-rwxr-xr-x 1 smurf user 412521 Feb 21 1996 XXX.eps
work:/uneu/urlichs 1243$ time cat XXX.eps >/dev/null
0.01user 0.22system 0:02.07elapsed 11%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+0minor)pagefaults 0swaps
work:/uneu/urlichs 1244$ time cat XXX.eps >/dev/null
0.02user 0.04system 0:00.08elapsed 75%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+0minor)pagefaults 0swaps
YOU tell me how to pull 5 MBytes/sec over a 10 MBit/sec Ethernet if you
don't believe me. :-)
> Is it correct how I see these things?
No.
> Why are filesystems not buffered?
Because initially, there were no file systems without a corresponding block
device, and buffering the whole device means fewer numbers to store. Plus,
the metadata on a file system obviously can't be cached in the file cache
because there's no file associated with them.
> Is there a nfs implementation that does buffering?
Yes. See above.
--
But we've only fondled the surface of that subject.
--Virginia Masters [of Master & Johnson]
--
Matthias Urlichs \ noris network GmbH / Xlink-POP Nürnberg
Schleiermacherstraße 12 \ Linux+Internet / EMail: urlichs@noris.de
90491 Nürnberg (Germany) \ Consulting+Programming+Networking+etc'ing
PGP: 1024/4F578875 1B 89 E2 1C 43 EA 80 44 15 D2 29 CF C6 C7 E0 DE
Click <A HREF="http://info.noris.de/~smurf/finger">here</A>. 42