The Morning Paper

MAY 27, 2019

Last week we saw the benefits of rethinking memory and pointer models at the hardware level when it came to object storage and compression ( Zippads ). The protections are hardware implemented and cannot be forged in software. At hardware reset the boot code is granted maximally permissive architectural capabilities.

C++ 61

C++ Hardware Virtualization Benchmarking 61

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. System’s configuration is not given anymore and often can’t be easily mapped to hardware. – Cloud. – Agile. – Continuous Integration.

Performance Testing 100

Performance Testing Architecture Testing Performance 100

The Morning Paper

SEPTEMBER 19, 2019

There were so many interesting papers at the conference this year though that I haven’t been able to cover nearly as many as I would like. MongoDB is an important database, and this paper explains the tunable (per-operation) consistency models that MongoDB provides and how they are implemented under the covers. Industry papers.

Blockchain 46

Blockchain Hardware Google Analytics 46

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. top(1) showed that only the Cassandra database was consuming CPU. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. But I'm not completely sure.

Speed 126

Speed Java AWS Virtualization 126

VoltDB

JUNE 19, 2017

One of the big topics at the OpenStack conference was how to prepare and implement a successful transition to 5G. With the 5G revolution, operators will need to manage hundreds of edge deployments, and maintain the physical space and hardware to achieve 1ms of latency. These types of applications justify the cost of 5G.

Latency 40

Latency Retail Virtualization Hardware 40

VoltDB

JUNE 19, 2017

One of the big topics at the OpenStack conference was how to prepare and implement a successful transition to 5G. With the 5G revolution, operators will need to manage hundreds of edge deployments, and maintain the physical space and hardware to achieve 1ms of latency. These types of applications justify the cost of 5G.

Latency 40

Latency Retail Virtualization Hardware 40

Adrian Cockcroft

JUNE 21, 2022

I became the Sun UK local specialist in performance and hardware, and as Sun transitioned from a desktop workstation company to sell high end multiprocessor servers I was helping customers find and fix scalability problems. We had specializations in hardware, operating systems, databases, graphics, etc.

Tuning 52

Tuning Benchmarking Engineering C++ 52

SQL Performance

NOVEMBER 1, 2019

Accelerated Database Recovery is in Standard Edition. This way your memory limit is based on how much you spent on licensing, not some arbitrary limit decided in a conference room somewhere 5 years ago. I wrote about this in a post entitled, " A Big Deal : SQL Server 2016 Service Pack 1."

Servers 40

Servers Hardware Database Availability 40

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. top(1) showed that only the Cassandra database was consuming CPU. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI.

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%. top(1) showed that only the Cassandra database was consuming CPU. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. But I'm not completely sure.

Speed 40

Speed Java AWS Virtualization 40

Smashing Magazine

JANUARY 15, 2019

The Green Web Foundation maintains an ever-growing database of web hosts who are either wholly powered by renewable energy or are at least committed to being carbon neutral. For the last three years, the SustainableUX conference has seen experts in web sustainability sharing their knowledge across an array of web-based disciplines.

Website Performance 73

Website Performance Website Energy Performance 73

Adrian Cockcroft

NOVEMBER 11, 2019

This discussion focuses on hardware, software and operational failure modes. It would take 5–10 minutes after the problem occurred to appear as a problem, then people have to notice and respond to emails or pager text messages, dial into a conference call, and log in to monitoring dashboards before any human response can start.

Latency 52

Latency Engineering Systems Hardware 52

Adrian Cockcroft

NOVEMBER 11, 2019

This discussion focuses on hardware, software and operational failure modes. It would take 5–10 minutes after the problem occurred to appear as a problem, then people have to notice and respond to emails or pager text messages, dial into a conference call, and log in to monitoring dashboards before any human response can start.

Latency 53

Latency Engineering Systems Hardware 53