Re: [coLinux-devel] asynchronous cobd as default?

[Oliver M. <Oli...@fs...>]

Hi Henry,
I tried to run your "benchmark". Why do I get better results with sync mode? Did I miss something?

Greets Oliver

settings.txt:
cobd0=Drives\base.drv
cobd1=Drives\swap.drv
cobd2=Drives\home.drv

# /usr/bin/time --format='real %e\nuser %U\nsys %S\nIO %w\n' -- dd if=/dev/zero of=/tmp/foo bs=200M count=1
1+0 records in
1+0 records out
209715200 bytes (210 MB) copied, 4.78007 seconds, 43.9 MB/s
real 4.78
user 0.00
sys 3.03
IO 1
#  /usr/bin/time --format='real %e\nuser %U\nsys %S\nIO %w\n' -- dd if=/dev/zero of=/tmp/foo bs=200M count=1
1+0 records in
1+0 records out
209715200 bytes (210 MB) copied, 9.11014 seconds, 23.0 MB/s
real 9.12
user 0.01
sys 1.99
IO 1549
# uname -a
Linux andLinux 2.6.22.18-co-0.8.0 #1 PREEMPT Sun May 11 22:48:31 UTC 2008 i686 GNU/Linux