The Netflix TechBlog

OCTOBER 19, 2020

If we had an ID for each streaming session then distributed tracing could easily reconstruct session failure by providing service topology, retry and error tags, and latency measurements for all service calls. Our engineering teams tuned their services for performance after factoring in increased resource utilization due to tracing.

Infrastructure 237

Infrastructure Transportation Storage Open Source 237

Brendan Gregg

MAY 16, 2017

A latency outlier issue that happened every 15 minutes. For Linux, I've also done tuning, kernel analysis, [gdb], testing of [hist triggers], testing of some perf patches, and contributed a few trivial patches of my own. html [The PMCs of EC2]: /blog/2017-05-04/the-pmcs-of-ec2.html Java core dump analysis for a crashing JVM. -

Java 75

Java Entertainment Engineering Scalability 75

SQL Performance

SEPTEMBER 17, 2019

For years SSRS was bundled with the installation of SQL Server, which helped add to some of the confusion around licensing and support for the product, so beginning with SSRS 2017, the installation package for Reporting Services is a separate download. Tuning Options. Tuning SSRS is much like any other application.

Tuning 67

Tuning Servers Database Best Practices 67

Brendan Gregg

SEPTEMBER 5, 2017

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. Both Xen and KVM have had many performance and security improvements, and workloads can now be tuned to run at almost bare metal speeds (say, a 3% loss or less). Hit Ctrl-C to end. ^C

Virtualization 75

Virtualization AWS Engineering Hardware 75

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. The change was obvious in the production graphs, showing a drop in write latencies: Once tested more broadly, it showed the write latencies dropped by 43%, delivering slightly better performance than on CentOS.

Speed 103

Speed Java AWS Virtualization 103

Scalegrid

AUGUST 27, 2024

The software also extends capabilities allowing fine-tuning consumption parameters through QoS (Quality of Service) prefetch limits catered toward balancing load among numerous consumers, thus preventing overwhelming any single consumer entity. Take Softonic’s platform as an example. RabbitMQ in Action. Manning Publications.

IoT 130

IoT Ecommerce Games Scalability 130

All Things Distributed

OCTOBER 2, 2017

In support of Amazon Prime Day 2017, the biggest day in Amazon retail history, DynamoDB served over 12.9 Performant – DynamoDB consistently delivers single-digit millisecond latencies even as your traffic volume increases. million requests per second.

Internet 110

Internet Internet AWS Performance 110