Dynatrace

AUGUST 27, 2019

Step 5 – xMatters triggers a runbook in Ansible to fix the disk latency. As a last step, xMatters triggers a runbook in Ansible to push the disk latency fix. In this case, a team member determines that the best course of action is to delete temporary files from disk to free up processing power and return the disk to proper health.

Systems 176

Systems Latency DevOps Azure 176

High Scalability

MARCH 22, 2019

µs of replication latency on lossy Ethernet, which is faster than or comparable to specialized replication systems that use programmable switches, FPGAs, or RDMA.". At some point, the e-mail I send over WiFi will hit a wire, of course". We achieve 5.5 matthewstoller : I just looked at Netflix’s 10K.

Internet 134

Internet Internet Scalability Wireless 134

CSS Wizardry

APRIL 22, 2020

Of course, this total of 100% only measures compressible responses that actually were compressed—there are still many millions of resources that could or should have been compressed but were not. TCP, Packets, and Round Trips. The point I’m driving at here is that it’s not just about file-size, it’s about TCP, packets, and round trips.

Latency 269

Latency Servers Website Speed 269

The Morning Paper

JANUARY 30, 2020

Edge servers are the middle ground – more compute power than a mobile device, but with latency of just a few ms. The client MWW combines these estimates with an estimate of the input/output transmission time (latency) to find the worker with the minimum overall execution latency.

Mobile 104

Mobile Cloud Latency Games 104

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. And, of course, the result needs to be seamless and delightful — dare we say, even fun — to develop and maintain. Ilya Grigorik.

Cache 135

Cache Best Practices Strategy Servers 135

The Morning Paper

OCTOBER 6, 2019

Prediction serving latency matters. Lesson 4: prediction serving latency matters. In a experiment introducing synthetic latency, Booking.com found that an increase of about 30% in latency cost about 0.5% Even mathematically simple models have the potential of introducing relevant latency.

Latency 102

Latency Metrics Cache Design 102

CSS Wizardry

OCTOBER 27, 2018

The short answers are, of course ‘all the time’ and ‘everyone’, but this mutual disownership is a common reason why performance often gets overlooked. Of course, it is impossible to fix (or even find) every performance issue during the development phase. Unfortunately, most issues do not get captured at this point. Who: Engineers.

Performance Testing 172

Performance Testing Testing Performance Strategy 172

High Scalability

AUGUST 17, 2018

12 million requests / hour with sub-second latency, ~300GB of throughput / day. And of course it would work on an Apple II and other 8 bit micros (Logo ran nicely on them, etc.). @coryodaniel : Rewrote an #AWS APIGateway & #lambda service that was costing us about $16000 / month in #elixir. myelixirstatus !#Serverless.No

Internet 105

Internet Internet Scalability Games 105

The Morning Paper

JUNE 13, 2019

Making queries to an inference engine has many of the same throughput, latency, and cost considerations as making queries to a datastore, and more and more applications are coming to depend on such queries. First off there still is a model of course (but then there are servers hiding behind a serverless abstraction too!). autoscaling).

Hardware 58

Hardware Latency Serverless Energy 58

Smashing Magazine

AUGUST 15, 2023

Large preview ) While browsers are generally pretty fast, these steps still take time to load, typically in seconds, and even longer on slower, high-latency network connections. If you’re CMS or framework does not, there are services such as Cloudinary that can handle this for you (for a fee, of course).

Media 73

Media Metrics Mobile Best Practices 73

Dotcom-Montior

NOVEMBER 16, 2021

As defined by the Google SRE initiative, the four golden signals of monitoring include the following metrics: Latency. Latency is the amount of time, or delay, a service takes to respond to a request. Clearly, slow response times will affect the perceived user experience. Monitoring can provide a way to differentiate between.

Monitoring 91

Monitoring Google DevOps Engineering 91

Particular Software

JUNE 3, 2019

From Udi Dahan's Advanced Distributed Systems Design Course , Day 1 Problem of scale The real problem with bandwidth is not one of absolute speed but one of scale. Design systems to deal with limited bandwidth: See what Udi has to say in Day 1 of his Advanced Distributed Systems Design video course. "Goldilocks"

Latency 40

Latency Speed Network Strategy 40

The Morning Paper

SEPTEMBER 5, 2019

For response times (latencies) reporting a simple metric such as ‘average’ is next to useless. Instead we want to understand what’s happening at different latency percentiles (e.g A characteristic of latency distributions is that they have a long tail. Why do we need a new sketch? At the 50th percentile, an accuracy within 0.5%

Latency 52

Latency Metrics Open Source Java 52

The Morning Paper

SEPTEMBER 1, 2019

At the end of the day, you get the dual benefit of higher throughput and lower latency (as compared to coordination-based approaches) coupled with knowing that there isn’t some nasty invariant-violating concurrency bug waiting to bite you (so long as you specified your invariants and operation effects correctly of course!).

Database 42

Database Latency Games Design 42

Dotcom-Montior

DECEMBER 8, 2021

We are kidding of course, but you know something is bad if happens that early in the morning. Knowing when and where an error, downtime, or application latency occurs is a critical factor in limiting the impact to users and customers. Nothing good happens at 2:00 a.m., especially when we are talking about the IT industry.

Social Media 90

Social Media Monitoring Latency DevOps 90

O'Reilly

JANUARY 16, 2024

Unpredictable wait times : Wait times (latency) for ChatGPT’s responses are unpredictable, and there aren’t audio cues to help me establish an expectation for how long I need to wait before it responds. Misrecognizing words is forgivable, but I feel that it shouldn’t ever interpret background sounds as words.

Entertainment 73

Entertainment Internet Internet Design 73

The Morning Paper

FEBRUARY 23, 2020

How’s that going to work given what we know about the throughput and latency of blockchains, and the associated mining costs?" " And the answer of course, is the by now familiar move of keeping most of this off of the blockchain using off-chain protocols ( state channels ). An embodiment for structured data for IoT.

Blockchain 94

Blockchain Internet Internet IoT 94

The Morning Paper

NOVEMBER 24, 2019

The paper sets the discussion in the context of geo-replicated distributed systems, but of course the same mechanisms could be equally useful in the context of local-first applications. Local operation, global coordination.

Strategy 104

Strategy Latency Systems Processing 104

O'Reilly

DECEMBER 2, 2019

For applications like communication between AVs, latency–how long it takes to get a response–is more likely to be a bigger limitation than raw bandwidth, and is subject to limits imposed by physics. There are impressive estimates for latency for 5G, but reality has a tendency to be harsh on such predictions.

Wireless 53

Wireless Serverless IoT Artificial Intelligence 53

The Symphonia

MAY 22, 2018

Of course publishing it on Martin Fowler’s site was always going to get it to a wider audience (thanks Martin!), I also rewrote the section on Startup Latency since Cold Starts are one of the big “FUD” areas of Serverless. Because of course it did. Finally, of course, there’s the community section.

Serverless 40

Serverless Architecture Lambda Azure 40

All Things Distributed

NOVEMBER 19, 2010

Big news this week was of course the launch of Cluster GPU instances for Amazon EC2. Understanding Throughput-Oriented Architectures - background article in CACM on massively parallel and throughput vs latency oriented architectures. By Werner Vogels on 19 November 2010 07:51 AM. Comments ().

AWS 67

AWS Cloud Benchmarking Storage 67

Sutter's Mill

FEBRUARY 13, 2017

Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). On April 25-27, I’ll be in Stockholm (Kista) giving a three-day seminar on “High-Performance and Low-Latency C++.” If you’re interested in attending, please check out the links, and I look forward to meeting and re-meeting many of you there.

Latency 51

Latency C++ Hardware Performance 51

Dynatrace

MAY 17, 2023

The other sections on that page (such as Disk analysis) provide further information and charts on topics such as available disk space, latency, dropped network packets, refused connections, and more. This allows us to quickly tell whether the network link may be saturated or the processor is running at its limit.

Metrics 168

Metrics Monitoring Database Network 168

Scalegrid

NOVEMBER 25, 2019

ScyllaDB offers significantly lower latency which allows you to process a high volume of data with minimal delay. percentile latency is up to 11X better than Cassandra on AWS EC2 bare metal. So what are some of the reasons why users would pick ScyllaDB vs. Cassandra? So this type of performance has to come at a cost, right?

Big Data 187

Big Data Database Open Source Azure 187

KeyCDN

SEPTEMBER 12, 2019

The file size of your images of course is very important, but SEO and social media also play an important part in helping your website perform and convert better. The main reason is because it decreases the latency to the user where they are located by serving your images from a POP physically closest to them.

Social Media 106

Social Media Media Google Website 106

The Netflix TechBlog

MAY 14, 2021

It enables a Production Office Coordinator to keep a Production’s cast, crew, and vendors organized and up to date with the latest information throughout the course of a title’s filming. We are expected to process 1,000 watermarks for a single distribution in a minute, with non-linear latency growth as the number of watermarks increases.

Traffic 160

Traffic Latency Java Google 160

CSS Wizardry

AUGUST 13, 2019

Although this response has a 0B filesize, we will always take the latency hit on every single page view (and this response is basically 100% latency). com , which introduces yet more latency for the connection setup. On mobile connections, this can amount to whole seconds of delays, all sat on the Critical Path.

Latency 203

Latency Cache Strategy Media 203

Percona

DECEMBER 11, 2023

DLVs are particularly advantageous for databases with large allocated storage, high I/O per second (IOPS) requirements, or latency-sensitive workloads. The DLV, of course, affects the WRITE operations the most, and hence, the write-only test should be given the most consideration for the comparison of the DLV configuration vs. standard RDS.

AWS 103

AWS Benchmarking Performance Traffic 103

Scalegrid

FEBRUARY 8, 2024

Durability Availability Fault tolerance These combined outcomes help minimize latency experienced by clients spread across different geographical regions. Opting for synchronous replication within distributed storage brings about reinforced consistency and integrity of data, but also bears higher expenses than other forms of replicating data.

Storage 130

Storage Systems Big Data Azure 130

The Morning Paper

JANUARY 28, 2020

Shredder is " a low-latency multi-tenant cloud store that allows small units of computation to be performed directly within storage nodes. " " Running end-user compute inside the datastore is not without its challenges of course. V8 is lightweight enough that it can easily support thousands of concurrent tenants.

Serverless 99

Serverless Storage Latency Cloud 99

The Morning Paper

FEBRUARY 6, 2020

Oh, and there’s a scheduler too of course to keep all the plates spinning. On the Cloudburst design teams’ wish list: A running function’s ‘hot’ data should be kept physically nearby for low-latency access. A low-latency autoscaling KVS can serve as both global storage and a DHT-like overlay network.

Lambda 98

Lambda Serverless Cache Latency 98

Alex Russell

FEBRUARY 3, 2023

They understood that most websites lack tight latency budgeting, dedicated performance teams, hawkish management reviews, ship gates to prevent regressions, and end-to-end measurements of critical user journeys. Sandy Foundations # It was, of course, b t. Astonishingly, gobsmackingly effective b t, but nonsense nonetheless.

Social Media 119

Social Media Website Technology Technology 119

Smashing Magazine

AUGUST 10, 2023

There are ways around that, of course. In contrast, tools like DebugBear and WebPageTest use more realistic throttling that accurately reflects network round trips on a higher-latency connection. Real usage data would be better, of course. That’s the “thing” I’ve been missing in my performance efforts.

Speed 81

Speed Monitoring Testing Network 81

The Morning Paper

NOVEMBER 10, 2019

Here are the bombshell paragraphs: Our datacenter applications seek ever more CPU-efficient and lower-latency communication, which Pony Express delivers. The desire for CPU efficiency and lower latencies is easy to understand. Upgrades are also rolled out progressively across the cluster of course. Emphasis mine).

Network 92

Network Transportation Latency Entertainment 92

Percona

JULY 20, 2023

Of course, there are “ClientWrite” events, which is the wait event related to writing the data to the client (pg_dump) in this case. Following wait events are captured from a really fast/low latency network. If the network is fast, we may see a good amount of CPU utilization and “DataFileRead” as a wait event.

Network 65

Network Performance Latency Servers 65

The Agile Manager

JULY 9, 2010

Instead of producing large returns, of course, investment banking can produce large losses. Of course, these complex properties don't make them "high value added" services. Firms dependent on low latency for competitive edge are not likely to get competitive advantage by hosting their applications in the cloud.

Retail 45

Retail Technology Technology Small Business 45

High Scalability

JULY 20, 2018

A typical example of modern "microservices-inspired" Java application would function along these lines: Netflix : We observed during experimentation that RAM random read latencies were rarely higher than 1 microsecond whereas typical SSD random read speeds are between 100–500 microseconds.

Internet 121

Internet Internet Scalability Automotive 121