[DRBD-user] Write performance 0.7.4 versus 0.7.5 on Primary + SyncTarget
bernd-schubert at web.de
Tue Oct 5 18:32:44 CEST 2004
On Tuesday 05 October 2004 18:05, Lars Ellenberg wrote:
> / 2004-10-05 17:59:08 +0200
> \ Bernd Schubert:
> > On Tuesday 05 October 2004 17:13, Benoit.Ropartz at alcatel.fr wrote:
> > > Ok i have tested writes speed during normal operation and i got sames
> > > results
> > > with two versions ~ 600 Ko/s.
> > >
> > > But why i find difference when syncing is active (30ko=>2ko) ???
> > Just read the changelog of 0.7.5, the write speed barrier of 30MB/s has
> > gone with this version. Probably you are now syncing with the full speed
> > of your hardware (check the logs or /proc/drbd during the synchronisation
> > to get the sync speed) and with the previous version only at 30MB/s and
> > so there was l more capacity left for normal writing operation.
> thanks for answering those questions.
Welcome, actually I don't see a reason why usually only you, Philipp and a
very few other members of this list answer those questions. Well, most times
you are so fast, that you already answered before I read the mail ;)
> > > And 2ko/s is very small....
> > Btw, what does the unit 'ko' mean? kilo operations?
> the french guys did not yet notice that the iso name is byte.
> the ones I know even keep confusing byte with bit because if
> a frenchman pronounces it, it sounds the same, anyways.
> so they keep saying octet, which is a correct term, too, of course.
> only not much used outside france...
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