Johny's Software Lab

Johny's Software Lab

Resources on making your system faster, more reliable and easier to debug

  • Home
  • Performance
  • Debugging
  • Reliability
  • Developer Tools
  • Training
  • Contact
  • About us
Menu

All posts tagged high-performance systems

Crash course introduction to parallelism: the algorithms

Crash course introduction to parallelism: the algorithms

Posted on January 4, 2021January 14, 2021Author Ivica BogosavljevićPosted in PerformanceLeave a Reply

When it comes to performance, there are two ways to go: one is to improve the usage of the existing hardware resources, the other is to use the new hardware resources. We already talked a lot about how to increase the performance of your program by better using the existing resources, for example, by decreasing…

Read
Excessive copying in C++ and your program’s speed

Excessive copying in C++ and your program’s speed

Posted on September 26, 2020September 28, 2020Author Ivica BogosavljevićPosted in PerformanceLeave a Reply

We talk about C++ and its weakness for temporary objects and excessive copying. We also give some tips on how to avoid them and make your program faster.

Make your programs run faster: avoid expensive instructions

Make your programs run faster: avoid expensive instructions

Posted on September 13, 2020September 13, 2020Author Ivica BogosavljevićPosted in PerformanceLeave a Reply

We will talk about expensive instructions in modern CPUs and how to avoid them to speed up your program.

The price of dynamic memory: Allocation

The price of dynamic memory: Allocation

Posted on July 25, 2020August 28, 2020Author Ivica BogosavljevićPosted in PerformanceLeave a Reply

We talk about how to speed up your program if your program is taking time to allocate or release memory.

How branches influence the performance of your code and what can you do about it?

How branches influence the performance of your code and what can you do about it?

Posted on July 5, 2020December 31, 2020Author Ivica BogosavljevićPosted in PerformanceLeave a Reply

In this articles we investigate on how branches influence the performance of the code and what can we do to improve the speed of our branchfull code.

Make your programs run faster: avoid function calls

Make your programs run faster: avoid function calls

Posted on June 12, 2020August 29, 2020Author Ivica BogosavljevićPosted in PerformanceLeave a Reply

Function calls are not cheap operations and for time critical code it is better to avoid them. This article explores techniques you can use to avoid function calls thus speeding up your code.

Link Time Optimizations: New Way to Do Compiler Optimizations

Link Time Optimizations: New Way to Do Compiler Optimizations

Posted on May 27, 2020June 26, 2020Author Ivica BogosavljevićPosted in Memory Footprint, PerformanceLeave a Reply

Traditional compilation-linking cycle generates binaries that work fine, but in case you need more speed, you need to learn about link time optimizations. Here we talk about what link time optimizations are, how to enable them and what improvements to expect.

Make your programs run faster by better using the data cache

Make your programs run faster by better using the data cache

Posted on May 22, 2020July 4, 2020Author Ivica BogosavljevićPosted in PerformanceLeave a Reply

We investigate how the data cache influences the performance of your program, talk about ways for you to write faster programs by better leveraging the data cache.

Like what you’re reading? Follow us!

Recent posts

  • 2-minute read: How is Big O notation relevant on modern systems?
  • Crash course introduction to parallelism: the algorithms
  • Making your program run faster in a multithreaded environment
  • 2-minute read: the Magic Touch of Parallel Algorithms
  • 2-minute read: What is faster, std::endl or ‘\n’?

About me

Johny’s Software Lab LLC is a software development consulting house specializing in software performance. If you or your developer team needs help on how to make your C or C++ program run faster, or you are missing out important deadlines because of problems with performance, this is the right place to be.

Recent Posts

  • 2-minute read: How is Big O notation relevant on modern systems?
  • Crash course introduction to parallelism: the algorithms
  • Making your program run faster in a multithreaded environment
  • 2-minute read: the Magic Touch of Parallel Algorithms
  • 2-minute read: What is faster, std::endl or ‘\n’?

Recent Comments

  • Rama on 2-minute read: the Magic Touch of Parallel Algorithms
  • Ivica Bogosavljević on Process polymorphic classes in lightning speed
  • Zekses on Process polymorphic classes in lightning speed
  • Ivica Bogosavljević on Process polymorphic classes in lightning speed
  • Zekses on Process polymorphic classes in lightning speed

Archives

  • January 2021
  • December 2020
  • November 2020
  • October 2020
  • September 2020
  • August 2020
  • July 2020
  • June 2020
  • May 2020

Categories

  • Debugging
  • Developer Tools
  • Memory Footprint
  • Performance
  • Reliability

Meta

  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org

©2021 Johny's Software Lab | Theme by SuperbThemes.Com