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@jboner
jboner / latency.txt
Last active July 24, 2024 13:22
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
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
@kevin-smets
kevin-smets / iterm2-solarized.md
Last active July 23, 2024 04:22
iTerm2 + Oh My Zsh + Solarized color scheme + Source Code Pro Powerline + Font Awesome + [Powerlevel10k] - (macOS)

Default

Default

Powerlevel10k

Powerlevel10k

@leafsummer
leafsummer / install_pstree
Created May 23, 2016 02:45
install pstree
Linux pstree shows running processes as a tree. The tree is rooted at either pid or init if pid is omitted. If a user name is specified, all process trees rooted at processes owned by that user are shown.
Install pstree
#On Mac OS
brew install pstree
#On Fedora/Red Hat/CentOS
yum install psmisc #using psmisc package for pstree
#On Ubuntu/Debian APT
@peterhellberg
peterhellberg / graceful.go
Last active June 11, 2024 12:27
*http.Server in Go 1.8 supports graceful shutdown. This is a small example.
package main
import (
"context"
"log"
"net/http"
"os"
"os/signal"
"time"
)

Mac users

  1. First, install GNU tar: brew install --with-default-names gnu-tar
  2. Ensure at least 4GB RAM available to Docker for Mac

clone the repo

go get k8s.io/kubernetes && cd $GOPATH/src/k8s.io/kubernetes