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Multitime: a small utility to measure your program’s runtime

Multitime: a small utility to measure your program’s runtime

Posted on October 23, 2020November 1, 2020Author Ivica BogosavljevićPosted in Developer Tools, PerformanceLeave a Reply

Multitime is a tool that you can use to repeat a command several times, and get additional information about its runtime: mean, standard deviation etc. Read this short article to get you started,

Lessons in debugging: observe how programs interact with the Linux kernel with STRACE

Lessons in debugging: observe how programs interact with the Linux kernel with STRACE

Posted on July 12, 2020August 16, 2020Author Ivica BogosavljevićPosted in Debugging, Developer ToolsLeave a Reply

There are a subset of problems in software development that can be traced back to system calls or signals. Learn about STRACE, tool that let you trace system calls and signals and that can help you quickly figure out the origin of those problems.

GDB: A quick guide to make your debugging easier

GDB: A quick guide to make your debugging easier

Posted on June 21, 2020July 27, 2020Author Ivica BogosavljevićPosted in Debugging, Developer ToolsLeave a Reply

We will talk about how to profit from some of GDB’s very useful albeit less known features.

FlameGraphs: Understand where your program is spending time

FlameGraphs: Understand where your program is spending time

Posted on June 6, 2020June 26, 2020Author Ivica BogosavljevićPosted in Developer Tools, PerformanceLeave a Reply

Learn about FlameGraphs, a great tool that will help you quickly find slow functions in your program.

MOSH – a simple SSH replacement that works when network conditions are bad

MOSH – a simple SSH replacement that works when network conditions are bad

Posted on May 31, 2020June 26, 2020Author Ivica BogosavljevićPosted in Developer ToolsLeave a Reply

Connection keeps dropping with SSH? Read about mosh, a simple addition to SSH that can keep your connection survive the rough network environment.

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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’?

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