SQL Performance

MARCH 17, 2020

This follow-up post revisits the question for SQL Server 2019, using a larger number of rows. It has 32GB RAM, with 24GB available to the SQL Server 2019 instance. The Sort only has 19 rows to process, so it consumes only 1ms or so. Test Environment. The cost threshold for parallelism is set to 50.

Servers 86

Servers Tuning Database Efficiency 86

Smashing Magazine

JANUARY 7, 2019

Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. Front-End Performance Checklist 2019 [PDF, Apple Pages, MS Word]. 2019-01-07T12:00:13+00:00. 2019-04-29T18:34:58+00:00. Vitaly Friedman. Web performance is a tricky beast, isn’t it? Table Of Contents. Getting Ready: Planning And Metrics.

Performance 103

Performance Cache Metrics Network 103

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory.

Performance 110

Performance Latency Cache Virtualization 110

Scalegrid

JULY 13, 2020

Recognized as the fastest growing database by popularity, PostgreSQL was named the DBMS of the year in both 2018 and 2017 by DB-Engines, and continues to grow in popularity in 2019. pg_repack – reorganizes tables online to reclaim storage. In fact, PostgreSQL is so popular, 11.5%

Open Source 244

Open Source Tuning C++ Database 244

Percona

JULY 7, 2023

In general terms, to achieve HA in PostgreSQL, there must be: Redundancy: To ensure data redundancy and provide continuous performance when a primary server fails, multiple copies of the database reside in replica servers. When the primary server fails, a standby server takes over as the new primary.

Availability 85

Availability Open Source Architecture Database 85

Percona

AUGUST 17, 2023

StackOverflow statistics show that 26% of developers preferred it in 2017, 34% in 2019, and 40% in 2021. PostgreSQL has powerful and advanced features, including asynchronous replication, full-text searches of the database, and native support for JSON-style storage, key-value storage, and XML.

Open Source 80

Open Source Healthcare Social Media Database 80

Smashing Magazine

NOVEMBER 8, 2018

Sharing Data Among Multiple Servers Through AWS S3. Sharing Data Among Multiple Servers Through AWS S3. 2019-04-29T18:34:58+00:00. When providing some functionality for processing a file uploaded by the user, the file must be available to the process throughout the execution. Leonardo Losoviz.

AWS 44

AWS Servers Storage Cloud 44

Percona

JULY 15, 2023

They are a roadmap that speeds up the process of finding specific rows in a large table. The process of crafting indexes involves a trade-off between improved data retrieval speed and impact on data modification operations. Over-indexing on too many columns could lead to unnecessary overhead.

Virtualization 78

Virtualization Speed Database Efficiency 78

The Morning Paper

NOVEMBER 8, 2020

That’s not just theoretical, Facebook actually did this in production while Delos was processing over 1.8 replacing Paxos with Raft), or they could be shims over external storage systems. A minimal Loglet needs to provide totally ordered, durable storage via the shared log API. billion transactions per day. Reconfiguration.

Virtualization 126

Virtualization Latency Storage Systems 126

Smashing Magazine

OCTOBER 22, 2019

2019-10-22T12:30:59+02:00. 2019-10-22T13:06:35+00:00. According to HTTP Archive : The median size of a desktop website in 2019 is 1939.5 The median size of a mobile website in 2019 is 1745.0 You’re going to have to go through this same process whether images come from a stock site or from someone’s DSLR.

Mobile 62

Mobile Media Website Storage 62

SQL Performance

FEBRUARY 3, 2020

RowsAdded int , StartTime datetime2 , EndTime datetime2 ; Next, I need to create a table to provide affinity – we don't ever want more than one process running on any scheduler, even if it means losing some time to retry logic. we want to have multiple processes inserting into separate. ALTER TABLE dbo. BatchQueue ADD.

Speed 113

Speed Processing Servers Storage 113

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory.

Performance 52

Performance Latency Cache Virtualization 52

SQL Performance

SEPTEMBER 6, 2022

I happen to be using SQL Server 2019 CU16 but the details I’ll describe haven’t materially changed since partition level lock escalation was added to SQL Server 2008. The SQL Server lock manager keeps track of the number of locks held by the current transaction. Testing environment. This seems like an oversight.

Database 98

Database Storage Testing Servers 98

Smashing Magazine

OCTOBER 29, 2019

2019-10-29T12:30:59+02:00. 2019-10-29T13:36:09+00:00. Here’s what Google suggests: PageSpeed Insights demonstrates how much storage and bandwidth websites stand to save with WebP. Some of these methods let you dictate how your server delivers images based on the restraints of your visitors’ browsers. Suzanne Scacca.

Website 72

Website Speed Cache Google 72

Dynatrace

JULY 8, 2020

Mentioned above, CPU is a compressible resource ; you can always allocate fewer or shorter CPU time slices to a process. Event objects are not typical log events ; they are produced by the API Server and not included in the logs produced by the cluster. Hence it’s not surprising to see that, according to the?

Infrastructure 196

Infrastructure Monitoring Cloud Metrics 196

The Morning Paper

OCTOBER 4, 2020

The study is based on one of the world’s first commercial 5G network deployments (launched in April 2019), a 0.5 Three different 5G phones are used, including a ZTE Axon10 Pro with powerful communication (SDX 50 5G modem) and compute (Qualcomm Snapdragon TM855) capabilities together with 256GB of storage. km university campus.

Energy 130

Energy Latency Performance Network 130

SQL Performance

NOVEMBER 30, 2021

SQL Server has a cost-based optimizer that uses knowledge about the various tables involved in a query to produce what it decides is the most optimal plan in the time available to it during compilation. Whether the page is dirty or not (a dirty page has changes on it that haven’t yet been written back to durable storage). ) ; GO.

Efficiency 54

Efficiency Servers Database Cache 54

SQL Performance

AUGUST 27, 2021

When you enable one of the two forms of versioning, SQL Server uses a mechanism called versioning to preserve pre-change versions of a record in the version store in tempdb. This timestamp is used to make sure a query processes the correct version of a record. The mechanics of this process aren’t relevant for the purposes of this post.

Database 56

Database Storage Availability Servers 56

HammerDB

JUNE 27, 2022

The Transaction Processing Performance Council (TPC) was founded to bring standards to database benchmarking, and the history of the TPC can be found here. Given the increasing importance of open source and the widespread use of HammerDB, the TPC adopted HammerDB in 2019 and now hosts the project on GitHub. Adoption by the TPC.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

SQL Performance

NOVEMBER 13, 2019

Never mind the likelihood for this to happen in practice in SQL Server; if I run the query again, theoretically, the row with id 2 could be assigned with row number 3 and the row with id 11 could be assigned with row number 2. So apparently the window order clause is mandatory for the ROW_NUMBER function in SQL Server.

Servers 104

Servers C++ Storage Performance 104

Smashing Magazine

JANUARY 15, 2019

2019-01-15T13:30:32+01:00. 2019-04-29T18:34:58+00:00. So, apart from powering servers with renewable energy, what else can web developers do about climate change? This includes the work done by the server, the client and the intermediary communications networks that transmit data between the two. Jack Lenox.

Website Performance 73

Website Performance Website Energy Performance 73

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. The worldwide ASP 18 months ago was ~$300USD , so the average performance in the deployed fleet can be represented by a $300 device from mid-2019.

Performance 124

Performance Network Cache Metrics 124

Enprowess

JANUARY 12, 2022

Convenient Debugging : Debugging process is easy for the developers as single page application SPA offer developers tools. Other benefits: It has other benefits like a Quicker launch to the market, Easier distribution, saving device power and storage, seamless maintenance, and updating. Famous PWA Use Examples. API- First Approach.

Blockchain 59

Blockchain IoT Development Serverless 59

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. Citrix is a sophisticated, efficient, and highly scalable application delivery platform that is itself comprised of anywhere from hundreds to thousands of servers.

Latency 36

Latency Performance Virtualization Infrastructure 36

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? 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

Smashing Magazine

SEPTEMBER 26, 2019

2019-09-26T12:30:59+02:00. 2019-09-26T11:02:12+00:00. I believe you have to truly enjoy digging configurations and solving console errors to enjoy this process. This flexible approach is well-established and widely-adopted by back-end and server architects. Frankenstein Migration: Framework-Agnostic Approach (Part 1).

Architecture 73

Architecture Virtualization Servers Technology 73

Smashing Magazine

JANUARY 11, 2021

Micro-optimizations are great for keeping performance on track, but it’s critical to have clearly defined targets in mind — measurable goals that would influence any decisions made throughout the process. 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 Media Metrics 145

Testsigma

NOVEMBER 16, 2021

As a small business or a startup, we often make decisions that can change the whole structure of our working processes. In the summer of 2019, British Airways faced a technical issue on its website. Notice how March 2020 has shown an extremely positive change in website users with respect to March 2019.

Testing 52

Testing Website Small Business Internet 52

HammerDB

OCTOBER 12, 2018

As is also the case this limitation is at the database level (especially the storage engine) rather than the hardware level. InnoDB is the storage engine that will deliver the best OLTP throughput and should be chosen for this test. . HammerDB difference from Sysbench. Install MySQL or MariaDB from Source. perf special. monitoring.

Best Practices 40

Best Practices Scalability Performance C++ 40

Smashing Magazine

SEPTEMBER 27, 2019

2019-09-27T12:00:59+02:00. 2019-09-27T10:38:23+00:00. Alternatively, you can relax and keep reading because I am going to highlight the most critical code right here, and it’s much more important to understand the mechanics of the process rather than the actual code. Frankenstein Migration: Framework-Agnostic Approach (Part 2).

Storage 66

Storage Testing Processing Code 66

O'Reilly

JULY 25, 2023

For instance, if I’m reading a paper from 2019, a popular song from that year could start playing. In the end, I had to add four additional permissions—”tabs”, “storage”, “scripting”, “identity”—as well as a separate “host_permissions” field to my manifest.json.

Programming 98

Programming Code Design Benchmarking 98