[Doxygen-users] doxygen 1.8.9 (and also 1.8.7) extremely slow for vhdl

[Walter F.J. M. <w.f...@re...>]

Hi,

I'm using doxygen to generate a 'source code browser pages' for a
medium sized VHDL project. Some is publicly visible under
    http://www.retro11.de/doxy/w11/vhd/html/hierarchy.html
Total volume is
   ~   450 files
   ~ 85000 lines

With doxygen 1.8.7 it took about 32 sec to generate the files !

With doxygen 1.8.9 this slowed down to a snake-speed crawl. Even after
more than 18 CPU hours (!!) the files aren't done. The job  isn't hung,
it's very slowly progressing, one sees a new 'Generating docs' line
very few minutes. Resource consumption seems reasonable top gives

      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
      30  10  125660  73620   4688 R  99.8  1.8   1100:32 doxygen

I also tried doxygen 1.8.8, same observation, it proceeds, but at
a dreadfully slow pace.

In 1.8.8 the VHDL parser was changed, in 1.8.9 many VHDL fixes
were done. So my question:

    Does anybody else see such dramatic performance issues with
    doxygen 1.8.8/1.8.9 and VHDL ?


		With best regards, 	Walter