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@cgoldberg
cgoldberg / mailbox.py
Created November 26, 2012 18:33
MailBox class for processing IMAP email (Gmail from Python example)
#!/usr/bin/env python
"""MailBox class for processing IMAP email.
(To use with Gmail: enable IMAP access in your Google account settings)
usage with GMail:
import mailbox
@jboner
jboner / latency.txt
Last active June 8, 2024 14:56
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
@parente
parente / runinenv.sh
Created February 15, 2011 01:54
run a command in virtualenv, useful for supervisord
#!/bin/bash
VENV=$1
if [ -z $VENV ]; then
echo "usage: runinenv [virtualenv_path] CMDS"
exit 1
fi
. ${VENV}/bin/activate
shift 1
echo "Executing $@ in ${VENV}"
exec "$@"