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@dbehnke
dbehnke / client.py
Created March 18, 2014 19:08
Python AsyncIO Client and Server Example using StreamReader and StreamWriter
"""
client.py - AsyncIO Server using StreamReader and StreamWriter
This will create 200 client connections to a server running server.py
It will handshake and run similar to this:
Server: HELLO
Client: WORLD
@abravalheri
abravalheri / helpers.cmake
Last active July 11, 2025 07:26
CMake examples
if(NOT HOME)
if(WIN32)
string(REPLACE "\\" "/" HOME "$ENV{USERPROFILE}")
else()
set(HOME $ENV{HOME})
endif()
endif()
### Useful Functions and Macros ###
# Prints a list of messages, each one in a new line
@evands
evands / combine_static_libraries.sh
Created January 14, 2015 20:40
Combine multiple .a static libraries, which may each have multiple architectures, into a single static library
#!/bin/sh
# Combined all static libaries in the current directory into a single static library
# It is hardcoded to use the i386, armv7, and armv7s architectures; this can easily be changed via the 'archs' variable at the top
# The script takes a single argument, which is the name of the final, combined library to be created.
#
# For example:
# => combine_static_libraries.sh combined-library
#
# Script by Evan Schoenberg, Regular Rate and Rhythm Software
@140am
140am / ipc_test.py
Last active March 3, 2025 00:59
Simple Python / ØMQ IPC (Inter Process Communication) performance benchmark
""" Simple IPC benchmark test
Test throughput of 512 KB messages sent between two python processes using:
- multiprocessing pipe
- zeroMQ PUSH/PULL
- zeroMQ DEALER/DEALER
Result:
@minshallj
minshallj / foo.js
Last active March 13, 2023 18:28
roslibjs example
//* The Ros object, wrapping a web socket connection to rosbridge.
var ros = new ROSLIB.Ros({
url: 'ws://localhost:9090' // url to your rosbridge server
});
//* A topic for messaging.
var exampleTopic = new ROSLIB.Topic({
ros: ros,
name: '/com/endpoint/example', // use a sensible namespace
messageType: 'std_msgs/String'
@jyalim
jyalim / build-hdf5.sh
Last active March 7, 2025 16:51
Build HDF5 with Intel Compilers
#!/usr/bin/env bash
# https://software.intel.com/en-us/articles/performance-tools-for-software-developers-building-hdf5-with-intel-compilers
## PREREQS
# 1) szip 2.1
export CC=icc
export CXX=icpc
export FC=ifort
export CFLAGS='-O3 -xHost -ip'
export CXXFLAGS='-O3 -xHost -ip'
@kofemann
kofemann / 10G-sysctl.conf
Last active January 18, 2025 16:00
sysctl configuration for 10GE ethernet
#
# Based on info providef at http://fasterdata.es.net/
#
# allow testing with buffers up to 64MB
net.core.rmem_max = 67108864
net.core.wmem_max = 67108864
# Enable memory auto tuning
net.ipv4.tcp_moderate_rcvbuf = 1
@oconnor663
oconnor663 / rw.py
Created September 2, 2015 00:17
reading and writing from an os.pipe() in asyncio
#! /usr/bin/python
import asyncio
import os
@asyncio.coroutine
def do_writing(writer):
for i in range(1, 4):
writer.write(("stuff " + str(i)).encode())
@gilgeorges
gilgeorges / FLIRjpg2HDF5.py
Last active July 9, 2023 08:18
Extracts the raw thermal images from a set / sequence of FLIR JPG images and stores them as matrices in an HDF5 file. The actual extraction is done using Exiftool (available at http://www.sno.phy.queensu.ca/~phil/exiftool/ - may require you to install Perl, e.g. "Strawberryperl" for Windows).
""" FLIRjpg2HDF5
reads raw thermal images from a FLIR-camera JPG image series
and stores them in a HDF5 file - using exiftool """
import glob
import os
import subprocess
import PIL.Image
import numpy as np

Docker Macvlan and Ipvlan Experimental Driver Examples

  • The build will be vendored into github.com/docker/docker in the next few days. In the meantime here is the binary that will be getting vendored. docker-1.11.0-dev.zip
  • Ipvlan L2 mode network with multiple subnets without a parent specified
  • For a long test that will create 54 networks and 120+ containers, then delete them all and recreate them again try ipvlan-macvlan-it.sh Instructions here Docker Macvlan and Ipvlan Manual IT Test
  • FYI Note: When the parent is empty or the --internal flag is used, a linux type dummy interface is dynamically created by Libnetwork to act as the parent. This network is completely isolated and is the equivalent to a --internal flag. This is a good mode for demoing.
  • The first test requires an interface