speed with memory mapping (Word)
brissing at vexcel.com
Wed Sep 22 15:59:25 GMT 1999
I am running Windows NT Terminal Server w/ Citrix MetaFrame
1.8. I am mounting UNIX users home directories to the NT world via
Samba 2.0.3. When I copy a 20MB or larger file in the explorer,
Samba's performance is great. However, if I want to open a 20MB MS
Word document Samba's performance drops below the floor.
I assume that MS Word memory maps to the file on the share,
because my terminal server's memory usage does not increase
dramatically. In the NT performance monitor, I see that NT
acknowledges Network I/O and Paging time (no time using the local
disks). When a user saves a 20MB file, NT gives a huge chunk of time
to the network operation and lags the whole server for ~8 minutes.
In the performance monitor I see a spike of Network I/O and Paging
about every 5 seconds (not a constant write).
Is there something I can tweak to improve this? I also find
that logging off and storing our profiles in our Samba mounted home
directories is VERY slow (same deal, a spike ~5/sec.). The servers
CPUs remain idle during saves/logouts.
My log file does not show any entries when I save files and
get this behavior. What level do I need to set it to to catch a
glimpse of what's happening?
. . . . . . . . ooo . . . . ooo . . . . . . . . .
. Dean Brissinger - Systems Administrator .
. Direct: 303-583-0278 Main: 303-444-0094 .
. Fax: 303-444-0470 http://www.vexcel.com/ .
. . . . . . . oOOo . . A . . oOOo . . . . . . . .
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