Nick Desaulniers

JULY 23, 2015

21st Century C by Ben Klemens. There are a few other useful tools that came to mind that I’ve used when working with C and C++ codebases. C & C++ codebases; running these tools on the code or adding them to the codebases. with lots of C++ code have documents. was a great read. Code Formatters.

C++ 75

C++ Programming Open Source Code 75

Percona

MARCH 28, 2023

Every database system has to ensure durability and reliability. Journal It’s a process where every write operation gets written (appended) from Memory to a Journal file, AKA transaction log that exists on disk at a specific interval configured using “ journalCommitIntervalMs.” wt list -c WiredTigerCheckpoint.33:

Hardware 88

Hardware C++ Storage Cache 88

HammerDB

JUNE 27, 2022

HammerDB has graphical and command line interfaces for the Windows and Linux operating systems. The Transaction Processing Performance Council (TPC) was founded to bring standards to database benchmarking, and the history of the TPC can be found here. Why HammerDB was developed. HammerDB Licensing.

Benchmarking 62

Benchmarking Open Source C++ Cache 62

Smashing Magazine

JULY 8, 2021

Development Process. Development Process. In his upcoming online workshop The TypeScript Masterclass , Stefan Baumgartner will dive into type systems and how to use them well when writing JavaScript. Tools And Practices To Speed Up The Vue.js Tools And Practices To Speed Up The Vue.js Uma Victor. 2021-07-08T11:00:00+00:00.

Speed 133

Speed Processing Development Code 133

Percona

OCTOBER 2, 2023

Percona Toolkit is a collection of advanced open source command-line tools, developed and used by the Percona technical staff, that are engineered to perform a variety of MySQL, MariaDB, MongoDB, and PostgreSQL server and system tasks that are too difficult or complex to perform manually. Caches | 12.4G Caches | 12.4G

Cache 99

Cache Database Virtualization Servers 99

CSS Wizardry

SEPTEMBER 28, 2023

There’s some subtle complexity designed to prevent people gaming the system, which is exactly what we’re trying to do. Again, to stop people gaming the system, Chrome decided that only images of a certain quality (or entropy ) will be considered as your LCP element. And it doesn’t necessarily spell bad news for our LQIP either.

Games 275

Games Ecommerce Cache Systems 275

Sutter's Mill

FEBRUARY 13, 2017

I don’t get to Europe very often apart from ISO C++ standards meetings, but this spring I’ve been able to accept invitations for two English-language European events in the last week of April. Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). Description.

Latency 51

Latency C++ Hardware Performance 51

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

ACM Sigarch

MARCH 18, 2019

Computer systems, from the Internet-of-Things devices to datacenters, are complex and optimizing them can enhance capability and save money. Developing simulators, however, is time-consuming and requires a great deal of infrastructure development regarding a prospective system. Answered in Part 2.). Lazowska, et al.

Systems 60

Systems Latency Performance Analytics 60

Official Blog - World Web Technology

AUGUST 27, 2023

Unlike other popular programming languages such as C or Pearl, PHP pages have HTML with embedded code with some start and end processing instructions that allow you to jump directly into and out of PHP mode. Various techniques, such as caching and optimization, improve the website’s performance and speed.

Development 98

Development Ecommerce Open Source Website 98

Percona

MAY 1, 2023

It is primarily the responsibility of the database administrator or developer to tune PostgreSQL according to their system’s workload. Connection pooling: Minimizing connection overhead and improving response times for frequently accessed data by implementing mechanisms for connection pooling and caching strategies.

Tuning 52

Tuning Efficiency Database Performance 52

Percona

SEPTEMBER 28, 2023

Whenever you install your favorite MySQL server on a freshly created Ubuntu instance, you start by updating the configuration for MySQL, such as configuring buffer pool, changing the default datadir director, and disabling one of the most outstanding features – query cache. It’s a nice thing to do, but first things first.

Servers 113

Servers Best Practices Database Open Source 113

The Morning Paper

MAY 12, 2019

An open-source benchmark suite for microservices and their hardware-software implications for cloud & edge systems Gan et al., Systems built with lots of microservices have different operational characteristics to those built from a small number of monoliths, we’d like to study and better understand those differences.

Open Source 61

Open Source Hardware Benchmarking Systems 61

HammerDB

APRIL 19, 2023

Therefore, before we attempt to measure our database performance, we should know the system or cloud instance to be tested in detail. sysbench is a widely used open-source benchmarking tool that is designed to evaluate the performance of CPU, memory, disk I/O, and database systems. Operating System: Ubuntu 22.04 4.22 %usr 38.40

Performance 54

Performance Benchmarking Cache Storage 54

Adrian Cockcroft

JANUARY 29, 2023

There is no way to model how much more traffic you can send to that system before it exceeds it’s SLA. This is unfortunate, because we’d really like to be able to build systems that have an SLA that we can share with the consumers of our interfaces, and be able to measure how well we are doing.

Lambda 98

Lambda Latency Cache C++ 98

The Morning Paper

NOVEMBER 5, 2019

File systems unfit as distributed storage backends: lessons from 10 years of Ceph evolution Aghayev et al., In this case, the assumption that a distributed storage backend should clearly be layered on top of a local file system. A distributed file system provides a unified view over aggregated storage from multiple physical machines.

Storage 64

Storage Systems Hardware Efficiency 64

Brendan Gregg

AUGUST 29, 2021

Problem Statement The microservice managed and processed large files, including encrypting them and then storing them on S3. 1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03 avg-cpu: %user %nice %system %iowait %steal %idle 14.81 Hit Ctrl-C to end. ^C

Cache 40

Cache C++ AWS Systems 40

Percona

JUNE 15, 2023

Processing triggers for man-db (2.9.4-2) For more information, please visit: [link] Processing triggers for man-db (2.9.4-2). Refresh the local cache to update the package information $ sudo apt update Hit:1 [link] bullseye-security InRelease Hit:2 [link] bullseye InRelease 1.5 Processing triggers for man-db (2.9.4-2).

Servers 84

Servers C++ Database Systems 84

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 May 2021. Linux: Ubuntu 19.10.

Operating System 110

Operating System Java Mobile Cache 110

Smashing Magazine

JULY 6, 2021

This data would be collated and authored in a Web Content Management System (WCMS) by a content editor. Moving to a headless CMS is not an easy decision and the selection process should not be taken lightly. But when workflows, audit trails and approvals are necessary, the process needs to be managed within your headless CMS.

Cache 143

Cache Website Mobile Google 143

The Netflix TechBlog

JULY 1, 2019

In a previous post , we described how our TV application consists of a C++ SDK installed natively on the device, an updatable JavaScript user interface (UI) layer, and a custom rendering layer known as Gibbon. Our UI runs on top of a custom rendering engine which uses what we call a “surface cache” to optimize our use of graphics memory.

Cache 166

Cache Design Testing Development 166

ACM Sigarch

MARCH 25, 2019

The M/M/1 queue will show us a required trade-off among (a) allowing unscheduled task arrivals, (b) minimizing latency, and (c) maximizing throughput. The M/M/1 queue also assumes that the arrival rate is not affected by the unbounded number of tasks in the queue (called an “open system”). 50ms), but this is actually necessary.

Systems 53

Systems Latency Performance C++ 53

Brendan Gregg

JULY 2, 2021

This is also applicable for people adding it to their own in-house monitoring systems. E.g., to see process execution with timestamps using execsnoop(8): # execsnoop-bpfcc -T. You likely already have agents running on all your customer systems. Low frequency events such as process execution should be negligible to capture.

Latency 145

Latency Cache Energy Systems 145

HammerDB

JULY 5, 2022

So instead we are going to take a cut down version of the HammerDB TPROC-C driver script and do the same in Python and use the HammerDB infrastructure to measure performance. puts "Processing $total_iterations transactions without output suppressed." puts "Processing $total_iterations transactions without output suppressed."

Benchmarking 98

Benchmarking Database C++ Virtualization 98

Brendan Gregg

AUGUST 18, 2019

C @ns: [256, 512) 10900 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | [512, 1k) 18291 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@| [1k, 2k) 4998 |@@@@@@@@@@@@@@ | [2k, 4k) 57 | | [4k, 8k) 117 | | [8k, 16k) 48 | | [16k, 32k) 109 | | [32k, 64k) 3 | |. pid process ID. comm Process or command name. pid process ID. system(".")

Latency 68

Latency C++ Cache Programming 68

The Morning Paper

SEPTEMBER 10, 2019

Anchored in the primary use case of supporting Google’s YouTube business, what we’re looking at here could well be the future of data processing at Google. Google already has Dremel , Mesa , Photon , F1 , PowerDrill , and Spanner , so why did they need yet another data processing system? Procella system overview.

Analytics 75

Analytics Latency Cache Google 75

The Morning Paper

AUGUST 29, 2019

We focused on OLAP-oriented parallel data warehouse products available for AWS and restricted our attention to commercially available systems. As it is infeasible to test every OLAP system runnable on AWS, we chose widely-used systems that represented a variety of architectures and cost models. System initialisation time.

Architecture 76

Architecture Cloud Storage Serverless 76

Highly Scalable

SEPTEMBER 18, 2012

As such, it encompasses distributed system coordination, failover, resource management and many other capabilities. These developments gradually highlight a system of relevant database building blocks with proven practical efficiency. System Coordination. Scalability is one of the main drivers of the NoSQL movement.

Database 213

Database Latency C++ Scalability 213

Percona

AUGUST 31, 2018

If queries perform full table scans where an index could be used or perform heavy joins or expensive aggregate operations, then the system can still perform poorly even if the database parameters are tuned. The PostgreSQL buffer is called shared_buffer which is the most effective tunable parameter for most operating systems.

Tuning 56

Tuning Database Performance Benchmarking 56

SQL Server According to Bob

MAY 19, 2019

Partitioning allows SQL Server to scale to the largest systems with record-setting performance. When promoted to a super-latch on a 64 CPU system the memory requirement becomes 32 + (32 *64) = 2080 bytes. However, on smaller systems and VMs the partitioning may not be required to maintain performance. IO Request Caches.

IoT 61

IoT Servers Development Cache 61

Percona

JUNE 4, 2023

Introduction: MariaDB vs. MySQL The goal of this blog post is to evaluate, at a higher level, MariaDB vs. MySQL vs. Percona Server for MySQL side-by-side to better inform the decision making process. It is largely an unofficial response to published comments from the MariaDB Corporation. What is MariaDB?

Open Source 52

Open Source Servers Storage Scalability 52

Brendan Gregg

JANUARY 17, 2018

Short durations can be useful for understanding how well a WSS will fit into the CPU caches (L1/L2/L3, TLB L1/L2, etc). In this case, 28 Mbytes is a little larger than the LLC for this CPU, so may not cache so well (in a single LLC, anyway, and based on this single measurement). wss.pl -C `pgrep -n mysqld` 1. 102.36. [.].

Cache 71

Cache Latency C++ Programming 71

Smashing Magazine

JANUARY 11, 2021

Build Optimizations JavaScript modules, module/nomodule pattern, tree-shaking, code-splitting, scope-hoisting, Webpack, differential serving, web worker, WebAssembly, JavaScript bundles, React, SPA, partial hydration, import on interaction, 3rd-parties, cache. In fact, choosing the right metric is a process without obvious winners.

Performance 145

Performance Cache Media Metrics 145

The Morning Paper

JUNE 20, 2019

Most Azure code is written in.Net managed languages such as C#, reducing memory leak bugs. TLA+ is used to model concurrent and distributed system protocols helping to eliminate high level design and semantic bugs. All but one of the data format bugs involved multiple processes or nodes. Does that match your experience?

Cloud 81

Cloud Azure Cache C++ 81

The Netflix TechBlog

OCTOBER 18, 2019

The key insight was that by assuming a latent Gaussian Process (GP) prior on the key business metric actions like viral engagement, job applications, etc., In particular, he talked about the misattribution potential in a complex microservice architecture where often intermediary results are cached.

Infrastructure 126

Infrastructure Metrics Architecture Efficiency 126

High Scalability

NOVEMBER 25, 2019

He and his colleagues spend their productive hours scaling large distributed file systems. Your Laptop has a filesystem used by hundreds of processes. It is limited by the disk space; it can’t expand storage elastically; it chokes if you run few I/O intensive processes or try collaborating with 100 other users.

Architecture 52

Architecture Cache Azure Storage 52

SQL Performance

SEPTEMBER 25, 2019

The general idea is to cache and replay results, saving repeated executions of inner-side operators wherever possible. When a spool is able to replay cached results, this is known as a rewind. You may find it helpful to think of a spool rebind as a cache miss, and a rewind as a cache hit. Lazy Table Spool.

Performance 104

Performance Cache Servers Education 104