Dynatrace

APRIL 21, 2022

In comparison, the Dynatrace platform reliably takes that burden off human operators by utilizing its causation-based AI engine, Davis. Missing caching layers. Some principles Microsoft provides to help organizations across this area include: Define and test availability targets such as service level agreements (SLAs) and SLOs.

Azure 246

Azure Monitoring Virtualization Metrics 246

KeyCDN

SEPTEMBER 3, 2020

How to measure performance The Website Speed Test is the ideal tool for measuring the performance of your website. Even if a browser doesn't support WebP, our WebP caching feature will ensure that the correct image format is delivered. WebP delivery doesn't require any change on the origin server with the WebP caching feature.

Processing 127

Processing Cache Website Servers 127

Percona

APRIL 7, 2023

Here’s how the same test performed when running Percona Distribution for PostgreSQL 14 on these same servers: Queries: reads Queries: writes Queries: other Queries: total Transactions Latency (95th) MySQL (A) 1584986 1645000 245322 3475308 122277 20137.61 The throughput didn’t double but increased by 57%.

Tuning 145

Tuning Cache Servers Benchmarking 145

KeyCDN

FEBRUARY 4, 2021

ISPs do cache DNS however which means if your first provider goes down it will still try to query the first DNS server for a period of time before querying for the second one. You can test the DNS lookup time and TTFB with a website speed test tool. DNS speed comparison report Who offers the best free DNS?

Cache 134

Cache Website Internet Internet 134

CSS Wizardry

AUGUST 13, 2019

I was doing some cursory research and running a few tests against a potential client’s site so as to get a good understanding of the shape of things before we were to work together. To further exacerbate the problem, the 302 response has a Cache-Control: must-revalidate, private. Can you see it? View full size (31KB).

Latency 213

Latency Cache Strategy Media 213

Smashing Magazine

NOVEMBER 26, 2021

It can also have tests that are flaky and don’t inspire any confidence. You can think of writing unit test cases for your components or utility functions. Your application might also suffer from caching, and performance issues. They handle a lot of things like caching and performance which are difficult to manage on your own.

Cache 145

Cache Code Testing Design 145

Scalegrid

MAY 11, 2024

It uses a filesystem cache and write-ahead log for crash recovery. MongoDB makes use of both the filesystem cache and the WiredTiger internal cache. By default, the WiredTiger cache will occupy 50% of RAM minus 1 GB, or 256 MB. Compaction operation defragments data files & indexes. released in December 2015.

Storage 130

Storage Engineering Cache Database 130

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

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. Testing Scale-Up Performance. So our comments will be confined to what testing we felt was valuable and how well SOSS performed.

Cache 40

Cache Servers Network Design 40

Enprowess

SEPTEMBER 7, 2021

Quick summary : Node vs React Comparison is not correct because both technologies are entirely different things. Node JS vs. React JS Comparison. Unit testing: Node.js has a unit testing framework called Jasmine, which allows unit testing of code during development. Node JS vs. React JS Comparison.

Open Source 52

Open Source Virtualization Programming Servers 52

Smashing Magazine

NOVEMBER 22, 2021

In particular, lab tests are critical for implementing performance budgets in order to prevent performance degradations. This requires the ability to test a very large number of configurations. Currently, WatchTower is able to execute up to 1,000 Lighthouse tests per minute. Large preview ).

Website 141

Website Performance Google Website Performance 141

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. Minification.

Website 111

Website Speed Mobile Design 111

SQL Performance

MARCH 29, 2022

Simple parameterization has a number of quirks in this area, which can result in more parameterized plans being cached than expected, or finding different results compared with the unparameterized version. Reputation = 252552 ; These statements result in six cached plans, three Adhoc and three Prepared : Different guessed types.

Cache 90

Cache Servers Database Testing 90

Highly Scalable

APRIL 2, 2012

The rationale behind these methods is that frontend should be able to fetch transient information very efficiently and separately from fetching of heavy-weight domain entities because this information cannot be cached. So, the only way was to cache all necessary data to minimize interaction with RDBMS.

Ecommerce 100

Ecommerce Cache Storage Architecture 100

Smashing Magazine

JULY 29, 2019

For comparison, the same amount of data costs $6.66 For comparison, $3.67 MB , that suggests I’ve got around 29 pages in my budget, although probably a few more than that if I’m able to stay on the same sites and leverage browser caching. Let’s talk about caching. We’re going to check out Cache-Control. in the USA.

Cache 99

Cache Mobile Google Network 99

The Morning Paper

AUGUST 29, 2019

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. InS does now offer an NVMe variant too, and the authors perform limited testing on that as well. Query performance is measured from both warm and cold caches. Key findings.

Architecture 76

Architecture Cloud Storage Serverless 76

Smashing Magazine

MAY 16, 2022

Examples of this might be, expecting that the HTML is fully static, such that we can cache it downstream in some deterministic manner — “partially dynamic” HTML bodies are much more likely to be handled incorrectly by caching logic. Here are a few that come to mind: Is this request served from the service worker cache?

Servers 111

Servers Monitoring Cache Network 111

CSS - Tricks

MAY 24, 2021

Setting up Cloudflare Workers for web performance optimisation and testing — Matt Hobbs starts with a 101 intro on setting up a Cloudflare Worker, using it to intercept a CSS file and replace all the font-family declarations with Comic Sans. That is, you aren’t penalized for poor CWV, but are given a bonus for good numbers.

Performance 82

Performance Website Cache Internet 82

SQL Performance

MAY 20, 2022

The context is a comparison operator (equals), so the data type is shrunk to a tinyint. Neither is shrunk to a smaller integer subtype because the context is an arithmetical operation, not a comparison. Let’s look at the plan cache: SELECT. [ text ] LIKE '%SomeValue%Test%'. CLEAR PROCEDURE_CACHE ; GO. ) ; GO.

Cache 55

Cache Database Servers Testing 55

HammerDB

JUNE 27, 2022

Also, when testing a database with a De-Witt clause, it was then possible to produce your own results without having to rely on a particular vendor to publish results of interest. When testing database performance there are 2 distinct workloads, transactional or OLTP and analytic (data warehouse, decision support) or OLAP.

Benchmarking 63

Benchmarking Open Source C++ Cache 63

KeyCDN

SEPTEMBER 12, 2019

Most of you have probably seen the following Google PageSpeed Insights optimization suggestion at one point or another when running a speed test: By compressing and adjusting the size of … you can save 14.2 KeyCDN’s Cache Enabler plugin is fully compatible the HTML attributes that make images responsive.

Social Media 106

Social Media Media Google Website 106

The Morning Paper

JUNE 20, 2019

In addition, Azure’s Fault Analysis Service supports various types of fault injections during testing, such as node restart, data migration, and random faults. Microsoft is also using fuzz testing, cloud contract checking, and network configuration verification tools. Data formats. the most common causes are data format change (21%).

Cloud 81

Cloud Azure Cache C++ 81

Smashing Magazine

SEPTEMBER 6, 2021

This explains the challenges involved in deploying and testing HTTP/3 yourself. This approach was touted to be better for fine-grained caching because each subresource could be cached individually and the full bundle didn’t need to be redownloaded if one of them changed. This is more in-depth and technical. Large preview ).

Network 120

Network Servers Cache Traffic 120

SQL Server According to Bob

MAY 19, 2019

There are a bunch of folks with compiler, linker, SQL Server code, testing and other disciplines who provided input. Testing shows that locking mechanisms, such as spin locks, start to become saturated when shared across 8 to 12 CPUs and where the physics become a direct contributor to partitioned design. IO Request Caches.

IoT 61

IoT Servers Development Cache 61

Percona

JANUARY 17, 2019

Aurora Parallel Query response time (for queries which can not use indexes) can be 5x-10x better compared to the non-parallel fully cached operations. Test data and versions. For my test, I need to choose: Aurora instance type and comparison. Aurora instance type and comparison. This query is 100% cached.

Cache 72

Cache C++ AWS Airlines 72

Alex Russell

APRIL 29, 2021

Thanks to the Web Platform Tests project and wpt.fyi , we have the makings of an answer for the first: Tests that fail only in a given browser. wpt.fyi 's new Compat 2021 dashboard narrows this full range of tests to a subset chosen to represent the most painful compatibility bugs : Stable-channel Compat 2021 results over time.

Media 145

Media Games Education Engineering 145

Smashing Magazine

MAY 12, 2022

The ALL line in the graphs refers to all websites in CrUX, not just those that use frameworks, and is used as a reference for comparison. For this reason, Google is researching a better responsiveness metric and is requesting feedback for the experimental metric they’re already testing. Large preview ). Large preview ).

Google 136

Google Performance Website Mobile 136

SQL Performance

JUNE 8, 2022

Decoding also standardizes elements like comparison operators, the AS keyword for aliases, and the presence of an ASC or DESC specification in an ORDER BY clause. The text will normalize to the same parameterized form , allowing a cached prepared plan to be matched and reused. Let’s look at the plan cache: SELECT. Id asc ; GO.

Cache 54

Cache Servers Database Performance 54

Smashing Magazine

JULY 16, 2020

It does a shallow comparison of the props to check this, but an option is available to override this. Splitting code assists with the browser’s cache resources and with code that doesn’t change often. Immutable data objects are easy to create, test, and use. Use SplitChunksPlugin to de-duplicate and split chunks.

Performance 125

Performance Code Virtualization Processing 125

Sutter's Mill

JANUARY 25, 2021

Not only is the integer comparison operation cheap, but min and max are already being accessed by this function and so they’re already “hot” in registers or cache. That’s true whether we’re enabling checking at test time (e.g., Some conditions are so expensive that we may never check them without a good reason, even in testing.

C++ 63

C++ Programming Cache Testing 63

MachMetrics

FEBRUARY 22, 2019

It’s one of the most frequently asked questions I see asked, “I’ve tested my site speed, so now what do these metrics mean?” It is obviously an important number to know, but since it compiles the entire page, it can vary from test to test. It is best used in conjunction with the other metrics to get a true picture.

Speed 56

Speed Metrics Website Cache 56

SQL Performance

AUGUST 23, 2019

We test for matches by applying the same hash functions to each probe-side value. The SQL Server batch mode implementation of a Bloom filter is optimized for modern CPU cache architectures and is known internally as a complex bitmap. LTGT for a less than/greater than comparison). The second type of bitmap is a Bloom filter.

Servers 75

Servers Engineering Efficiency Retail 75

Smashing Magazine

APRIL 11, 2022

web.dev’s main content is an image according to LCP (test ran on WebPageTest). We can use the preload attribute for the HTML link element to optimize loading performance by ensuring that the browser discovers the resource earlier, downloads it, and caches it. Large preview ). to display the content on the screen. Large preview ).

Media 78

Media Tuning Metrics Google 78

CSS - Tricks

MAY 24, 2021

Setting up Cloudflare Workers for web performance optimisation and testing — Matt Hobbs starts with a 101 intro on setting up a Cloudflare Worker, using it to intercept a CSS file and replace all the font-family declarations with Comic Sans. That is, you aren’t penalized for poor CWV, but are given a bonus for good numbers.

Performance 40

Performance Website Cache Internet 40

SQL Performance

AUGUST 4, 2022

To recap: Normalization and decoding promote cached plan reuse. Four constants are identified, with inferred integer data types shrunk to smallint or tinyint due to the comparison operator parsing context (described in part 4 ): This plan will continue to return correct results when reused with different parameter values.

Servers 61

Servers Cache Database Availability 61

Enprowess

MARCH 10, 2022

Angular vs React – The Complete Comparison. Testing in Angular & React. Angular vs React – The Complete Comparison. Angular offers testing and debugging for a complete project with a single tool, while to do different types of testing, React needs a set of tools. Testing in Angular and React.

Development 52

Development Google Servers Open Source 52

Smashing Magazine

AUGUST 9, 2021

This explains the challenges involved in deploying and testing HTTP/3 yourself. HTTP/2 versus HTTP/3 protocol stack comparison ( Large preview ). This is more in depth and technical. People who already know the basics can start here. Practical HTTP/3 deployment options ( coming up soon! ).

Transportation 145

Transportation Internet Internet Network 145