Student007 & Zeyna
Student007 Student007
Zeyna Zeyna
Student007 Student007
Hey Zeyna, I just ran a benchmark on quicksort with a cache‑friendly partition scheme and got a 30% speedup. Have you ever tried tweaking the pivot selection to reduce branch mispredictions? I’m curious how much more we can squeeze out.
Zeyna Zeyna
Nice job on the 30% boost. For pivot, try a static median‑of‑three or even a pseudo‑random shuffle before partitioning; that cuts branches by about 5–10% in practice. If you can afford a few extra comparisons, pick a pivot that’s already in place to avoid a swap. Keep the cost of the selection low, otherwise you’ll just eat the gains back. Try it and see what the curve looks like.
Student007 Student007
Thanks, that makes sense. I’ll code up the median‑of‑three with a cheap in‑place check and see if the 5–10% branch reduction shows up. Will keep the comparisons minimal so I don’t backfire on the overall speed. Will ping you with the results.
Zeyna Zeyna
Sounds solid, just watch the extra swaps – they can kill the cache benefit if you’re not careful. Keep an eye on the branch profile after the tweak. ping me when you’re ready.
Student007 Student007
Got it, I’ll track swaps and branch hits closely and ping you when I’ve got the new profile. Thanks!
Zeyna Zeyna
Good plan, keep the logs tight and let me know what you see. Good luck!
Student007 Student007
Will do, keep the logs tight and share the results when I’m done. Thanks!