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daotoad / latency.markdown
Created November 13, 2019 21:53 — 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 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

@daotoad
daotoad / init.vim
Created August 20, 2019 01:07
Vim Settings
" Set this variable to 1 to fix files when you save them.
let g:ale_fix_on_save = 1
highlight ALEWarning ctermbg=DarkMagenta
highlight ALEError ctermbg=DarkBlue
" Enable completion where available.
" This setting must be set before ALE is loaded.
let g:ale_completion_enabled = 1
let g:ale_fixers = {
@daotoad
daotoad / all.kids
Last active December 16, 2018 10:52
Getting to Know Perl6 From the Command Line: An Article for the 2018 Perl6 Advent Calendar
1234,Bobby Smith
1235,Rosa Felix
1236,Ramesh Patil
1245,Virginia Ryder
1356,Snively Witherspoon
1358,Burnedette Down
1366,Evelyn Tent