git: debug - Add seekbench.c
commit 148ebfe253b369f85e0ebc995806349294af3ea7
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Sun Nov 21 14:21:31 2010 -0800
debug - Add seekbench.c
* Add a little program which purposefully attempts to defeat OS and disk
caches to calculate seek latencies for different relative seek spans.
Well, this doesn't tell us anything we didn't know already, that being
that unless one can make accesses use of the HDs zone cache well anything
other than a linear read is going to have a fairly huge seek-time cost.
Summary of changes:
test/debug/seekbench.c | 80 ++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 80 insertions(+), 0 deletions(-)
create mode 100644 test/debug/seekbench.c
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/148ebfe253b369f85e0ebc995806349294af3ea7
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