Re: howto boost write(2) performance?

[Michael Stiller]

On Tue, 2007-10-09 at 16:56 +0200, Andi Kleen wrote:
> Michael Stiller <ms@xxxxxxxxxx> writes:
> > 
> > The write(2) performance is not good enough, the writer threads take to
> > much time, and i ask you for ideas, howto to boost the write
> > performance. 
> 
> You could use an O_DIRECT write if the data is suitably aligned
> and your IO sizes are big enough (O_DIRECT is usually a loss
> on small IOs). It will also be synchronous, but if you do it 
> from a separate thread anyways that should be fine.

Thanks to all who answered and especially to Andi. Using O_DIRECT did
the trick.

Cheers,

Michael


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/