[Koha-devel] page size & speed display

[Frederic Demians]

> (continuing investigations)
> I tried to investigate -d:DProf, but could not run a search with DProf.

opac-main.pl page profiling with Dprof give this result:

Total Elapsed Time = 1.573963 Seconds
  User+System Time = 1.503963 Seconds
Exclusive Times
%Time ExclSec CumulS #Calls sec/call Csec/c  Name
 15.2   0.229  0.348     24   0.0096 0.0145  XML::LibXML::_parse_sax_file
 7.85   0.118  0.160   2496   0.0000 0.0001  XML::Simple::collapse
 5.32   0.080  0.768     10   0.0080 0.0768  C4::Overdues::BEGIN
 3.99   0.060  0.060     17   0.0035 0.0035  utf8::SWASHNEW
 3.66   0.055  0.055   4776   0.0000 0.0000  XML::Simple::characters
 3.32   0.050  0.069      7   0.0071 0.0099  XML::LibXML::SAX::BEGIN
 3.32   0.050  0.099     15   0.0033 0.0066  C4::Context::BEGIN
 2.66   0.040  1.191     11   0.0036 0.1083  C4::Auth::BEGIN
 2.66   0.040  0.040     74   0.0005 0.0005  Exporter::export
 2.59   0.039  0.039    556   0.0001 0.0001  DBI::st::execute
 1.99   0.030  0.195      6   0.0050 0.0325  C4::Heading::BEGIN
 1.99   0.030  0.529      9   0.0033 0.0588  C4::Reserves::BEGIN
 1.99   0.030  1.350      9   0.0033 0.1500  main::BEGIN
 1.99   0.030  0.059    197   0.0002 0.0003  Exporter::import
 1.93   0.029  0.056    615   0.0000 0.0001  DBI::_new_sth


Correct me if I'm wrong but I fear that a huge amount of time is burnt 
just reading Koha XML config file (do you see anything else?) Koha 
config file being an XML file is a good thing. It's not even a problem 
if reading XML file in Perl is slow (could be for MARC records). But 
this file shouldn't be read over and over. It should be an 
application-level information loaded only once at Koha application 
startup. Same applies for sysprefs, even if it seems not to have the 
same incidence on performances.

So we come back to mod_perl which allow to define global 
(application/session) variables.

--
Frédéric



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