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@campoy
campoy / letitfail.go
Last active January 6, 2024 07:26
This example shows how to have a set of goroutines running concurrently and processing requests. Panics from goroutines are recovered and the worker is restarted. You can download it and run it directly using `go run letitfail.go`
package main
import (
"bufio"
"fmt"
"os"
"time"
)
const numWorkers = 3
@igrigorik
igrigorik / drive-appscript.js
Last active September 13, 2024 07:27
Sample BigQuery queries for the HTTP Archive dataset.
function onOpen() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var menuEntries = [ {name: "Run Query", functionName: "runQuery"} ];
ss.addMenu("HTTP Archive + BigQuery", menuEntries);
}
function runQuery() {
var projectNumber = 'httparchive';
var sheet = SpreadsheetApp.getActiveSheet();
@icholy
icholy / gobreak.sh
Last active December 16, 2015 19:18
Shell script to simplify setting GDB breakpoints
# Demo http://ascii.io/a/3019
# build
gdbb () {
# build with debug flags
go build -gcflags "-N -l" -o out
# make sure the build didn't fail
if [ $? != 0 ]; then return; fi
@parkghost
parkghost / profilingtool.go
Last active January 3, 2023 10:47
a toolkit to help profiling go programmes
package main
import (
"fmt"
"log"
"os"
"runtime"
"runtime/debug"
"runtime/pprof"
"strconv"
@artisonian
artisonian / .gitignore
Last active March 21, 2024 20:13
go-eventsource
eventsource
go-eventsource
client/client
@jgeurts
jgeurts / install-graphite-ubuntu-12.04.sh
Created July 14, 2012 16:36 — forked from tkoeppen/install-graphite-ubuntu-10.04.sh
Install Graphite 0.9.10 on Ubuntu 12.04
####################################
# BASIC REQUIREMENTS
# http://graphite.wikidot.com/installation
# http://geek.michaelgrace.org/2011/09/how-to-install-graphite-on-ubuntu/
# Last tested & updated 10/13/2011
####################################
cd
sudo apt-get update
sudo apt-get upgrade
@chrisvest
chrisvest / Notes.md
Created June 14, 2012 20:56 — forked from rednaxelafx/JDK5u22_client.log
PrintCompilation on different versions of HotSpot VM

About PrintCompilation

This note tries to document the output of PrintCompilation flag in HotSpot VM. It was originally intended to be a reply to a blog post on PrintCompilation from Stephen Colebourne. It's kind of grown too big to fit as a reply, so I'm putting it here.

Written by: Kris Mok [email protected]

Most of the contents in this note are based on my reading of HotSpot source code from OpenJDK and experimenting with the VM flags; otheres come from HotSpot mailing lists and other reading materials listed in the "References" section.

This

@jboner
jboner / latency.txt
Last active April 19, 2025 21:29
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
@viktorklang
viktorklang / Actor.java
Last active December 26, 2024 10:54
Minimalist Java Actors
/*
Copyright 2012-2021 Viktor Klang
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
@janx
janx / fetchsub.py
Created July 27, 2011 02:31
Feching subtitles on shooter.cn
#!/usr/bin/python2
USAGESTR = """Usage: fetchsub.py [-l langcode] videofile1 [videofile2 ...]
langcode: chn [default]
eng
sub file will saved in the same directory of each videofile
XXXXXXX.mkv 's sub files will named as:
XXXXXXX.chn.0.srt, XXXXXXX.chn.1.srt, XXXXXXX.chn.2.srt
"""
"""Author: sevenever