| #!/usr/bin/env bash | |
| # memusg -- Measure memory usage of processes | |
| # Usage: memusg COMMAND [ARGS]... | |
| # | |
| # Author: Jaeho Shin <netj@sparcs.org> | |
| # Created: 2010-08-16 | |
| ############################################################################ | |
| # Copyright 2010 Jaeho Shin. # | |
| # # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); # |
Custom recipe to get OS X 10.9 Mavericks running from scratch, setup applications and developer environment. I use this gist to keep track of the important software and steps required to have a functioning system after a semi-annual fresh install.
The software selected is software that is "tried and true" --- software I need after any fresh install. I often install other software not listed here, but is handled in a case-by-case basis.
| rabbitmqctl list_connections pid port state user vhost recv_cnt send_cnt send_pend name | awk '{print "rabbitmqctl close_connection \"" $1 "\" \"manually closing idle connection\"" | "/bin/bash" }' |
Picking the right architecture = Picking the right battles + Managing trade-offs
| // Jeremie Miserez <jeremie@miserez.org>, 2015 | |
| // | |
| // A little bit of Javascript to let you export your Google Music library, playlists, and album track lists :) | |
| // | |
| // I posted this as an answer here: http://webapps.stackexchange.com/questions/50311/print-playlist-from-google-play-music | |
| // | |
| // 1. Go to: https://play.google.com/music/listen#/all (or your playlist) | |
| // | |
| // 2. Open a developer console (F12 for Chrome). Paste | |
| // code below into the console. |
Long ago, the first time I read "The Pragmatic Programmer", I read some advice that really stuck with me.
"Don't Use Manual Procedures".
This in the chapter on Ubiquitous Automation. To summarize, they want you to automate all the things.
The trouble was that I hadn't much of an idea how to actually go
FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.
| """How to gzip a string. | |
| This works for Python 3.2. For 3.1-, look at the original gist (under "Revisions") | |
| """ | |
| import gzip | |
| def gzip_str(string_: str) -> bytes: | |
| return gzip.compress(string_.encode()) |
| Latency Comparison Numbers | |
| -------------------------- | |
| L1 cache reference/hit 1.5 ns 4 cycles | |
| Floating-point add/mult/FMA operation 1.5 ns 4 cycles | |
| L2 cache reference/hit 5 ns 12 ~ 17 cycles | |
| Branch mispredict 6 ns 15 ~ 20 cycles | |
| L3 cache hit (unshared cache line) 16 ns 42 cycles | |
| L3 cache hit (shared line in another core) 25 ns 65 cycles | |
| Mutex lock/unlock 25 ns | |
| L3 cache hit (modified in another core) 29 ns 75 cycles |
When the shared files on Google Drive is downloaded, it is necessary to change the download method by the file size. The boundary of file size when the method is changed is about 40MB.
filename="### filename ###"
fileid="### file ID ###"
curl -L -o ${filename} "https://drive.google.com/uc?export=download&id=${fileid}"