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All posts in Kernel Space and Performance

Debugging performance issues in kernel space: minor fault and major faults

Debugging performance issues in kernel space: minor fault and major faults

Posted on July 6, 2021March 19, 2022Author Ivica BogosavljevićPosted in Kernel Space and Performance, PerformanceLeave a Reply

In this post we talk about major and minor faults as performance issues that your program can experience, we explain what they are, how to detect them and how to fix them,

Debugging performance issues in kernel space: system calls

Debugging performance issues in kernel space: system calls

Posted on May 30, 2021March 19, 2022Author Ivica BogosavljevićPosted in 2 Minute Reads, Kernel Space and Performance, PerformanceLeave a Reply

We talk about how to detect if your program is spending a lot of time in kernel mode (system mode) and investigate ways to speed them up.

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  • Decreasing the Number of Memory Accesses 1/2
  • Frugal Programming: Saving Memory Subsystem Bandwidth
  • For Software Performance, the Way Data is Accessed Matters!
  • What is faster: vec.emplace_back(x) or vec[x] ?
  • When an instruction depends on the previous instruction depends on the previous instructions… : long instruction dependency chains and performance

Recent Posts

  • Decreasing the Number of Memory Accesses 1/2
  • Frugal Programming: Saving Memory Subsystem Bandwidth
  • For Software Performance, the Way Data is Accessed Matters!
  • What is faster: vec.emplace_back(x) or vec[x] ?
  • When an instruction depends on the previous instruction depends on the previous instructions… : long instruction dependency chains and performance

Recent Comments

  • Ivica Bogosavljević on Make your programs run faster by better using the data cache
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  • Ivica Bogosavljević on Decreasing the Number of Memory Accesses 1/2
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  • Ivica Bogosavljević on Decreasing the Number of Memory Accesses 1/2

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