Berkeley-DB too fast

Hi

I am doing some performance testing using berkeley-db. When measuring the
latency of commit I got some results, which make me doubt, if the logging
data is written to disk in time:

Using a slow disk (5400rpm) I measured about 0.07 ms for a commit. But
average rotational delay is already much higher for that disk (5.5ms).

Is there a way to force writing data to disk instead of writing it just to
some cache?

System used was:

Linux 2.4.21
filesystem: ext3
berkeley-db 4.1.25

Regards,


        Matthias Meixner

-- 
Matthias Meixner                       [EMAIL PROTECTED]
Technische Universität Darmstadt
Datenbanken und Verteilte Systeme              Telefon (+49) 6151 16 6232
Wilhelminenstraße 7, D-64283 Darmstadt, Germany    Fax (+49) 6151 16 6229