High Scalability

AUGUST 24, 2021

No more hassles of benchmarking and tuning algorithms or building and maintaining infrastructure for vector search. Learn how engineering teams are using products like StackHawk and Snyk to add security bug testing to their CI pipelines. Learn to balance architecture trade-offs and design scalable enterprise-level software.

Education 100

Education DevOps Infrastructure Benchmarking 100

High Scalability

OCTOBER 27, 2021

No more hassles of benchmarking and tuning algorithms or building and maintaining infrastructure for vector search. Learn how engineering teams are using products like StackHawk and Snyk to add security bug testing to their CI pipelines. Learn to balance architecture trade-offs and design scalable enterprise-level software.

Education 100

Education DevOps Infrastructure Benchmarking 100

High Scalability

SEPTEMBER 29, 2021

No more hassles of benchmarking and tuning algorithms or building and maintaining infrastructure for vector search. Learn how engineering teams are using products like StackHawk and Snyk to add security bug testing to their CI pipelines. Learn to balance architecture trade-offs and design scalable enterprise-level software.

Education 100

Education DevOps Infrastructure Benchmarking 100

High Scalability

SEPTEMBER 15, 2021

No more hassles of benchmarking and tuning algorithms or building and maintaining infrastructure for vector search. Learn how engineering teams are using products like StackHawk and Snyk to add security bug testing to their CI pipelines. Learn to balance architecture trade-offs and design scalable enterprise-level software.

Education 100

Education DevOps Infrastructure Benchmarking 100

The Morning Paper

MAY 27, 2019

Capability integrity prevents direct in-memory manipulation of architectural capability encodings. At hardware reset the boot code is granted maximally permissive architectural capabilities. The CheriABI implementation is used to compile FreeBSD and PostgreSQL, then all of the respective test suites are run. slower to 9.8%

C++ 61

C++ Hardware Virtualization Benchmarking 61

Rigor

JANUARY 13, 2020

This practical guide shows users how run tests & interpret results to gain a better and more thorough understanding of hidden features in WebPageTest. Information Architecture. For UX designers, product managers, developers - essential concepts, methods, and techniques for digital design that have withstood the test of time.

Performance 75

Performance Social Media Website Website Performance 75

Adrian Cockcroft

JUNE 21, 2022

Another big jump, but now it was my job to run benchmarks in the lab, and write white papers that explained the new products to the world, as they were launched. I was mostly coding in C, tuning FORTRAN, and when I needed to do a lot of data analysis of benchmark results used the S-PLUS statistics language, that is the predecessor to R.

Tuning 52

Tuning Benchmarking Engineering C++ 52

Percona

JANUARY 19, 2023

Example: Creating four simple tables to store strings but using different data types: db1 test> CREATE TABLE tb1 (id int auto_increment primary key, test_text char(200)); Query OK, 0 rows affected (0.11 sec) db1 test> CREATE TABLE tb2 (id int auto_increment primary key, test_text varchar(200)); Query OK, 0 rows affected (0.05

Open Source 87

Open Source Storage Database Big Data 87

Dynatrace

OCTOBER 2, 2023

Transforming an application from monolith to microservices-based architecture can be daunting, and knowing where to start can be difficult. Unsurprisingly, organizations are breaking away from monolithic architectures and moving toward event-driven microservices. remove the dependency on the monolith after all testing is successful.

Architecture 232

Architecture Artificial Intelligence Cloud Open Source 232

Speed Curve

MARCH 23, 2016

At the beginning of March we released a major redesign of our Settings UI that gives users more flexibility to get the exact test results they want. The two biggest changes were to the way we emulate devices and to allow different testing configurations for different sites. Flexible Testing. Emulated Phones & Tablets.

Benchmarking 40

Benchmarking Speed Network Website 40

PDC

APRIL 14, 2019

It ranks the world’s 500 most powerful supercomputers based on their performance as measured by the Linpack benchmark. The ranking of the supercomputers in the Top500 list is determined by their performance as measured in specific tests. You may have heard of the Top500 list.

Energy 40

Energy Benchmarking Efficiency Website 40

The Morning Paper

MAY 14, 2019

Last time around we looked at the DeathStarBench suite of microservices-based benchmark applications and learned that microservices systems can be especially latency sensitive, and that hotspots can propagate through a microservices architecture in interesting ways. ASPLOS’19.

Big Data 45

Big Data Cloud Performance Hardware 45

Scalegrid

JULY 29, 2020

In our previous posts in this series, we spoke at length about using PgBouncer and Pgpool-II , the connection pool architecture and pros and cons of leveraging one for your PostgreSQL deployment. Performance Testing. For good measure, we ran the same tests without a connection pooler too. Testing Conditions.

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

Abhishek Tiwari

DECEMBER 27, 2017

A recent performance benchmark completed by Intel and BlueData using the BigBench benchmarking kit has shown that the performance ratios for container-based Hadoop workloads on BlueData EPIC are equal to and in some cases, better than bare-metal Hadoop [7]. Performance.

Big Data 63

Big Data Storage Benchmarking Hardware 63

VoltDB

JUNE 1, 2017

In addition, such custom systems could only be benchmarked once they were deployed, so by the time multiple layers of management had each added a 50% safety margin to the initial SWAG , it was not unusual to see them running at 10% of capacity (but 150% of the lucky hardware salesman’s annual quota).

Hardware 56

Hardware Latency Virtualization Cloud 56

Daniel Lemire

FEBRUARY 8, 2019

I believe that all optimizing C/C++ compilers know how to pull this trick and it is generally beneficial irrespective of the processor’s architecture. The divisibility test is similar… uint64_t c = 1 + UINT64_C ( 0xffffffffffffffff ) / d ; // given precomputed c, checks whether n % d == 0. uint32_t fastmod ( uint32_t n ) {.

C++ 279

C++ Benchmarking Hardware Testing 279

DZone

FEBRUARY 27, 2021

This begins not only in designing the algorithm or coming out with efficient and robust architecture but right onto the choice of programming language. One, by researching on the Internet; Two, by developing small programs and benchmarking. Input The input will contain several test cases (not more than 10).

Java 207

Java C++ Benchmarking Programming 207

VoltDB

JUNE 1, 2017

In addition, such custom systems could only be benchmarked once they were deployed, so by the time multiple layers of management had each added a 50% safety margin to the initial SWAG , it was not unusual to see them running at 10% of capacity (but 150% of the lucky hardware salesman’s annual quota).

Hardware 40

Hardware Latency Virtualization Cloud 40

HammerDB

JANUARY 5, 2019

Some opinions claim that “Benchmarks are meaningless”, “benchmarks are irrelevant” or “benchmarks are nothing like your real applications” However for others “Benchmarks matter,” as they “account for the processing architecture and speed, memory, storage subsystems and the database engine.”

Benchmarking 40

Benchmarking Database Social Media Scalability 40

HammerDB

NOVEMBER 30, 2018

This guide to HammerDB concepts and architectures is aimed at helping you understand how HammerDB is built and how it can be extended and modified. The agent directory contains the agent code to be run on the system under test to gather the CPU utilisation information. Programming Languages. HammerDB CLI v3.1

Architecture 40

Architecture Virtualization Open Source C++ 40

Scalegrid

JUNE 4, 2020

PostgreSQL DigitalOcean Performance Test. Next, we are going to test and compare the latency performance between ScaleGrid and DigitalOcean for PostgreSQL. PostgreSQL Benchmark Setup. Here is the configuration we used for the ScaleGrid and DigitalOcean benchmark performance tests highlighted above: Configuration.

Database 230

Database Latency Benchmarking Performance 230

The Netflix TechBlog

MARCH 14, 2023

Specifically, we will dive into the architecture that powers search capabilities for studio applications at Netflix. In addition, we were able to perform a handful of A/B tests to validate or negate our hypotheses for tuning the search experience. It allowed us to transparently update the algo data without users knowing about it.

Media 291

Media Innovation Energy Architecture 291

Testsigma

MAY 19, 2020

Software testing is the process of finding bugs or discrepancies in a software. As a beginner in software testing, you would make your own mistakes and learn from them to shape your career path. Following are a few common mistakes often made by software testing beginners when they start their journey in the world of testing.

Software 85

Software Software Testing Open Source 85

John McCalpin

APRIL 2, 2020

This includes all architectures, all compilers, all operating systems, and all system configurations. To show that I can criticize my own work as well, here I show that sustained memory bandwidth (using an approximation to the STREAM Benchmark ) is also inadequate as a single figure of metric. (It

Benchmarking 59

Benchmarking Performance Latency Architecture 59

Percona

APRIL 7, 2023

To illustrate this, I ran the Sysbench-TPCC synthetic benchmark against two different GCP instances running a freshly installed Percona Server for MySQL version 8.0.31 This explains, in part , how PostgreSQL performed better out of the box for this test workload. The throughput didn’t double but increased by 57%.

Tuning 135

Tuning Cache Servers Benchmarking 135

Particular Software

SEPTEMBER 20, 2021

Why RPC is “faster” It’s tempting to simply write a micro-benchmark test where we issue 1000 requests to a server over HTTP and then repeat the same test with asynchronous messages. If you did such a benchmark, here’s an incomplete picture you might end up with: Graph of microbenchmark showing RPC is faster than messaging.

Benchmarking 97

Benchmarking Latency Servers Systems 97

Percona

JANUARY 24, 2023

This will be clearly visible in PostgreSQL performance benchmarks as a “ Sawtooth wave ” pattern observed by Vadim in his tests: As we can see, the throughput suddenly drops after every checkpoint due to heavy WAL writing and gradually picks up until the next checkpoint. I couldn’t see any adverse effect on the TPS on quick tests.

Database 116

Database Benchmarking Open Source Latency 116

Percona

JUNE 22, 2023

When planning your database HA architecture, the size of your company is a great place to start to assess your needs. This base architecture keeps the database available for your applications in case the primary node goes down, whether that involves automatic failover in case of a disaster or planned switchover during a maintenance window.

Availability 107

Availability Database Open Source Hardware 107

Brendan Gregg

FEBRUARY 9, 2018

Much of my testing was on Linux 4.14.11 I then analyzed performance during the benchmark ([active benchmarking]), and used other benchmarks to confirm findings. Also microbenchmarks, which often stress-test the system, will suffer the largest losses. and 4.14.12 a month ago, before we deployed in production.

Performance 75

Performance Benchmarking Cache Tuning 75

Dynatrace

APRIL 8, 2021

So, a well architected Lambda architecture can save a lot of costs. If you haven’t done so already, providing a testing environment for developers to easily test their functions with AWS solves most of these challenges and makes the required tooling similar to what’s required for operating microservices.

Lambda 221

Lambda AWS Serverless Monitoring 221

Dynatrace

APRIL 8, 2021

So, a well-architected Lambda architecture can save a lot of costs. If you haven’t done so already, providing a testing environment for developers to easily test their functions with AWS solves most of these challenges and makes the required tooling similar to what’s required for operating microservices.

Lambda 183

Lambda AWS Serverless Monitoring 183

Percona

MARCH 20, 2023

When designing an architecture, many components need to be considered before deciding on the best solution. micro) The tests We will have very simple test cases. The second test will define how well the increasing load is served inside the previously identified range. The scenario with load changes drastically.

Games 120

Games Latency Traffic Cache 120

Percona

AUGUST 22, 2023

We’ll also look at the differences, as it’s important to know what architecture(s) will help you best meet your unique requirements for maximizing data assets and achieving continuous uptime. Architecture for fault-tolerant systems Fault-tolerant information systems are designed to offer 100% availability.

Availability 78

Availability Hardware Open Source Database 78

IO River

NOVEMBER 15, 2023

Let's break down this Security Flywheel into its core components: ‍Research, Close Breaches, and Test. But hold your horses—before switching them to "block" mode, it's crucial to test them extensively. After you've researched, closed breaches, and tested, you start all over again. It's an ongoing, iterative process.

Traffic 52

Traffic Network Logistics Architecture 52

Brendan Gregg

FEBRUARY 8, 2018

Much of my testing was on Linux 4.14.11 I then analyzed performance during the benchmark ([active benchmarking]), and used other benchmarks to confirm findings. Also microbenchmarks, which often stress-test the system, will suffer the largest losses. and 4.14.12 a month ago, before we deployed in production.

Performance 40

Performance Benchmarking Cache Tuning 40

The Netflix TechBlog

SEPTEMBER 2, 2020

While this abundance of dashboards and information is by no means unique to Netflix, it certainly holds true within our microservices architecture. Telltale provides Edgar with latency benchmarks that indicate if the individual trace’s latency is abnormal for this given service. Is this an anomaly or are we dealing with a pattern?

Latency 296

Latency Transportation Engineering Traffic 296

IO River

NOVEMBER 2, 2023

Let's break down this Security Flywheel into its core components: ‍Research, Close Breaches, and Test. But hold your horses—before switching them to "block" mode, it's crucial to test them extensively. After you've researched, closed breaches, and tested, you start all over again. It's an ongoing, iterative process.

Traffic 40

Traffic Network Logistics Architecture 40