Dynatrace

OCTOBER 28, 2021

Chaos engineering matured at organizations such as Netflix, and gave rise to technologies such as Gremlin (2016) , becoming more targeted and knowledge-based. The science has spawned specialized chaos engineers who dedicate themselves to disrupting cloud software and the on-prem systems they interact with to make them resilient.

Engineering 228

Engineering Entertainment Cloud Infrastructure 228

Brendan Gregg

JULY 4, 2021

This was a chance to talk about other things I've been working on, such as the present and future of hardware performance. I also wrote about these topics in detail for my recent [Systems Performance 2nd Edition] book. Note that my predictions in this talk may be wrong, but they should be thought-provoking. Ford, et al., “TCP

Performance 52

Performance Latency Hardware Storage 52

Percona

AUGUST 18, 2023

The original motivation for FB was due to different hardware generations, especially between regions/data centers. root@ip-172-31-128-38 share]# cat /usr/lib/systemd/system/mysqld@.service err 2023-07-10T05:26:42.521994Z 0 [System] [MY-010910] [Server] /usr/bin/mysqld: Shutdown complete (mysqld 8.0.19-10) Version: '8.0.19-10'

Programming 82

Programming Servers Database Hardware 82

Dynatrace

JUNE 7, 2019

For detailed prerequisites, hardware requirements, and installation guidelines, see our help page for browser monitors in private locations. Q: Is there a plan to support more operating systems? LTS, Red Hat server 7 and CentOS server 7 for the execution of private browser monitors; Windows Server 2016 support is coming soon as well.

Network 158

Network Monitoring Servers Hardware 158

The Morning Paper

MAY 21, 2019

” This paper describes a “far memory” system that has been in production deployment at Google since 2016. Using zswap means that no new hardware solutions are required, enabling rapid deployment across clusters. Memory pages moved to zswap are compressed (but the compressed pages stay in memory).

Software 78

Software Software Google Hardware 78

Brendan Gregg

NOVEMBER 29, 2017

Hardware virtualization for cloud computing has come a long way, improving performance using technologies such as VT-x, SR-IOV, VT-d, NVMe, and APICv. The latest AWS hypervisor, Nitro, uses everything to provide a new hardware-assisted hypervisor that is easy to use and has near bare-metal performance. I'd expect between 0.1%

Virtualization 111

Virtualization AWS Hardware Storage 111

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

Alex Podelko

OCTOBER 20, 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. Cloud seriously impacts system architectures that has a lot of performance-related consequences. First, we have a shift to centrally managed systems.

Performance Testing 100

Performance Testing Architecture Testing Performance 100

Alex Russell

MARCH 6, 2021

Back in 2016, I gave a talk outlining the causes and effects of the terrible performance of web apps built using popular tools on the fastest-growing device segment: low-end to mid-range Android phones. In 2016, Jio swept over the subcontinent like a monsoon dropping a torrent of 4G infrastructure and free data rather than rain.

Performance 124

Performance Network Cache Metrics 124

SQL Performance

JUNE 21, 2019

I always check backups first when looking at a new system. Prior to SQL Server 2012, the maximum server memory value only applied to the bufferpool, so customers needed to limit the amount of memory the bufferpool could use to save memory for the operating system and other processes. SQL Server 2016 introduced soft-NUMA nodes.

Servers 49

Servers Azure Hardware Database 49

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. This made it easier for database professionals to make the case for a hardware upgrade, and made the typical upgrade more worthwhile.

Servers 46

Servers Hardware Architecture Retail 46

The Agile Manager

FEBRUARY 29, 2020

Nokia hired a manager from Microsoft to wed the handset business to any alternative mobile operating system to iOS that wasn't made by Google. RIM exited the handset business in 2016. RIM initially doubled down on their core product, but eventually scotched their proprietary OS in favor of Android. Neither strategy paid off.

Artificial Intelligence 52

Artificial Intelligence Social Media Automotive Mobile 52

Brendan Gregg

NOVEMBER 28, 2017

Hardware virtualization for cloud computing has come a long way, improving performance using technologies such as VT-x, SR-IOV, VT-d, NVMe, and APICv. The latest AWS hypervisor, Nitro, uses everything to provide a new hardware-assisted hypervisor that is easy to use and has near bare-metal performance. I'd expect between 0.1%

Virtualization 40

Virtualization AWS Hardware Storage 40

SQL Server According to Bob

NOVEMBER 29, 2016

Back in June, Bob Dorr gave you the thinking behind why SQL Server 2016 It Just Runs Faster due to changes in our SQL Server and NUMA configurations. Bob blogged about a new SQL Server 2016 feature called Auto Soft NUMA. Your NUMA system may not have different processor groups for each node. No user action is required.

Servers 45

Servers Virtualization Scalability Hardware 45

SQL Server According to Bob

JULY 13, 2016

desktop machine (I won’t tell you the hardware details. And the Operating System environment for Windows Server has become more robust but has introduced more features and complexity. We actually launched this functionality for SQL Server 2016 Express Edition when SQL Server 2016 RTM was announced but didn’t really promote this.

Servers 40

Servers Media Engineering Virtualization 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 Performance

NOVEMBER 1, 2019

As you may recall, back in SQL Server 2016 SP1, they opened up all of the programming surface features to all editions, and many (but certainly not all) of the performance and availability features. I wrote about this in a post entitled, " A Big Deal : SQL Server 2016 Service Pack 1." Parting Thoughts.

Servers 40

Servers Hardware Database Availability 40

Alex Russell

APRIL 29, 2021

After 20 years of neck-in-neck competition, often starting from common code lineages, there just isn't that much left to wring out of the system. Consistent improvement is the name of the game, and it can still have positive impacts, particularly as users lean on the system more heavily over time. Some relatively minor additions (e.g.

Media 145

Media Games Education Engineering 145

Alex Russell

FEBRUARY 21, 2023

Before Safari 15, Apple only delivered two substantial releases per year, a pattern that had been stable since 2016: New features were teased at WWDC in the early summer They landed in a Fall dot-oh release with the new iOS version A second set of feature updates would trickle out as part of a Spring point-one update.

Energy 79

Energy Games Engineering Design 79

O'Reilly Software

APRIL 4, 2018

Are there inherent time relationships in the messages that need to be preserved as they travel across the system? In 2016, Apache Spark introduced Structured Streaming , a new streaming engine based on the SparkSQL abstractions and runtime optimizations. Clean and reprocess it? Do I need to preserve ordering? At least once?

Architecture 80

Architecture Scalability Google Operating System 80

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

Randon ASCII

FEBRUARY 25, 2018

In this particular investigation, which spanned twenty months, we suspected hardware failure, compiler bugs, linker bugs, and other possibilities. Jumping too quickly to blaming hardware or build tools is a classic mistake, but in this case the mistake was that we weren’t thinking big enough.

Programming 79

Programming Hardware Cache Code 79

Alex Russell

OCTOBER 22, 2017

Tools and CI systems help them monitor progress & prevent regressions. Some systems show median RTTs near ~100ms for 3G users. Given the conflicted data we see across our other systems, this seems about right as a baseline. The true median device from 2016 sold at about ~$200 unlocked.

Performance 68

Performance Benchmarking Network Mobile 68

Smashing Magazine

JANUARY 15, 2019

how much data does the browser have to download to display your website) and resource usage of the hardware serving and receiving the website. For the more adventurous/technical, the top (table of processes) command provides similar metrics on most Unix-like operating systems such as macOS and Ubuntu. These include data transfer (i.e.

Website Performance 73

Website Performance Website Energy Performance 73

All Things Distributed

DECEMBER 12, 2018

We help Supercell to quickly develop, deploy, and scale their games to cope with varying numbers of gamers accessing the system throughout the course of the day. The second platform is a managed IoT cloud with customer-facing applications and data management, which went live in 2016.

AWS 124

AWS Cloud Games Serverless 124