Daniel Lemire

FEBRUARY 8, 2019

The divisibility test is similar… uint64_t c = 1 + UINT64_C ( 0xffffffffffffffff ) / d ; // given precomputed c, checks whether n % d == 0. To test it out, we did many things, but in one particular tests, we used a hashing function that depends on the computation of the remainder. I make my benchmarking code available.

C++ 279

C++ Benchmarking Hardware Testing 279

Dynatrace

JULY 13, 2021

As organizations aim for faster delivery of value to their customers, the frequency of releases inevitably increases, which introduces risks and uncertainty into production systems—unless automated tests and quality gates can be leveraged to provide confidence. Automated comparison of different timeframes based on SLIs and SLOs.

Cloud 246

Cloud DevOps Benchmarking Speed 246

Percona

MARCH 20, 2023

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. Brief summary This test highlights that HAProxy and ProxySQL can reach a level of connection higher than the slowest runner in the game (MySQL Router).

Games 141

Games Latency Traffic Cache 141

Smashing Magazine

MARCH 2, 2021

The State Of Mobile And Why Mobile Web Testing Matters. The State Of Mobile And Why Mobile Web Testing Matters. And to ensure the quality of a product, we always need to test — on a number of devices, and in a number of conditions. What’s a representative device to test on in 2021? Kelvin Omereshone. State Of Mobile 2021.

Mobile 142

Mobile Testing Website Benchmarking 142

Percona

DECEMBER 11, 2023

We performed a standard benchmarking test using the sysbench tool to compare the performance of a DLV instance vs a standard RDS MySQL instance, as shared in the following section. Benchmarking AWS RDS DLV setup Setup 2 RDS Single DB instances 1 EC2 Instance Regular DLV Enabled Sysbench db.m6i.2xlarge

AWS 117

AWS Benchmarking Performance Traffic 117

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 145

Tuning Cache Servers Benchmarking 145

HammerDB

OCTOBER 23, 2023

HammerDB uses stored procedures to achieve maximum throughput when benchmarking your database. HammerDB has always used stored procedures as a design decision because the original benchmark was implemented as close as possible to the example workload in the TPC-C specification that uses stored procedures. On MySQL, we saw a 1.5X

Benchmarking 63

Benchmarking Database Network C++ 63

Particular Software

SEPTEMBER 20, 2021

It’s less of an apples-to-oranges comparison and more like apples-to-orange-sherbet. 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. But the answer isn’t that simple. And this makes sense!

Benchmarking 97

Benchmarking Latency Servers Systems 97

Scalegrid

JULY 13, 2020

These new applications are a great way for enterprise companies to test out PostgreSQL before migrating their entire infrastructure. Comparison Overview. Let’s take a look at core functionality of these two relational database management systems. PostgreSQL. Scalability.

Open Source 244

Open Source Tuning C++ Database 244

Percona

MARCH 17, 2023

Percona’s co-Founder Peter Zaitsev wrote a detailed post about migration from Prometheus to VictoriaMetrics , One of the most significant differences in terms of performance of PMM2 comes with the usage for VM, which can also be derived from performance comparison on node_exporter metrics between Prometheus and VictoriaMetrics.

Monitoring 117

Monitoring Scalability Database Cache 117

Speed Curve

OCTOBER 25, 2023

Benchmark your site against your competitors Our public-facing Industry Benchmarks dashboard gets a lot of visits, but did you know you can create your own custom competitive benchmarking dashboard in SpeedCurve? READ : How to create a competitive benchmark dashboard ––––– 4.

Benchmarking 72

Benchmarking Metrics Website Testing 72

HammerDB

JUNE 27, 2022

HammerDB is a software application for database benchmarking. Databases are highly sophisticated software, and to design and run a fair benchmark workload is a complex undertaking. The Transaction Processing Performance Council (TPC) was founded to bring standards to database benchmarking, and the history of the TPC can be found here.

Benchmarking 63

Benchmarking Open Source C++ Cache 63

Speed Curve

MAY 31, 2020

While you've always had the ability to do this in SpeedCurve, we recently added new functionality that makes it much easier for you to bookmark and compare different Synthetic tests in your test history. Along the way, we've also made it much more intuitive for you to drill down into your detailed Synthetic test results.

Metrics 66

Metrics Retail Benchmarking Testing 66

Smashing Magazine

JUNE 26, 2019

Instead, I suggest that web designers use another Google testing tool called Test My Site. Test My Site is a mobile page speed testing tool from Think with Google. Source: Test My Site ) ( Large preview ). All you need to do is enter your domain name into the field and let the test run. Brian Jackson’s Test.

Website 111

Website Speed Mobile Design 111

Brendan Gregg

SEPTEMBER 25, 2021

There's also a test and println() in the loop to, hopefully, convince the compiler not to optimize-out an otherwise empty loop. This will slow this test a little.) As I'm interested in the relative comparison I can just compare the total runtimes (the "real" time) for the same result. Trying it out: centos$ time java TimeBench.

Speed 103

Speed Java AWS Virtualization 103

The Morning Paper

AUGUST 29, 2019

use the TPC-H benchmark to assess Redshift, Redshift Spectrum, Athena, Presto, Hive, and Vertica to find out what works best and the trade-offs involved. 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. Key findings.

Architecture 76

Architecture Cloud Storage Serverless 76

Speed Curve

DECEMBER 21, 2022

Expanded our test agent locations to bring you even more places to test from worldwide. Your current competitive benchmarks status. As you may already know, we run full Lighthouse audits on every page you test in synthetic. Expanded Industry Speed Benchmarks. The current status of your performance budgets.

Benchmarking 52

Benchmarking Retail Traffic Metrics 52

Enprowess

SEPTEMBER 20, 2021

You’ll be able to use a scaffolding tool referred to as create-react-app to begin building your project , establish a local development server, check your code for errors, and execute unit tests/e2e. They are battle-tested leaders with the support from tech giants and a large open-source community. Both React.js

Open Source 52

Open Source Mobile Google Scalability 52

Alex Russell

APRIL 29, 2021

As an engineer on a browser team, I'm privy to the blow-by-blow of various performance projects, benchmark fire drills, and the ways performance marketing (deeply) impacts engineering priorities. With each team, benchmarks lost are understood as bugs. All modern browsers are fast, Chromium and Safari/WebKit included. Lower is better.

Media 145

Media Games Education Engineering 145

HammerDB

JULY 6, 2024

This is a brief post to highlight the metrics to use to do the comparison using a separate hardware platform for illustration purposes. per sec, multiplied by 60 gives us 489,754 TPM (transactions per minute) and is the figure we can use for comparison as can be seen from the HammerDB transaction output giving the same data.

C++ 52

C++ Hardware Benchmarking Virtualization 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 111

Open Source Storage Database Big Data 111

Tim Kadlec

JUNE 26, 2008

Test Driven Development. There was a nice article at Sitepoint about Test Driven Development. Firefox 3 Memory Benchmarks and Comparison. being freshly released, here’s a nice memory performance comparison of those browsers, as well as the IE Beta version 1 and Flock. With both Firefox 3 and Opera 9.5

Benchmarking 40

Benchmarking Operating System Testing Technology 40

HammerDB

DECEMBER 9, 2020

NOPM should be considered the primary metric and is the only one that should be used for a cross database comparison. <benchmark> <first_result>TPM</first_result> </benchmark> So why not just print NOPM and report a single metric for TPROC-C as per the official TPC-C workloads? . <benchmark>

C++ 52

C++ Benchmarking Metrics Database 52

Rigor

FEBRUARY 19, 2020

One of the key benefits of synthetic monitoring is that you can define the specific actions of a test, allowing you to walk through key flows of your application like a checkout flow or a sign-up flow, to verify its functionality and performance. Can you manually edit recorded tests or do you need to completely re-record?

Monitoring 59

Monitoring Benchmarking Mobile Testing 59

Speed Curve

JULY 2, 2013

SpeedCurve focuses on a third which I like to call web performance benchmarking. It's often called synthetic testing as tests are run from servers in a data centre and don't accurately represent what speeds an actual user might get. Web Performance Benchmarking. Uptime Monitoring. Real User Monitoring.

Benchmarking 40

Benchmarking Performance Website Analytics 40

Percona

DECEMBER 20, 2018

I found the comparison of InnoDB vs. MyISAM quite interesting, and I’ll use it in this post. Not being entirely sure of what I was seeing during a customer visit, I set out to create some simple tests to measure the impact of triggers on database performance. AMD EPYC Performance Testing… or Don’t get on the wrong side of SystemD.

Database 51

Database Tuning Performance AWS 51

Brendan Gregg

SEPTEMBER 25, 2021

There's also a test and println() in the loop to, hopefully, convince the compiler not to optimize-out an otherwise empty loop. This will slow this test a little.) As I'm interested in the relative comparison I can just compare the total runtimes (the "real" time) for the same result. us on Centos and 0.68

Speed 52

Speed Java AWS Virtualization 52

ScaleOut Software

MAY 15, 2014

Testing Scale-Up Performance. Well, performance comparisons aren’t so easy since the AppFabric license agreement states: “You may not disclose the results of any benchmark tests of the software to any third party without Microsoft’s prior written approval.” That’s actually quite fast. (We

Cache 40

Cache Servers Network Design 40

Alex Russell

MAY 9, 2022

Improving latency and reducing variance allows teams to test other product hypotheses with less noise. Even junior PM s internalise the notion that product quality is at risk if tests are not built, automated, and tracked. Reduced network and device capacity correlate with other access challenges. Protecting the Commons #.

Performance 99

Performance Latency Metrics Engineering 99

Brendan Gregg

SEPTEMBER 25, 2021

There's also a test and println() in the loop to, hopefully, convince the compiler not to optimize-out an otherwise empty loop. This will slow this test a little.) As I'm interested in the relative comparison I can just compare the total runtimes (the "real" time) for the same result. us on Centos and 0.68 us on Ubuntu.

Speed 40

Speed Java AWS Virtualization 40

Speed Curve

JANUARY 31, 2018

One of the great things about synthetic monitoring via tools like WebPageTest (which SpeedCurve synthetic is built on top of) is that you can test any page on the web, not just your own. Here's how to set up ongoing competitive benchmarking and generate comparison videos. Make things visible (but not overwhelming).

Performance 40

Performance Metrics Traffic Monitoring 40

John McCalpin

JANUARY 22, 2018

After almost four weeks, we have a solid characterization of the behavior — no tested code exceeds an execution rate of 12 vector pipe instructions every 7 cycles (6/7 of the nominal peak) when executed on a single core — but we are unable to propose a testable quantitative model for the source of the throughput limitation.

Latency 40

Latency Hardware Code Testing 40

John McCalpin

JANUARY 22, 2018

After almost four weeks, we have a solid characterization of the behavior — no tested code exceeds an execution rate of 12 vector pipe instructions every 7 cycles (6/7 of the nominal peak) when executed on a single core — but we are unable to propose a testable quantitative model for the source of the throughput limitation.

Latency 40

Latency Hardware Code Testing 40

HammerDB

OCTOBER 12, 2018

This post complements the previous best practice guides this time with the focus on MySQL and MariaDB and achieving top levels of performance with the HammerDB MySQL TPC-C test. InnoDB is the storage engine that will deliver the best OLTP throughput and should be chosen for this test. . HammerDB difference from Sysbench.

Best Practices 40

Best Practices Scalability Performance C++ 40

Scalegrid

JULY 29, 2020

In our final post, we will put them head-to-head in a detailed feature comparison and compare the results of PgBouncer vs. Pgpool-II performance for your PostgreSQL hosting ! Performance Testing. For good measure, we ran the same tests without a connection pooler too. Testing Conditions. Throughput Benchmark.

Benchmarking 246

Benchmarking Database Performance Testing Availability 246

SQL Server According to Bob

JANUARY 11, 2020

Pull-the-plug ​​ power ​​ outage testing ​​ Power outage testing ​​ is ​​ a fundamental and critical part of the administrator’s data safety and integrity requirements. ​​ Incorrect configurations lead to data loss.

Servers 40

Servers Cache Database Media 40

Smashing Magazine

JANUARY 11, 2021

Testing And Monitoring Auditing workflow, proxy browsers, 404 page, GDPR cookie consent prompts, performance diagnostics CSS, accessibility. You can then mimic the 90th percentile’s experience for testing. Now you have something measurable to test against. Quick Wins. Download The Checklist (PDF, Apple Pages, MS Word).

Performance 145

Performance Cache Media Metrics 145