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Subscribe to my newsletter, support me on Patreon or by PayPal donation. I would love to hear your feedback! I wrote this blog series for the second edition of my book titled “Performance Analysis and Tuning on Modern CPUs”. It is open-sourced on Github: perf-book. The book primarily targets mainstream C and C++ developers who want to learn low-level performance engineering, but devs in other lang
Contents: Recap on LBR Getting cycles count with linux perf Application: estimating prefetch window Subscribe to my newsletter, support me on Patreon or by PayPal donation. I feel like writing these days, so powered by this feeling I decided to share another quite useful technique that I sometimes use. Today I will show how you can utilize Intel LBR (Last Branch Record) feature to do cycle-based t
Contents: Utilizing full capacity of the load instructions Performance counters that I use Results Why we have 8 cycles per iteration? Some explanations for this pipeline diagram Utilizing other available ports in parallel Overutilizing ports Additional resources Subscribe to my newsletter, support me on Patreon or by PayPal donation. I continue writing about performance of the processors and toda
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