加了块ssd硬盘，默认的分区名是 “未命名1”, 有点二，改了个好理解的。
$ mount
/dev/disk0s2 on / (hfs, local, journaled)
devfs on /dev (devfs, local, nobrowse)
/dev/disk1s2 on /Volumes/Macintosh HD (hfs, local, journaled)
$sudo diskutil rename /dev/disk0s2 "SSD盘"
node.js为什么不用coroutine？
node.js和coroutine
风格之争：Coroutine vs Callback
Call/CC与Node.js
最早听说协程的概念来源于Lua,后来逛论坛听说了stackless python，再后来听说erlang也是用这种方法，但是一直没怎么细看。正好要准备个年后的python的分享，中间涉及到pypy和stackless python,又得扯到协作式多线程（微线程，协程）的概念，便又了解了一番。
wiki:http://www.irc-wiki.org/
最流行的server:http://www.unrealircd.com/
最流行的webirc:qwebirc.org (python+twisted)
最流行的ircbot:https://github.com/ProgVal/Limnoria（python+twisted)
findbigfile.py
#!/usr/bin/env python
import sys, os
#100M
BIG_FILE_SIZE = 1024 * 1024 * 100
BIG_DIR_SIZE = int(os.popen('getconf PAGE_SIZE').read().strip()) * 1024
EXCLUDES = ['/home/cdn/wpt_data']
EXCLUDES = [os.path.normpath(p) for p in EXCLUDES]
stack = [os.path.normpath(sys.argv[1])]
def format_size(s):
if s < 1024:
return '%d Bytes' % s
if s < 1024 * 1024:
return '%d KB' % (s/1024)
if s < 1024 * 1024 * 1024:
return '%d MB' % (s/1024/1024)
return '%d GB' % (s/1024/1024/1024)
while len(stack):
check_file = stack.pop()
if check_file in EXCLUDES:
continue
#pass link
if os.path.islink(check_file):
continue
if os.path.isfile(check_file):
s = os.path.getsize(check_file)
if s > BIG_FILE_SIZE:
print 'BIG FILE:%s\t%s' % (check_file, format_size(s))
continue
if os.path.isdir(check_file):
s = os.path.getsize(check_file)
#pass big directory
if s > BIG_DIR_SIZE:
print 'BIG DIR:%s\t%s' % (check_file, format_size(s))
continue
try:
for f in os.listdir(check_file):
stack.append(os.path.join(check_file, f))
except:
pass