was unable to move from a 14nm manufacturing process to a 10nm manufacturing process.

Servers 46

Servers Hardware Architecture Retail 46

Smashing Magazine

JUNE 26, 2019

Let the web developer handle all of the necessary speed optimizations like caching and file minification while you take on the following design tips and strategies: 1. They might not be as exciting to design with, but they won’t force users to sit around and wait for your website to load, costing you visitors and customers in the process.

Website 110

Website Speed Mobile Design 110

John McCalpin

APRIL 25, 2023

For most high-end processors these values have remained in the range of 75% to 85% of the peak DRAM bandwidth of the system over the past 15-20 years — an amazing accomplishment given the increase in core count (with its associated cache coherence issues), number of DRAM channels, and ever-increasing pipelining of the DRAMs themselves.

Benchmarking 97

Benchmarking Cache Latency Tuning 97

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. In fact, choosing the right metric is a process without obvious winners.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

So, if we created an overview of all the things we have to keep in mind when improving performance — from the very start of the process until the final release of the website — what would that list look like? Also, as Patrick Meenan suggested, it’s worth to plan out a loading sequence and trade-offs during the design process.

Performance 145

Performance Cache Network Metrics 145

High Scalability

NOVEMBER 25, 2019

Your Laptop has a filesystem used by hundreds of processes. It is limited by the disk space; it can’t expand storage elastically; it chokes if you run few I/O intensive processes or try collaborating with 100 other users. On prem data processing. Edge caching. Nginx for disk based caching. Disk based caching.

Architecture 52

Architecture Cache Azure Storage 52