The Morning Paper

JUNE 30, 2019

Here’s the set-up as relayed to me by Pat (with permission): At work, I am part of a good sized team working on a large system implementation. One of the very senior engineers with 25+ years experience mentioned a problem with the system. In such a situation I’d expect to see unusually high latencies, but normal throughput).

Traffic 75

Traffic Latency Programming Scalability 75

Speed Curve

FEBRUARY 5, 2024

Latency – How much time does it take to deliver a packet from A to B. For example, processing of web application firewall (WAF) rules, detecting bots or other malicious traffic though security services, and growing in popularity, edge compute. Definitely worth a read! Also measured by round trip time (RTT).

Servers 57

Servers Cache Retail Benchmarking 57

Percona

MAY 15, 2023

The main reason behind this is that MySQL is a relational database system (RDBMS), and any data that is going to be written in it must respect the RDBMS rules. Normally this solution requires a full code redesign and could be quite difficult to achieve when it is injected after the initial code architecture definition.

Traffic 122

Traffic Scalability Database Servers 122

KeyCDN

FEBRUARY 4, 2021

DNS, which stands for domain name system , is an Internet service that translates domains names into IP addresses. So DNS services definitely go down! A quick way to fix this is simply by temporarily changing the TTL (time to live) setting for the DNS record, and route your traffic to the second DNS server until the outage is fixed.

Cache 134

Cache Website Internet Internet 134

The Netflix TechBlog

JUNE 14, 2023

And we definitely couldn’t replay test non-functional requirements like caching and logging user interaction. The control group’s traffic utilized the legacy Falcor stack, while the experiment population leveraged the new GraphQL client and was directed to the GraphQL Shim.

Traffic 353

Traffic Latency Cache Metrics 353

Alex Russell

JULY 14, 2021

Meanwhile, on Android, the #2 and #3 sources of web traffic do not respect browser choice. The predominant desktop situation is relatively straightforward: Browsers handle links, and non-browsers defer loading http and https URLs to the system, which in turn invokes the default browser. The Baseline Scenario #. " you might ask?

Google 121

Google Mobile Engineering Internet 121

Percona

MAY 2, 2023

As a MongoDB user, it’s crucial to ensure that your data is safe and secure in the event of a disaster or system failure. Regular database backups are essential to protect against data loss caused by system failures, human errors, natural disasters, or cyber-attacks. Why are MongoDB database backups important?

Best Practices 52

Best Practices Database Storage Servers 52

Alex Russell

MARCH 6, 2021

Sadly, data on latency is harder to get, even from Google's perch, so progress there is somewhat more difficult to judge. CrUX data collection and first-party RUM analytics of these metrics require live traffic, meaning results can be predicted but only verified once deployed. It's hard to escape thinking they're connected.

Performance 124

Performance Network Cache Metrics 124

The Netflix TechBlog

JANUARY 10, 2024

Since then, the video pipeline has undergone substantial improvements and broad expansions: Starting with Standard Dynamic Range (SDR) at Standard-Definitions , we expanded the encoding pipeline to 4K and High Dynamic Range (HDR) which enabled support for our premium offering. This introductory blog focuses on an overview of our journey.

Processing 229

Processing Media Latency Innovation 229

The Netflix TechBlog

JULY 26, 2021

This happens at an unprecedented scale and introduces many interesting challenges; one of the challenges is how to provide visibility of Studio data across multiple phases and systems to facilitate operational excellence and empower decision making. Genesis Data Source and Input definition example Genesis is a stateless CLI written in Node.js

Big Data 253

Big Data Government Analytics Processing 253

Alex Russell

OCTOBER 22, 2017

Tools and CI systems help them monitor progress & prevent regressions. Some systems show median RTTs near ~100ms for 3G users. Contended, over-subscribed cells can make “fast” networks brutally slow, transport variance can make TCP much less efficient , and the bursty nature of web traffic works against us.

Performance 68

Performance Benchmarking Network Mobile 68

The Netflix TechBlog

AUGUST 13, 2020

Our streaming teams need a monitoring system that enables them to quickly diagnose and remediate problems; seconds count! Our Node team needs a system that empowers a small group to operate a large fleet. Regional traffic evacuations. So we built Telltale. The Telltale timeline. Especially during an incident.

Monitoring 210

Monitoring Tuning Traffic Metrics 210

Brendan Gregg

SEPTEMBER 5, 2017

What follows are topics that may be of interest to anyone looking to migrate their systems and skillset: scan these to find topics that interest you. ## ZFS ZFS is available for Linux via the [zfsonlinux] and [OpenZFS] projects, and more recently was included in Canonical's Ubuntu Linux distribution: Ubuntu Xenial 16.04 LTS (April 2016).

Virtualization 76

Virtualization AWS Engineering Hardware 76

Smashing Magazine

JANUARY 11, 2021

CrUX generates an overview of performance distributions over time, with traffic collected from Google Chrome users. But account for the different types and usage behaviors of your customers (which Tobias Baldauf called cadence and cohorts ), along with bot traffic and seasonality effects. You can create your own on Chrome UX Dashboard.

Performance 145

Performance Cache Media Metrics 145

The Netflix TechBlog

FEBRUARY 9, 2021

Server-generated assets, since client-side generation would require the retrieval of many individual images, which would increase latency and time-to-render. To reduce latency, assets should be generated in an offline fashion and not in real time. Let’s put it all together and review the system interaction diagram.

Engineering 165

Engineering Storage Latency Entertainment 165

Smashing Magazine

JANUARY 7, 2019

For Mac OS, we can use Network Link Conditioner , for Windows Windows Traffic Shaper , for Linux netem , and for FreeBSD dummynet. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Lighthouse , a performance auditing tool integrated into DevTools. Large preview ).

Performance 104

Performance Cache Metrics Network 104

Smashing Magazine

JANUARY 6, 2020

For Mac OS, we can use Network Link Conditioner , for Windows Windows Traffic Shaper , for Linux netem , and for FreeBSD dummynet. Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms. Lighthouse , a performance auditing tool integrated into DevTools. Large preview ).

Performance 145

Performance Cache Network Metrics 145

Smashing Magazine

AUGUST 22, 2021

Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). Two-way latency is often called round-trip time (RTT).

Performance 107

Performance Network Latency Servers 107

Smashing Magazine

SEPTEMBER 6, 2021

Finally, not inlining resources has an added latency cost because the file needs to be requested. As discussed in part 2 , in HTTP/2, this multiplexing is steered using its prioritization system. As also explained in part 2 , HTTP/3 fundamentally changes the internals of this prioritization system. Nothing has been announced.

Network 107

Network Servers Cache Traffic 107