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spikegee / gist:ae044abdfaad8431f5f27114f63ea1e8
Last active February 20, 2024 21:25 — forked from Faq/gist:8821c5fd18dd01da4f80d7435158096d
Install chrome & chromedriver for Docker image 2022
Source: https://gist.github.com/varyonic/dea40abcf3dd891d204ef235c6e8dd79
Change log:
1. replaced "dl-ssl.google.com" with "dl.google.com" according https://www.google.com/linuxrepositories/
2. replaced "apt-key" as "Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8))."
3. use https
Julien updates:
1. since this does not work for recent version of chrome, chrome version must be selected rather than the latest version taken.
I had to match a version of the chrome driver here: https://chromedriver.storage.googleapis.com/
@spikegee
spikegee / latency.markdown
Created April 3, 2021 10:30 — 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

:helper_removeOutQuotes
SETLOCAL ENABLEDELAYEDEXPANSION
set variableName=%1
set variableValue=!%variableName%!
set "variableValue=!variableValue:~1,-1!"
endlocal & call Set "%~1=%variableValue%"
goto:eof
rem eg: call :helper_getEchoedValue !cmd! result
:helper_getEchoedValue
<iframe width="560" height="315" src="https://www.youtube.com/embed/dQw4w9WgXcQ?controls=0&amp;autoplay=1&start=85&mute=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>