The Netflix TechBlog

JUNE 14, 2023

By Jennifer Shin , Tejas Shikhare , Will Emmanuel In 2022, a major change was made to Netflix’s iOS and Android applications. The three strategies we will discuss today are AB Testing , Replay Testing, and Sticky Canaries. To launch Phase 1 safely, we used AB Testing.

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Traffic Latency Cache Metrics 353

CSS Wizardry

OCTOBER 16, 2023

In one test, I concatenated it all into one big file, and the other had the library split into 12 files. Read the complete test methodology. Plotted on the same horizontal axis of 1.6s, the waterfalls speak for themselves: 201ms of cumulative latency; 109ms of cumulative download. This will be referred to as css_time.

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Cache Latency Strategy Speed 291

The Netflix TechBlog

JANUARY 10, 2024

This architecture shift greatly reduced the processing latency and increased system resiliency. We expanded pipeline support to serve our studio/content-development use cases, which had different latency and resiliency requirements as compared to the traditional streaming use case. This testing stage took about two weeks.

Processing 229

Processing Media Latency Innovation 229

Testsigma

FEBRUARY 12, 2021

With the latest developments in IT sector services, the sector of QA testing has seen significant improvement and growth. The implementation of emerging technologies has helped improve the process of software development, testing, design and deployment. Many changes are rendered through automated testing. IoT Test Automation.

Artificial Intelligence 92

Artificial Intelligence Software Software IoT 92

Smashing Magazine

NOVEMBER 8, 2021

As developers, we rightfully obsess about the customer experience, relentlessly working to squeeze every millisecond out of the critical rendering path, optimize input latency, and eliminate jank. Stay tuned for more in 2022! Ilya Grigorik. 2021-11-08T14:30:00+00:00. 2021-11-08T19:34:34+00:00. Large preview ).

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Cache Best Practices Strategy Servers 136

Alex Russell

DECEMBER 18, 2022

Per the 2022 Web Almanac , which pulls data from real-world devices via the CrUX dataset , today's web offers poor performance for most users. These are depressingly similar specs to devices I recommended for testing in 2017. 4GiB of RAM. Qualcomm has some 'splainin to do. But this also gives rise to the critique: OK, but does it work?

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Performance Network Mobile Latency 113

Alex Russell

JANUARY 30, 2024

Doing a good job in an uneven network environment requires thinking about availability and engineering for resilience and a lightweight footprint — always better to avoid testing the radio gods than it is spending weeks or months appeasing them after the damage is done. Counterpoint data shows declining sales in both 2022 and 2023.

Performance 90

Performance Network Mobile Speed 90