DZone

FEBRUARY 21, 2021

CPU consumption in Unix/Linux operating systems are studied using 8 different metrics: User CPU time , System CPU time , nice CPU time , Idle CPU time , Waiting CPU time , Hardware Interrupt CPU time , Software Interrupt CPU time , and Stolen CPU time. In this article, let's study ‘nice CPU time’. What Is ‘nice’ CPU Time?

Operating System 133

Operating System Hardware Metrics Systems 133

Dynatrace

DECEMBER 15, 2020

Upcoming Operating systems support changes. The following operating systems will no longer be supported starting 01 February 2021. The following operating systems will no longer be supported starting 01 May 2021. The following operating systems will no longer be supported starting 01 June 2021.

Operating System 108

Operating System Java Mobile Cache 108

Official Blog - World Web Technology

AUGUST 27, 2023

Various techniques, such as caching and optimization, improve the website’s performance and speed. Furthermore, opcode caching allows developers to speed up PHP code execution. Whether Linux, Windows, or macOS, PHP offers a seamless experience on all operating systems.

Development 98

Development Ecommerce Open Source Website 98

HammerDB

APRIL 19, 2023

Let’s look at how the workloads behave when running on an identical system We ran both sysbench and HammerDB on a system with: Processors: Two Intel Xeon 8360Y processor sockets (36 Core/72 Threads per socket). Operating System: Ubuntu 22.04 TB)) for storage of database tablespaces and logging. Database: MySQL 8.0.31

Benchmarking 54

Benchmarking Performance Cache Storage 54

SQL Server According to Bob

NOVEMBER 8, 2016

Note: We received feedback that there was some confusion on us calling this functionality “tail of the log caching” because our documentation and prior history has referred to the tail of the log as the portion of the hardened log that has not been backed up. Tail Of Log Caching.

Cache 40

Cache Servers Media Storage 40

Percona

NOVEMBER 7, 2023

This book has five major sections on MVCC and Isolation (108 pages), Buffer Cache and WAL (53 pages), Locks (42 pages), Query Execution (154 pages), and the types of indexes (127 pages). Now, this operation blocks all reads and writes during the operation.

Cache 92

Cache Servers Operating System Availability 92

Percona

MAY 1, 2023

Connection pooling: Minimizing connection overhead and improving response times for frequently accessed data by implementing mechanisms for connection pooling and caching strategies. The PostgreSQL buffer is called shared_buffer, which is the most effective tunable parameter for most operating systems.

Tuning 52

Tuning Database Efficiency Performance 52

All Things Distributed

DECEMBER 18, 2012

Jul 4 - Leases: An efficient fault-tolerant mechanism for distributed file cache consistency , Gray, Cary, and David Cheriton, Vol. Jul 6 - End-To-End Arguments in System Design , by J. Clark, ACM Transactions on Computer Systems 2(4):277-288, November 1984. Saltzer, D. Reed, and D. 33-48, October 1983, Bretton Woods, NH, USA.

Operating System 144

Operating System Cache AWS Scalability 144

Randon ASCII

SEPTEMBER 8, 2019

The fact that this shows up as CPU time suggests that the reads were all hitting in the system cache and the CPU time was the kernel overhead (note ntoskrnl.exe on the first sampled call stack) of grabbing data from the cache. Remember that these are calls to the operating system – kernel calls.

Latency 79

Latency Cache Programming Operating System 79

Smashing Magazine

MAY 25, 2021

It’s also trickier to handle cached fonts we already have, not to mention differences in various fallback styles. Now different operating systems may have slightly different font settings and getting these exactly right is basically an impossible task, but that’s not the aim. That would certainly help increase adoption.

Operating System 143

Operating System Google Website Cache 143

Percona

AUGUST 31, 2018

The PostgreSQL buffer is called shared_buffer which is the most effective tunable parameter for most operating systems. This parameter sets how much dedicated memory will be used by PostgreSQL for cache. It’s low because certain machines and operating systems do not support higher values. wal_buffers.

Tuning 58

Tuning Database Performance Benchmarking 58

Official Blog - World Web Technology

NOVEMBER 9, 2023

Furthermore, PHP includes caching and opcode optimization tools that make things run even faster. Can PHP run on different platforms and operating systems? Yes, PHP is platform-agnostic, allowing it to run on various platforms and operating systems, providing flexibility for developers.

Website 59

Website Development Open Source Database 59

Dotcom-Montior

JUNE 15, 2020

Operating System Updates and Security Patches. Since the majority of gadgets are produced in China, the government of China has collaborated with the manufacturers of mobile phones, tablets, and laptops to customize operating systems, such as Windows, Android, and IOS, based on the Great Firewall’s internet security guidelines.

Monitoring 52

Monitoring Performance Artificial Intelligence Internet 52

MachMetrics

DECEMBER 14, 2019

It is typically reduced via server-side optimizations, such as enabling caching and database indexes. TTFB measures the time that elapses between when a user requests a site, and when that user’s browser receives the first bit of information. In the analysis, the average TTFB speed was found to be 1.28 seconds on desktop and 2.59

Best Practices 105

Best Practices Speed Mobile Google 105

KeyCDN

JANUARY 23, 2020

A wide range of users with different operating systems, browsers, hardware configurations and other variables provides a wide sample size that helps developers discover as many issues as possible. Teams can measure the performance of all application dependencies, including databases, web services, caching, and more.

Strategy 72

Strategy Metrics Monitoring Servers 72

Scalegrid

DECEMBER 21, 2023

This includes latency, which is a major determinant in evaluating the reliability and performance of your Redis® instance, CPU usage to assess how much time it spends on tasks, operations such as reading/writing data from disk or network I/O, and memory utilization (also known as memory metrics).

Strategy 130

Strategy Monitoring Latency DevOps 130

The Morning Paper

NOVEMBER 19, 2019

On the other hand we have good old-fashioned native apps that you install on your operating system (a dying breed? You can take incremental steps towards a local-first future by following these guidelines: Use aggressive caching to improve responsiveness. Google Docs, Trello, …). See e.g. Brendan Burns’ recent tweet ).

Cloud 83

Cloud Software Software Internet 83

Percona

JUNE 4, 2023

It supports multiple operating systems and platforms, making it an ideal choice for various applications. Cross-platform compatibility makes MySQL compatible with various operating systems, including Linux, Windows, macOS, and more. What is MySQL? MariaDB Server includes many storage engines beyond the default InnoDB.

Open Source 52

Open Source Servers Storage Scalability 52

Percona

APRIL 24, 2023

The more indexes, the more the requirement of memory for effective caching. If we don’t increase the available memory, this starts hurting the entire performance of the system. Indexes need more cache than tables Due to random writes and reads, indexes need more pages to be in the cache.

Tuning 129

Tuning Cache Storage Database 129

Smashing Magazine

JANUARY 15, 2019

For the more adventurous/technical, the top (table of processes) command provides similar metrics on most Unix-like operating systems such as macOS and Ubuntu. I predominantly use Nginx, and I have a particular fondness for FastCGI cache and have found it to be especially efficient. We should use HTTP2 over HTTPS.

Website Performance 73

Website Performance Website Energy Performance 73

Percona

MARCH 23, 2023

By caching hot datasets, indexes, and ongoing changes, InnoDB can provide faster response times and utilize disk IO in a much more optimal way. Operating system Linux is the most common operating system for high-performance MySQL servers. A recommended value is two times the number of CPUs plus the number of disks.

Performance 128

Performance Hardware Storage Tuning 128

The Netflix TechBlog

SEPTEMBER 24, 2021

The requirements and challenges for supporting write operations are different from those for read operations. Our previous blog post described how MezzFS addresses the challenges for reads using various techniques, such as adaptive buffering and regional caches, to make the system performant and to lower costs.

Cloud 237

Cloud Media Storage Cache 237

The Netflix TechBlog

MARCH 8, 2021

Instead, we created a service to take the most popular configurations and cache them. We needed a system that could manage hundreds to one-day thousands of workstations. We use Salt to make operating system agnostic declarative statements about how to configure a workstation. That is where SaltStack comes in.

Entertainment 306

Entertainment Storage Hardware Java 306

ScaleOut Software

MAY 15, 2014

Given all this, we thought it would be a good opportunity to see how we are doing relative to the competition, and in particular, relative to Microsoft’s AppFabric caching for Windows on-premise servers. One or more specified cache servers are unavailable, which could be caused by busy network or servers. …). Please retry later.

Cache 40

Cache Servers Network Storage 40

Tim Kadlec

JUNE 2, 2010

Features like local storage and cache manifest’s make it possible to significantly improve the performance of our mobile apps, and in many cases, make them indistinguishable from a native app. The benefit is that we build once, and our content gets to be displayed on a variety of devices - not just one.

Mobile 40

Mobile Cache Operating System Storage 40

HammerDB

JUNE 27, 2022

HammerDB has graphical and command line interfaces for the Windows and Linux operating systems. Cached vs Scaled Workloads. A key difference between cached and scaled workloads is the implementation of keying and thinking time to introduce a pause of time between transactions. Why HammerDB was developed.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Scalegrid

FEBRUARY 8, 2024

Handling a storage system spread across multiple physical servers introduces complexities such as unpredictability in behavior, difficulties with testing procedures, and an overall increase in administrative complexity due to the dispersed nature of data.

Storage 130

Storage Systems Big Data Azure 130

SQL Server According to Bob

DECEMBER 18, 2018

Device level flushing may have an impact on your I/O caching, read ahead or other behaviors of the storage system. The “forced flush” changes in SQL Server avoid flushes, when possible, in order to improve performance on non-optimized Fua file systems. Linux open command flag used to bypass file system cache.

Servers 90

Servers Media Cache Storage 90

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

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. The beauty of persistent memory is that we can use memory layouts for persistent data (with some considerations for volatile caches etc.

Hardware 56

Hardware Media Programming Operating System 56

SQL Performance

MARCH 30, 2021

Running a parallel plan on a single thread can also happen when a cached parallel plan is reused by a session that is limited to DOP 1 by an environmental setting (e.g. See Myth: SQL Server Caches a Serial Plan with every Parallel Plan for details. Creating cached expression values ( runtime constants ). Query scan setup.

Cache 98

Cache Servers Operating System Processing 98

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

SQL Server According to Bob

JANUARY 11, 2020

Stable media is commonly physical disk storage, but other devices and certain caching facilities qualify as well. Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. This cache is often supported by a battery-powered backup facility.

Servers 40

Servers Cache Media Hardware 40

Smashing Magazine

JUNE 20, 2019

Without Google Fonts you would be limited to the handful of “ system fonts ” installed on your user’s device. System fonts or ‘Web Safe Fonts’ are the fonts most commonly pre-installed across operating systems. Browser Caching. Another built-in optimization of Google Fonts is browser caching.

Google 111

Google Performance Cache Website 111

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. This data is more reliable since it doesn’t depend on an incomplete simulation of Chrome internals and the network stack.

Speed 97

Speed Google Website Metrics 97

SQL Server According to Bob

JANUARY 11, 2020

Time of Last Access The time of last access is a caching ​​ algorithm ​​ that enables ​​ cache ​​ entries to be ordered by their ​​ access times.

Servers 40

Servers Cache Database Media 40

SQL Server According to Bob

MAY 19, 2019

The lock manager has partitions, lock block cache and other structures. Reduce the number of partitions and size of the cache. IO Request Caches. SQLPAL may cache I/O request structures with each thread. Remove the background task and aggressively reclaim database space during query execution. Lock Manager. Demand Paging.

IoT 61

IoT Servers Development Cache 61