Using Python's built-in defaultdict we can easily define a tree data structure:
def tree(): return defaultdict(tree)
That's it!
pm list packages -f |
import time | |
def RateLimited(maxPerSecond): | |
minInterval = 1.0 / float(maxPerSecond) | |
def decorate(func): | |
lastTimeCalled = [0.0] | |
def rateLimitedFunction(*args,**kargs): | |
elapsed = time.clock() - lastTimeCalled[0] | |
leftToWait = minInterval - elapsed | |
if leftToWait>0: |
#step 1 | |
yum -y install python-setuptools | |
#step 2 | |
rpm -Uhv http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.3.6-1.el5.rf.i386.rpm | |
# or | |
# rpm -Uhv http://apt.sw.be/redhat/el5/en/x86_64/rpmforge/RPMS//rpmforge-release-0.3.6-1.el5.rf.x86_64.rpm | |
#step 3 | |
# if you using centOS 6.2 enable rpmforge-extras (enabled =1) |
Using Python's built-in defaultdict we can easily define a tree data structure:
def tree(): return defaultdict(tree)
That's it!
package main | |
import ( | |
"net" | |
"os" | |
) | |
func main() { | |
strEcho := "Halo" | |
servAddr := "localhost:6666" | |
tcpAddr, err := net.ResolveTCPAddr("tcp", servAddr) |
(function( $ ) { | |
$.fn.simulateDragDrop = function(options) { | |
return this.each(function() { | |
new $.simulateDragDrop(this, options); | |
}); | |
}; | |
$.simulateDragDrop = function(elem, options) { | |
this.options = options; | |
this.simulateEvent(elem, options); | |
}; |
import redis | |
import threading | |
class Listener(threading.Thread): | |
def __init__(self, r, channels): | |
threading.Thread.__init__(self) | |
self.redis = r | |
self.pubsub = self.redis.pubsub() | |
self.pubsub.subscribe(channels) | |
# the following two lines give a two-line status, with the current window highlighted | |
hardstatus alwayslastline | |
hardstatus string '%{= kG}[%{G}%H%? %1`%?%{g}][%= %{= kw}%-w%{+b yk} %n*%t%?(%u)%? %{-}%+w %=%{g}][%{B}%m/%d %{W}%C%A%{g}]' | |
# huge scrollback buffer | |
defscrollback 5000 | |
# no welcome message | |
startup_message off |
(function(XHR) { | |
"use strict"; | |
var stats = []; | |
var timeoutId = null; | |
var open = XHR.prototype.open; | |
var send = XHR.prototype.send; | |
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 |