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All posts tagged reductions

Loop Optimizations: how does the compiler do it?

Loop Optimizations: how does the compiler do it?

Posted on September 19, 2021March 19, 2022Author Ivica BogosavljevićPosted in Help the Compiler, Performance, Toolchain and Performance2 Replies

We investigate what are the techniques your compiler employs to make your loop run faster.

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  • 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
  • The memory subsystem from the viewpoint of software: how memory subsystem affects software performance 2/3
  • The memory subsystem from the viewpoint of software: how memory subsystem affects software performance 1/3
  • Instruction-level parallelism in practice: speeding up memory-bound programs with low ILP

Recent Posts

  • 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
  • The memory subsystem from the viewpoint of software: how memory subsystem affects software performance 2/3
  • The memory subsystem from the viewpoint of software: how memory subsystem affects software performance 1/3
  • Instruction-level parallelism in practice: speeding up memory-bound programs with low ILP

Recent Comments

  • Ivica Bogosavljević on The quest for the fastest linked list
  • Ivica Bogosavljević on Make your programs run faster by better using the data cache
  • Matthew Tedder on The quest for the fastest linked list
  • etiennemlb on Make your programs run faster by better using the data cache
  • JuYi on Speedscope: visualize what your program is doing and where it is spending time

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