(cd ..; make CFLAGS="-O2 -gnatN")


On ot.xml (old testament):
  3487163 bytes
  number of opening tags: 15933

Old parser (no optimization)
  ./testsax ot.xml > /dev/null  78.62s user 2.31s system 99% cpu 1:21.11 total

Old parser (compiled with -O2 -gnatN)
  ./testsax ot.xml > /dev/null  62.49s user 2.53s system 98% cpu 1:06.03 total

Old parser (compiled with -O2 -gnatN, no "debug_reader")
  ./testsax ot.xml > /dev/null  29.99s user 0.19s system 96% cpu 31.174 total

New parser (no optimization)
  ./testsax2 ot.xml > /dev/null  70.33s user 2.61s system 98% cpu 1:13.75 total
  ./testsax2 ot.xml > /dev/null  69.94s user 2.77s system 96% cpu 1:15.09 total

New parser (compiled with -O2 -gnatN)
  ./testsax2 ot.xml > /dev/null  52.93s user 1.95s system 99% cpu 55.255 total
 
New parser (compiled with -O2 -gnatN, no "debug_reader")
  ./testsax2 ot.xml > /dev/null  15.69s user 0.18s system 100% cpu 15.851 total


06/06/2002 (1Ghz, Linux 2.2, laptop hardrive)
==========

XMLAda 0.7.1
  same, with -O2 -gnatp -gnatN
  ./testsax ot.xml         12.57s user 0.98s system 73% cpu 18.473 total

Using GNAT.Spitbol for default attributes (no optimization)
  ./testsax ot.xml         19.07s user 0.93s system 97% cpu 20.462 total
  ./testsax -silent ot.xml  8.49s user 0.07s system 98% cpu 8.675 total

  same, with -O2 -gnatN
  ./testsax ot.xml         14.48s user 0.80s system 98% cpu 15.464 total
  ./testsax -silent ot.xml  5.84s user 0.08s system 99% cpu 5.971 total

  same, with -O2 -gnatN -gnatp
  ./testsax ot.xml         11.83s user 0.67s system 99% cpu 12.587 total
  ./testsax -silent ot.xml  4.13s user 0.05s system 97% cpu 4.270 total

Remove GNAT.Spitbol, replace by own table (no optimization)
  with -gnatVaMI  Initialize_Scalars
  ./testsax ot.xml         23.37s user 0.98s system 98% cpu 24.677 total
  ./testsax -silent ot.xml 12.08s user 0.07s system 98% cpu 12.299 total

  same, with -O2 -gnatN -gnatVaMI  Initialize_Scalars
  ./testsax ot.xml         16.68s user 0.82s system 98% cpu 17.718 total
  ./testsax -silent ot.xml  7.34s user 0.12s system 98% cpu 7.581 total

  same, with -O2 -gnatN -gnatp -gnatVaMI  Initialize_Scalars
  ./testsax ot.xml         11.43s user 0.95s system 98% cpu 12.589 total
  ./testsax -silent ot.xml  3.89s user 0.09s system 97% cpu 4.069 total

Replace function Unicode.Encode (returns String) with a procedure
  with -gnatVaMI  Initialize_Scalars
  ./testsax ot.xml          4.41s user 0.17s system 99% cpu 4.617 total
  ./testsax -silent ot.xml  3.74s user 0.08s system 97% cpu 3.913 total

  same with -O2 -gnatN -gnatVaMI  Initialize_Scalars
  ./testsax ot.xml          3.12s user 0.10s system 96% cpu 3.322 total
  ./testsax -silent ot.xml  2.35s user 0.08s system 99% cpu 2.452 total

  same with -O2 -gnatN -gnatp -gnatVaMI  Initialize_Scalars
  ./testsax ot.xml          2.24s user 0.07s system 99% cpu 2.314 total 
  ./testsax -silent ot.xml  1.64s user 0.04s system 98% cpu 1.698 total

Merge subprograms Unicode.Read and Unicode.Width
  with -gnatVaMI  Initialize_Scalars
  ./testsax ot.xml          4.63s user 0.14s system 99% cpu 4.797 total
  ./testsax -silent ot.xml  3.87s user 0.05s system 97% cpu 4.017 total

  same with -O2 -gnatN -gnatVaMI  Initialize_Scalars
  ./testsax ot.xml          3.01s user 0.09s system 100% cpu 3.088 total
  ./testsax -silent ot.xml  2.36s user 0.05s system 98% cpu 2.439 total

  same with -O2 -gnatN -gnatp -gnatVaMI  Initialize_Scalars
  ./testsax ot.xml          2.21s user 0.08s system 99% cpu 2.299 tota 
  ./testsax -silent ot.xml  1.56s user 0.05s system 99% cpu 1.611 total

  same with -O2 -gnatN -gnatp
  ./testsax ot.xml          2.08s user 0.10s system 98% cpu 2.213 total
  ./testsax -silent ot.xml  1.42s user 0.08s system 98% cpu 1.526 total