SIMD instructions lowering CPU frequency

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More Related Contents:

  1. What Every Programmer Should Know About Memory?
  2. How are x86 uops scheduled, exactly?
  3. Deoptimizing a program for the pipeline in Intel Sandybridge-family CPUs
  4. How much of ‘What Every Programmer Should Know About Memory’ is still valid?
  5. Can compiler optimization introduce bugs?
  6. What branch misprediction does the Branch Target Buffer detect?
  7. Does Skylake need vzeroupper for turbo clocks to recover after a 512-bit instruction that only reads a ZMM register, writing a k mask?
  8. Do 128bit cross lane operations in AVX512 give better performance?
  9. What is the best way to set a register to zero in x86 assembly: xor, mov or and?
  10. C loop optimization help for final assignment (with compiler optimization disabled)
  11. Why is Skylake so much better than Broadwell-E for single-threaded memory throughput?
  12. How do you test running time of VBA code?
  13. Disable all optimization options in GCC
  14. 32-byte aligned routine does not fit the uops cache
  15. What C/C++ compiler can use push pop instructions for creating local variables, instead of just increasing esp once?
  16. Which Intel microarchitecture introduced the ADC reg,0 single-uop special case?
  17. Why does the Java API use int instead of short or byte?
  18. Can modern x86 implementations store-forward from more than one prior store?
  19. Loop unrolling to achieve maximum throughput with Ivy Bridge and Haswell
  20. Unexpectedly poor and weirdly bimodal performance for store loop on Intel Skylake
  21. Why can’t my ultraportable laptop CPU maintain peak performance in HPC
  22. How to do batching without UBOs?
  23. How can I mitigate the impact of the Intel jcc erratum on gcc?
  24. How are cache memories shared in multicore Intel CPUs?
  25. Count each bit-position separately over many 64-bit bitmasks, with AVX but not AVX2
  26. Return address prediction stack buffer vs stack-stored return address?
  27. Relative performance of x86 inc vs. add instruction
  28. Are load ops deallocated from the RS when they dispatch, complete or some other time?
  29. Can I hint the optimizer by giving the range of an integer?
  30. How does the GCC implementation of modulo (%) work, and why does it not use the div instruction?

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