HD performance question
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Dear .debs,
I'm a minimalist and rolled my own kernel. It was absolutely bare
bones and that had a noticable effect on hard disk performance. So I
tinkered around a bit with kernel options and tested performance with
hdparm -tT. Now I'd like to know what all those numbers mean and if
they are reasonable (for my Dynabook SS S4/275PNHW).
I've repeated all tests five times and dropped outliers. With my
initial kernel I get
~110 MB/sec for buffer-cache reads
~ 2 MB/sec for buffered disk reads
After tinkering I get
~ 55 MB/sec for buffer-cache reads
~ 14 MB/sec for buffered disk reads
Question 1: Which of the two is "better" and why?
Question 2: Can I do better than this?
I still think hard disk performance is a bit slow but that may be just
me.
PS: I'm no hardware buff (in case you hadn't noticed :-)
- --
Olaf Meeuwissen
GnuPG key: 91114EAF/C3E1 2D40 C7CC AEB2 FB15 8BDF 60C2 5B3F 9111 4EAF
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