Hi Kevin,
I'd be happy to help. I had to make a few assumptions, but here's an example. I
assumed that you want to create and write files that are on average 10k and
read files which are the same size.
Here's a simple script which creates a set of files and then does 60% reads of
those files, and 40% writes to another set of filenames:
<pre>
set $dir=/tmp
set $nfiles=1000
set $meandirwidth=10
set $filesize=10k
set $nthreads=2
set $meaniosize=128k
define fileset
name=readfileset,path=$dir,size=$filesize,entries=$nfiles,dirwidth=$meandirwidth,prealloc
define fileset
name=writefileset,path=$dir,size=$filesize,entries=$nfiles,dirwidth=$meandirwidth
define process name=filereader,instances=1
{
thread name=filereaderthread,memsize=10m,instances=$nthreads
{
flowop createfile name=createfile1,filesetname=writefileset,fd=1
flowop writewholefile name=writewholefile1,iosize=$meaniosize,fd=1
flowop closefile name=closefile1,fd=1
flowop createfile name=createfile2,filesetname=writefileset,fd=1
flowop writewholefile name=writewholefile2,iosize=$meaniosize,fd=1
flowop closefile name=closefile2,fd=1
flowop openfile name=openfile3,filesetname=readfileset,fd=1
flowop readwholefile name=readfile3,fd=1
flowop closefile name=closefile3,fd=1
flowop openfile name=openfile4,filesetname=readfileset,fd=1
flowop readwholefile name=readfile4,fd=1
flowop closefile name=closefile4,fd=1
flowop openfile name=openfile5,filesetname=readfileset,fd=1
flowop readwholefile name=readfile5,fd=1
flowop closefile name=closefile5,fd=1
}
}
</pre>
The script defaults to 2 threads doing 2 create/writes then 3 open/read/close.
If we add more threads, it will increase parallelism without changing the
ratios.
When I run this, I see the correct 60r/40w mix.
<pre>
/opt/filebench/bin/filebench
filebench> load kevin
7353: 0.076: Kevin Version 1.0 personality successfully loaded
filebench> run 10
7353: 0.138: Fileset writefileset: 1000 files, avg dir = 10.0, avg depth =
3.0, mbytes=9
7353: 5.664: Removed any existing fileset writefileset in 6 seconds
7353: 5.665: Creating fileset writefileset...
7353: 5.698: Preallocated 0 of 1000 of fileset writefileset in 1 seconds
7353: 5.769: Fileset readfileset: 1000 files, avg dir = 10.0, avg depth = 3.0,
mbytes=9
7353: 8.000: Removed any existing fileset readfileset in 3 seconds
7353: 8.001: Creating fileset readfileset...
7353: 17.070: Preallocated 1000 of 1000 of fileset readfileset in 10 seconds
7353: 17.072: Creating/pre-allocating files
7353: 17.072: Starting 1 filereader instances
7360: 18.081: Starting 2 filereaderthread threads
7353: 21.091: Running...
7353: 31.161: Run took 10 seconds...
7353: 31.918: Per-Operation Breakdown
closefile5 41ops/s 0.0mb/s 0.0ms/op 27us/op-cpu
readfile5 41ops/s 0.4mb/s 12.5ms/op 346us/op-cpu
openfile5 41ops/s 0.0mb/s 0.2ms/op 89us/op-cpu
closefile4 41ops/s 0.0mb/s 0.0ms/op 27us/op-cpu
readfile4 41ops/s 0.3mb/s 13.0ms/op 338us/op-cpu
openfile4 41ops/s 0.0mb/s 0.1ms/op 90us/op-cpu
closefile3 41ops/s 0.0mb/s 0.0ms/op 27us/op-cpu
readfile3 41ops/s 0.4mb/s 17.8ms/op 357us/op-cpu
openfile3 41ops/s 0.0mb/s 0.2ms/op 89us/op-cpu
closefile2 41ops/s 0.0mb/s 0.0ms/op 52us/op-cpu
writewholefile2 41ops/s 0.4mb/s 0.4ms/op 380us/op-cpu
createfile2 41ops/s 0.0mb/s 0.9ms/op 495us/op-cpu
closefile1 41ops/s 0.0mb/s 0.0ms/op 58us/op-cpu
writewholefile1 41ops/s 0.3mb/s 0.5ms/op 407us/op-cpu
createfile1 41ops/s 0.0mb/s 1.2ms/op 611us/op-cpu
7353: 31.993:
IO Summary: 6255 ops 612.8 ops/s, (123/82 r/w) 1.9mb/s, 838us
cpu/op, 9.4ms latency
</pre>
Please let me know if this is what you were looking for?
Regards,
Richard.
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