kofemann

#!/usr/bin/env python
"""
  A small utility to create a file of specified size:

  $ mkfile 100g
"""
import sys
import time
import os

kofemann

#!/usr/bin/env python
# hexdump.py

'''A program which dumps the content  of a file in HEX format like:

$  ./hexdump.py hexdump.py
00000   23 21 2f 75 73 72 2f 62   69 6e 2f 65 6e 76 20 70    ...usr.bin.env.p
00010   79 74 68 6f 6e 0a 0a 69   6d 70 6f 72 74 20 6d 6d    ython..import.mm
00020   61 70 0a 69 6d 70 6f 72   74 20 63 6f 6e 74 65 78    ap.import.contex
00030   74 6c 69 62 0a 69 6d 70   6f 72 74 20 73 79 73 0a    tlib.import.sys.

kofemann

#!/usr/bin/env python
'''A script to calculate adler32 checksum of given files'''

BLOCKSIZE=256*1024*1024
import sys
from zlib import adler32

for fname in sys.argv[1:]:
 asum = 1
 with open(fname,"rb") as f:

kofemann

#!/bin/sh
#
# execute command as a defiend user with X forwarding
# Example:
#   xsu auser gedit /some/text/file
#

if [ $# -lt 2 ]
then
  echo "Usage: xsu <user> <command> [args....]"

kofemann

#!/bin/sh

N=30
ID=`id -u`
PROXY_FILE=/tmp/x509up_u${ID}
STD_OPTS="-q -rfc --voms desy"

# gen initial proxy
voms-proxy-init ${STD_OPTS}

kofemann

import re
import string
import math

IN = 'COLLISON1.txt'
DELIMER = '\xb3'
KeV_in_Mev=1000


data_line_re = re.compile(".+\d+\.E\+0.*")

kofemann

#!/usr/bin/env python

"""
Latency Comparison Numbers

If L1 access where a one second

based on number from https://gist.github.com/jboner/2841832
"""

kofemann

Latency Comparison Numbers
--------------------------
CPU cycle                                     0.3 ns
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
Send 1K bytes over 1 Gbps network        10,000   ns    0.01 ms

kofemann

import re
import string
import math
from Tkinter import Tk
from Tkinter import *
from tkFileDialog import askopenfilename, asksaveasfilename
import cStringIO


IN = 'COLLISON1.txt'

kofemann

#!/usr/bin/env python

import sys
import struct
import binascii


def hexToByte(h):
  bytes = []
  h = ''.join( h.split(" ") )