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Alex Dong alexdong

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alexdong / gist:490244
Created July 26, 2010 06:34
$ ht shell
hypertable> create table bookmarks (url);
Elapsed time: 0.03 s
hypertable> INSERT INTO bookmarks VALUES
-> ("homepage", "url", "http://alexdong.com");
Elapsed time: 0.00 s
Avg value size: 19.00 bytes
Total cells: 1
@alexdong
alexdong / RangeServer log over 13 seconds
Created July 27, 2010 09:52
alexdong@clifton % date /opt/hypertable/current/log
Tue Jul 27 09:53:56 UTC 2010
alexdong@clifton % tail -n 5 Hypertable.RangeServer.log /opt/hypertable/current/log
STAT hits[550,2009-02-17 02:06:56,14739441..633,2009-10-27 22:20:04,7783332](default) cumulative_size 201426188 <= prune_threshold 867668958
STAT hits[633,2009-10-27 22:20:04,7783332..7428,2009-01-26 22:59:26,4197051](default) cumulative_size 201426188 <= prune_threshold 867668958
STAT hits[7428,2009-01-26 22:59:26,4197051..86059,2010-02-02 09:25:06,56699891](default) cumulative_size 353111255 <= prune_threshold 867668958
STAT hits[86059,2010-02-02 09:25:06,56699891..��](default) cumulative_size 353111255 <= prune_threshold 867668958
1280224430 INFO Hypertable.RangeServer : (/root/src/hypertable/src/cc/Hypertable/RangeServer/RangeServer.cc:2619) Memory Usage: 1170841532 bytes
alexdong@clifton % date
@alexdong
alexdong / Jamroot
Created July 28, 2010 13:05
using python ;
# Specify that the boost-python library exists under the name
# boost_python. That is, because the library was installed at the
# standard search path as /usr/lib/libboost_python.so, bjam will find
# it automatically. No need to specify the absolute path.
# lib libboost_python : : <name>boost_python-mt ;
lib libboost_python : : <name>boost_python ;
lib libboost_date_time : : <name>boost_date_time ;
@alexdong
alexdong / boost-build.jam
Created July 28, 2010 13:06
# Edit this path to point at the tools/build/v2 subdirectory of your
# Boost installation. Absolute paths work, too.
boost-build /usr/share/doc/libboost1.40-doc/examples/tools/build/v2/ ;
@alexdong
alexdong / plumrain.cc
Created July 28, 2010 13:07
#include "boost/date_time/gregorian/gregorian.hpp"
#include "boost/date_time/posix_time/posix_time.hpp"
#include <boost/python.hpp>
#include <iostream>
#include <string>
int utc_date_str_to_int(const char* s, int offset) {
using namespace boost::gregorian;
using namespace boost::posix_time;
@alexdong
alexdong / perf.py
Created July 28, 2010 13:09
#!/usr/bin/env python
import plumrain
s = "2010-10-9 8:12:00"
print plumrain.utc_date_str_to_int(s, 10)
@alexdong
alexdong / setup_boost_python.sh
Created July 28, 2010 13:20
#!/bin/sh
# the basic boost library
sudo apt-get install libboost-dev
# install the boost.python library
sudo apt-get install libboost-python-dev
# install the extra libraries we need
sudo apt-get install libboost-date-time-dev
@alexdong
alexdong / punch_card_visualizing_chi.html
Created November 16, 2010 13:53
Django template for visualizing Customer Happiness Index
{% load usage %}
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Trunkly · Punch Chart</title>
<style>
body { margin: 30px auto; width: 800px; background-color:#333; }
div { background-color: green; }
a { color: #eee; font-size:11px; text-decoration:none; }
</style>
@alexdong
alexdong / MongoDB collection stats.js
Created March 18, 2011 11:34
> db.stats()
{
"collections" : 31,
"objects" : 33273261,
"avgObjSize" : 276.750695520947,
"dataSize" : 9208398124,
"storageSize" : 10635470336,
"numExtents" : 242,
"indexes" : 58,
"indexSize" : 10991725824,
@alexdong
alexdong / git archeology
Last active December 17, 2015 14:39
Git commands to grep through historical patches
git log --no-merges --format="%ad %s" -i --grep=invite