INDUSTRY INSIGHTS YOUR PEERS ARE READING
App Dev & Testing, Testing, Application Programming Interface (API Have you ever gone to a public swimming pool and noticed a sign stating the maximum occupancy limit? Those limits were put in place to ensure public safety. MORE
python programming scaling performaceAs a programmer we have written codes that ideally solves a problem, but do we take note of the performance when it comes to solving a problem, or do we just feel comfortable with “My code works?" MORE
A lot of attention is given to programming languages. Does it really matter what programming languages you know though? Many companies list positions such as “PHP Developer” or “Java Programmer”. Those interested in learning how to code often ask what language they should learn. MORE
To address this problem, we devised a Usability Testing Program — which, as a smaller company — presented us with some interesting challenges. Challenge 1: Not enough dedicated resources available to run the Usability Testing Program. MORE
Parallel programming solves big numerical problems by dividing them into smaller sub-tasks, and hence reduces the overall computational time on multi-processor and/or multi-core machines. In a previous post we have discussed the scaling of parallel programs. MORE
In the previous post we introduced the Pool class of the multiprocessing module. In this post we continue on and introduce the Process class , which makes it possible to have direct control over individual processes. A process can be created by providing a target function and its input arguments to the Process constructor. The process can then be started with the start method and ended using the join method. Below is a very simple example that prints the square of a number. MORE
Python has long been a popular programming language in the networking space because it’s an intuitive language that allows engineers to quickly solve networking problems. programming python netflixoss data-science netflix MORE
Null Safety One of the most common pitfalls of many programming languages including Java, is that accessing a null reference would result in a null reference exception. software-development kotlin android java programmingWhat Kotlin has that Java does not. MORE
While working on the implementation of the MPI version of the STREAM benchmark, I realized that there were some subtleties in timing that could easily lead to inaccurate and/or misleading results. This post is a transcription of my notes as I looked at the issues… Primary requirement: I want a measure of wall clock time that is guaranteed to start before any rank does work and to end after all ranks have finished their work. MORE
We’ve recently joined forces with Hackerone , the industry leader in external bug bounty programs. Wait, what is a bug bounty program? They can then browse for all public bug bounty programs to participate in. What’s the long-term plan for the program? MORE
In part 1 of this post , we introduced the mpi4py module (MPI for Python) which provides an object-oriented interface for Python resembling the message passing interface (MPI) and enables Python programs to exploit multiple processors on multiple compute nodes. As we mentioned in part 1 of this post , collective communication methods are very useful in parallel programming. MORE
The supported programming languages for PostgreSQL include.Net, C, C++, Delphi, Java, JavaScript (Node.js), Perl, PHP, Python and Tcl, but PostgreSQL can support many server-side procedural languages through its available extensions. We found that Java is the most popular programming language for PostgreSQL, being leveraged by 31.1% Python was the second most popular programming language used with PostgreSQL, coming in close at an average of 28.9% MORE
The design of a programming (or data) model not only makes certain problems easier (or harder) to solve, but also makes certain classes of bugs easier (or harder) to create, detect, and subsequently fix. Go makes concurrent programming easier and less error-prone. MORE
These things are also good to have in the tools we use to build software, especially programming languages. When we talk about UX, we often refer to the UX of the products we build and use. We want our products to be easy to use. Interactions should be quick. MORE
Architecture Cloud Featured Features Performance Products Programming Techniques digital twin real-time analytics real-time digital twin scalability stream processing streaming service MORE
The first release of the program took place in 2000. devops performance programming code quality cpp static code analysis cmake static code analyzerCMake is a cross-platform system for automating project builds. MORE
App Dev & Testing, Testing, Open Source, Integration Testing, Application Programming Interface (API APIs have become the adhesive that holds the modern web together, reflecting the changing nature of web apps. MORE
Programming with Vert.x performance java programming vert.x This article is the first in a series of three articles which share my experience with troubleshooting the performance of Vert.x applications. The first article provides an overview of the Vert.x MORE
In previous posts we have introduced the multiprocessing module which makes it possible to parallelize Python programs on shared memory systems. This module provides an object-oriented interface that resembles the message passing interface (MPI) , and hence allows Python programs to exploit multiple processors on multiple compute nodes. Now we can write our first Python program with mpi4py. MORE
When we kicked off our user research program, our goal was to generate objective data to guide our UX decisions. While designing this program, our limited set of users was something we had to consider. To build momentum, we kicked off the program using internal stakeholders as our test subjects. The post Bootstrapping a Usability Testing Program appeared first on Tasktop Blog. MORE
A few months ago, I claimed that naming is the hardest programming problem. The true hardest problem is one that impacts every developer at every skill level, across all programming languages, regardless of experience. It is equally applicable across all programming disciplines. The hardest problem in programming is this: performance tight coupling weak couplingI was wrong. MORE
The purpose of this probe was to study the Mars climate, atmosphere, and surface changes and to act as the communications relay in the Mars Surveyor '98 program for Mars Polar Lander. Space Software Development Programming Software Architecture MORE
As a tribute in honor of Dennis Ritchie’s passing , I’d like to invite you to share your thoughts in this post’s comments about your first C program – either the code if you remember it approximately, or a story about when you wrote it. MORE
Investigative Reporting Performance Programming uiforetw xperf ETW ntfs wpaI seem to have a habit of writing about super powerful machines whose many cores are laid low by misuse of locks. It’s that again. But this one seems particularly impressive. MORE
In many ways, the digital twin model is just an application of the principle of encapsulation from object-oriented programming to the data sources and higher-level controllers within a real-time, stream-processing system. By Dr. William L. MORE
This means that heap snapshots are great for finding leaks in long running programs. Documentation Performance Programming uiforetw xperf heap snapshots memoryI’ve recently started using heap snapshots on Windows to track heap allocations. MORE
Investigative Reporting Performance Programming uiforetw xperf GDI process shutdown UserCritLast week I wrote about the performance consequences of inadvertently loading gdi32.dll into processes that are created and destroyed at very high rates. MORE
Architecture Featured Performance Programming Techniques Solutions Technology data-parallel computing distributed caching high availability in-memory computing in-memory data grid object-oriented programming scalability ScaleOut ComputeServer MORE
App Verifier causes your program to run more slowly, both because allocations are now more expensive and because the page-aligned allocations mean that your CPU’s cache is mostly neutered. Code Reliability Investigative Reporting Performance Programming Application Verifier crashing pageheap MORE
performance api memory cpu java (programming lang. What happens when you're out of memory? You may also like: Java Out of Memory Heap Analysis. Recently we experienced an interesting production problem. This application was running on multiple AWS EC2 instances behind Elastic Load Balancer. MORE
When I investigated the initial bug I wrote a program ( ProcessCreateTests ) that created 1,000 processes and then killed them all in parallel. This reproduced the hang, and when Microsoft fixed the bug I used test program to validate the fix – a video showing how can be found here. MORE
Beyond providing a powerful semantic model for stateful stream processing, digital twins also offer advantages for software engineering because they can take advantage of well understood object-oriented programming techniques. MORE
caching software-architecture programming open-source software-engineeringBy Drew Koszewnik This is the story about how the Content Setup Engineering team used Hollow, a Netflix OSS technology, to re-architect and simplify an essential component in our content pipeline?—?delivering MORE
Python is a powerful and flexible programming language used by millions of developers around the world to build their applications. It comes as no surprise that Python developers commonly leverage MongoDB hosting , the most popular NoSQL database , for their deployments due to its flexible nature and lack of schema requirements. So, what’s the best way to use MongoDB with Python? MORE
The Working Set Model for Program Behavior , Peter J. This weekend we go back in time all the way to the beginning of operating systems research. In the first SOSP conference in 1967 there were several papers that laid the foundation for the development of structured operating systems. MORE
Architecture Cloud Featured Performance Programming Techniques Technology digital twin in-memory computing in-memory data grid object-oriented programming real-time analytics scalable speedup ScaleOut StreamServer stream processing MORE
Investigative Reporting Performance Programming xperf FileSystemWatcher notifications WindowsWindows has long had a reputation for slow file operations and slow process creation. Have you ever wanted to make these operations even slower? MORE
Digital twin models for stateful stream-processing have evolved from concepts largely unrelated to object-oriented programming, in particular, product life-cycle management and industrial IoT (where they are often called device twins ). MORE
GB of page/non-paged pool, few processes running, and no process using anywhere near enough to explain where the memory had gone: My machine has 96 GB of RAM – lucky me – and when I don’t have any programs running I think it’s reasonable to hope that I’d have at least half of it available. MORE
The next step was a custom C++ program that opened the just-linked exe and called FlushFileBuffers on it. It’s a Control Flow Guard violation, meaning that the OS thinks that your program is being exploited by bad people to do an illegal indirect function call. MORE
tutorial performance integration docker java (programming lang The popularity of microservices and the use of third-party services for non-business critical features have drastically increased the number of integrations that make up the modern application. MORE
Tamar Eilam offers an overview of cloud-native programming and outlines a path toward the unification of the cloud programming model. Continue reading The future of cloud-native programming MORE
HackPPL: a universal probabilistic programming language Ai et al., The Hack programming language, as the authors proudly tell us, is “ a dominant web development language across large technology firms with over 100 million lines of production code.” MORE
Sometimes I look back on my life and wonder what it would have been like if I had never started programming. Obviously my career would be different, but I believe that programming has fundamentally changed how I think. MORE
Programming Related Topics DZone
JULY 3, 2019
python programming scaling performaceAs a programmer we have written codes that ideally solves a problem, but do we take note of the performance when it comes to solving a problem, or do we just feel comfortable with “My code works?"
Dynatrace
JULY 2, 2019
We’ve recently joined forces with Hackerone , the industry leader in external bug bounty programs. Wait, what is a bug bounty program? They can then browse for all public bug bounty programs to participate in. What’s the long-term plan for the program?
The Morning Paper
OCTOBER 17, 2019
HackPPL: a universal probabilistic programming language Ai et al., The Hack programming language, as the authors proudly tell us, is “ a dominant web development language across large technology firms with over 100 million lines of production code.”
ScaleOut Software
SEPTEMBER 20, 2018
Digital twin models for stateful stream-processing have evolved from concepts largely unrelated to object-oriented programming, in particular, product life-cycle management and industrial IoT (where they are often called device twins ).
DZone
AUGUST 9, 2019
A few months ago, I claimed that naming is the hardest programming problem. The true hardest problem is one that impacts every developer at every skill level, across all programming languages, regardless of experience. It is equally applicable across all programming disciplines. The hardest problem in programming is this: performance tight coupling weak couplingI was wrong.
O'Reilly Software
FEBRUARY 5, 2019
Tamar Eilam offers an overview of cloud-native programming and outlines a path toward the unification of the cloud programming model. Continue reading The future of cloud-native programming
Tasktop
AUGUST 8, 2019
When we kicked off our user research program, our goal was to generate objective data to guide our UX decisions. While designing this program, our limited set of users was something we had to consider. To build momentum, we kicked off the program using internal stakeholders as our test subjects. The post Bootstrapping a Usability Testing Program appeared first on Tasktop Blog.
PDC
FEBRUARY 13, 2019
Parallel programming solves big numerical problems by dividing them into smaller sub-tasks, and hence reduces the overall computational time on multi-processor and/or multi-core machines. In a previous post we have discussed the scaling of parallel programs.
Professor Beekums
JANUARY 21, 2019
These things are also good to have in the tools we use to build software, especially programming languages. When we talk about UX, we often refer to the UX of the products we build and use. We want our products to be easy to use. Interactions should be quick.
PDC
NOVEMBER 6, 2019
In part 1 of this post , we introduced the mpi4py module (MPI for Python) which provides an object-oriented interface for Python resembling the message passing interface (MPI) and enables Python programs to exploit multiple processors on multiple compute nodes. As we mentioned in part 1 of this post , collective communication methods are very useful in parallel programming.
PDC
AUGUST 2, 2019
In previous posts we have introduced the multiprocessing module which makes it possible to parallelize Python programs on shared memory systems. This module provides an object-oriented interface that resembles the message passing interface (MPI) , and hence allows Python programs to exploit multiple processors on multiple compute nodes. Now we can write our first Python program with mpi4py.
Professor Beekums
NOVEMBER 19, 2016
Sometimes I look back on my life and wonder what it would have been like if I had never started programming. Obviously my career would be different, but I believe that programming has fundamentally changed how I think.
John McCalpin
MARCH 4, 2019
While working on the implementation of the MPI version of the STREAM benchmark, I realized that there were some subtleties in timing that could easily lead to inaccurate and/or misleading results. This post is a transcription of my notes as I looked at the issues… Primary requirement: I want a measure of wall clock time that is guaranteed to start before any rank does work and to end after all ranks have finished their work.
PDC
MARCH 8, 2019
In the previous post we introduced the Pool class of the multiprocessing module. In this post we continue on and introduce the Process class , which makes it possible to have direct control over individual processes. A process can be created by providing a target function and its input arguments to the Process constructor. The process can then be started with the start method and ended using the join method. Below is a very simple example that prints the square of a number.
Sutter's Mill
OCTOBER 16, 2011
As a tribute in honor of Dennis Ritchie’s passing , I’d like to invite you to share your thoughts in this post’s comments about your first C program – either the code if you remember it approximately, or a story about when you wrote it.
Tasktop
AUGUST 13, 2019
To address this problem, we devised a Usability Testing Program — which, as a smaller company — presented us with some interesting challenges. Challenge 1: Not enough dedicated resources available to run the Usability Testing Program.
Scalegrid
OCTOBER 7, 2019
The supported programming languages for PostgreSQL include.Net, C, C++, Delphi, Java, JavaScript (Node.js), Perl, PHP, Python and Tcl, but PostgreSQL can support many server-side procedural languages through its available extensions. We found that Java is the most popular programming language for PostgreSQL, being leveraged by 31.1% Python was the second most popular programming language used with PostgreSQL, coming in close at an average of 28.9%
Scalegrid
MAY 2, 2019
Python is a powerful and flexible programming language used by millions of developers around the world to build their applications. It comes as no surprise that Python developers commonly leverage MongoDB hosting , the most popular NoSQL database , for their deployments due to its flexible nature and lack of schema requirements. So, what’s the best way to use MongoDB with Python?
The Netflix TechBlog
APRIL 29, 2019
Python has long been a popular programming language in the networking space because it’s an intuitive language that allows engineers to quickly solve networking problems. programming python netflixoss data-science netflix
DZone
SEPTEMBER 25, 2019
performance api memory cpu java (programming lang. What happens when you're out of memory? You may also like: Java Out of Memory Heap Analysis. Recently we experienced an interesting production problem. This application was running on multiple AWS EC2 instances behind Elastic Load Balancer.
All Things Distributed
JUNE 12, 2015
The Working Set Model for Program Behavior , Peter J. This weekend we go back in time all the way to the beginning of operating systems research. In the first SOSP conference in 1967 there were several papers that laid the foundation for the development of structured operating systems.
DZone
AUGUST 6, 2019
tutorial performance integration docker java (programming lang The popularity of microservices and the use of third-party services for non-business critical features have drastically increased the number of integrations that make up the modern application.
The Netflix TechBlog
JULY 12, 2019
caching software-architecture programming open-source software-engineeringBy Drew Koszewnik This is the story about how the Content Setup Engineering team used Hollow, a Netflix OSS technology, to re-architect and simplify an essential component in our content pipeline?—?delivering
DZone
JULY 15, 2019
Programming with Vert.x performance java programming vert.x This article is the first in a series of three articles which share my experience with troubleshooting the performance of Vert.x applications. The first article provides an overview of the Vert.x
The Morning Paper
MAY 16, 2019
The design of a programming (or data) model not only makes certain problems easier (or harder) to solve, but also makes certain classes of bugs easier (or harder) to create, detect, and subsequently fix. Go makes concurrent programming easier and less error-prone.
DZone
AUGUST 21, 2019
The first release of the program took place in 2000. devops performance programming code quality cpp static code analysis cmake static code analyzerCMake is a cross-platform system for automating project builds.
TechBeacon Testing
JUNE 11, 2019
App Dev & Testing, Testing, Open Source, Integration Testing, Application Programming Interface (API APIs have become the adhesive that holds the modern web together, reflecting the changing nature of web apps.
TechBeacon Testing
OCTOBER 10, 2019
App Dev & Testing, Testing, Application Programming Interface (API Have you ever gone to a public swimming pool and noticed a sign stating the maximum occupancy limit? Those limits were put in place to ensure public safety.
ScaleOut Software
AUGUST 18, 2018
Architecture Cloud Featured Performance Programming Techniques Technology digital twin in-memory computing in-memory data grid object-oriented programming real-time analytics scalable speedup ScaleOut StreamServer stream processing
ScaleOut Software
OCTOBER 16, 2019
Architecture Cloud Featured Features Performance Products Programming Techniques digital twin real-time analytics real-time digital twin scalability stream processing streaming service
ScaleOut Software
JUNE 29, 2018
In many ways, the digital twin model is just an application of the principle of encapsulation from object-oriented programming to the data sources and higher-level controllers within a real-time, stream-processing system. By Dr. William L.
ScaleOut Software
JULY 27, 2018
Architecture Featured Performance Programming Techniques Solutions Technology data-parallel computing distributed caching high availability in-memory computing in-memory data grid object-oriented programming scalability ScaleOut ComputeServer
Randon ASCII
OCTOBER 27, 2019
This means that heap snapshots are great for finding leaks in long running programs. Documentation Performance Programming uiforetw xperf heap snapshots memoryI’ve recently started using heap snapshots on Windows to track heap allocations.
Randon ASCII
OCTOBER 15, 2018
App Verifier causes your program to run more slowly, both because allocations are now more expensive and because the page-aligned allocations mean that your CPU’s cache is mostly neutered. Code Reliability Investigative Reporting Performance Programming Application Verifier crashing pageheap
Randon ASCII
FEBRUARY 25, 2018
The next step was a custom C++ program that opened the just-linked exe and called FlushFileBuffers on it. It’s a Control Flow Guard violation, meaning that the OS thinks that your program is being exploited by bad people to do an illegal indirect function call.
Software Architecture
APRIL 8, 2018
Null Safety One of the most common pitfalls of many programming languages including Java, is that accessing a null reference would result in a null reference exception. software-development kotlin android java programmingWhat Kotlin has that Java does not.
Randon ASCII
DECEMBER 3, 2018
When I investigated the initial bug I wrote a program ( ProcessCreateTests ) that created 1,000 processes and then killed them all in parallel. This reproduced the hang, and when Microsoft fixed the bug I used test program to validate the fix – a video showing how can be found here.
Randon ASCII
OCTOBER 20, 2019
Investigative Reporting Performance Programming uiforetw xperf ETW ntfs wpaI seem to have a habit of writing about super powerful machines whose many cores are laid low by misuse of locks. It’s that again. But this one seems particularly impressive.
Randon ASCII
FEBRUARY 11, 2018
GB of page/non-paged pool, few processes running, and no process using anywhere near enough to explain where the memory had gone: My machine has 96 GB of RAM – lucky me – and when I don’t have any programs running I think it’s reasonable to hope that I’d have at least half of it available.
cdemi
DECEMBER 16, 2017
The purpose of this probe was to study the Mars climate, atmosphere, and surface changes and to act as the communications relay in the Mars Surveyor '98 program for Mars Polar Lander. Space Software Development Programming Software Architecture
Randon ASCII
DECEMBER 9, 2018
Investigative Reporting Performance Programming uiforetw xperf GDI process shutdown UserCritLast week I wrote about the performance consequences of inadvertently loading gdi32.dll into processes that are created and destroyed at very high rates.
ScaleOut Software
MAY 4, 2018
Beyond providing a powerful semantic model for stateful stream processing, digital twins also offer advantages for software engineering because they can take advantage of well understood object-oriented programming techniques.
Randon ASCII
APRIL 17, 2018
Investigative Reporting Performance Programming xperf FileSystemWatcher notifications WindowsWindows has long had a reputation for slow file operations and slow process creation. Have you ever wanted to make these operations even slower?
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