Have any of you noticed poor performance in SDSF when you use the SB or SE 
action characters to view a running job's output? 

When I do a FIND in a job with only 666 lines, it takes at least 6 seconds 
to respond. Compare that with subsecond response for the same FIND command 
when using the S action character to view the same output. If you are 
looking at a job with a significant number of lines of output, you may as 
well come back after lunch! The initial entry to view the job's output 
with SB or SE is also very slow.

This poor performance only occurs when viewing the output from a job that 
is running. For jobs that have ended, performance is normal.

We see this on both z/OS 1.4 and 1.7. It doesn't make any difference 
whether we look at job output from the DA panel or the ST panel.

Regards,
Fred Schmidt

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