The Morning Paper

MAY 27, 2019

The work includes changes to the CHERI ISA, the C compiler, the C language runtime, the virtual memory APIs, and the CheriBSD kernel. On a context switch the kernel saves and restores user-thread register capability state, and updates virtual-physical mappings. The protections are hardware implemented and cannot be forged in software.

C++ 61

C++ Hardware Virtualization Benchmarking 61

The Morning Paper

NOVEMBER 8, 2020

Virtual consensus in Delos , Balakrishnan et al. USENIX is a nonprofit organisation committed to making content and research freely available – both conference proceedings and the recorded presentations of their events. Without in-person conferences this year, income is down and events are under threat.

Virtualization 126

Virtualization Latency Storage Systems 126

Adrian Cockcroft

JUNE 21, 2022

We had specializations in hardware, operating systems, databases, graphics, etc. Jim Mauro and Allan Packer visited on rotation from New Jersey, and Adelaide Australia, and worked out how to produce a database sizing guide for Oracle Financials, which I wrote up and published. Jim also joined the database performance team.

Tuning 52

Tuning Benchmarking Engineering C++ 52

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. top(1) showed that only the Cassandra database was consuming CPU. This was much worse many years ago on Xen virtual machine guests.

Speed 126

Speed Java AWS Virtualization 126

O'Reilly

FEBRUARY 18, 2020

there’s a Python library for virtually anything a developer or data scientist might need to do. The most popular CM tools are DevOps focused, and, like DevOps itself, they’re declining: usage in the CM topic dropped significantly (-18%) in 2019, as did virtually all CM tools. Interestingly, R itself continues to decline.

Software Architecture 137

Software Architecture DevOps Data Engineering Architecture 137

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. top(1) showed that only the Cassandra database was consuming CPU. This was much worse many years ago on Xen virtual machine guests.

Speed 52

Speed Java AWS Virtualization 52

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. top(1) showed that only the Cassandra database was consuming CPU. This was much worse many years ago on Xen virtual machine guests.

Speed 40

Speed Java AWS Virtualization 40

All Things Distributed

OCTOBER 2, 2017

Today marks the 10 year anniversary of Amazon's Dynamo whitepaper , a milestone that made me reflect on how much innovation has occurred in the area of databases over the last decade and a good reminder on why taking a customer obsessed approach to solving hard problems can have lasting impact beyond your original expectations.

Internet 128

Internet Internet AWS Performance 128

Smashing Magazine

DECEMBER 22, 2021

Their design tools database features tools for everything from UI design and prototyping, to user flow and handoff, design systems and versioning. Stéphanie Walter gave a talk about enhancing UX with CSS animations at the virtual Shift Remote conference in August last year.

Airlines 130

Airlines Mobile Design Strategy 130

The Symphonia

DECEMBER 6, 2017

One of the most significant announcements of the entire conference to me was that of per-function concurrency control. Correspondingly, 3GB functions should see a 2x CPU performance improvement over 1.5GB Lambdas, but this is through doubling the number of cores the function has access to, rather than double the virtualized time-slices.

Serverless 40

Serverless Lambda AWS Traffic 40