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 leads us to the process page of our specific Apache instance. On the other hand, if we checked out the process page for our Node.js

Metrics 166

Metrics Monitoring Database Network 166

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. Scylla Repair is a synchronization process that runs in the background to ensure all replicas eventually hold the same data.

Big Data 187

Big Data Database Open Source Azure 187

The Netflix TechBlog

SEPTEMBER 8, 2020

Over the course of this post, we will talk about our approach to this migration, the strategies that we employed, and the tools we built to support this. Being able to canary a new route let us verify latency and error rates were within acceptable limits. Background The Netflix Android app uses the falcor data model and query protocol.

Latency 233

Latency Cache Java Traffic 233

Scalegrid

JULY 29, 2020

It uses only one process which makes it very lightweight. If we require N parallel connections, this forks N child processes. By default, there are 32 child processes that are forked. Pgpool-II defines one process per child process. We cannot control which child process a client connects to. Not supported.

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

Scalegrid

FEBRUARY 8, 2024

This process effectively duplicates essential parts of information to safeguard against potential loss. Durability Availability Fault tolerance These combined outcomes help minimize latency experienced by clients spread across different geographical regions.

Storage 130

Storage Systems Big Data Azure 130

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 current system assumes an application specific regression model is available on the servers which can predict processing time given the current parameters of the job (e.g. for the wasm-version.

Mobile 104

Mobile Cloud Latency Games 104

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 62

Network Performance Latency Servers 62

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. " Running end-user compute inside the datastore is not without its challenges of course.

Serverless 99

Serverless Storage Latency Cloud 99

The Morning Paper

OCTOBER 26, 2020

Helios also serves as a reference architecture for how Microsoft envisions its next generation of distributed big-data processing systems being built. We push as much data processing as possible onto warehouse-scale computers and systems software. It’s limited by the laws of physics in terms of end-to-end latency.

Cloud 104

Cloud Big Data Latency Architecture 104

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

IO River

NOVEMBER 2, 2023

A CDN (Content Delivery Network) is a network of geographically distributed servers that brings web content closer to where end users are located, to ensure high availability, optimized performance and low latency. It is also recommended to have experienced professionals accompany you throughout the process.

Best Practices 52

Best Practices Strategy Traffic Virtualization 52

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

Dynatrace

MARCH 17, 2021

OneAgent gives you all the operational and business performance metrics you need, from the front end to the back end and everything in between—cloud instances, hosts, network health, processes, and services. You want to optimize your Citrix landscape with insights into user load and screen latency per server? Dynatrace Extensions 2.0

Metrics 164

Metrics Monitoring Network Technology 164

The Morning Paper

OCTOBER 6, 2019

Prediction serving latency matters. The Problem Construction Process takes as input a business case or concept and outputs a well-defined modeling problem (usually a supervised machine learning problem), such that a good solution effectively models the given business case or concept. Lesson 4: prediction serving latency matters.

Latency 102

Latency Metrics Cache Design 102

The Morning Paper

NOVEMBER 15, 2020

Options 1 and 2 are of course the ‘scale out’ options, whereas option 3 is ‘scale up’. So before matching, the IDS/IPS has to reconstruct a TCP bytestream in the face of packet fragmentation, loss, and out-of-order delivery – a process known as reassembly. This makes the whole system latency sensitive.

Servers 128

Servers Hardware Latency Design 128

IO River

NOVEMBER 2, 2023

A CDN (Content Delivery Network) is a network of geographically distributed servers that brings web content closer to where end users are located, to ensure high availability, optimized performance and low latency. It is also recommended to have experienced professionals accompany you throughout the process.

Best Practices 40

Best Practices Strategy Traffic Virtualization 40

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

The Morning Paper

JUNE 23, 2019

Factor VI in the 12-factor app manifesto , “Execute the app as one or more stateless processes,” to be dropped and replaced with “Execute the app as one or more stateful processes.” session state that you want to survive an application process crash), and to keep the application server/services layer stateless.

Cache 79

Cache Latency Google Lambda 79

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. Each have their own time, place, purpose, focus, and audience. Who: Engineers.

Performance Testing 172

Performance Testing Testing Performance Strategy 172

The Morning Paper

MAY 12, 2019

The paper examines the implications of microservices at the hardware, OS and networking stack, cluster management, and application framework levels, as well as the impact of tail latency. The top line shows the change in tail latency across a set of monolithic applications as operating frequency decreases. Hardware implications.

Open Source 61

Open Source Hardware Benchmarking Systems 61

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Consistent performance matters just as much as low average latency.

Performance 86

Performance Latency Metrics Engineering 86

Dotcom-Montior

DECEMBER 8, 2021

We are kidding of course, but you know something is bad if happens that early in the morning. Now that we have talked about what an incident is, incident management is the process by which teams resolve these events and bring systems and services back to normal operation. Incident Management Lifecyle: Process and Steps.

Social Media 90

Social Media Monitoring Latency DevOps 90

Dynatrace

JUNE 25, 2021

Already in the 2000s, service-oriented architectures (SOA) became popular, and operations teams discovered the need to understand how transactions traverse through all tiers and how these tiers contributed to the execution time and latency. Of course, Dynatrace supports W3C Trace Context as well.

Open Source 195

Open Source Monitoring Google Systems 195

Dotcom-Montior

MAY 12, 2020

They now allow users to interact more with the company in the form of online forms, shopping carts, Content Management Systems (CMS), online courses, etc. A request will be sent from the client-side and an HTTP check waits on the server port to get the message, process it, and then send back the response. Network latency.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

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 82

Speed Monitoring Testing Network 82

Percona

MARCH 23, 2023

These guidelines work well for a wide range of applications, though the optimal settings, of course, depend on the workload. As datasets continue to grow in size, the amount of RAM required to store and process these datasets also increases. But also larger log files mean that the recovery process will be slower in case of a crash.

Performance 124

Performance Hardware Tuning Storage 124

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. This allows the browser’s preload scanner to detect and download the image early in the process — something it cannot parse from a CSS file.

Media 74

Media Metrics Mobile Best Practices 74

Highly Scalable

SEPTEMBER 18, 2012

Although it can hardly be said that NoSQL movement brought fundamentally new techniques into distributed data processing, it triggered an avalanche of practical studies and real-life trials of different combinations of protocols and algorithms. Read/Write latency. Read/Write requests are processes with a minimal latency.

Database 213

Database Latency C++ Scalability 213

Alex Russell

MARCH 6, 2021

Advances in browser content processing. Not as much as we'd like, of course, but the worldwide baseline has changed enormously. There are differences, of course, but not where it counts. Instead, experience teaches that it's the process of taking care to attend to those least-well-off that changes outcomes.

Performance 124

Performance Network Cache Metrics 124

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

The Morning Paper

FEBRUARY 23, 2020

AnyLog differs from the traditional WWW in the way that it provides incentives and financial reward for performance tasks that are critical to the well-being of the system as a whole, including contribution, integration, storing, and processing of data, as well as protecting the confidentiality, integrity, and availability of that data.

Blockchain 94

Blockchain Internet Internet IoT 94

The Morning Paper

MARCH 3, 2020

It takes you through the thinking processes and engineering practices behind the design of a key part of the control plane for AWS Elastic Block Storage (EBS): the Physalia database that stores configuration information. This work is latency critical, because volume IO is blocked until it is complete. NSDI’20.

Database 106

Database AWS Network Design 106

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. Under the covers they use versioned states and explicit merging operations, and they guide this process through invertible relational specifications.

Strategy 104

Strategy Latency Systems Processing 104

Alex Russell

JANUARY 30, 2024

Put another way, the performance gap between what devices the wealthy carry and what budget shoppers carry grew more this year (252 points) than the year-over-year gains from process and architecture at the volume price point (174 points). GHz Cortex-A53) on a 10nm process : Geekbench 6 scores for the Galaxy A51 versus today's leading device.

Performance 90

Performance Network Mobile Speed 90

O'Reilly

JANUARY 16, 2024

Whenever I paused for too long, ChatGPT would interpret what I said so far as my request and start processing it. 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.

Entertainment 76

Entertainment Internet Internet Design 76

Percona

MAY 15, 2023

In both cases, when using virtually-synchronous replication, the process will require certification from each node and local (by node) write; as such, the number of writes is NOT distributed across multiple nodes but duplicated. Of course, we are still talking about a low number of rows and running threads but the gain is there.

Traffic 122

Traffic Scalability Database Servers 122

The Morning Paper

JANUARY 23, 2020

1:18pm a key observation was made that an API call to populate the homepage sidebar saw a huge jump in latency. A technique called process tracing was employed to try and recover "a record of participant data acquisition, situation assessment, knowledge activation, expectations, intentions, and actions as the case unfolds over time."

Internet 53

Internet Internet Cache Engineering 53