jthornber

#!/usr/bin/env ruby                                                                                                           

dev_size = 2048 * 1024 * 1024   # 1T                                                                                          
block_size = 2048 * 1
nr_blocks = dev_size / block_size
io_size = 128

#----------------------------------------------------------------                                                             

def calc_cows(n, nr_blocks)

jthornber

#ifndef	CONTAINER_H
#define	CONTAINER_H

/*----------------------------------------------------------------*/

struct container;

/*                                                                                                                               
 * The container presents a 64bit address space.  The client decides where                                                       
 * data goes in this address space.  This address space is virtual and                                                           

jthornber

#ifndef THIN_SCRIPT_PROGRAM_H
#define THIN_SCRIPT_PROGRAM_H

static struct instruction provision_code[] = {
     {i_quiesce},
     {i_alloc_block},
     {i_dup, {.u = 1}},
     {i_cmp, {.u = 0}},
     {i_branch_if, {.u = 100}},
     {i_dup, {.u = 1}},

jthornber

def mk_hash(multiplier, shift, nr_buckets):
    def hash(n):
        h1 = (n * multiplier) >> (2 + shift)
        h2 = h1 >> shift
        return (h1 ^ h2) % nr_buckets

    return hash


def run_test(hash_fn, nr_buckets, stride):