Expert insights. Personalized for you.
Who writes code? The obvious answer is that developers write code. Who makes sure the code works? Many companies have separate QA departments that are responsible for making sure code works. Developers write code, then they throw it over a wall for someone else to test for them The answer to this question also seems obvious. It should also be developers… right? Fairly often, that is not actually the case. MORE
We are explicit about our dependencies, so we know what code we need to run to run a specific component. Lazy-loading and bundle splitting can have a huge impact on page performance: less code requested, parsed, and executed. Code Splitting and CSS-in-JS : How CSS-in-JS extends code-splitting and lazy-loading to CSS, SVGs and other resources. When you send the user code that is not needed, you waste resources from your end, and from the user’s end. MORE
The following diagram with 20,000 nodes in a simulated power grid gives you an idea of how many data sources need to be simultaneously tracked and analyzed: The solution to this challenge is to refactor the problem so that application code can ignore the overall complexity of the event stream and focus on using domain-specific expertise to analyze telemetry from a single data source. MORE
When you're working with any code, whether it's automation or software code, it should be treated the same way. One of the many things that don't come up as often when you're automating vs when you're building application code is testing. MORE
Dynatrace has long provided automatic code-level performance monitoring for PHP applications with OneAgent. Automatically locate bottlenecks in your code. Full code-level visibility into your PHP CLI application. You can easily find and fix the most CPU-consuming methods within your PHP code. Instrumentation of PHP CLI processes with code specified as a command-line argument is not supported. Dynatrace news. MORE
The first step towards this goal is the recently announced move of the HammerDB source code to the TPC-Council GitHub repository. The previous developer owned GitHub repository sm-shaw github repository has been deleted and the TPC-Council repository will be the source code repository for ongoing and future HammerDB development. To understand the difference between the downloadable binaries and the source code view the post on HammerDB Concepts and Architecture. MORE
The fix was a few lines of code to stop traversing after twenty navigation nodes, presumably saving a few million dollars in server and power costs. I’d worked my way through most of the errors and had one final change waiting for code-review before I submitted it. MORE
Readable code is usable code. The non-used code blocks saved for future use are sometimes forgotten and another developer could not be in want of changing the code of the legacy system. Such non-used code blocks may affect code readability in the future. We are lucky today many code review tools exist for coding mistakes etc., but using tools is not enough to help code readability. MORE
Code coverage is a metric indicating the percentage of lines of code that are executed when running automated tests, specifically unit and integration tests , for instance. performance xml maven code code coverage tests jacocoIt’s known that having automated tests as part of your build process improves the software quality and reduces the number of bugs. MORE
For this blog post I want to focus on how you can leverage Dynatrace to get a lot of insight into your plugin code. Part 1 – The code as it stood. As the plugin needs to run in less than a minute, even on very large environments I have to monitor the execution time of my code. Without monitoring the code with Dynatrace it was starting to look like this: Dynatrace supports many languages out-of-the box by simply installing the OneAgent (such as Java,NET, Node.js, …). MORE
Davis has the unique ability to precisely identify code-level findings, such as resource consumption during the span of an individual transaction. Why code-level context is important. Code-level context is the crucial information that helps DevOps teams to immediately locate the fundamental problems within their service implementations. Without such detailed information, it simply isn’t possible to identify the real code-level cause of a software problem. MORE
Programmers want to write good code. High quality software includes many things, one of which is making code easy to modify/maintainable. There are always new versions with new features which obviously means that there is more code written. That code is usually written on top of existing features It makes sense. Folks in every profession take pride in their work and want to make sure it is of the highest quality. MORE
Test Coverage and Code coverage are the most popular methodologies for measuring the effectiveness of the code. This is why I thought of coming up with an article to talk about the differences between code coverage and test coverage in detail. software testing automation testing code coverage selenium automation testing software test automation test coverageMake sure you stay covered! MORE
And the code-level root cause information is what makes troubleshooting easy for developers. As Dynatrace automatically captures stack traces for all threads at all time the CPU Hotspot analysis makes it easy to identify which code is consuming all that CPU in that particular thread. MORE
At Dynatrace we believe that monitoring and performance should both be automated processes that can be treated as code without the need for any manual intervention. And, applying the “Everything as Code” principles can greatly help achieve that. Treating these different processes as code will ensure that best practices are followed. Benefits of Everything as Code. Since code is now version controlled, rollbacks should be easy to apply. Dynatrace news. MORE
I recently improved flame graph code coloring. Code-type coloring was a regex hack that took five minutes. My hack was the following eight lines of code: if (defined $type and $type eq "java") { if ($name =~ /::/) { # C++ $type = "yellow"; } elsif ($name =~ m:/:) { # Java (match "/" in path) $type = "green" } else { # system $type = "red"; }. And that's what I coded. I had similar issues with JIT'd code for Node.js. MORE
Analyze, chart, and report on microservices-based metrics without code changes appeared first on Dynatrace blog. Dynatrace news. As the owner of a ride-hailing company, for example, you might have questions like “How many active drivers do we have per region?”, “What’s their average ride distance?”, or “Which are the most popular destinations?” Also, you’d probably like to be alerted of significant anomalies. MORE
This system is much older than the PVS-Studio static code analyzer, but no one has tried to apply the analyzer on its code and review the errors. CMake is a cross-platform system for automating software building from source code. By the way, the CMake code has a few warnings from this first set. devops performance programming code quality cpp static code analysis cmake static code analyzer MORE
This article shows how to exclude lower income ZIP codes in Google Ads. For cosmetic dentists, proper targeting is everything in PPC advertising. Cosmetic dentists typically target more affluent clients that can afford their smile makeover services. Marketing cosmetic services to your entire target geography does not make economic sense. A better approach is to only market to geographic areas that can afford your services. MORE
It is always exciting for developers from all over the world whenever they get to showcase their best code editor at computer expos and tech conferences. On that note when we talk about free code editors for Windows and Mac to use in the year 2020, we cannot help but wait in anticipation for brand-new features to use right away. In this write-up, we will talk about the best coding software for multiple platforms. MORE
In a bid to have web applications serve needs for different types of users, it’s likely that more code is required than it would be for one type of user so the app can handle and adapt to different scenarios and use cases, which lead to new features and functionalities. Code splitting is a technique where an application only loads the code it needs at the moment, and nothing more. Code splitting is possible in a React application using React Loadable. MORE
The following diagram with 20,000 nodes in a simulated power grid gives you an idea of how many data sources need to be simultaneously tracked and analyzed: The solution to this challenge is to refactor the problem so that application code can ignore the overall complexity of the event stream and focus on using domain-specific expertise to analyze telemetry from a single data source. MORE
Brief overview of image coding formats The JPEG format was introduced in 1992 and is widely popular. This is followed by quantization and entropy coding. It brought a whole range of additional features such as spatial scalability, region of interest coding, range of supported bit-depths, flexible number of color planes, lossless coding, etc. With the motion extension, it was accepted as the video coding standard for digital cinema in 2004. MORE
The O’Reilly Media Podcast: Daniel Krook, IBM developer advocate, on the Call for Code Global Initiative at IBM. In an effort to help the communities of the world be better prepared to handle these tough situations, David Clark Cause launched Call for Code along with IBM as the founding partner. Call for Code is a worldwide, multi-year initiative that challenges developers to solve pressing problems with sustainable software solutions. MORE
I usually precede the code that I want to test with a “warm-up” loop consisting of at least a few seconds of execution of instructions using the same SIMD width as the code that I want to test. This is even more confusing when you consider vectorization and loop unrolling, which the compiler may change significantly from one compilation to the next as you fiddle with your code. For simple loops, you can look at the assembly code and count instructions. MORE
Fully automatic deep code monitoring module injection. One of the unique strengths of Dynatrace OneAgent is the fully automated injection of the deep code monitoring module on Windows and Linux. Fully automated deep code monitoring module injection is available for all customers as of OneAgent version 1.175. Fully automatic deep code monitoring is available for all supported AIX versions, except AIX 6.1 Dynatrace news. MORE
I started coding when I was 8 years old, and I am 46 today. This implies I've got 38 years of software development experience, roughly 25 as a professional - And to be honest with you, the answer to the above question is actually "drugs". MORE
Successfully programming an application requires an ingenious mix of lines of code that combine to bring life and versatility to the application. Kuzzmi , who has more than seven years of web development experience and currently teaches people how to create successful web applications, says that “the decision whether to use long lines of code or short lines of code depends on a developer’s skill set, desires, and anticipated results.”. MORE
The following diagram with 20,000 nodes in a simulated power grid gives you an idea of how many data sources need to be simultaneously tracked and analyzed: The solution to this challenge is to refactor the problem so that application code can ignore the overall complexity of the event stream and focus on using domain-specific expertise to analyze telemetry from a single data source. MORE
Convenience always has a price, and with a ‘blinky’ it is that the code size for just ‘toggling a GPIO pin’ is exaggerated. It is great if vendors provide a starting point for my own projects. A working ‘blinky’ is always a great starter. For a device with a tiny amount of RAM and FLASH this can be concerning: will my application ever fit to that device if a ‘blinky’ takes that much? Don’t worry: a blinky (or any other project) can be easily trimmed down. Binky on NXP LPC845-BRK Board. MORE
That’s because all code is technical debt. Developers often try to minimize the amount of technical debt they take on when building software. Many will even try to have “zero” technical debt. It sounds like a worthwhile goal. Technical debt can be extremely costly in the long term so getting rid of it can be extremely advantageous down the line. It isn’t possible to have zero technical debt though. Every single line of it MORE
Read on to find out some Java technical interview questions! Almost any Java technical interview contains several questions covering Java concurrency topics. A common scenario for a beginner-intermediate level sound like this: Interviewer: Can you enumerate the Java thread life cycle states? java performance interview concurrency thread thread life MORE
Blocking code is code which blocks executing threads until their operations finish. This article assumes some basic knowledge about the differences between blocking and non-blocking code. What I am going to do is to introduce a very simple app with some blocking code inside and show you how you can easily figure out where your threads are usually blocked and then you might identify a better way to implement those certain parts of code and do it much more efficiently. MORE
Throughout my career as a software engineer, many people have told me that learning to write code is difficult. The real difficulty lies in the fact that most people are taught computer science before they are taught to write code. I challenge this claim. By computer science, I mean fundamental concepts such as the number of bits in an integer or how various pieces of data are stored in memory MORE
testing test automation code test bugs artificial intelligence (ai) hackathon end to end testing code maintenance test codeHow much is it worth to catch more bugs early in your product release process? Depending on where you are in your release process, you might be writing unit or systems tests. But, you need to run end-to-end tests to prove behavior, and quality engineers require a high degree of skill to write end-to-end tests successfully. MORE
They may spend a good portion of their day around whiteboards with various teams, but they also spend a decent amount of time writing code. They view writing code as beneath them What defines a software architect? It usually means someone has achieved a high level of technical skill. Most of the architects I’ve worked with have been quite good. Occasionally, I meet someone who has let the title go to their head. MORE
Software code review plays an important role in software quality. The code review can happen in multiple stages, by multiple people, on multiple deliverables. Reviewing code for software quality can be stressful! You may also like: Code Review. Peer Code Reviews. performance software developent software quality code reviews pull requests knowledge retentionEach one of them focuses on specific areas of software. MORE
Optimize your code by finding and fixing the root cause of garbage collection problems. These details arm you with the knowledge necessary to find the respective code and remove unnecessary allocations. Any significant reduction in allocations will inevitably speed up your code. These are methods and stack traces in your code (each with the respective amounts of memory and objects) that were allocated by the code and survived garbage collections. Dynatrace news. MORE
Your test code is a mess. You're not quite sure where anything is anymore. The fragility of it is causing your builds to fail. You're hesitant to make any changes for fear of breaking something else. The bottom line is that your tests do not spark joy, as organizing guru Marie Kondo would say. App Dev & Testing, Testing, Application Testing, Special Coverage: STAREAST Conference 2019 MORE
These days, our code frequently has to reach out to a remote server as part of its job, usually consuming an API or some other service. Frequently, our code communicates with these remote services in a RESTful manner. Introduction. java server performance spring rest http junit mocking frameworks MORE
The reaction from one of the developers was simply: “I don’t want to maintain their code.” The worst code is always other people’s code. I recently heard of a situation where a team needs to hire someone since they’re understaffed. I understand this mentality. For most developers, this is simply fact. What is also fact is that very little software of significance gets built by the lone wolf. Building software is a difficult endeavour MORE
Analyze microservice-based metrics without code changes (Part 2) appeared first on Dynatrace blog. Dynatrace news. In Part 1 of this blog series , we presented a few Dynatrace customer use cases for multidimensional analysis. For example, we presented how a multinational travel agency uses MDA to diagnose error rates per loyalty status to make sure that their premium customers have a perfect software experience. MORE
Code reviews are seen as an essential part of software development. It makes a lot of sense to say that a programmer should have their work reviewed by another programmer. Authors and journalists have their work reviewed by an editor after all. Humans make mistakes and creators especially get a little tunnel vision when they are focused on making their creations. Having someone else look at it can catch many errors MORE
A blog post about Oracle error codes? If you doubt that this might be possible or of interest, then answer these two questions: database performance oracle code database performance error pl/sql code errorCuriosities about them, even? MORE
Code Related Topics DZone
OCTOBER 25, 2020
I started coding when I was 8 years old, and I am 46 today. This implies I've got 38 years of software development experience, roughly 25 as a professional - And to be honest with you, the answer to the above question is actually "drugs".
Dynatrace
OCTOBER 17, 2019
At Dynatrace we believe that monitoring and performance should both be automated processes that can be treated as code without the need for any manual intervention. And, applying the “Everything as Code” principles can greatly help achieve that. Treating these different processes as code will ensure that best practices are followed. Benefits of Everything as Code. Since code is now version controlled, rollbacks should be easy to apply. Dynatrace news.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
DZone
JUNE 19, 2020
It is always exciting for developers from all over the world whenever they get to showcase their best code editor at computer expos and tech conferences. On that note when we talk about free code editors for Windows and Mac to use in the year 2020, we cannot help but wait in anticipation for brand-new features to use right away. In this write-up, we will talk about the best coding software for multiple platforms.
DZone
SEPTEMBER 14, 2020
When you're working with any code, whether it's automation or software code, it should be treated the same way. One of the many things that don't come up as often when you're automating vs when you're building application code is testing.
DZone
AUGUST 30, 2019
Software code review plays an important role in software quality. The code review can happen in multiple stages, by multiple people, on multiple deliverables. Reviewing code for software quality can be stressful! You may also like: Code Review. Peer Code Reviews. performance software developent software quality code reviews pull requests knowledge retentionEach one of them focuses on specific areas of software.
DZone
APRIL 24, 2019
Code coverage is a metric indicating the percentage of lines of code that are executed when running automated tests, specifically unit and integration tests , for instance. performance xml maven code code coverage tests jacocoIt’s known that having automated tests as part of your build process improves the software quality and reduces the number of bugs.
DZone
JANUARY 17, 2020
Test Coverage and Code coverage are the most popular methodologies for measuring the effectiveness of the code. This is why I thought of coming up with an article to talk about the differences between code coverage and test coverage in detail. software testing automation testing code coverage selenium automation testing software test automation test coverageMake sure you stay covered!
Dynatrace
OCTOBER 21, 2020
And the code-level root cause information is what makes troubleshooting easy for developers. As Dynatrace automatically captures stack traces for all threads at all time the CPU Hotspot analysis makes it easy to identify which code is consuming all that CPU in that particular thread.
DZone
AUGUST 28, 2019
These days, our code frequently has to reach out to a remote server as part of its job, usually consuming an API or some other service. Frequently, our code communicates with these remote services in a RESTful manner. Introduction. java server performance spring rest http junit mocking frameworks
Dynatrace
MAY 6, 2019
For this blog post I want to focus on how you can leverage Dynatrace to get a lot of insight into your plugin code. Part 1 – The code as it stood. As the plugin needs to run in less than a minute, even on very large environments I have to monitor the execution time of my code. Without monitoring the code with Dynatrace it was starting to look like this: Dynatrace supports many languages out-of-the box by simply installing the OneAgent (such as Java,NET, Node.js, …).
Dynatrace
OCTOBER 24, 2019
Davis has the unique ability to precisely identify code-level findings, such as resource consumption during the span of an individual transaction. Why code-level context is important. Code-level context is the crucial information that helps DevOps teams to immediately locate the fundamental problems within their service implementations. Without such detailed information, it simply isn’t possible to identify the real code-level cause of a software problem.
DZone
MAY 28, 2020
Successfully programming an application requires an ingenious mix of lines of code that combine to bring life and versatility to the application. Kuzzmi , who has more than seven years of web development experience and currently teaches people how to create successful web applications, says that “the decision whether to use long lines of code or short lines of code depends on a developer’s skill set, desires, and anticipated results.”.
DZone
JUNE 5, 2019
Blocking code is code which blocks executing threads until their operations finish. This article assumes some basic knowledge about the differences between blocking and non-blocking code. What I am going to do is to introduce a very simple app with some blocking code inside and show you how you can easily figure out where your threads are usually blocked and then you might identify a better way to implement those certain parts of code and do it much more efficiently.
DZone
AUGUST 22, 2019
Convenience always has a price, and with a ‘blinky’ it is that the code size for just ‘toggling a GPIO pin’ is exaggerated. It is great if vendors provide a starting point for my own projects. A working ‘blinky’ is always a great starter. For a device with a tiny amount of RAM and FLASH this can be concerning: will my application ever fit to that device if a ‘blinky’ takes that much? Don’t worry: a blinky (or any other project) can be easily trimmed down. Binky on NXP LPC845-BRK Board.
DZone
SEPTEMBER 13, 2019
Readable code is usable code. The non-used code blocks saved for future use are sometimes forgotten and another developer could not be in want of changing the code of the legacy system. Such non-used code blocks may affect code readability in the future. We are lucky today many code review tools exist for coding mistakes etc., but using tools is not enough to help code readability.
CSS - Tricks
MARCH 6, 2019
In a bid to have web applications serve needs for different types of users, it’s likely that more code is required than it would be for one type of user so the app can handle and adapt to different scenarios and use cases, which lead to new features and functionalities. Code splitting is a technique where an application only loads the code it needs at the moment, and nothing more. Code splitting is possible in a React application using React Loadable.
Randon ASCII
AUGUST 30, 2020
The fix was a few lines of code to stop traversing after twenty navigation nodes, presumably saving a few million dollars in server and power costs. I’d worked my way through most of the errors and had one final change waiting for code-review before I submitted it.
Professor Beekums
AUGUST 19, 2018
Who writes code? The obvious answer is that developers write code. Who makes sure the code works? Many companies have separate QA departments that are responsible for making sure code works. Developers write code, then they throw it over a wall for someone else to test for them The answer to this question also seems obvious. It should also be developers… right? Fairly often, that is not actually the case.
Dynatrace
APRIL 8, 2020
Optimize your code by finding and fixing the root cause of garbage collection problems. These details arm you with the knowledge necessary to find the respective code and remove unnecessary allocations. Any significant reduction in allocations will inevitably speed up your code. These are methods and stack traces in your code (each with the respective amounts of memory and objects) that were allocated by the code and survived garbage collections. Dynatrace news.
DZone
JANUARY 20, 2020
Read on to find out some Java technical interview questions! Almost any Java technical interview contains several questions covering Java concurrency topics. A common scenario for a beginner-intermediate level sound like this: Interviewer: Can you enumerate the Java thread life cycle states? java performance interview concurrency thread thread life
Dynatrace
JUNE 12, 2020
Dynatrace has long provided automatic code-level performance monitoring for PHP applications with OneAgent. Automatically locate bottlenecks in your code. Full code-level visibility into your PHP CLI application. You can easily find and fix the most CPU-consuming methods within your PHP code. Instrumentation of PHP CLI processes with code specified as a command-line argument is not supported. Dynatrace news.
Dynatrace
JANUARY 17, 2020
Analyze, chart, and report on microservices-based metrics without code changes appeared first on Dynatrace blog. Dynatrace news. As the owner of a ride-hailing company, for example, you might have questions like “How many active drivers do we have per region?”, “What’s their average ride distance?”, or “Which are the most popular destinations?” Also, you’d probably like to be alerted of significant anomalies.
Professor Beekums
FEBRUARY 12, 2017
Programmers want to write good code. High quality software includes many things, one of which is making code easy to modify/maintainable. There are always new versions with new features which obviously means that there is more code written. That code is usually written on top of existing features It makes sense. Folks in every profession take pride in their work and want to make sure it is of the highest quality.
Dynatrace
FEBRUARY 5, 2020
Analyze microservice-based metrics without code changes (Part 2) appeared first on Dynatrace blog. Dynatrace news. In Part 1 of this blog series , we presented a few Dynatrace customer use cases for multidimensional analysis. For example, we presented how a multinational travel agency uses MDA to diagnose error rates per loyalty status to make sure that their premium customers have a perfect software experience.
Professor Beekums
JULY 30, 2017
That’s because all code is technical debt. Developers often try to minimize the amount of technical debt they take on when building software. Many will even try to have “zero” technical debt. It sounds like a worthwhile goal. Technical debt can be extremely costly in the long term so getting rid of it can be extremely advantageous down the line. It isn’t possible to have zero technical debt though. Every single line of it
Dynatrace
SEPTEMBER 7, 2019
Fully automatic deep code monitoring module injection. One of the unique strengths of Dynatrace OneAgent is the fully automated injection of the deep code monitoring module on Windows and Linux. Fully automated deep code monitoring module injection is available for all customers as of OneAgent version 1.175. Fully automatic deep code monitoring is available for all supported AIX versions, except AIX 6.1 Dynatrace news.
DZone
JUNE 3, 2020
testing test automation code test bugs artificial intelligence (ai) hackathon end to end testing code maintenance test codeHow much is it worth to catch more bugs early in your product release process? Depending on where you are in your release process, you might be writing unit or systems tests. But, you need to run end-to-end tests to prove behavior, and quality engineers require a high degree of skill to write end-to-end tests successfully.
Jos
APRIL 6, 2018
We are explicit about our dependencies, so we know what code we need to run to run a specific component. Lazy-loading and bundle splitting can have a huge impact on page performance: less code requested, parsed, and executed. Code Splitting and CSS-in-JS : How CSS-in-JS extends code-splitting and lazy-loading to CSS, SVGs and other resources. When you send the user code that is not needed, you waste resources from your end, and from the user’s end.
TechBeacon Testing
APRIL 25, 2019
Your test code is a mess. You're not quite sure where anything is anymore. The fragility of it is causing your builds to fail. You're hesitant to make any changes for fear of breaking something else. The bottom line is that your tests do not spark joy, as organizing guru Marie Kondo would say. App Dev & Testing, Testing, Application Testing, Special Coverage: STAREAST Conference 2019
Professor Beekums
FEBRUARY 25, 2018
The reaction from one of the developers was simply: “I don’t want to maintain their code.” The worst code is always other people’s code. I recently heard of a situation where a team needs to hire someone since they’re understaffed. I understand this mentality. For most developers, this is simply fact. What is also fact is that very little software of significance gets built by the lone wolf. Building software is a difficult endeavour
Professor Beekums
MAY 19, 2016
Throughout my career as a software engineer, many people have told me that learning to write code is difficult. The real difficulty lies in the fact that most people are taught computer science before they are taught to write code. I challenge this claim. By computer science, I mean fundamental concepts such as the number of bits in an integer or how various pieces of data are stored in memory
Professor Beekums
APRIL 30, 2019
They may spend a good portion of their day around whiteboards with various teams, but they also spend a decent amount of time writing code. They view writing code as beneath them What defines a software architect? It usually means someone has achieved a high level of technical skill. Most of the architects I’ve worked with have been quite good. Occasionally, I meet someone who has let the title go to their head.
HammerDB
MAY 24, 2019
The first step towards this goal is the recently announced move of the HammerDB source code to the TPC-Council GitHub repository. The previous developer owned GitHub repository sm-shaw github repository has been deleted and the TPC-Council repository will be the source code repository for ongoing and future HammerDB development. To understand the difference between the downloadable binaries and the source code view the post on HammerDB Concepts and Architecture.
Professor Beekums
NOVEMBER 27, 2016
Code reviews are seen as an essential part of software development. It makes a lot of sense to say that a programmer should have their work reviewed by another programmer. Authors and journalists have their work reviewed by an editor after all. Humans make mistakes and creators especially get a little tunnel vision when they are focused on making their creations. Having someone else look at it can catch many errors
ScaleOut Software
DECEMBER 10, 2019
The following diagram with 20,000 nodes in a simulated power grid gives you an idea of how many data sources need to be simultaneously tracked and analyzed: The solution to this challenge is to refactor the problem so that application code can ignore the overall complexity of the event stream and focus on using domain-specific expertise to analyze telemetry from a single data source.
ScaleOut Software
DECEMBER 10, 2019
The following diagram with 20,000 nodes in a simulated power grid gives you an idea of how many data sources need to be simultaneously tracked and analyzed: The solution to this challenge is to refactor the problem so that application code can ignore the overall complexity of the event stream and focus on using domain-specific expertise to analyze telemetry from a single data source.
William Bain
DECEMBER 10, 2019
The following diagram with 20,000 nodes in a simulated power grid gives you an idea of how many data sources need to be simultaneously tracked and analyzed: The solution to this challenge is to refactor the problem so that application code can ignore the overall complexity of the event stream and focus on using domain-specific expertise to analyze telemetry from a single data source.
DZone
AUGUST 21, 2019
This system is much older than the PVS-Studio static code analyzer, but no one has tried to apply the analyzer on its code and review the errors. CMake is a cross-platform system for automating software building from source code. By the way, the CMake code has a few warnings from this first set. devops performance programming code quality cpp static code analysis cmake static code analyzer
The Netflix TechBlog
FEBRUARY 13, 2020
Brief overview of image coding formats The JPEG format was introduced in 1992 and is widely popular. This is followed by quantization and entropy coding. It brought a whole range of additional features such as spatial scalability, region of interest coding, range of supported bit-depths, flexible number of color planes, lossless coding, etc. With the motion extension, it was accepted as the video coding standard for digital cinema in 2004.
O'Reilly Software
AUGUST 29, 2018
The O’Reilly Media Podcast: Daniel Krook, IBM developer advocate, on the Call for Code Global Initiative at IBM. In an effort to help the communities of the world be better prepared to handle these tough situations, David Clark Cause launched Call for Code along with IBM as the founding partner. Call for Code is a worldwide, multi-year initiative that challenges developers to solve pressing problems with sustainable software solutions.
Website Optimization
OCTOBER 25, 2018
This article shows how to exclude lower income ZIP codes in Google Ads. For cosmetic dentists, proper targeting is everything in PPC advertising. Cosmetic dentists typically target more affluent clients that can afford their smile makeover services. Marketing cosmetic services to your entire target geography does not make economic sense. A better approach is to only market to geographic areas that can afford your services.
Brendan Gregg
JULY 30, 2017
I recently improved flame graph code coloring. Code-type coloring was a regex hack that took five minutes. My hack was the following eight lines of code: if (defined $type and $type eq "java") { if ($name =~ /::/) { # C++ $type = "yellow"; } elsif ($name =~ m:/:) { # Java (match "/" in path) $type = "green" } else { # system $type = "red"; }. And that's what I coded. I had similar issues with JIT'd code for Node.js.
John McCalpin
JULY 23, 2018
I usually precede the code that I want to test with a “warm-up” loop consisting of at least a few seconds of execution of instructions using the same SIMD width as the code that I want to test. This is even more confusing when you consider vectorization and loop unrolling, which the compiler may change significantly from one compilation to the next as you fiddle with your code. For simple loops, you can look at the assembly code and count instructions.
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