Percona

AUGUST 10, 2018

In fact, you should not set it to OFF in a production system unless you are 100% sure about what you are doing and its implications. This may help tune your table level autovacuum settings appropriately. Tuning Autovacuum in PostgreSQL. How do we identify the tables that need their autovacuum settings tuned ? .

Tuning 44

Tuning Cache Database Storage 44

Brendan Gregg

APRIL 29, 2018

USENIX’s LISA conference is the premier event for topics in production system engineering. The CFP for LISA18 is open now, and we’d love for you to submit talks and tutorials ideas by May 24th, 2018. We hope you'll consider submitting a talk or tutorial, and plan to attend LISA 2018. Join us for 3 days in Nashville at LISA'18.

DevOps 40

DevOps Network Best Practices Programming 40

Scalegrid

MARCH 4, 2019

Get the latest insights on MySQL , MongoDB , PostgreSQL , Redis , and many others to see which database management systems are most favored this year. Based on our findings, SQL still holds 60% with rising demand for systems such as PostgreSQL: SQL Database Use: 60.48%. SQL vs. NoSQL. NoSQL Database Use: 39.52%. Most Popular Databases.

Database 255

Database Metrics Systems Strategy 255

The Netflix TechBlog

NOVEMBER 9, 2021

The specification of AV1 was published in 2018. The Encoding Technologies team took a first stab at this problem by fine-tuning the encoding recipe. Stay tuned! Netflix is proud to be a founding member of AOMedia and a key contributor to the development of AV1. Another exciting direction we are exploring is AV1 with HDR.

Media 246

Media Open Source Efficiency Software Engineering 246

Dynatrace

FEBRUARY 25, 2021

At AWS re:Invent in 2018, the Lambda team presented an excellent talk. What the Lambda team introduced in 2018, for example, the new Firecracker VM, has since been fully rolled out. Lambda functions often serve as a gluing tier or a gateway from on-premises systems to AWS services; they’re almost never standalone.

Lambda 227

Lambda AWS Monitoring Serverless 227

Brendan Gregg

OCTOBER 7, 2018

Created by Alastair Robertson , bpftrace is an open source high-level tracing front-end that lets you analyze systems in custom ways. eBPF (extended Berkeley Packet Filter) is in the Linux kernel and is the new hotness in systems engineering. Here's key differences as of August 2018: Type DTrace bpftrace.

C++ 40

C++ Virtualization Programming Latency 40

The Netflix TechBlog

MARCH 1, 2021

Background The Media Cloud Engineering and Encoding Technologies teams at Netflix jointly operate a system to process incoming media files from our partners and studios to make them playable on all devices. The first generation of this system went live with the streaming launch in 2007. Delivery?—?A

Serverless 228

Serverless Media Latency Social Media 228

The Netflix TechBlog

NOVEMBER 9, 2020

some teams used a pattern of building a materialized view of another service’s data for their specific system needs. Inconsistent data across different Studio applications was the top support issue in Studio Engineering in 2018. Materialized views had performance benefits, but data consistency lagged by varying degrees.

Architecture 359

Architecture Engineering Scalability Open Source 359

Smashing Magazine

DECEMBER 2, 2021

Stay tuned for lots of articles on metaprogramming, applications, useful Raku modules, programming techniques, guides on how to work with Raku inside containers, and even how to migrate from good ol’ Perl. Tune in each day for an article that explores the wide range of topics in system administration. SysAdvent on Twitter.

Design 108

Design Development Programming Website 108

Tasktop

MAY 24, 2021

Citing the Navy’s “leadership factory”, he encouraged attendees to focus on tuning a system for building leaders, to give them the responsibility and ownership to hone their skills and come back “stronger” from missions. OKRs (objectives and key results) are a popular management system for setting and reaching aspirational goals.

DevOps 91

DevOps Metrics Healthcare Innovation 91

HammerDB

OCTOBER 12, 2018

As with the previous guides as an Intel employee (#IAMINTEL) the examples are taken from a MySQL 8 on Linux on Intel system and the approach is the same for whatever system you are testing although some of the settings you see may be different. Similarly for this guide MySQL can be swapped for a mySQL based databases such as MariaDB.

Best Practices 40

Best Practices Scalability Performance C++ 40

O'Reilly

NOVEMBER 28, 2023

Even with cloud-based foundation models like GPT-4, which eliminate the need to develop your own model or provide your own infrastructure, fine-tuning a model for any particular use case is still a major undertaking. Users also need to know how to create a prompt for an AI system that will generate a useful answer.

Open Source 106

Open Source Artificial Intelligence Google Infrastructure 106

Percona

JULY 2, 2023

This blog was originally written in September 2018 and was updated in June 2023. In setting up our demonstration system, we use pg_basebackup and continuous archiving. In this post, we cover the methods used to achieve an enterprise-grade backup strategy for the PostgreSQL cluster.

Strategy 52

Strategy Database Storage Open Source 52

HammerDB

MAY 5, 2019

However as noted many factors affect spin-locks including how much time you actually spend in locks in the first place and therefore the best way to really determine how much time you have to spend in fine-tuning spin-locks in the real world can be done through testing. Copyright (C) 2003-2018 Steve Shaw. In the recent MySQL 8.0.16

Testing 48

Testing Tuning Latency Storage 48

The Netflix TechBlog

DECEMBER 17, 2019

In order to be supported, a database is required to fulfill a set of features that are commonly available in systems like MySQL, PostgreSQL, MariaDB, and others. We want to support these systems as a source so that they can provide their data for further consumption. Some of DBLog’s features are: Processes captured log events in-order.

Database 197

Database Traffic Transportation Open Source 197

Percona

APRIL 12, 2023

Instead of relational (SQL) databases defined primarily through a hierarchy of related sets via tables and columns, their non-relational structure used a system of collections and documents. 2018: MongoDB announces that it is moving from GNU AGPLv3 licensing to the Service Side Public License (SSPL).

Open Source 81

Open Source Programming Database Servers 81

The Netflix TechBlog

DECEMBER 17, 2019

In order to be supported, a database is required to fulfill a set of features that are commonly available in systems like MySQL, PostgreSQL, MariaDB, and others. We want to support these systems as a source so that they can provide their data for further consumption. Some of DBLog’s features are: Processes captured log events in-order.

Database 212

Database Traffic Transportation Open Source 212

Percona

SEPTEMBER 13, 2018

2018-09-03.09 > mysql-slowquery.log.2018-09-03.09 2018-09-03.09 2018-09-03.09 system time, 43.80M rss, 141.48M vsz # Current date: Tue Sep 4 15:54:21 2018 # Hostname: aahmed-GL503VD # Files: mysql-slowquery.log.2018-09-03.09 2018-09-03.09 Run pt-query-digest on the log file. . $ user time, 2.5s

C++ 42

C++ AWS Open Source Testing 42

Smashing Magazine

JUNE 3, 2022

These compiled systems for letters and symbols, which are representations of sounds and information, get a lot of use and are a large part of graphic communication. Fast forward to the early 1960s, phototypesetting systems appeared. Instead, we need to address multiple factors within the design system. Stay tuned!

Performance 111

Performance Design Best Practices Testing 111

HammerDB

NOVEMBER 5, 2018

SQL> alter system flush buffer_cache; System altered. However what if in a test environment you cannot upgrade the log I/O but want to move beyond the log bottleneck to be able to test other system components more fully. SQL> alter system set commit_wait='NOWAIT' scope=spfile; System altered. commit_wait.

Benchmarking 40

Benchmarking Database C++ Virtualization 40

Percona

JANUARY 14, 2019

2018-05-31 ? In a partitioned massively parallel database system, the storage format and sorting algorithm may not be optimized for that operation as we are reading multiple partitions in parallel. toDate(min(created_utc))???toDate(max(created_utc))??????count()?? toDate(max(created_utc))??????count()?? count()?? ? 2006-01-01 ?

Database 40

Database Analytics Blockchain Healthcare 40

Brendan Gregg

FEBRUARY 9, 2018

In this post I'll look at the Linux kernel page table isolation (KPTI) patches that workaround Meltdown: what overheads to expect, and ways to tune them. Also microbenchmarks, which often stress-test the system, will suffer the largest losses. This shows the system-wide syscall rate. Much of my testing was on Linux 4.14.11

Performance 75

Performance Benchmarking Cache Tuning 75

KeyCDN

SEPTEMBER 20, 2018

Let’s take a look at some of the best error monitoring tools and strategies for 2018. Not all back-end errors affect the user experience, but keeping track of them can prove helpful when tuning your app. That being said, here are some of the best tools for tracking web application errors in 2018 Automated Testing 1.

Strategy 67

Strategy Monitoring Website Google 67

Percona

JULY 30, 2018

Please join Percona’s CEO, Peter Zaitsev as he presents Using MySQL for Distributed Database Architectures on Tuesday, July 31st, 2018 at 7:00 AM PDT (UTC-7) / 10:00 AM EDT (UTC-4). In this presentation, we will look at how we can use MySQL to engineer distributed multi-node systems. Register Now. Register for the webinar.

Architecture 41

Architecture Database Open Source Internet 41

Apica

MAY 10, 2019

million Netflix users as of Q3 2018. Apica provides load tests with 10 million+ simulated VUs for Hollywood at 800 GB/sec to measure the behavior of their systems, analyze any bottlenecks from the spike of simulated traffic, and assess any risks to the stability and availability of their streaming services before actual primetime.

Testing 40

Testing Performance Social Media Wireless 40

Rigor

SEPTEMBER 3, 2019

In one high-profile example, Amazon dealt with significant outages on Prime Day 2018 , which may have cost them as much as $99 million in sales. JCrew’s site went down on Black Friday 2018 for five hours , costing the company more than $700,000 in sales and impacting approximately 323,000 shoppers. Case studies abound.

Website 74

Website Cache Ecommerce Traffic 74

The Netflix TechBlog

JULY 1, 2019

Surface Cache Surface cache is a reserved pool in main memory (or separate graphics memory on a minority of systems) that the Netflix app uses for storing textures (decoded images and cached resources). when we rolled them out globally at the end of 2018. both the full and fallback experiences?—?when

Cache 166

Cache Design Testing Development 166

Brendan Gregg

FEBRUARY 8, 2018

In this post I'll look at the Linux kernel page table isolation (KPTI) patches that workaround Meltdown: what overheads to expect, and ways to tune them. Also microbenchmarks, which often stress-test the system, will suffer the largest losses. This shows the system-wide syscall rate. Much of my testing was on Linux 4.14.11

Performance 40

Performance Benchmarking Cache Tuning 40

Rigor

SEPTEMBER 11, 2019

Rachel is also one of the people behind Perch , a PHP content management system (CMS). She works directly with organizations to build clear and coherent products and design systems. He has a keen interest in web technologies, performance tuning, security, and the practical use of technology. Doug Sillars. Doug Sillars.

Performance 89

Performance Education Google Website 89

Smashing Magazine

SEPTEMBER 6, 2021

As discussed in part 2 , in HTTP/2, this multiplexing is steered using its prioritization system. As we also saw, however, this system was very complex , causing it to often be badly used and implemented in practice (see the image below). Nevertheless, the fundamental concepts of prioritization won’t change. What Does It All Mean?

Network 105

Network Servers Cache Traffic 105

Adrian Cockcroft

AUGUST 23, 2018

Allez will be with me and Laurel in the Monterey area at the end of August 2018. I first became aware of Citroen’s as a child when my father pointed out a Citroen DS and told me about it’s advanced aerodynamics and technology, including the hydropneumatic suspension system. I don’t have an asking price, and I’m not in a hurry.

Speed 40

Speed Engineering Automotive Systems 40

John McCalpin

JANUARY 22, 2018

Dr. Damon McDougall gave a short presentation on this study at the IXPUG 2018 Fall Conference ( pdf ) — I originally wrote these notes to help organize my thoughts as we were preparing the IXPUG presentation, and later decided that the extra details contained here are interesting enough for me to post it. not FMAs). FMAs/cycle. .

Latency 40

Latency Hardware Code Testing 40

Smashing Magazine

MARCH 2, 2020

The Face demonstrates how a system for design is the structure on which you start building a design. In 2018, Brody stepped down from his position as Dean of the School of Communication at the Royal College of Art. By fine-tuning my alpha channel values and colour stop points, I can create the perfect look to fit my design.

Design 102

Design Media Testing Entertainment 102