[Dovecot] migration 1.2.5 -> 2.0.5 load increased dramatically

[Ralf Hildebrandt]

* Ralf Hildebrandt <Ralf.Hildebrandt at charite.de>:

> dovecot-lda invoke doveconf, which in turn needs a whooping 1.2s
> wallclock time to parse the config!

strace -c  /usr/dovecot-2/bin/doveconf

reports:

% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 91.02    0.504031      504031         1           wait4
  3.61    0.020001         833        24           brk
  2.17    0.012001       12001         1           execve
  1.44    0.008001        8001         1           clone
  0.80    0.004443         114        39        27 open
  0.69    0.003833         348        11           read
  0.27    0.001471         134        11           fstat64
  0.00    0.000000           0        60           write
  0.00    0.000000           0        17           close
...

So what is doveconf waiting for?

-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebrandt at charite.de | http://www.charite.de