The Netflix TechBlog

OCTOBER 21, 2019

A few noteworthy examples include: Realtime monitoring of Netflix streaming health which examines all of Netflix’s streaming video traffic in realtime and accurately identifies negative impact on the viewing experience with fine-grained granularity. Acknowledgements A lot of work has gone into making Mantis successful at Netflix.

Open Source 148

Open Source Metrics Engineering Processing 148

The Netflix TechBlog

OCTOBER 21, 2019

A few noteworthy examples include: Realtime monitoring of Netflix streaming health which examines all of Netflix’s streaming video traffic in realtime and accurately identifies negative impact on the viewing experience with fine-grained granularity. Acknowledgements A lot of work has gone into making Mantis successful at Netflix.

Open Source 101

Open Source Metrics Engineering Processing 101

The Netflix TechBlog

OCTOBER 21, 2019

A few noteworthy examples include: Realtime monitoring of Netflix streaming health which examines all of Netflix’s streaming video traffic in realtime and accurately identifies negative impact on the viewing experience with fine-grained granularity. Acknowledgements A lot of work has gone into making Mantis successful at Netflix.

Open Source 100

Open Source Metrics Engineering Processing 100

The Morning Paper

SEPTEMBER 24, 2019

The apps are driven using Android’s Application Exerciser Monkey which injects a pseudo-random stream of simulated user input events into the app (a UI fuzzer). Network traffic is also monitored, included all TLS-secured traffic where the developers hadn’t used certificate pinning (i.e., most apps). most apps).

Systems 74

Systems Traffic Network Google 74

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. Following the value chain from the business perspective, the first team is the product managers and developers who specify and build the unique code that makes up the business logic of the system.

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. Following the value chain from the business perspective, the first team is the product managers and developers who specify and build the unique code that makes up the business logic of the system.

Latency 53

Latency Engineering Systems Hardware 53

Dynatrace

SEPTEMBER 20, 2019

One is the currently-running production environment receiving all user traffic (let’s say the “blue” one), the other is a clone of it (“green”), but idle. Once the testing results are successful, application traffic is routed from blue to green. Response time for blue/green environment traffic. Dynatrace Davis in action.

Systems 27

Systems Traffic DevOps Database 27

John McCalpin

AUGUST 1, 2018

Bandwidth, performance analysis has two recurring themes: How fast should this code (or “simple” variations on this code) run on this hardware? Interacting components in the execution of an MPI job — a brief outline (from memory): The user source code, which contains an ordered set of calls to MPI routines.

Hardware 40

Hardware Transportation Performance Latency 40

SQL Performance

JUNE 10, 2020

That is, does SQL Server perform a substitution process whereby it converts the original nested code into one query that goes directly against the base tables? The answer is simple, to shorten the code by having the inner query use the infamous SELECT *. And if so, is there a way to instruct SQL Server to avoid this unnesting process?

C++ 109

C++ Database Servers Code 109

SQL Performance

JUNE 10, 2020

That is, does SQL Server perform a substitution process whereby it converts the original nested code into one query that goes directly against the base tables? The answer is simple, to shorten the code by having the inner query use the infamous SELECT *. And if so, is there a way to instruct SQL Server to avoid this unnesting process?

C++ 93

C++ Database Servers Code 93

SQL Server According to Bob

FEBRUARY 10, 2019

I started with a cmd file script exercising the connection path. Running along and all the sudden no traffic occurring at the SQL Server for a few seconds, then stress kicked back in. We then found a few code paths in find login that did not switch to preemptive before making a call to SSSD or LDAP for Linux, AD activities.

Servers 40

Servers Network Database Systems 40

The Agile Manager

FEBRUARY 28, 2017

Tool 1: Dolly the Sheep Companies that are heavily rule-based - think insurance - eagerly moved their business rules into code. It was easy to move into code; it's just as easy to move it back into human-readable format. A clone of something extinct - our lost business knowledge - runs the risk of suffering severe defects.

Strategy 40

Strategy Java Code Systems 40