Adrian Cockcroft

JANUARY 20, 2023

Most of the top supercomputers are similar to Frontier, they use AMD or Intel CPUs, with GPU accelerators, and Cray Slingshot or Infiniband networks in a Dragonfly+ configuration. I presented a keynote for Sun at Supercomputing 2003 in Phoenix Arizona and included the slide shown below. Comparing CXL3.0

Architecture 52

Architecture Latency Benchmarking AWS 52

Percona

AUGUST 25, 2023

3308", "memberRole": "SECONDARY", "memberState": "(MISSING)", "mode": "n/a", "readReplicas": {}, "role": "HA", "shellConnectError": "MySQL Error 2003: Could not open connection to '127.0.0.1:3308': MySQL localhost:3309 ssl JS > cluster1.status() 3309' and cannot process write transactions. 3308": { "address": "127.0.0.1:3308",

Traffic 77

Traffic Database C++ Servers 77

Dotcom-Montior

OCTOBER 6, 2021

The term site reliability engineering first came into existence at Google in 2003 when a site reliability team was created. He was asked in 2003 to create and manage a team of seven engineers which eventually led him to create the new role/title. At that time, the team was made up of software engineers.

Engineering 67

Engineering DevOps Monitoring Google 67

All Things Distributed

DECEMBER 18, 2012

Werner Vogels weblog on building scalable and robust distributed systems. Jul 20 - Disco: Running Commodity Operating Systems on Scalable Multiprocessors by Edouard Bugnion, Scott Devine, Kinshuk Govil, Mendel Rosenblum in the Proceedings of the 16th ACM Symposium on Operating Systems Principles, October 5-8, 1997, St. Comments ().

Operating System 144

Operating System Cache AWS Scalability 144

The Morning Paper

JUNE 23, 2019

The network latency of fetching data over the network, even considering fast data center networks. We argue that RInK stores should not be used when implementing scalable data center services. Yes, a bit like those 2nd-level caches we were talking about earlier, e.g. Ehcache from 2003 onwards. Who knew! ;).

Cache 79

Cache Latency Google Lambda 79

Adrian Cockcroft

JUNE 21, 2022

The early days at Sun Cambridge were special, I absorbed a lot about networking and the technical side of the role from my fellow systems engineer Martin Baines, and we were driving all over the region in cool company cars (I had a Citroen BX 16V) selling a really hot product.

Tuning 52

Tuning Benchmarking Engineering C++ 52

HammerDB

JULY 5, 2022

We use stored procedures because, as the introductory post shows, using single SQL statements turns our database benchmark into a network test). So instead we are going to take a cut down version of the HammerDB TPROC-C driver script and do the same in Python and use the HammerDB infrastructure to measure performance.

Benchmarking 98

Benchmarking Database C++ Virtualization 98