xupeng

16k-128.fio:  read : io=784937MB, bw=1308.3MB/s, iops=83726 , runt=600004msec
16k-128.fio:  write: io=87204MB, bw=148828KB/s, iops=9301 , runt=600004msec
16k-144.fio:  read : io=791615MB, bw=1319.4MB/s, iops=84438 , runt=600004msec
16k-144.fio:  write: io=87966MB, bw=150127KB/s, iops=9382 , runt=600004msec
16k-16.fio:  read : io=415132MB, bw=708489KB/s, iops=44280 , runt=600002msec
16k-16.fio:  write: io=46108MB, bw=78690KB/s, iops=4918 , runt=600002msec
16k-32.fio:  read : io=576783MB, bw=984373KB/s, iops=61523 , runt=600002msec
16k-32.fio:  write: io=64097MB, bw=109391KB/s, iops=6836 , runt=600002msec
16k-64.fio:  read : io=714840MB, bw=1191.5MB/s, iops=76249 , runt=600002msec
16k-64.fio:  write: io=79441MB, bw=135579KB/s, iops=8473 , runt=600002msec

xupeng

#!/bin/bash

DEVICE="/dev/memdiska"
IOSTAT_DEVICE="memdiska"
BLOCK_SIZE="4k"
NUM_JOBS=16
RUNTIME=600
for BLOCK_SIZE in 4k 8k 16k; do
	for NUM_JOBS in 8 16 32 64 96 128 144; do
		echo $DEVICE $BLOCK_SIZE $NUM_JOBS

xupeng

#!/bin/bash

DEVICE="/ssd/test"
IOSTAT_DEVICE="memdiska"
BLOCK_SIZE="4k"
NUM_JOBS=16
RUNTIME=600
for BLOCK_SIZE in 4k 8k 16k; do
	for NUM_JOBS in 8 16 32 64 96 128 144; do
		echo $DEVICE $BLOCK_SIZE $NUM_JOBS

xupeng

From ebfb3244047301facaef111a0414ae8f48a09a36 Mon Sep 17 00:00:00 2001
From: xupeng <xupeng@xupeng.me>
Date: Wed, 7 Jan 2015 19:07:02 +0800
Subject: [PATCH] save engine changes

---
 physics_engine/Orderly.config |  2 +-
 src/PhysicsEngineOrderly.java |  8 ++++----
 src/code_swarm.java           | 14 +++++++++-----
 3 files changed, 14 insertions(+), 10 deletions(-)

xupeng

# This is a sample configuration file for code_swarm

# Input file
InputFile=log.xml

# Color assignment rules
# Keep in order, do not skip numbers. Numbers start
# at 1.
#
# Pattern:  "Label", "regex", R,G,B, R,G,B

xupeng

#!/usr/bin/env python

''' Migrate GitLab DB from PostgreSQL to MySQL

I do not know why there is no `rake db:data:dump` for my GitLab installation,
so I just use `rake db:setup` to create tables in MySQL, and then use this
query-and-dirty script to migrate the data.
'''

import psycopg2

xupeng

#!/usr/bin/env python
#coding=utf8

""" A MySQL query sniffer
"""

__author__ = "Xupeng Yun <recordus@gmail.com>"
__version__ = "$Revision: 8817 $"
__date__ = "$Date: 2012-07-09 12:18:28 +0800 (Mon, 09 Jul 2012) $"

xupeng

root@bazaar /root # opkg list-installed
aria2 - 1.15.1-1
avahi-daemon - 0.6.31-3
base-files - 115-r33288
bash - 4.2-3
bind-dig - 9.9.1-P1-1
bind-libs - 9.9.1-P1-1
blkid - 2.21.2-1
block-mount - 0.2.0-8
bsdiff - 4.3-1

xupeng

#!/bin/bash

# A relatively reliable way to get login user on Linux

user_entry=`getent passwd $(cat /proc/self/loginuid)`
if [ $? -eq 0 ]; then
	login_user=`echo ${user_entry} | cut -d: -f1`
else
	login_user=${SUDO_USER:-${LOGNAME}}
	if [ "${login_user}" = "" ]; then

xupeng

wiki:/etc/apache2# strace -c -p 3167
Process 3167 attached - interrupt to quit
^CProcess 3167 detached
% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 27.17    0.003609           0     83056         1 read
 15.48    0.002057           0     26524     11540 open
 13.91    0.001848           0     30519        20 stat
  9.87    0.001311           0     14982           munmap
  9.54    0.001267           0     43238           lseek