Erik Huelsmann wrote in a message to all:

 EH> Is there any tool under OS/2 that lets me profile my newly 
 EH> written applications? I want to make some changes to my program 
 EH> (to speed it up hopefully), but I am not sure it will be faster 
 EH> with then before. So I am looking for tools... 

The Watcom C++ compiler comes with an execution profiler which produces
fairly accurate results as long as the "-d1" switch is used to
put line number debug information into the executable.

LXOPT is a third party tool that can tune OS/2 LX-format executables in
fairly sophisticated ways, including grouping concurrently accessed data on
the same memory page to reduce swapping.  I believe IBM uses LXOPT to tune
OS/2 itself.
 
-- Mike


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