smihir

#!/usr/bin/env python3

'''
Basic IPv4 router (static routing) in Python.
'''

import sys
import os
import time
from switchyard.lib.packet import *

smihir

- Data to be collected on Ubuntu vm running on VirtualBox. (2 GB RAM)
  #uname -a
   Linux adminuser-VirtualBox 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:08:14 UTC 2014 i686 i686 i686 GNU/Linux

- The 'heart' of the zoned buddy allocator is the following function(in mm/page_alloc.c)
    struct page *
    __alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order,
                struct zonelist *zonelist, nodemask_t *nodemask)

- The following tracepoint is present in this function:

smihir

#!/usr/bin/env python3

'''
Ethernet learning switch in Python: HW3.

Note that this file currently has the code to implement a "hub"
in it, not a learning switch.  (I.e., it's currently a switch
that doesn't learn.)
'''
from switchyard.lib.address import *

smihir

// This code snippet can be used to dump a skb, so that with minimum postprocessing
// it can be fed to text2pcap for converting into a pcap file which can be analyzed
// in wireshark

do {
    int i;
    printk("\n");
    printk("000000 ");
    for (i = 0 ; i < skb->len; i++) {
        printk("%02x ", ((u8*)skb->data)[i]);