Re: disk throughput

Matthias Andree
2001-11-05T23:41:43Z

On Mon, 05 Nov 2001, Andrew Morton wrote:

> write-behind is enabled. I'm not religious about write-behind.
> Yes, there's a small chance that the disk will decide to write a
> commit block in front of the data (which is at lower LBAs). But

Well, you're talking about performance here. In my simple tests, the
write cache has a major impact (twofold) on linear writes (just dd to
a partition), so your milage may vary a lot depending on the cache
configuration.