Dynatrace

APRIL 7, 2022

One of these solutions is Micrometer which provides 17+ pre-instrumented JVM-based frameworks for data collection and enables instrumentation code with a vendor-neutral API. The Dynatrace registry v2 is available starting with version 1.8.0 This can be set up with a couple of lines of code in your Spring Boot project.

Metrics 130

Metrics Latency Java Cache 130

Dynatrace

APRIL 7, 2022

One of these solutions is Micrometer which provides 17+ pre-instrumented JVM-based frameworks for data collection and enables instrumentation code with a vendor-neutral API. The Dynatrace registry v2 is available starting with version 1.8.0 This can be set up with a couple of lines of code in your Spring Boot project.

Metrics 130

Metrics Latency Java Cache 130

The Netflix TechBlog

SEPTEMBER 8, 2020

On the Android team, while most of our time is spent working on the app, we are also responsible for maintaining this backend that our app communicates with, and its orchestration code. Image taken from a previously published blog post As you can see, our code was just a part (#2 in the diagram) of this monolithic service.

Latency 233

Latency Cache Java Traffic 233

CSS Wizardry

MAY 31, 2019

Users might already have the file cached. If website-a.com links to [link] , and a user goes from there to website-b.com who also links to [link] , then the user will already have that file in their cache. On a slower, higher-latency connection, the story is much, mush worse. Penalty: Caching. All completely avoidable.

Cache 274

Cache Latency Infrastructure Website 274

Dynatrace

SEPTEMBER 13, 2023

Using an interactive no/low code editor, you can create workflows or configure them as code. The Site Reliability Guardian helps automate release validation based on SLOs and important signals that define the expected behavior of your applications in terms of availability, performance errors, throughput, latency, etc.

AWS 252

AWS Efficiency Azure Cloud 252

CSS Wizardry

AUGUST 7, 2019

The first—and often most surprising for people to learn—thing that I want to draw your attention to is that TTFB counts one whole round trip of latency. The reason is because mobile networks are, as a rule, high latency connections. only to find that the resource they’re requesting isn’t in that PoP ’s cache.

Latency 269

Latency Ecommerce Servers Mobile 269

John McCalpin

APRIL 25, 2023

For most high-end processors these values have remained in the range of 75% to 85% of the peak DRAM bandwidth of the system over the past 15-20 years — an amazing accomplishment given the increase in core count (with its associated cache coherence issues), number of DRAM channels, and ever-increasing pipelining of the DRAMs themselves.

Benchmarking 97

Benchmarking Cache Latency Tuning 97

The Netflix TechBlog

JULY 12, 2019

The Tech Hollow , an OSS technology we released a few years ago, has been best described as a total high-density near cache : Total : The entire dataset is cached on each node?—?there there is no eviction policy, and there are no cache misses. Near : the cache exists in RAM on any instance which requires access to the dataset.

Cache 183

Cache Architecture Latency Engineering 183

Sutter's Mill

FEBRUARY 13, 2017

Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). On April 25-27, I’ll be in Stockholm (Kista) giving a three-day seminar on “High-Performance and Low-Latency C++.” If you’re interested in attending, please check out the links, and I look forward to meeting and re-meeting many of you there.

Latency 51

Latency C++ Hardware Performance 51

All Things Distributed

JUNE 21, 2017

Today, I'm excited to announce the general availability of Amazon DynamoDB Accelerator (DAX) , a fully managed, highly available, in-memory cache that can speed up DynamoDB response times from milliseconds to microseconds, even at millions of requests per second. I think the reasons are many, but most follow a similar trend.

Speed 121

Speed Cache Latency AWS 121

All Things Distributed

SEPTEMBER 3, 2013

Choosing your database architecture may be the most critical decision you’ll make and has a disproportionate impact on the performance, scalability, and availability of your app. Get it right and your application will seamlessly scale from hundreds to tens of millions of users without difficulty, while remaining performant and available.

Cache 129

Cache Cloud Performance Retail 129

Adrian Cockcroft

JANUARY 29, 2023

The mean and percentile measurements hide this structure, but the rest of this post will show how the structure can be measured and analyzed so that you can figure out a useful model of your system, understand what is driving the long tail of latencies and come up with better SLAs and measures of capacity.

Lambda 98

Lambda Latency Cache C++ 98

Smashing Magazine

MAY 16, 2022

By stepping back and realizing that the fields available have no special bindings to particular types of data, we can see that this technique is also an effective delivery mechanism for any arbitrary data allowing lots of interesting possibilities. Code used to monitor resources (fetch, XHR, images, stylesheets, scripts, HTML, etc.)

Servers 93

Servers Monitoring Cache Network 93

Brendan Gregg

JULY 2, 2021

biolatency Disk I/O latency histogram heat map. cachestat File system cache statistics line charts. runqlat CPU scheduler latency heat map. This is thinking like a sysadmin who installs and maintains software, and not like a programmer who codes everything. as a traced function was renamed or a new code path added.

Latency 145

Latency Cache Energy Systems 145

CSS - Tricks

APRIL 1, 2021

The code for the site is available on GitHub for reference. Redirects are often pretty light in terms of the latency that they add to a website, but they are an easy first thing to check, and they can generally be removed with little effort. This is a very basic site made with simple HTML, CSS, and JavaScript.

Cache 92

Cache Social Media Media Network 92

ScaleOut Software

MAY 15, 2014

We have spent a great deal of time at ScaleOut Software re-architecting our in-memory data grid (IMDG)’s code base to make best use of many cores and large memory. Likewise, object access paths must be heavily multi-threaded and avoid lock contention to minimize access latency and maximize throughput. Please retry later.

Cache 40

Cache Servers Network Design 40

Smashing Magazine

AUGUST 3, 2023

HTML Processing Once a web page’s HTML file has been downloaded, the browser begins to process the contents line by line, translating code into the visual website that users interact with. It also opens up the possibility for more effective use of caching strategies, potentially enhancing load times further.

Performance 74

Performance Cache Traffic Metrics 74

Adrian Cockcroft

JANUARY 20, 2023

This is a worrying trend for the HPC supercomputer market, and while a new HPL-MxP mixed-precision benchmark shows that it’s possible to leverage lower precision floating point, there’s a lot of existing code that needs 64bit. To me this positions Fugaku as the first of a new mainstream, rather than a special purpose system.

Architecture 52

Architecture Latency Benchmarking AWS 52

CSS Wizardry

MAY 19, 2020

It’s widely accepted that self-hosted fonts are the fastest option: same origin means reduced network negotiation, predictable URLs mean we can preload , self-hosted means we can set our own cache-control. On a high-latency connection, this spells bad news. Put another-other way, this file is latency-bound, not bandwidth-bound.

Google 364

Google Media Latency Metrics 364

Smashing Magazine

JANUARY 11, 2021

Have we optimized enough with tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, progressive hydration, clients hints, HTTP/3, service workers and — oh my — edge workers? It’s much easier to reach performance goals when the code base is fresh or is just being refactored.

Performance 145

Performance Cache Media Metrics 145

All Things Distributed

JUNE 21, 2018

As I have talked about before, one of the reasons why we built Amazon DynamoDB was that Amazon was pushing the limits of what was a leading commercial database at the time and we were unable to sustain the availability, scalability, and performance needs that our growing Amazon.com business demanded. The opposite is true.

Database 167

Database AWS Games Latency 167

The Morning Paper

SEPTEMBER 10, 2019

That’s hard for many reasons, including the differing trade-offs between throughput and latency that need to be made across the use cases. to understand YouTube video performance) drive tens of thousands of canned (known in advance) queries per second, that need to be served with latency in the tens of milliseconds.

Analytics 75

Analytics Latency Cache Google 75

Brendan Gregg

AUGUST 18, 2019

It was created by Alastair Robertson, a talented UK-based developer who has previously won various coding competitions. For example, iostat(1), or a monitoring agent, may tell you your average disk latency, but not the distribution of this latency. This example instrumented one of many thousands of available events.

Latency 68

Latency C++ Cache Programming 68

Alex Russell

DECEMBER 18, 2022

The talks are up on YouTube , including my own (behind a paywall, but the slides are freely available [1] ): The talk, like this post, is an update on network and CPU realities this series has documented since 2017. Last month, I had the honour of joining what seemed like the entire web performance community at performance.now() in Amsterdam.

Performance 113

Performance Network Mobile Latency 113

ScaleOut Software

JULY 21, 2020

For more than fifteen years, ScaleOut StateServer® has demonstrated technology leadership as an in-memory data grid (IMDG) and distributed cache. Instead of querying objects from the IMDG and analyzing them in the client, applications can now simply run this analysis within the IMDG itself using APIs available in ScaleOut StateServer Pro.

Analytics 52

Analytics Airlines Cache Scalability 52

ScaleOut Software

JULY 21, 2020

For more than fifteen years, ScaleOut StateServer® has demonstrated technology leadership as an in-memory data grid (IMDG) and distributed cache. Instead of querying objects from the IMDG and analyzing them in the client, applications can now simply run this analysis within the IMDG itself using APIs available in ScaleOut StateServer Pro.

Analytics 52

Analytics Airlines Cache Scalability 52

All Things Distributed

JULY 14, 2015

Streams provide you with the underlying infrastructure to create new applications, such as continuously updated free-text search indexes, caches, or other creative extensions requiring up-to-date table changes. At launch, an item’s change record is available in the stream for 24 hours after it is created.

Database 167

Database Lambda AWS IoT 167

Smashing Magazine

JANUARY 6, 2020

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? It’s much easier to reach performance goals when the code base is fresh or is just being refactored.

Performance 145

Performance Cache Network Metrics 145

The Netflix TechBlog

NOVEMBER 4, 2019

Best of all, our page can load much faster since everything is cached in Elasticsearch. Listening to Kafka events adds little latency, our fan out operations are really quick since we store foreign keys to identify the edges, and looking up data in an inverted index is fast as well. Our data changes constantly?—?

Cache 240

Cache Database Servers Latency 240

Dotcom-Montior

MARCH 6, 2022

To boost the bandwidth availability, the user should keep the images on a cloud server. If the waiting time is too much, it may mean an overloaded network server or there may be an inefficient code, which must be fixed by software developers by finding the bugs and correcting the code. Waiting time. Queued request. DNS lookup.

Performance 52

Performance Cache Website Speed 52

Percona

JULY 17, 2023

MongoDB replica sets enable data redundancy and automatic failover, setting the stage (there’s that term again) for high availability. Not really open source : Even the MongoDB Community version is not open source; it’s source-available and is under the SSPL license (introduced by MongoDB itself).

Open Source 74

Open Source Database Scalability Software 74

The Morning Paper

APRIL 14, 2019

Microarchitectural state of interest includes data and instruction caches, TLBs, branch predictors, instruction- and data-prefetcher state machines, and DRAM row buffers. The hardware support is not currently available to prevent interconnects being used as covert communication channels, but we can still improve security in many use cases.

Hardware 44

Hardware Cache Latency Speed 44

IO River

NOVEMBER 2, 2023

CloudFront makes a simple choice here as it offers direct integration with all these services to let you cache responses across its global edge locations. This means that if you wish to switch CDN, you’d have to rewrite a vast amount of code to support a new API.‍‍Sign If the CDN fails, your application fails.‍If

Lambda 52

Lambda AWS Cache Website 52

John McCalpin

APRIL 2, 2020

Here I assumed a particular analytical function for the amount of memory traffic as a function of cache size to scale the bandwidth time. Over time, the mechanisms introduced for reducing energy consumption (first in laptops) became available more broadly. Many of these applications (e.g., while the second model is within 1%.

Benchmarking 59

Benchmarking Performance Latency Architecture 59

The Morning Paper

MAY 12, 2019

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. Smaller microservices demonstrated much better instruction-cache locality than their monolithic counterparts.

Open Source 61

Open Source Hardware Benchmarking Systems 61

Smashing Magazine

JANUARY 7, 2019

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? Estimated Input Latency tells us if we are hitting that threshold, and ideally, it should be below 50ms.

Performance 104

Performance Cache Network Metrics 104

Smashing Magazine

AUGUST 20, 2021

However, unlike the early days of the web, static sites are no longer limited to developers working in a code editor. Now there’s a massive range of Jamstack CMSs available, which bring all the advantages of static sites while allowing non-technical folk to update content. We can see all the bones of modern Jamstack CMSs here.

Ecommerce 139

Ecommerce Website Government Internet 139