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burp-2:foo jd$ python probabilistic_strategy.py 1000 16 64
request_count: 1000 cluster_size: 16 threshold: 64

probability of being quotad at a given local concurrency:
1	0.015070684079
2	0.07629533815
3	0.202571187171
4	0.378831226431

mean observed global concurrency limit: 64.033

jdmaturen

Heads or Tails Extended

In fact, only 2 out of 2,862 broad domestic stock funds were able to outperform their peers consistently over five years, according to one measure: performance in the top quartile of funds over five consecutive 12-month periods ended in March 2014. That translates to just 0.07 percent of the funds, which means that more than 99.9 percent of funds fell short of that feat.
…
Repeat those double flips five times and you’ll find the probability of a mutual fund ending up in the top quartile five times in a row through chance: 0.098 percent. (We’re flipping the coin twice for each year of mutual fund performance.) That’s a bigger probability than the 0.07 percent scored by the actual funds. This means that if mutual fund managers had just flipped coins, roughly three of them — not two — would have been expected to end up in the top quartile for five years in a row.

Indeed:

>>> 100 * .25 ** 5

jdmaturen

#!/bin/bash
wget http://del.interoute.com/?id=aa1fa024-ae1d-4285-923e-3ccfc6385200&delivery=download
wget http://del.interoute.com/?id=0be7e9f6-e572-411c-81cf-5b59de45336d&delivery=download
wget http://del.interoute.com/?id=3b30d50f-850b-495a-acfb-8d6d7d6a3e57&delivery=download
wget http://del.interoute.com/?id=23cc3dcc-4b11-4809-8d95-8cc07f1b5cae&delivery=download
wget http://del.interoute.com/?id=bd58c55a-136f-46c2-abf6-51c05ecaa780&delivery=download
wget http://del.interoute.com/?id=0d5ba0c2-bdd2-4a72-b654-55053e125527&delivery=download
wget http://del.interoute.com/?id=ad9e99c7-e5ad-49bc-8e12-0230db2807be&delivery=download
wget http://del.interoute.com/?id=08227202-0d13-4020-b99e-8b9c6741b656&delivery=download
wget http://del.interoute.com/?id=ca16419d-5f81-4d12-a998-f87a08e72971&delivery=download

jdmaturen

# In-memory Cassandra-ish thingy... useful for unit tests. Maybe useful for other
# stuff too? No support for SuperColumns, but that should be easy enough to add.


import bisect
import copy
from cassandra.ttypes import NotFoundException, Column, ColumnPath, ColumnOrSuperColumn


class SSTable(object):

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import multiprocessing
import sys


from multiprocessing import JoinableQueue
from multiprocessing import Pipe
from multiprocessing import Queue
from multiprocessing import Process
from pylibmc import Client
from time import sleep

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<?php
$GLOBALS['THRIFT_ROOT'] = '/path/to/thrift/';
require_once $GLOBALS['THRIFT_ROOT'].'/packages/cassandra/Cassandra.php';
require_once $GLOBALS['THRIFT_ROOT'].'/packages/cassandra/cassandra_types.php';
require_once $GLOBALS['THRIFT_ROOT'].'/transport/TSocket.php';
require_once $GLOBALS['THRIFT_ROOT'].'/protocol/TBinaryProtocol.php';
require_once $GLOBALS['THRIFT_ROOT'].'/transport/TFramedTransport.php';
require_once $GLOBALS['THRIFT_ROOT'].'/transport/TBufferedTransport.php';

function microsecond_timestamp() {

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<?php

namespace app;


include '../config/bootstrap.php';


use \Exception;
use \Http404;

jdmaturen

diff --git a/tornado/httpclient.py b/tornado/httpclient.py
index 25d07ae..89e1fd4 100644
--- a/tornado/httpclient.py
+++ b/tornado/httpclient.py
@@ -536,7 +536,8 @@ def _curl_setup_request(curl, request, buffer, headers):
     curl.setopt(pycurl.FOLLOWLOCATION, request.follow_redirects)
     curl.setopt(pycurl.MAXREDIRS, request.max_redirects)
     curl.setopt(pycurl.CONNECTTIMEOUT, int(request.connect_timeout))
-    curl.setopt(pycurl.TIMEOUT, int(request.request_timeout))
+    curl.setopt(pycurl.NOSIGNAL, 1)

jdmaturen

from gevent import monkey; monkey.patch_socket()

import gevent
import httplib2

from gevent import queue
from time import time

def worker(q):
        h = httplib2.Http(timeout=0.1)

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from gevent import monkey; monkey.patch_socket()


import gevent
import httplib2


from gevent import http
from time import time