Brendan Gregg

DECEMBER 21, 2019

Embedded C. # # Tone generation from: [link] # # 29-Apr-2019 Brendan Gregg Created this. This is the culmination of five years of work: the BPF kernel runtime, C support, LLVM and Clang support, the BCC front-end, and finally the bpftrace language. This is not my best code, since I hacked it in a hurry, but here it is: #!/usr/bin/python

C++ 52

C++ Education Java AWS 52

Percona

AUGUST 18, 2023

root@ip-172-31-128-38 share]# cat /usr/lib/systemd/system/mysqld@.service TimeoutSec=0 # Execute pre and post scripts as root PermissionsStartOnly=true # Needed to create system tables #ExecStartPre=/usr/bin/mysqld_pre_systemd %I # Start main service ExecStart=/usr/bin/mysqld --defaults-file=/etc/prod3306.cnf Version: '8.0.19-10'

Programming 82

Programming Servers Database Hardware 82

Adrian Cockcroft

JANUARY 29, 2023

There is no way to model how much more traffic you can send to that system before it exceeds it’s SLA. This is unfortunate, because we’d really like to be able to build systems that have an SLA that we can share with the consumers of our interfaces, and be able to measure how well we are doing.

Lambda 98

Lambda Latency Cache C++ 98

SQL Performance

MARCH 20, 2020

In SQL Server 2016, STRING_SPLIT solved a long-missing gap in a language that, admittedly, was not intended for complicated string processing. For years before SQL Server 2016 (and for years since), we've written our own versions, improved them over time, and even argued about whose was fastest.

Database 109

Database Servers C++ AWS 109

Tech News Gather

NOVEMBER 22, 2022

Programmers are shifting to the more result-oriented and user-friendly Kotlin programming language due to its high compatibility with Java and Objective C and its excellent tooling support. Kotlin development supports JavaScript, Android, Linux, Mac, Windows, and many other embedded systems. in 2016 after five years of existence.

Development 52

Development Java Programming Google 52

Percona

JUNE 4, 2023

Before we dive into the differences between MariaDB and MySQL, we will provide a thorough examination of each relational database management system (RDBMS). While originally designed to be a drop-in replacement for MySQL, it evolved into its own distinct database management system and is now maintained and supported by the MariaDB Foundation.

Open Source 52

Open Source Servers Storage Scalability 52

SQL Performance

OCTOBER 29, 2019

CustomerID , c. Customers c JOIN Sales. CustomerTransactions ct ON c. GROUP BY c. CustomerID , c. ORDER BY ExecutionCount DESC ; Note: The sys.dm_exec_function_stats DMV was added in SQL Server 2016. In some scenarios, parameterizing five to 10 ad hoc queries can improve system performance as a whole.

C++ 74

C++ Database Servers Tuning 74

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. It's shaping up to be a DTrace version 2.0: Attaching 2 probes. ^C variable curthread curtask.

C++ 40

C++ Virtualization Programming Latency 40

Alex Podelko

OCTOBER 28, 2016

I am looking forward to share my thoughts on ‘Reinventing Performance Testing’ at the imPACt performance and capacity conference by CMG held on November 7-10, 2016 in La Jolla, CA. Such tool can only be used if it supports the specific protocol used for communication between two tiers of the system. – Cloud. – Agile.

Performance Testing 100

Performance Testing Technology Technology Testing 100

Randon ASCII

JANUARY 22, 2017

In August of 2016 Chrome switched meta-build systems, from gyp to gn. Both gyp and gn are systems for creating ninja files and these are the files that define how Chrome is built. It’s also peculiar because log2f is a C Run-Time (CRT) function, which shouldn’t be supplied by Blink anyway.

C++ 56

C++ Code Systems Processing 56

SQL Performance

SEPTEMBER 2, 2021

SQL Server 2016 brought us STRING_SPLIT , a native function that eliminates the need for many of the custom solutions we’ve needed before. STRING_SPLIT() in SQL Server 2016 : Follow-Up #1. STRING_SPLIT() in SQL Server 2016 : Follow-Up #2. all_columns AS c WHERE EXISTS. ( WHERE Item = c. ) ORDER BY c. [

C++ 59

C++ Servers Testing Database 59

Brendan Gregg

SEPTEMBER 5, 2017

What follows are topics that may be of interest to anyone looking to migrate their systems and skillset: scan these to find topics that interest you. ## ZFS ZFS is available for Linux via the [zfsonlinux] and [OpenZFS] projects, and more recently was included in Canonical's Ubuntu Linux distribution: Ubuntu Xenial 16.04 LTS (April 2016).

Virtualization 76

Virtualization AWS Engineering Hardware 76

SQL Server According to Bob

JANUARY 5, 2017

By March of 2016 Slava had convinced me to join the team. Without going into details, you boot your laptop or server and don’t give a thought about the binary format(s) of the operation system. The computer works the same way if made by IBM, HP, Dell or other vendor no matter what the operating system.

Servers 40

Servers Operating System C++ Software Engineering 40

Alex Russell

MAY 9, 2022

Only teams that master their systems can make intentional trade-offs. Panglossian nonsense. --> Organisations that serve their tools tread water no matter how advanced their technology, while groups that intentionally manage systems can succeed on any stack. [1]. This blindspot usually extends up to the C-suite.

Performance 86

Performance Latency Metrics Engineering 86

Alex Russell

SEPTEMBER 12, 2016

Instead, this article focuses on the strictest common criteria to ensure broad installability as of late 2016. In US educational terms, doing well in these criteria will be the difference between a C- and an A-: Mobile-friendly design. You can even integrate Lighthouse into continuous integration systems to catch regressions.

Mobile 52

Mobile Network Education Design 52

Percona

JANUARY 14, 2019

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. ClickHouse is a great massively parallel analytical system. voting','maven'] ? ? compose','xamarin','markdown','scrum','comic'] ? ? Conclusion.

Database 40

Database Analytics Blockchain Healthcare 40

Smashing Magazine

FEBRUARY 8, 2022

In 2016, I released the first version of the tool, then called not Statoscope, but Webpack Runtime Analyzer. It might not be completely efficient if we use modules in raw form, as they are in the file system: there might be some doubles, some modules could be combined, and others are only partially used. Sergey Melukov.

Storage 79

Storage Code Metrics C++ 79

SQL Performance

SEPTEMBER 25, 2019

This value is hard-coded into SQL Server and has not been changed following the increase to 1700 bytes for nonclustered index keys from SQL Server 2016 onward. c1 UNION SELECT NULL ) AS U ) AS CA ( c ) ; Notice the Stream Aggregate below the Lazy Index Spool. Optimizer Rules. FROM #T1 AS T1 CROSS APPLY. (

Performance 104

Performance Cache Servers Education 104

Nick Desaulniers

NOVEMBER 20, 2016

clang -c x.c If you run otool -L on libSystem itself, you’ll see it depends on a bunch of other libraries including a C runtime, malloc implementation, pthreads implementation, and more. bin # system installed binaries like nm, gcc. ??? include # system installed headers like stdio.h. ??? 6 GNU C Library ( Ubuntu GLIBC 2.24-3ubuntu1

C++ 48

C++ Programming Code Virtualization 48

SQL Server According to Bob

AUGUST 23, 2016

Update System Table Info. The creation of the XTP, common access DLL requires SQL Server to generate C code, invoke the C compiler and save the DLL into the XTP directory. Let’s take a high level look at the create table activities. Disk Based. In-Memory Optimized. Parse T-SQL. Build Create Plan. Execute Plan.

C++ 40

C++ Software Engineering Servers Code 40

Particular Software

OCTOBER 3, 2017

This article was originally published on the NDC 2016 Blog. What if you still have to support the existing system? As you're rewriting the system, how are you going to deal with these new feature requests for customers? A New Hope As part of supporting existing customers, it's likely you add new features to your system.

Architecture 49

Architecture Database Code Systems 49

Scalegrid

AUGUST 15, 2019

In 2014, we discussed 4 of the top MongoDB GUIs: MongoVue, MongoHub, RockMongo, and Robo 3T (formerly Robomongo), and again in 2016: MongoDB Compass, Robo 3T, Studio 3T, and MongoBooster. Query Code for converting queries to five target language: Java, Python, C#, PHP, and JavaScript (Node.js). The Best Mongo GUI’s of 2016.

Database 40

Database Servers Monitoring Availability 40

Randon ASCII

FEBRUARY 25, 2018

In September of 2016 we started noticing random failures when building Chrome – 3 out of 200 builds of Chrome failed when protoc.exe, one of the executables that is part of the build, crashed with an access violation. The next step was a custom C++ program that opened the just-linked exe and called FlushFileBuffers on it.

Programming 79

Programming Hardware Cache Code 79

SQL Server According to Bob

DECEMBER 18, 2018

Durability: “In database systems , durability is the ACID property which guarantees transactions that have committed will survive permanently. For example, if a flight booking reports that a seat has successfully been booked, then the seat will remain booked even if the system crashes.” – [link]. The Back Story.

Servers 90

Servers Media Cache Storage 90

SQL Server According to Bob

FEBRUARY 10, 2019

Several event types are included in the health session, some of which include predicates to remove noise from the system health session. The events logged in the system health show a non-yield beginning, then a login timeout occurring and the non-yield ending. – -c the control file. – sqlclr. clr_allocation_failure.

Servers 40

Servers Network Database Systems 40

Smashing Magazine

OCTOBER 26, 2018

When it comes down to how WordPress is programmed, one thing is certain: it doesn’t follow the M odel- V iew- C ontroller (MVC) design pattern that many developers are familiar with. WordPress core developers used a system of hooks which allowed other developers to modify or extend certain functionalities. on December 6th, 2016.

Cache 78

Cache Website Speed Database 78

SQL Server According to Bob

JANUARY 28, 2018

Resource Manager – Database, File System, with ACID capabilities. The APP begins an XA or MSDTC transaction and enlists all the other end-points it requires in the transaction (File System, Oracle, PostreSQL, DB2, …) These end-points all become part of the distributed transaction and are controlled under the 2-phase protocol.

Servers 40

Servers Azure Engineering Java 40

Smashing Magazine

JANUARY 21, 2019

Note : Brad Frost’s “ Atomic Design ” is a great methodology for identifying these common patterns and building a reusable design system. Brad Frost identifies five distinct levels in atomic design for creating design systems. Large preview ). Hence, building a site through components is akin to playing with LEGO.

Social Media 64

Social Media Database Media Website 64

Smashing Magazine

JULY 6, 2021

This data would be collated and authored in a Web Content Management System (WCMS) by a content editor. With Luminary’s 21 years of experience in the digital space, my experience of 17 years in the CMS space as well as our focus on Headless since 2016, here are my two cents on what you should look out for. Microservices architecture.

Cache 143

Cache Website Mobile Google 143