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jhclark /
Created March 9, 2012 16:38
Example of using KenLM's probing hash map for one's own evil purposes
// building:
// g++ -I$HOME/prefix/include/ -Iklm -c
// g++ -lz klm/util/file.o klm/util/mmap.o klm/util/exception.o dumb.o -o dumb
#include <stdint.h>
#include <iostream>
using namespace std;
#include <boost/functional/hash.hpp>
jhclark / latency.txt
Created May 31, 2012 19:58 — forked from jboner/latency.txt
Latency numbers every programmer should know
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
Send 1K bytes over 1 Gbps network 10,000 ns 0.01 ms
Read 1 MB sequentially from memory 250,000 ns 0.25 ms
Round trip within same datacenter 500,000 ns 0.5 ms
Read 1 MB sequentially from SSD 1,000,000 ns 1 ms 4X memory
jhclark / gist:3077255
Created July 9, 2012 15:47 — forked from palexander/gist:2975305
Connecting to a remote mosh server where mosh was installed in ~/prefix
mosh --server="LD_LIBRARY_PATH=~/prefix/lib ~/prefix/bin/mosh-server"
jhclark / configure_powershell.ps1
Last active November 9, 2017 18:33
Quick configure powershell (PSReadline + other goodies)
# Install
(new-object Net.WebClient).DownloadString("") | iex
install-module psreadline
# One time use
import-module psreadline
Set-PSReadlineOption -EditMode Emacs
# Configure for use on every login
# First, make sure we're not going to clobber an existing profile...