Brendan Gregg

JUNE 29, 2018

sounds like a homework exercise of purely academic value. I've refuted many benchmarks by showing that they would require a network throughput that would far exceed the maximum network bandwidth (off by, for example, as much as 10x!). Networking is the easiest to check. This is really asking "what's the limiter?"

Benchmarking 40

Benchmarking Latency Cache Network 40

The Morning Paper

DECEMBER 8, 2019

Traditionally one of the major costs when moving data in and out of memory (be it to persistent media or over the network) is serialisation. This is left as an exercise for the application developer at present. in front of that memory , as we saw last week). In particular, it’s goodbye to the POSIX interface. What about security?

Hardware 56

Hardware Programming Media Storage 56

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. They are concerned with physical locations and cloud regions, networking failures, problems with infrastructure hardware, and failures of the control planes used to provision and manage infrastructure.

Latency 52

Latency Engineering Systems Hardware 52

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. They are concerned with physical locations and cloud regions, networking failures, problems with infrastructure hardware, and failures of the control planes used to provision and manage infrastructure.

Latency 53

Latency Engineering Systems Hardware 53

The Morning Paper

APRIL 16, 2019

During the ten week course, students implement four different assignments: an exactly-once RPC protocol; a primary-backup system; Paxos; and a scalable, transactional key-value storage system. The networking model is asynchronous (allowing out of order, dropped, delayed, and duplicated messages), the failure model is crash-stop.

Systems 43

Systems Efficiency Testing Strategy 43

Alex Russell

SEPTEMBER 20, 2020

Not draining other's bank accounts may be something of an exercise to the reader. ??. webviews can plumb arbitrary native capabilities into web content they host, providing isolated-storage with expanded powers. Skipping over the web and its success is a curious blind-spot for such thoughtful tech observers.

Hardware 64

Hardware Mobile Programming Java 64

SQL Performance

JUNE 10, 2020

The relational model and the standard querying language that is based on it are supposed to deal only with the conceptual aspects of the data and leave the physical implementation details like storage, optimization, access and processing of the data to the database platform (the implementation ). The application could end up with bugs.

C++ 109

C++ Database Servers Code 109

Alex Russell

AUGUST 30, 2021

Large projects like browser engines also exercise governance through a hierarchy of "OWNER bits," which explicitly name engineers empowered to permit changes in a section of the codebase. Project owners are territorial, fiercely guarding the integrity of their codebases.

Engineering 98

Engineering Open Source Website Operating System 98

SQL Performance

JUNE 10, 2020

The relational model and the standard querying language that is based on it are supposed to deal only with the conceptual aspects of the data and leave the physical implementation details like storage, optimization, access and processing of the data to the database platform (the implementation ). The application could end up with bugs.

C++ 93

C++ Database Servers Code 93

All Things Distributed

OCTOBER 2, 2017

VPC Endpoints give you the ability to control whether network traffic between your application and DynamoDB traverses the public Internet or stays within your virtual private cloud. Secure – DynamoDB provides fine-grained access control at the table, item, and attribute level, integrated with AWS Identity and Access Management.

Internet 128

Internet Internet AWS Performance 128

The Netflix TechBlog

MARCH 6, 2019

Mounting object storage in Netflix’s media processing platform By Barak Alon (on behalf of Netflix’s Media Cloud Engineering team) MezzFS (short for “Mezzanine File System”) is a tool we’ve developed at Netflix that mounts cloud objects as local files via FUSE. Our object storage service splits objects into many parts and stores them in S3.

Media 214

Media Storage Processing Cache 214

All Things Distributed

NOVEMBER 15, 2010

Configuring kernel execution is not a trivial exercise and requires GPU device specific knowledge. These programs that rely on significant network I/O will also benefit from the low latency, full bisection bandwidth 10Gbps Ethernet network between the instances in the clusters. Driving Storage Costs Down for AWS Customers.

AWS 136

AWS Latency Programming Architecture 136