In article <20010924185755.E4126@schmorp.de> Marc Lehmann wrote:
| On Mon, Sep 24, 2001 at 06:53:03PM +0200, Matthias Andree
| <email@example.com> wrote:
| > Linear writing as dd mostly does is BTW something which should never be
| > affected by write caches.
| A write cache can and will speed up linear writes on typical ide setups.
Pedantically I guess that's true, but I wouldn't expect any significant
change unless the drive were badly fragmented, since the write cache on
the drive should hold enough data to allow all data to a track to be
written in a single revolution.
Write cache makes a big difference in normal use, where seeks and such
can be optimized, but for a single process writing a single file (ie.
dd) I don't see where it would or could help much.
Since the single process is not a typical case on most systems, I don't
see that it's a burning question.
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This archive was generated by hypermail 2b29 : Sun Sep 30 2001 - 21:00:30 EST