Dynatrace

JANUARY 14, 2022

The optimization goal was to improve the application efficiency, that is to improve the ratio between service throughput and cloud costs while not increasing the application latency (e.g. JVM, databases, middleware, operating system, cloud instances, etc) by also taking advantage of Dynatrace full-stack observability.

Latency 200

Latency Tuning Efficiency AWS 200

Randon ASCII

SEPTEMBER 8, 2019

Remember that these are calls to the operating system – kernel calls. With a bit of column rearranging we get this impressive result: What this says is that, over the course of two right-mouse clicks, RuntimeBroker.exe , thread 10,252, issued 229,604 ReadFile calls, reading a total of 15,686,586 bytes. Think about that for a moment.

Latency 79

Latency Cache Programming Operating System 79

Dynatrace

SEPTEMBER 23, 2020

Operating Systems are not always set up in the same way. Storage mount points in a system might be larger or smaller, local or remote, with high or low latency, and various speeds. Another consequence of the recent discontinuation of support for 32-bit operating systems is the new default location of OneAgent for Windows.

Latency 146

Latency Storage Operating System Network 146

Dynatrace

JANUARY 26, 2021

Traditional computing models rely on virtual or physical machines, where each instance includes a complete operating system, CPU cycles, and memory. There is no need to plan for extra resources, update operating systems, or install frameworks. The provider is essentially your system administrator.

Serverless 242

Serverless Efficiency Lambda Azure 242

Dynatrace

MAY 19, 2022

Lastly, error budgets, as the difference between a current state and the target, represent the maximum amount of time a system can fail per the contractual agreement without repercussions. Organizations have multiple stakeholders and almost always have different teams that set up monitoring, operate systems, and develop new functionality.

Automotive 267

Automotive Latency Architecture Azure 267

Dynatrace

JUNE 25, 2020

This means that Dynatrace continues full operation when a majority of nodes are up and a maximum of two nodes are down at a time. The network latency between cluster nodes should be around 10 ms or less. Additionally, a Linux operating system with support for cgroups and systemd (for example, RHEL/CentOS 7+), is required.

Availability 244

Availability Hardware Latency Traffic 244

The Netflix TechBlog

JUNE 4, 2019

Because microprocessors are so fast, computer architecture design has evolved towards adding various levels of caching between compute units and the main memory, in order to hide the latency of bringing the bits to the brains. This avoids thrashing caches too much for B and evens out the pressure on the L3 caches of the machine.

Cache 251

Cache Latency Logistics Airlines 251

Dynatrace

APRIL 5, 2021

As a bonus, operations staff never needs to update operating systems or hardware, because AWS manages servers with no stoppage of application functionality. AWS continues to improve how it handles latency issues. One factor that dissuades many from using Lambda is the need to restart containers.

Lambda 177

Lambda AWS Serverless Hardware 177

John McCalpin

APRIL 25, 2023

This metric is interesting because we don’t always have the luxury of parallelizing every application we run, and our operating systems almost always process each call (e.g., This post is about a secondary performance characteristic — sustained memory bandwidth for a single thread running on a single core.

Benchmarking 97

Benchmarking Cache Latency Tuning 97

Dynatrace

SEPTEMBER 16, 2022

For example, teams can further segment the telemetry data captured from a mobile app based on operating system, device, region, app version, and other custom metrics, to provide more granular insights on users and their behavior. When it comes to mobile app development, it’s vital that owners get the full picture.

Mobile 216

Mobile Metrics Monitoring Latency 216

Dynatrace

MAY 17, 2023

We’d like to get deeper insight into the host, the underlying operating system, and any third-party services used by our application. Tracking CPU usage helps identify performance bottlenecks, optimize resource utilization, plan for scalability, detect performance degradation, and monitor overall system health.

Metrics 168

Metrics Monitoring Database Network 168

Adrian Cockcroft

JANUARY 20, 2023

To me this positions Fugaku as the first of a new mainstream, rather than a special purpose system. I have always been particularly interested in the interconnects and protocols used to create clusters, and the latency and bandwidth of the various offerings that are available.

Architecture 52

Architecture Latency Benchmarking AWS 52

Percona

MARCH 23, 2023

Nowadays, solid-state drives (SSDs) or non-volatile memory express (NVMe) drives are preferred over traditional hard disk drives (HDDs) for database servers due to their faster read and write speeds, lower latency, and improved reliability. Operating system Linux is the most common operating system for high-performance MySQL servers.

Performance 129

Performance Hardware Storage Tuning 129

Dynatrace

APRIL 26, 2022

STM generates traffic that replicates the typical path or behavior of a user on a network to measure performance for example, response times, availability, packet loss, latency, jitter, and other variables). One use case for STM is to model the behavior of a customer in the form of a flow of transactions along the buyer’s journey.

Monitoring 199

Monitoring Social Media IoT Metrics 199

Scalegrid

JANUARY 12, 2024

Such solutions also incorporate features like disaster recovery and built-in safeguards that ensure data integrity across diverse operating systems. Utilizing cloud platforms is especially useful in areas like machine learning and artificial intelligence research.

Cloud 130

Cloud Storage Virtualization Efficiency 130

Testsigma

DECEMBER 12, 2020

Let alone browsers, the website may get into trouble for different resolutions, different operating systems and different browser versions too!! Cross-browser testing deals with all those things by running the websites on different browsers, their versions, operating systems and on different resolutions.

Testing 53

Testing Operating System Website Latency 53

All Things Distributed

OCTOBER 25, 2013

In the back to basics readings this week I am re-reading a paper from 1995 about the work that I did together with Thorsten on solving the problem of end-to-end low-latency communication on high-speed networks. The lack of low-latency made that distributed systems (e.g.

Network 99

Network Latency Operating System Speed 99

Scalegrid

FEBRUARY 8, 2024

By implementing data replication strategies, distributed storage systems achieve greater. 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

DECEMBER 10, 2019

Drawing inspiration from work on single-address-space (SAS) operating systems a single system-wide mapping is maintained by the OS which all devices use for accessing memory. It’s the job of the operating system to manage the global and logical object space abstractions. A prototype implementation.

Hardware 52

Hardware Virtualization Operating System Programming 52

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

Testsigma

JULY 23, 2020

This is a standalone software program which doesn’t depend on any internet connectivity for its working and its performance is not impacted because of any network related latencies. Any network-related latencies result in performance hindrances in these types of applications.

Testing 63

Testing Internet Internet Latency 63

John McCalpin

APRIL 2, 2020

All of the SPECfp_rate2000 results were downloaded from www.spec.org, the results were sorted by processor type, and “peak floating-point operations per cycle” was manually added for each processor type. This includes all architectures, all compilers, all operating systems, and all system configurations.

Benchmarking 59

Benchmarking Performance Latency Architecture 59

Adrian Cockcroft

APRIL 5, 2023

This proposal seeks to define a standard for real-time carbon and energy data as time-series data that would be accessed alongside and synchronized with the existing throughput, utilization and latency metrics that are provided for the components and applications in computing environments.

Energy 52

Energy Metrics Cloud Operating System 52

Smashing Magazine

OCTOBER 31, 2023

If throttling is applied at the operating system level , then the metrics match what a real user with those network conditions would experience. INP is a measure of the latency for all interactions on a given page, where the highest latency — or close to it — informs the final score.

Speed 97

Speed Google Website Metrics 97

ScaleOut Software

APRIL 6, 2021

This simplifies the installation process and ensures portability across operating systems. Because ScaleOut’s in-memory data grid runs in an organization’s data center and avoids the requirement to use a cloud-hosted message hub or REST service, incoming messages from data sources can be processed with minimum latency.

IoT 52

IoT Azure Analytics Healthcare 52

Brendan Gregg

AUGUST 8, 2017

Nowadays, the source code to old operating systems can also be found online. For everyone familiar with other operating systems and their CPU load averages, including this state is at first deeply confusing. **Why?** One system with a ratio of 1.5 Latency was acceptable and no one complained.

Latency 111

Latency Metrics C++ Systems 111

Dotcom-Montior

NOVEMBER 24, 2021

Concurrency refers to the system’s ability to carry out multiple tasks in parallel and manage the access and usage of shared resources. A distributed system comprises of a variety of hardware and software components with different operating systems and technologies, meaning the processors are separate and independent of each other.

Systems 74

Systems Monitoring Hardware Network 74

SQL Performance

FEBRUARY 26, 2020

Organizations are taking advantage of having managed backups, lots of built-in security features, an uptime SLA of 99.99%, and an always up-to-date environment where they are no longer responsible for patching SQL Server or the operating system. One size does not always fit all. Managed Instance provides two tiers for performance.

Azure 63

Azure Performance Storage Latency 63

Percona

APRIL 17, 2023

In this blog post, we will discuss the best practices on the MongoDB ecosystem applied at the Operating System (OS) and MongoDB levels. Operating System (OS) settings Swappiness Swappiness is a Linux kernel setting that influences the behavior of the Virtual Memory manager when it needs to allocate a swap, ranging from 0-100.

Best Practices 52

Best Practices Design Tuning Database 52

Adrian Cockcroft

NOVEMBER 18, 2019

AWS Developer Relations on how the shift from Robot Operating System (ROS) 1 to ROS 2 will change the landscape for all robot lovers. OPN304 Learnings from migrating a service from JDK 8 to JDK 11 AWS Lambda improved latency by migrating to JDK 11 with Amazon Corretto.

Open Source 40

Open Source AWS Lambda Serverless 40

Adrian Cockcroft

NOVEMBER 18, 2019

AWS Developer Relations on how the shift from Robot Operating System (ROS) 1 to ROS 2 will change the landscape for all robot lovers. OPN304 Learnings from migrating a service from JDK 8 to JDK 11 AWS Lambda improved latency by migrating to JDK 11 with Amazon Corretto.

Open Source 40

Open Source AWS Lambda Serverless 40

The Morning Paper

DECEMBER 8, 2019

Byte-addressable non-volatile memory,) NVM will fundamentally change the way hardware interacts, the way operating systems are designed, and the way applications operate on data. This means that the overheads of system calls become much more noticeable. in front of that memory , as we saw last week).

Hardware 56

Hardware Media Programming Operating System 56

The Morning Paper

JUNE 30, 2019

In such a situation I’d expect to see unusually high latencies, but normal throughput). I was only partially right (there is a steady-state queue involved)… Plus, although it’s not described, the performance degradation observed in this case would almost certainly be poor latency and poor throughput. Hence convoys will occur.

Traffic 75

Traffic Latency Programming Scalability 75

HammerDB

MAY 5, 2019

However in the Skylake microarchitecture (you can see a list of CPUs here ) the PAUSE instruction changed and in the documentation it says “the latency of the PAUSE instruction in prior generation microarchitectures is about 10 cycles, whereas in Skylake microarchitecture it has been extended to as many as 140 cycles.”

Testing 48

Testing Tuning Latency Storage 48

All Things Distributed

NOVEMBER 13, 2014

AWS handles all the administration of the underlying compute resources, including server and operating system maintenance, capacity provisioning and automatic scaling, code and security patch deployment, and code monitoring and logging. You can go from code to service in three clicks and then let AWS Lambda take care of the rest.

Lambda 136

Lambda AWS Cloud Scalability 136

The Morning Paper

MAY 21, 2019

This boils down to a single digit µs latency toleration in the tail for far memory, and in addition to security and privacy concerns, rules out remote memory solutions. Thus we’re fundamentally trading (de)-compression latency at access time for the ability to pack more data in memory.

Software 78

Software Software Google Hardware 78

O'Reilly

DECEMBER 2, 2019

I don’t need more bandwidth for video conferences or movies, but I would like to be able to download operating system updates and other large items in seconds rather than minutes. There are impressive estimates for latency for 5G, but reality has a tendency to be harsh on such predictions.

Wireless 53

Wireless Serverless Artificial Intelligence IoT 53