OpenSolaris_b135/cmd/filebench/workloads/filemicro_createrand.f

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# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
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# Single threaded asynchronous ($sync) random appends (random I/Os
# in the range of [1B - 1MB]) to a 1GB file.
# Does a fsync after 10 ($iters) appends.
# Stops after 1GB ($bytes) has been appended/written.

set $dir=/tmp
set $bytes=1g
set $iosize=1m
set $iters=10
set $nthreads=1
set $sync=false

define file name=largefile,path=$dir,size=0,prealloc

define process name=filecreater,instances=1
{
  thread name=filecreaterthread,memsize=10m,instances=$nthreads
  {
    flowop appendfilerand name=append-file,filename=largefile,dsync=$sync,iosize=$iosize,iters=$iters
    flowop fsync name=sync
    flowop finishonbytes name=finish,value=$bytes
  }
}

echo  "FileMicro-CreateRand Version 2.1 personality successfully loaded"
usage "Usage: set \$dir=<dir>"
usage "       set \$bytes=<value>    defaults to $bytes"
usage "       set \$iosize=<size>    defaults to $iosize"
usage "       set \$iters=<value>    defaults to $iters"
usage "       set \$nthreads=<value> defaults to $nthreads"
usage "       set \$sync=<bool>      defaults to $sync"
usage " "
usage "       run runtime (e.g. run 60)"