test9 not using buffers

From: Tom Holroyd (tomh@po.crl.go.jp)
Date: Wed Oct 11 2000 - 19:51:31 EST

Alpha DP264 (UP), SCSI, floppy

If I do a dd if=/dev/zero of=/tmp/moo count=100000, I don't see any
increase in buffers, as reported by vmstat. Furthermore, if I read from
/dev/fd0, it used to buffer the whole thing, so a second read would be
fast -- now it hits the floppy again.

I ran some fairly large things when I first booted, and swapped some stuff
out -- I don't know if this would've happened before. But now my buffers
number is way small:

   procs memory swap io system
 r b w swpd free buff cache si so bi bo in ...
 2 0 0 4568 444984 38008 141744 0 0 4 10 9 ...

and it won't grow much bigger than that no matter what I do.

What's up with buffers?


Dr. Tom Holroyd
"I am, as I said, inspired by the biological phenomena in which
chemical forces are used in repetitious fashion to produce all
kinds of weird effects (one of which is the author)."
        -- Richard Feynman, _There's Plenty of Room at the Bottom_

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This archive was generated by hypermail 2b29 : Sun Oct 15 2000 - 21:00:20 EST