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@InAnimaTe
InAnimaTe / kcc
Last active December 5, 2018 10:53
kubectl context/namespace switcher!
function kcc () {
usage () {
echo -en "Usage: $0 <context> <namespace>\n"
}
result () {
echo -en "-> Context: \e[96m$context\e[0m\n-> Namespace: \e[92m$namespace\n\e[0m"
}
if [ $# -eq 0 ] ; then
## If no options, print the current context/cluster and namespace
context="$(kubectl config current-context 2>/dev/null)"
@andreyvit
andreyvit / tmux.md
Created June 13, 2012 03:41
tmux cheatsheet

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

@jboner
jboner / latency.txt
Last active May 8, 2024 03:00
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