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sergeykhegay / latency.txt
Created February 1, 2017 22:41 — forked from jboner/latency.txt
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers
--------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@sergeykhegay
sergeykhegay / Sergey.GSoC-2016.FinalEvaluation.txt
Last active August 19, 2016 06:44
A post for final evaluation of my work for Nmap Security Scanner during GSoC 2016.
As part of the Google Summer of Code 2016, I was lucky enough to contribute
to Nmap Security Scanner open source project. It was not easy all along, the
were some difficulties and frustrating moments, but overall I got a very
positive experience.
I would like to thank my mentor, Fotis Chantzis, community, and all the
developers who provided helpful feedback and suggestions, Patrick Donnelly,
Daniel Miller, and, my fellow GSoC participant, Vincent Dumont.
During the summer I worked on two major tasks: improving brute.lua and adding