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hongda3141 / gist:59faa55f698c7c2ae47c5d31cf076880
Created October 8, 2022 02:15 — forked from rxaviers/gist:7360908
Complete list of github markdown emoji markup

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hongda3141 / 0 Linux-On-MBP-Late-2016.md
Created September 24, 2022 13:37 — forked from roadrunner2/0 Linux-On-MBP-Late-2016.md
Linux on MacBook Pro Late 2016 and Mid 2017 (with Touchbar)

Introduction

This is about documenting getting Linux running on the late 2016 and mid 2017 MPB's; the focus is mostly on the MacBookPro13,3 and MacBookPro14,3 (15inch models), but I try to make it relevant and provide information for MacBookPro13,1, MacBookPro13,2, MacBookPro14,1, and MacBookPro14,2 (13inch models) too. I'm currently using Fedora 27, but most the things should be valid for other recent distros even if the details differ. The kernel version is 4.14.x (after latest update).

The state of linux on the MBP (with particular focus on MacBookPro13,2) is also being tracked on https://github.com/Dunedan/mbp-2016-linux . And for Ubuntu users there are a couple tutorials (here and here) focused on that distro and the MacBook.

Note: For those who have followed these instructions ealier, and in particular for those who have had problems with the custom DSDT, modifying the DSDT is not necessary anymore - se

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hongda3141 / latency.markdown
Created January 4, 2022 06:53 — forked from hellerbarde/latency.markdown
Latency numbers every programmer should know

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 Β΅s
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 Β΅s
SSD random read ........................ 150,000 ns  = 150 Β΅s

Read 1 MB sequentially from memory ..... 250,000 ns = 250 Β΅s