| 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 |
| #! /usr/bin/env python | |
| """ | |
| Pounce on an open OpenTable reservation. | |
| """ | |
| import sys, os, time, re, mechanize, gtk, webkit, threading, random | |
| rid = 1180 # OpenTable restaurant ID; 1180 = French Laundry | |
| people_choices = [3, 3, 3, 4] # number of people to request for; cycles through choices |
| """making a dataframe""" | |
| df = pd.DataFrame([[1, 2], [3, 4]], columns=list('AB')) | |
| """quick way to create an interesting data frame to try things out""" | |
| df = pd.DataFrame(np.random.randn(5, 4), columns=['a', 'b', 'c', 'd']) | |
| """convert a dictionary into a DataFrame""" | |
| """make the keys into columns""" | |
| df = pd.DataFrame(dic, index=[0]) |
| #!/bin/bash | |
| # Merges the master branch into all other branches | |
| # | |
| # Process: | |
| # | |
| # - Save the name of the current branch | |
| # - If the current branch is not master then checkout master. | |
| # - Pull the latest changes for master from its upstream branch. | |
| # - Loop over each local branch. |
Ideas are cheap. Make a prototype, sketch a CLI session, draw a wireframe. Discuss around concrete examples, not hand-waving abstractions. Don't say you did something, provide a URL that proves it.
Nothing is real until it's being used by a real user. This doesn't mean you make a prototype in the morning and blog about it in the evening. It means you find one person you believe your product will help and try to get them to use it.
This gist lets you keep IPython notebooks in git repositories. It tells git to ignore prompt numbers and program outputs when checking that a file has changed.
To use the script, follow the instructions given in the script's docstring.
For further details, read this blogpost.
The procedure outlined here is inspired by this answer on Stack Overflow.
| #import <Foundation/Foundation.h> | |
| #import <Cocoa/Cocoa.h> | |
| #import <unistd.h> | |
| BOOL copy_to_clipboard(NSString *path) | |
| { | |
| // http://stackoverflow.com/questions/2681630/how-to-read-png-image-to-nsimage | |
| NSImage * image; | |
| if([path isEqualToString:@"-"]) | |
| { | |
| // http://caiustheory.com/read-standard-input-using-objective-c |
| #http://unix.stackexchange.com/questions/34248/how-can-i-find-broken-symlinks | |
| find . -type l ! -exec test -e {} \; -print |
MIT License
Copyright (c) 2018 Josh Bode
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
| function __git_fzf_is_in_git_repo | |
| command -s -q git | |
| and git rev-parse HEAD >/dev/null 2>&1 | |
| end | |
| function __git_fzf_git_status | |
| __git_fzf_is_in_git_repo; or return | |
| git -c color.status=always status --short | \ | |
| fzf -m --ansi --preview 'git diff --color=always HEAD -- {-1} | head -500' | \ | |
| cut -c4- | \ |
