SQL Performance

JULY 16, 2019

A close monitoring of the hardware enthusiast community, including many of the most respected hardware analysts and reviewers paints an even more dire picture about Intel in the server processor space. Despite all of this, Intel is not going to lose their entire server processor business any time soon. So, what has changed my mind?

Servers 46

Servers Hardware Architecture Retail 46

Brendan Gregg

FEBRUARY 28, 2023

This talk originated from my updates to [Systems Performance 2nd Edition], and this was the first time I've given this talk in person! CXL in a way allows a custom memory controller to be added to a system, to increase memory capacity, bandwidth, and overall performance. Ford, et al., “TCP

Performance 110

Performance Latency Cache Virtualization 110

SQL Performance

MARCH 15, 2021

In my last post , I illustrated one reason you should stop using deprecated system tables like sysprocesses. Since SQL Server 2012 (and, to a much lesser extent, since SQL Server 2008), the most complete and flexible solution for monitoring events on a SQL Server instance has been Extended Events.

Servers 64

Servers Azure Best Practices Monitoring 64

SQL Performance

MAY 1, 2020

In a recent tip , I described a scenario where a SQL Server 2016 instance seemed to be struggling with checkpoint times. I was a bit perplexed by this issue, since the system was certainly no slouch — plenty of cores, 3TB of memory, and XtremIO storage. How It Works: When is the FlushCache message added to SQL Server Error Log?

C++ 58

C++ Database Servers Storage 58

SQL Server According to Bob

JANUARY 26, 2017

My goal is to resolve mysteries about SQL Server I encounter but do this without going straight the source code first. The first case that helped me start this journey was asked by a MVP within the SQL Server community (his first name starts with Joey<g>). The question went something like this….

Servers 40

Servers Database Azure Cache 40

SQL Performance

JANUARY 22, 2020

Table-valued parameters have been around since SQL Server 2008 and provide a useful mechanism for sending multiple rows of data to SQL Server, brought together as a single parameterized call. The DataTable can be created multiple ways in the.NET code, but a common way to create the table is something like the following: System.

Servers 55

Servers Azure Hardware Network 55

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. There is a clustered primary key index on the Id column of the dbo.Votes table.

Servers 86

Servers Tuning Database Efficiency 86

Brendan Gregg

FEBRUARY 28, 2023

This talk originated from my updates to Systems Performance 2nd Edition , and this was the first time I've given this talk in person! CXL in a way allows a custom memory controller to be added to a system, to increase memory capacity, bandwidth, and overall performance. Ford, et al., “TCP

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

All Things Distributed

APRIL 5, 2012

Werner Vogels weblog on building scalable and robust distributed systems. Troy: We moved our service from internal servers to AWS. Jack: Since our launch in late 2008, weve grown to over 6 million teachers and students globally primarily through word of mouth of teachers who have shared Edmodo with each other. Comments ().

Innovation 141

Innovation AWS Education Network 141

Testsigma

FEBRUARY 9, 2022

Wikipedia states that in a 2008 report, open-source projects were able to save over USD 60 billion for the customers. Although remember that not every project on GitHub is open-source as it serves as a version control system repository. This whole process will initiate communication between you and people from all around the world.

Open Source 52

Open Source Code Software Software 52

Percona

JANUARY 14, 2019

Processed 4.15 Processed 4.15 Processed 8.19 Processed 8.19 Processed 4.15 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. Processed 3.05 Processed 8.19

Database 40

Database Analytics Blockchain Healthcare 40

SQL Performance

APRIL 26, 2019

The DTU calculator is a free tool you can use to upload performance metrics from your server, and use the data to determine the appropriate service tier if you were to migrate that server to an Azure SQL Database (or to a SQL Database elastic pool ). NOTE : This process is not officially supported by SentryOne.

Azure 40

Azure Database Metrics Servers 40

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 11, 2020

Using SQL Server’s SNITrace to Troubleshoot Networking Issues In the process of tracking down a few TCP 10054 issues (highlighted here: ​​ [link] ) I ​​ also ​​ used ​​ the ​​ SNITrace ​​ (SNI Trace) ​​ capabilities.

Network 40

Network Servers Processing Software Engineering 40

Randon ASCII

FEBRUARY 25, 2018

The underlying bug is that if a program writes a PE file (EXE or DLL) using memory mapped file I/O and if that program is then immediately executed (or loaded with LoadLibrary or LoadLibraryEx), and if the system is under very heavy disk I/O load, then a necessary file-buffer flush may fail. 9658 errors : @$ip (00408000-00415815).

Programming 79

Programming Hardware Cache Code 79

Smashing Magazine

AUGUST 20, 2021

Yet, for all these technological developments, it’s interesting that many of us are still serving sites in the same way Tim did with the very first website — a web server serving static website files. These desktop applications incremented the tooling an inch closer to the modern Jamstack content management systems of today.

Ecommerce 140

Ecommerce Website Government Internet 140

The Netflix TechBlog

AUGUST 29, 2023

A brief history of IPC at Netflix Netflix was early to the cloud, particularly for large-scale companies: we began the migration in 2008, and by 2010, Netflix streaming was fully run on AWS. For Inter-Process Communication (IPC) between services, we needed the rich feature set that a mid-tier load balancer typically provides.

Traffic 226

Traffic Latency Cloud C++ 226

O'Reilly

JULY 25, 2023

And if I switch tabs to view a paper from 2008, then a song from 2008 could start up. To provide some coherence to the music, I decided to use Taylor Swift songs since her discography covers the time span of most papers that I typically read: Her main albums were released in 2006, 2008, 2010, 2012, 2014, 2017, 2019, 2020, and 2022.

Programming 98

Programming Code Design Benchmarking 98