Brendan Gregg

JULY 4, 2021

AWS Graviton2); for memory with the arrival of DDR5 and High Bandwidth Memory (HBM) on-processor; for storage including new uses for 3D Xpoint as a 3D NAND accelerator; for networking with the rise of QUIC and eXpress Data Path (XDP); and so on.

Performance 52

Performance Latency Hardware Storage 52

Brendan Gregg

FEBRUARY 28, 2023

Titus, the Netflix container management platform, is now open source,” [link] , Apr 2018 [Cutress 19] Dr. [link] , 2021 [Trader 21] Tiffany Trader, “Cerebras Second-Gen 7nm Wafer Scale Engine Doubles AI Performance Over First-Gen Chip ,” [link] , Apr 2021 [Ghigoff 21] Yoann Ghigoff, et al.,

Performance 52

Performance Latency Cache Virtualization 52

Brendan Gregg

DECEMBER 31, 2017

My last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an updated version of my [2014] talk. Storage I/O. Not a lot has changed with these tunables since my [2014] talk. I shouldn't let this go to my head, as there were 42,000 attendees at re:Invent looking for something to see!)

Tuning 61

Tuning AWS Best Practices Network 61

Brendan Gregg

DECEMBER 30, 2017

My last talk for 2017 was at AWS re:Invent, on "How Netflix Tunes EC2 Instances for Performance," an updated version of my [2014] talk. Storage I/O. Not a lot has changed with these tunables since my [2014] talk. I shouldn't let this go to my head, as there were 42,000 attendees at re:Invent looking for something to see!)

Tuning 52

Tuning AWS Best Practices Network 52

High Scalability

JUNE 22, 2018

using them to respond to storage events on s3 or database events or auth events is super easy and powerful. Ultimately, Netflix did end up paying Comcast in 2014 and, surprise surprise, the throttling stopped. Three major roadmap updates in 29 days with serious spec changes, and it got worse from there.

Internet 113

Internet Internet Scalability Artificial Intelligence 113

Percona

JUNE 4, 2023

MariaDB retains compatibility with MySQL, offers support for different programming languages, including Python, PHP, Java, and Perl, and works with all major open source storage engines such as MyRocks, Aria, and InnoDB. GA 31 March 2014 10.0.10 MariaDB Server includes many storage engines beyond the default InnoDB.

Open Source 52

Open Source Servers Storage Scalability 52

SQL Performance

MAY 16, 2019

For SQL Server 2014 and later, the uniquifier is correctly omitted for unique indexes, but the one extra byte for the internal bit flag is retained. The calculation details (for SQL Server 2014 onward) are as follows: Total fixed-length column size = 54 bytes : Type id 104 bit = 1 byte (internal). 61 bytes * 269 rows = 16,409 bytes.

Cache 67

Cache Servers Testing Storage 67

SQL Server According to Bob

JUNE 3, 2016

Use SQL Server Management Studio (SSMS) or your favorite query editor to connect to a SQL Server 2012 or 2014 instance. 32GB RAM, 4 Core Hyper-threaded enabled 2.8Ghz, SSD Storage. SQL Server 2014. The DBCC CheckDB demonstration loads a table and demonstrates the performance improvement. or newer release. SQL Server. begin tran.

Hardware 40

Hardware Cache Servers Software Engineering 40

SQL Performance

MARCH 17, 2020

Back in 2014, I wrote an article called Performance Tuning the Whole Query Plan. Not everyone will be able to move to column store storage quickly, and it won't always be the right solution anyway. This follow-up post revisits the question for SQL Server 2019, using a larger number of rows. Test Environment.

Servers 86

Servers Tuning Database Efficiency 86

Scalegrid

JULY 17, 2020

2014) added support for JSONB data type. JSONB storage has some drawbacks vs. traditional columns: PostreSQL does not store column statistics for JSONB columns. JSONB storage results in a larger storage footprint. JSONB storage does not deduplicate the key names in the JSON. JSON database in 9.2

Storage 321

Storage Database Efficiency Processing 321

Dynatrace

AUGUST 11, 2022

The FaaS model of cloud computing debuted in 2014 with startups like hook.io. Infrastructure as a service (IaaS) handles compute, storage, and network resources. Microservices, on the other hand, make it possible to quickly scale up a single aspect of an application, such as storage or compute use. But how does FaaS fit in?

Development 258

Development Serverless Best Practices Lambda 258

Brendan Gregg

NOVEMBER 29, 2017

In this configuration, the AMI and boot is paravirt (PV), the kernel is making hypercalls instead of privileged instructions, and the system is using paravirt network and storage drivers. It's all a bit confusing, and I wrote about this in 2014: [Xen Modes]. This was extended to instance storage devices for the x1.32xlarge in 2016.

Virtualization 111

Virtualization AWS Hardware Storage 111

CSS Wizardry

MARCH 3, 2019

Tip: There are a number of directives that Clear-Site-Data will accept: "cookies" , "storage" , "executionContexts" , and "*" (which, naturally, means ‘all of the above’). a CDN), to always serve the freshest possible copy, and not to persist anything to storage. Steve Souders , 2014. Caching – 2014. Examples and Recipes.

Cache 264

Cache Latency Strategy Servers 264

Brendan Gregg

NOVEMBER 28, 2017

In this configuration, the AMI and boot is paravirt (PV), the kernel is making hypercalls instead of privileged instructions, and the system is using paravirt network and storage drivers. It's all a bit confusing, and I wrote about this in 2014: [Xen Modes]. This was extended to instance storage devices for the x1.32xlarge in 2016.

Virtualization 40

Virtualization AWS Hardware Storage 40

SQL Performance

MAY 1, 2019

For SQL Server 2014 and later , the transition point is 950 rows for this table. The way the calculation is performed is slightly different in SQL Server 2012 and earlier compared with SQL Server 2014 and later. In SQL Server 2014 and later , the changes are: The row size is calculated by the metadata generator.

Servers 47

Servers Database Testing Performance 47

SQL Performance

APRIL 8, 2019

Back on December 5, 2017, Microsoft announced that they were using AMD EPYC 7551 processors in their storage-optimized Lv2-Series virtual machines. The older Intel Xeon E5-26xx v3 (Haswell) series which was introduced in Q3 of 2014, had a maximum memory bandwidth of 2133MHz. Figure 2: Microsoft Project Olympus. Memory (GiB).

Azure 42

Azure Virtualization Storage Benchmarking 42

All Things Distributed

DECEMBER 12, 2018

They started using AWS in 2014 after a decision to move away from outsourcing without having to build on-premises infrastructure, in an initiative to restart innovation in-house after a hiatus spanning several years. Telenor Connexion. Telenor Connexion is a part of one of the world's largest mobile telecommunications companies, Telenor.

AWS 124

AWS Cloud Games Serverless 124

Abhishek Tiwari

NOVEMBER 3, 2018

They often get blindsided by vendor’s pitch and end-up making decision based on some fancy demos (see my post from 2014 on Adobe AEM ). Alternatively, you can upload output directory to cloud object/blob storage such as Amazon S3 or Azure Blob Storage and serve your site from there.

Systems 63

Systems Cache Website Network 63

Sutter's Mill

MARCH 11, 2024

That’s pretty easy to statically guarantee, except for some cases of the unused parts of lazily constructed array/vector storage. If we can get a 98% improvement and still have fully compatible interop with existing C++, that would be a holy grail worth serious investment. Initialization safety Enforce initialization-before-use by default.

C++ 139

C++ Programming Code Java 139

SQL Server According to Bob

SEPTEMBER 26, 2016

When we released Always On Availability Groups in SQL Server 2012 as a new and powerful way to achieve high availability, hardware environments included NUMA machines with low-end multi-core processors and SATA and SAN drives for storage (some SSDs). As we moved towards SQL Server 2014, the pace of hardware accelerated.

Availability 40

Availability Servers Hardware Benchmarking 40

Alex Russell

APRIL 29, 2021

Chrome has missed several APIs for 3+ years: Storage Access API. Delayed three years ( Chrome 40, November 2014 vs. Safari 11.1, A subset ( element.animate() ) has enabled developers to more easily create high-performance visual effects with lower risk of visual stuttering in Chrome and Firefox since 2014. Service Workers.

Media 145

Media Games Education Engineering 145

O'Reilly

JULY 25, 2023

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. This choice also inspired me to call my project Swift Papers.

Programming 98

Programming Code Design Benchmarking 98

SQL Performance

MAY 29, 2019

It can be activated from SQL Server 2008 to 2014 inclusive using documented trace flag 610. There is a final condition evaluated by storage engine code ( IndexDataSetSession::WakeUpInternal ) at execution time: DMLRequestSort is currently true ; and. The internal facility that enables these cases is called FastLoadContext.

Cache 64

Cache Testing Servers Code 64

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. mid-priced Androids were slightly faster than 2014's iPhone 6. The Moto G4 , for example. The cheapest (high volume) Androids perform like 2012/2013 iPhones, respectively.

Performance 124

Performance Network Cache Metrics 124

SQL Performance

APRIL 23, 2019

SQL Server 2014 added the ability to perform parallel batch-mode grouped aggregation within a single Hash Match Aggregate operator. Columnstore storage. To understand this, it is necessary to first review how columnstore storage works at a high level: A compressed row group contains a column segment for each column.

Servers 67

Servers Testing Metrics Storage 67

Brendan Gregg

SEPTEMBER 5, 2017

I spoke about the performance differences in my 2014 SCALE keynote "What Linux can learn from Solaris performance and vice-versa" ([slides]) where the conclusion was that Linux may run faster out of the box, but I could typically make Solaris run much faster thanks to optimizations found using DTrace.

Virtualization 76

Virtualization AWS Engineering Hardware 76

SQL Performance

AUGUST 23, 2019

Complex bitmaps have supported multiple join columns and all batch mode data types since SQL Server 2014. The SQL Server batch mode implementation of a Bloom filter is optimized for modern CPU cache architectures and is known internally as a complex bitmap. Bitmap Choice.

Servers 75

Servers Engineering Efficiency Retail 75

SQL Server According to Bob

DECEMBER 31, 2018

Using SQL Server Management Studio (SSMS) and storing the events in a table requires reading the events, streaming to table storage followed by an order by event sequence query. Large traces can encounter the 32-bit SSMS memory limitations. public void Dispose() { Dispose(true); GC.SuppressFinalize(this); }.

Efficiency 40

Efficiency Code Servers Cache 40

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. codecs','imgur','floppy','codec','adobe','android'] ? ? scala','currency','println'] ? ? voting','maven'] ? ? systemd','gitlab','autotldr'] ? ?

Database 40

Database Analytics Blockchain Healthcare 40