It throws an error likes:Argument "" isn't numeric in addition (+) at
./strace_analyzer.pl line 310, <> line 409105.
   Have you experienced this? and resolved?

I think the parser could be improved. in this case, it seems to be choking on lines like:
23:34:13.502857 read(7, 0xbfffc670, 32) = -1 EAGAIN (Resource temporarily 
unavailable)

on 310, junk="unavailable" - the code should handle -1 specially,
since it shouldn't be accumulated to $ReadBytesTotal.

BTW:I've install the perl module strict and Getopt::long, and the tool
exhausts my laptop's memory(1.2G) while running.

I guess the code isn't intended to profile >409105-line traces on a laptop ;) it's a WIP, and stores a lot of stuff that it doesn't currently use, and
could probably be stored more compactly...

regards, mark hahn.
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