Caching of reads

Ian Campbell icampbell at arcom.co.uk
Fri Nov 16 10:37:10 EST 2001


Good afternoon,

I've checked the documentation and list archives and I can't find
anything which refers to my problem...

It seems as if reads from a JFFS2 file system are not being cached as we
would expect, for instance this small script:

while true ; do
sleep 1
done

causes a read from the flash every time the sleep is executed. This is
true even if the fs is mounted read only.

This is with a 2.4.14 kernel (and the JFFS2 therein), does anyone have
any clue as to what might be going on?

Thanks IA,
Ian.

-- 
Ian Campbell
Design Engineer

Arcom Control Systems Ltd,
Clifton Road,
Cambridge CB1 7EA
United Kingdom

Tel: +44 (0)1223 411200 ext. 3204
E-Mail: icampbell at arcom.co.uk
Web: http://www.arcomcontrols.com


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