Unacceptable behavior -- slowing down script execution
Fri Sep 17 17:22:00 GMT 2010
Through fits and starts, and with no more feedback from the list than
Dave Korn's self-admitted "wild guess" about gcclib1 folders etc, my
Cygwin is no longer shedding empty shell stack-dump files like dandruff.
But certain things are continuing to alarm me. I'll put them in the form
of questions and whoever knows the answers, please take the time to do so.
1. Is it normal behavior, once rxvt is launched, for cmd.exe to remain
running as a process?
2. Using a batch-to-executable utility, I converted a customized
rxvt-launching .bat file into an executable. Should this also stay open
as a process in Task Manager once its work is done?
3. Is it normal behavior for one BASH script to spawn more than one
4. Is it normal for any script to run CPU usage up to 100%?
I have a script that I ran in GNOME Terminal less than an hour ago. I
"time"d it -- the return was 20.6 seconds on the first line (real?). I
ran the same script fifteen minutes later, evaluating identical files of
the same type, length (5.37kb and 345b ASCII text) and time stamp, and
after 7 minutes it was barely one-eighth complete. That's when I checked
Task Manager and found my CPU usage was at 100% and three bash.exe's
were running simultaneously. Admittedly the script calls on several
externals, but considering the difference in completion times -- I
estimate that had I not interrupted the process with ctrl-c, the Cygwin
run would have taken just under 40 minutes to finish -- _and the fact
that it spawned an unusual number of subshells, it doesn't speak highly
for Cygwin as a viable option or means for people to "keep their hand
in" w/re their Unix skill-sets.
5. Is this a bug peculiar to this version/build of Cygwin? I don't
recall any such issues when running complicated scripts before 1.7.x.
Hoping someone can answer any or all of the foregoing.
Cheers, SJ Wright
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