All Things Distributed

DECEMBER 12, 2018

They can run applications in Sweden, serve end users across the Nordics with lower latency, and leverage advanced technologies such as containers, serverless computing, and more. Vivino has brought AI technology to the world of wine and is all-in on AWS. We launched Edge Network locations in Denmark, Finland, Norway, and Sweden.

AWS 119

AWS Cloud Games Serverless 119

John McCalpin

OCTOBER 16, 2016

“Memory Bandwidth and System Balance in HPC Systems” If you are planning to attend the SuperComputing 2016 conference in Salt Lake City next month, be sure to reserve a spot on your calendar for my talk on Wednesday afternoon (4:15pm-5:00pm).

Architecture 40

Architecture Systems Technology Technology 40

SQL Server According to Bob

SEPTEMBER 26, 2016

Our customers who deployed Availability Groups were now using servers for primary and secondary replicas with 12+ core sockets and flash storage SSD arrays providing microsecond to low millisecond latencies. The rapid acceleration in technology brought on a new discovery and paradigm. one without a replica). See more in this blog post.

Availability 40

Availability Servers Hardware Benchmarking 40

Brendan Gregg

MAY 16, 2017

I previously wrote about Netflix in [2015] and [2016], and if you are interested in what it's like to work here, I already covered much in those posts. During this time we did do plenty of hard work, rolling out new technologies and major microservice versions, and fixed many problems big and small. Time flies!

Java 75

Java Entertainment Engineering Scalability 75

Alex Russell

FEBRUARY 3, 2023

For many years, this effect has dominated the frontend technology market. 1] These technologies were initially pitched on the back of "better user experiences" , but have utterly failed to deliver on that promise outside of the high-management-maturity organisations in which they were born.

Social Media 130

Social Media Website Technology Technology 130

The Morning Paper

MAY 21, 2019

” This paper describes a “far memory” system that has been in production deployment at Google since 2016. This boils down to a single digit µs latency toleration in the tail for far memory, and in addition to security and privacy concerns, rules out remote memory solutions. Evaluation.

Software 78

Software Software Google Hardware 78

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Consistent performance matters just as much as low average latency.

Performance 99

Performance Latency Metrics Engineering 99

Brendan Gregg

JULY 4, 2021

It's an exciting time for developments in computer performance, not just for the BPF technology (which I often [write about]) but also for processors with 3D stacking and cloud vendor CPUs (e.g., Ford, et al., “TCP on Upcoming Sapphire Rapids CPUs,” [link] Oct 2020 - [Liu 20] Linda Liu, “Samsung QVO vs EVO vs PRO: What’s the Difference?

Performance 52

Performance Latency Hardware Storage 52

Brendan Gregg

FEBRUARY 28, 2023

My personal opinion is that I don't see a widespread need for more capacity given horizontal scaling and servers that can already exceed 1 Tbyte of DRAM; bandwidth is also helpful, but I'd be concerned about the increased latency for adding a hop to more memory. It was a great privilege. Ford, et al., “TCP

Performance 52

Performance Latency Cache Virtualization 52

Brendan Gregg

SEPTEMBER 5, 2017

LTS (April 2016). I wrote about it in a previous post, [DTrace for Linux 2016]. Here's some output from my zfsdist tool, in bcc/BPF, which measures ZFS latency as a histogram on Linux: # zfsdist. Tracing ZFS operation latency. The hardest part on Linux is now done: kernel support. Hit Ctrl-C to end. ^C

Virtualization 75

Virtualization AWS Engineering Hardware 75

SQL Performance

FEBRUARY 22, 2021

Recently one of our teams was investigating a log reader latency issue. We pay a lot of attention to latency here, along with any long-running transactions, because of downstream impact to technologies that use the log reader – like Availability Groups and transactional replication.

Latency 57

Latency Servers Monitoring Systems 57

O'Reilly Software

APRIL 4, 2018

To remain competitive in a market that demands real-time responses to these digital pulses, organizations are adopting fast data applications as key assets in their technology portfolio. In 2016, Apache Spark introduced Structured Streaming , a new streaming engine based on the SparkSQL abstractions and runtime optimizations.

Architecture 80

Architecture Scalability Google Operating System 80

Alex Russell

OCTOBER 22, 2017

Most partners we work with are not aware of the real-world operating environment and make inappropriate technology choices as a result. It simulates a link with a 400ms RTT and 400-600Kbps of throughput (plus latency variability and simulated packet loss). The true median device from 2016 sold at about ~$200 unlocked.

Performance 74

Performance Network Benchmarking Mobile 74

Brendan Gregg

OCTOBER 7, 2018

Screenshot: tracing read latency for PID 181: # bpftrace -e 'kprobe:vfs_read /pid == 30153/ { @start[tid] = nsecs; } kretprobe:vfs_read /@start[tid]/ { @ns = hist(nsecs - @start[tid]); delete(@start[tid]); }'. Back then I could already tell if disks were seeking by interpreting iostat(1) output: seeing high disk latency but small I/O.

C++ 40

C++ Virtualization Programming Latency 40

The Symphonia

MAY 22, 2018

I started writing “ Serverless Architectures ” in May 2016. I also rewrote the section on Startup Latency since Cold Starts are one of the big “FUD” areas of Serverless. two ideas that I think are very useful when we’re using technology as rapidly deployable as Serverless ones. I thought a few folks might be interested.

Serverless 40

Serverless Architecture Lambda Azure 40

Testsigma

FEBRUARY 12, 2021

The implementation of emerging technologies has helped improve the process of software development, testing, design and deployment. From AI to ML, the shifting technology world is constantly innovating and making significant progress. billion in 2016. Many changes are rendered through automated testing. Multi-experience testing.

Artificial Intelligence 92

Artificial Intelligence Software Software IoT 92