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@jboner
jboner / latency.txt
Last active November 18, 2024 08:23
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
@figassis
figassis / randomusphones.json
Created December 2, 2018 13:58
1000 valid us phone numbers for testing
["+1-418-543-8090","+1-587-530-2271","+1-404-724-1937","+1-443-307-1473","+1-329-420-1792","+1-770-212-6011","+1-473-522-7496","+1-477-962-3907","+1-478-797-3175","+1-948-914-6246","+1-268-763-5180","+1-369-441-8619","+1-501-926-2756","+1-223-919-0967","+1-328-857-2537","+1-636-613-5429","+1-547-538-9848","+1-523-317-7761","+1-557-680-6290","+1-905-546-5021","+1-975-999-8212","+1-358-342-3321","+1-669-937-7112","+1-506-676-9834","+1-510-518-1673","+1-282-995-0297","+1-667-407-8456","+1-396-518-2124","+1-528-705-6591","+1-395-288-8024","+1-390-949-5954","+1-437-295-3568","+1-227-799-6356","+1-703-363-8155","+1-618-720-3464","+1-557-394-8274","+1-237-257-1580","+1-623-416-0089","+1-533-762-6549","+1-299-471-0213","+1-790-548-2248","+1-469-253-5139","+1-580-303-6087","+1-507-639-8400","+1-269-771-0214","+1-645-818-7021","+1-436-974-4859","+1-952-660-7350","+1-493-885-4329","+1-697-392-0705","+1-744-865-4521","+1-887-526-1105","+1-816-630-9743","+1-496-717-7301","+1-212-475-2813","+1-222-993-6707","+1-868-574-867
@prnvbn
prnvbn / background.go
Created August 13, 2021 08:33
A task running periodically in the background in Golang.
ticker := time.NewTicker(70 * time.Second)
quit := make(chan struct{})
go func() {
for {
select {
case <-ticker.C:
// do the task here
case <-quit:
ticker.Stop()
return
@pablodz
pablodz / install_docker_in_ubuntu_21-10.sh
Last active June 17, 2023 20:58
Install Docker in Ubuntu 21.10, Install Dockercompose on Ubuntu 21.10
# [🟨OPTIONAL] Uninstall old docker versions
sudo apt-get remove docker docker-engine docker.io containerd runc
# Refresh latest version
sudo apt-get update
# Install pre-req
sudo apt-get install -y \
apt-transport-https \
ca-certificates \
curl \
gnupg \
@x43x61x69
x43x61x69 / vnc_install.sh
Last active October 10, 2024 20:49
Steam Deck VNC Installation
#!/bin/bash
#
# Script for installing x11vnc on Steam Deck.
#
# Install:
#
# sh -c "$(curl -fsSL https://gist.githubusercontent.com/x43x61x69/9a5a231a25426e8a2cc0f7c24cfdaed9/raw/vnc_install.sh?$RANDOM)"
#
# This will modify root filesystem so it will probably get
# overwrite on system updates but is totally ok executing
package views
import (
"context"
"fmt"
"log"
"net/http"
"strings"
"time"