DosQueryPerformance interface

Name     A rexx interface to DosQueryPerformance 
Version  public release 1.0.0 (build 1) - May 25th,2001
Author   Takayuki 'January June' Suwa 
         (see EMail Addresses)
Distrib. Freeware 
Type     REXX DLL 
Price    -
Note     w/ source 
Source   Internet 
         Name: perfdll*.* 
         (see Internet - Web Pages)

Description from the author: 

"This software is a dynalink library that queries performance activity 
ratios (busy, idle and interrupt one) of overall system and each CPUs on 
32bit OS/2 process. This function is derived from DosPerfSysCall() API, 
but it is slightly complicated to issue this API directly: 

   *  Not all of 32bit OS/2 have DosPerfSysCall(). 
   *  Not all of 80386-compatible CPUs have RDTSC instruction. 
   *  It is necessary to determine # of CPUs to calculate overall system 
      acativity, in SMP environments. 
   *  More calculations are required to obtain activity ratios, because 
      queried results are raw snapshot of 64bit-wide RDTSC counters. 
 

 This DLL internally does such complex handlings of all above, thus you 
 can simply call one: DosQueryPerformance() :) 

 It can be used any 32bit development suites that can issue OS/2 APIs such 
 as emx/gcc, VisualAge C/C++ or Watcom C/C++, and REXX external function 
 interface is also supplied. 

 Free to use, under the GNU LGPL. "