I have a standalone 4.2.0 RFT/GridFTP service and under certain
conditions I'm noticing a very low performance when submitting jobs
with globus-crft. I get reasonable/repeatable throughput when I use
rft/globus-url-copy so I know the link is good. The only time I do
get good throughput with globus-crft is when I use the "-ez" option.
can you send the conditions under which you get poor performance? and some
details of that poor perf?
So, my question is what is the difference when I specify an EPR file
and/or container contact string versus whatever magic the "-ez" option
invokes? Does anyone know what the default options "-ez" sets and how
I'd go about setting those within an EPR file. I mean, the "-ez"
option is easy by itself but it would be good to allow users to submit
jobs and walk away.
-ez is the same thing as using:
-r 32
-c 1
-m
-c
-s
-tb 2097152
if it is helping your performance my guess is it is due to the last option. that sets the
tcp-buffer size to 2MB. Use that in combination with whatever else you should see similar
performance in all cases.
Also, forgive my ignorance if some of this is elementary, I'm just
figuring much of this out. Can some suggest a link or additional
reading on what the EPR stuff does and how to use it for what I'm
doing?
