Experimental Physics and
Industrial Control System

"Garrett D. Rinehart" <[email protected]> · Mon, 25 Oct 1999 11:10:44 -0500 (CDT)

Anyone know why my brand new mv172 takes minutes to write files to the host where the old mv162 did the same job in 
seconds? Even tiny 150 byte files take upwards of a minute sometimes.

These are text files BTW. The program writes the data fairly quickly, but then 
it just sits there. Doing repeated "ls" of the file, I can watch the file size 
growing, slowly. The instant it gets to its normal size, the program closes the 
file. So, where's the problem? The ioc reads files from this host just fine. 
Sometimes it writes them just fine too. Much more often than not, however, it 
takes WAY too long. Oh, and this acts the same on two different hosts, on two 
separate networks, and with two different iocs (different CPUs and all).

I'm also currious as to why this 172 can't manage to do as much work as the 162 
did. It'll do any part separately, but when I throw them all together, certain 
things (like a read/write out a serial port) quit. Any ideas? Are these problems 
related? I've directly replaced other iocs' mv167s with mv172s with great 
results. What's different here with this 162/172?

Thanks for any input.

Garrett Rinehart
Intense Pulsed Neutron Source
Argonne National Laboratory
9700 S. Cass Ave
Argonne, IL  60439
(630)252-6561

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System