Daniel Lemire

FEBRUARY 8, 2019

Of course, if d is not a power of two, 2 N / d cannot be represented as an integer. We also published our benchmarks for research purposes. I make my benchmarking code available. Thus if 2 N / d has been precomputed, you can compute the division n/d as a multiplication and a shift. And don’t skip the introduction!

C++ 279

C++ Benchmarking Hardware Testing 279

Dynatrace

FEBRUARY 25, 2021

Of course, this requires a VM that provides rock-solid isolation, and in AWS Lambda, this is the Firecracker microVM. To handle N parallel requests, N Lambda instances need to be available, and AWS will spin up up to 1000 such instances automatically to handle 1000 parallel requests. The virtual CPU is turned off.

Lambda 218

Lambda AWS Monitoring Serverless 218

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., It’s a pretty impressive effort to pull together and make available in open source (not yet available as I write this) such a suite, and I’m sure explains much of the long list of 24 authors on this paper.

Open Source 61

Open Source Hardware Benchmarking Systems 61

CSS Wizardry

FEBRUARY 25, 2021

This, of course, is exacerbated by the new Vitals announcement, whereby data from the Chrome User eXperience Report will be used to aid and influence rankings. Every browser available on iOS is simply a wrapper around Safari. Of course, the whole point of this article is performance profiling, so let’s move over to the Network tab.

Network 225

Network Mobile Performance Traffic 225

Scalegrid

NOVEMBER 25, 2019

In fact, according to ScyllaDB’s performance benchmark report, their 99.9 ScyllaDB’s low cost and high performance capabilities make it an attractive option to GCP users, especially since it is open source compared to Bigtable which is only commercially available on GCP. #3. So this type of performance has to come at a cost, right?

Big Data 187

Big Data Database Open Source Azure 187

Speed Curve

FEBRUARY 25, 2021

Recommendations can come out of audits from consultants or from automated tools like Lighthouse (or SpeedCurve, of course). This traditionally manifests more in back-end time, but can have a huge impact on front-end as well when you factor in asset delivery (images, static content) as well as some advanced optimizations available at the edge.

Performance 143

Performance Benchmarking Metrics Monitoring 143

Smashing Magazine

AUGUST 9, 2022

PageSpeed Compare is a page speed evaluation and benchmarking tool. With Treo Site Speed, you can also benchmark a website against competitors. They are granular and available at domain and page levels. WebPageTest is, of course, a performance testing suite on its own. PageSpeed Compare. Large preview ). Once a week.

Performance 130

Performance Benchmarking Website Metrics 130

Alex Russell

MARCH 9, 2024

Of course, it would be better from the OS vendor's perspective if everyone simply wrote all of the software for their proprietary platform, maximising OS feature differentiation. native, OS-specific) platform and the hopefully weaker web platform. The two sub-variants differ in ambition owing to the market positions of their OS sponsors.

Benchmarking 59

Benchmarking Strategy Internet Internet 59

HammerDB

FEBRUARY 25, 2021

HammerDB is a load testing and benchmarking application for relational databases. However, it is crucial that the benchmarking application does not have inherent bottlenecks that artificially limits the scalability of the database. Basic Benchmarking Concepts. To benchmark a database we introduce the concept of a Virtual User.

Programming 67

Programming Benchmarking Virtualization C++ 67

High Scalability

AUGUST 24, 2021

No more hassles of benchmarking and tuning algorithms or building and maintaining infrastructure for vector search. In addition to other content written by seasoned industry experts, this path includes core material from our bestselling course Grokking the System Design Interview. Try the API now in this 5 minute interactive tutorial.

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. In addition to other content written by seasoned industry experts, this path includes core material from our bestselling course Grokking the System Design Interview. Try the API now in this 5 minute interactive tutorial.

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. In addition to other content written by seasoned industry experts, this path includes core material from our bestselling course Grokking the System Design Interview. Try the API now in this 5 minute interactive tutorial.

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. In addition to other content written by seasoned industry experts, this path includes core material from our bestselling course Grokking the System Design Interview. Try the API now in this 5 minute interactive tutorial.

Education 100

Education DevOps Infrastructure Benchmarking 100

The Morning Paper

NOVEMBER 3, 2019

Most Linux users cannot afford the amount of resource large enterprises like Google put into custom Linux performance tuning… For Google of course, there’s an economy of scale that makes all that effort worth it. A micro-benchmark suite, LEBench was then built around tee system calls responsible for most of the time spent in the kernel.

Performance 108

Performance Benchmarking Tuning Hardware 108

Percona

JANUARY 11, 2024

From that time to now, we had several MySQL releases and, of course, also some new MySQL Router ones.Most importantly, we also had MySQL Router going back to being a level 7 proxy […] In my previous article, Comparisons of Proxies for MySQL, I showed how MySQL Router was the lesser performing Proxy in the comparison.

Performance 87

Performance Benchmarking Availability Servers 87

Percona

DECEMBER 23, 2022

The use case is the TPC-C benchmark but executed not on a high-end server but on a lower-spec virtual machine that is I/O limited like for example, with AWS EBS volumes. I wanted most of the memory to be available for the file cache, where the compressed SST files will be cached. MyRocks Vs InnoDB.

Storage 55

Storage Cache C++ Virtualization 55

Brendan Gregg

MARCH 16, 2024

This technique saves two instructions in the prologue and epilogue and makes one additional general-purpose register (%rbp) available." But I'd rather the cost be zero, of course! Trivia: I had penciled the frame pointer function prologue and epilogue on my Netflix office wall , lower left.)

Java 145

Java Cache Google Hardware 145

Percona

MARCH 23, 2023

These guidelines work well for a wide range of applications, though the optimal settings, of course, depend on the workload. Benchmark before you decide. Typically a good value is 70%-80% of available memory. have been released since then with some major changes. Transparent huge pages (THP) disabled.

Performance 123

Performance Hardware Tuning Storage 123

Percona

NOVEMBER 3, 2023

This means they can ensure that every possible scenario is tested, from data integrity checks to performance benchmarks. Access to specialized tools : There are many tools available for database testing, but they can be expensive and require training to be used effectively.

Database 80

Database Open Source Benchmarking Strategy 80

Percona

MAY 1, 2023

PostgreSQL performance optimization is an ongoing process involving monitoring, benchmarking, and adjustments to maintain high-performing PostgreSQL databases. In production environments, it is observed that a large value for shared_buffer gives really good performance, though you should always benchmark to find the right balance.

Tuning 52

Tuning Efficiency Database Performance 52

HammerDB

APRIL 27, 2021

This displays the available CLI commands with “help command” providing detailed information about the command and arguments required. This will show the benchmark options dialog. Benchmark Options. and benchmark set with the bm argument. In the CLI the print dict command shows us the available options.

Virtualization 73

Virtualization Benchmarking Database Operating System 73

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

Alex Russell

APRIL 29, 2021

This post mines publicly available data on the pace of compatibility fixes and feature additions to assess the claim. 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. Higher is better.

Media 145

Media Games Education Engineering 145

Rigor

FEBRUARY 19, 2020

Of course, since websites change daily (in some cases) and scripts can stop working, it is also important to evaluate a tool based on its troubleshooting capabilities, such as: Can you test the script? Of course, configuring a test with different options is only half the battle. Competitive & Industry Benchmarking.

Monitoring 59

Monitoring Benchmarking Mobile Traffic 59

The Morning Paper

MAY 27, 2019

The goal of all this of course is to prevent attackers injecting, manipulating or abusing pointers in the runtime environment. Microbenchmarks (MiBench) and the FreeBSD system call timing benchmarks show modest performance impact in some cases, and performance improvements in others (3.4% CHERI implementation. slower to 9.8%

C++ 61

C++ Hardware Virtualization Benchmarking 61

The Morning Paper

JUNE 27, 2019

Systems researchers are doing an excellent job improving the performance of 5-year old benchmarks, but gradually making it harder to explore innovative machine learning research ideas. But that won’t solve the ordering issue of course.

Systems 87

Systems Tuning Programming Innovation 87

SQL Performance

APRIL 8, 2019

These VMs are not available in all regions, so you will want to check the availability in the Azure region that you are interested in using. As 128GB DDR4 DIMMs become more widely available that total capacity will double. I wrote about using CPU-Z to benchmark the Intel Xeon E5-2673 v3 processor in an Azure VM in this article.

Azure 42

Azure Virtualization Storage Benchmarking 42

Percona

AUGUST 31, 2018

In production environments, it is observed that a large value for shared_buffer gives really good performance, though you should always benchmark to find the right balance. The effective_cache_size provides an estimate of the memory available for disk caching. Plus another recent post on benchmarks: Tuning PostgreSQL for sysbench-tpcc.

Tuning 54

Tuning Database Performance Benchmarking 54

Alex Russell

MARCH 6, 2021

Modern network performance and availability. Not as much as we'd like, of course, but the worldwide baseline has changed enormously. Using a global ASP as a benchmark can further mislead thanks to the distorting effect of ultra-high-end prices rising while shipment volumes stagnate. Here begins our 2021 adventure. Hard Reset.

Performance 124

Performance Network Cache Metrics 124

Alex Russell

JANUARY 30, 2024

This split decision was available via last year's update , but was somewhat buried. the term "smartphone dependence" has been coined to describe folks without other ways to access the increasing fraction of essential services only available through the internet. Going forward, I'll produce both as top-line guidance. In the U.S.,

Performance 90

Performance Network Mobile Speed 90

Smashing Magazine

FEBRUARY 15, 2021

It’s of course doubtful that you will be able to achieve the same savings that I’ll be showing here, but you will get some useful pointers and tips on things to keep in mind when dealing with videos. In general, the bitrate of your video should be about 80% of the available throughput on the network. The Hungry For Pizza Story.

Network 143

Network Speed Website Mobile 143

Brendan Gregg

FEBRUARY 9, 2018

This overhead can be reduced by A) pcid, fully available in Linux 4.14, and B) Huge pages. - **Cache access pattern**: the overheads are exacerbated by certain access patterns that switch from caching well to caching a little less well. This can turn a 1% overhead (syscall cycles alone) into a 7% overhead. In more detail: ## 1.

Performance 75

Performance Benchmarking Cache Tuning 75

Dynatrace

OCTOBER 31, 2019

With Dynatrace Synthetic you can deliver clean-room performance benchmark and availability monitoring for your business. Today, we’re happy to announce that we’re expanding to all the availability zones that are provided by your cloud regions. Dynatrace news. Where can I view the new IP addresses? What’s next

Scalability 20

Scalability Traffic Benchmarking Monitoring 20

Alex Russell

OCTOBER 22, 2017

Budgets are scaled to a benchmark network & device. If our example document wasn’t reliant on JavaScript to construct the <my-app> custom element, the contents of the document would likely be interactive as soon as enough CSS and content was available to render meaningfully. Global Ground-Truth. 400Kbps transfer.

Performance 68

Performance Benchmarking Network Mobile 68

Apica

MAY 10, 2019

These powerful brands drive much excitement and, of course, dollars. Load and stress-testing benchmark goals for the backend technological components. To top it all off, consumers are very excited about the much-anticipated climaxes of franchises like Avengers, Star Wars, and Game of Thrones.

Testing 40

Testing Performance Social Media Wireless 40

CSS - Tricks

APRIL 1, 2021

Google’s industry benchmarks from 2018 also provide a striking breakdown of how each second of loading affects bounce rates. The code for the site is available on GitHub for reference. Of course, this is something you can do either before upload using a desktop application, like ImageOptim , or even as part of your build process.

Cache 92

Cache Social Media Media Website 92

Smashing Magazine

JUNE 3, 2022

Alternatively, if you want to do something new and expressive, or that has never been done before, then fine, of course. There are many typefaces, and many of them are very similar or are nearly identical to previous or contemporary versions available. As I briefly mentioned, measuring a typeface’s effectiveness is difficult.

Performance 110

Performance Design Best Practices Testing 110