Re: [Boost-users] Updated performance results using Boost Serialization 1.41

Subject: Re: [Boost-users] Updated performance results using Boost Serialization 1.41
From: Brian Wood (woodbrian77_at_[hidden])
Date: 2009-12-07 14:34:31

Kim Barrett writes:
>On Dec 4, 2009, at 7:11 PM, Hartmut Kaiser wrote:
>> Our measurements show Boost.Serialization spends most of its time
creating
>> (constructing) archives and there it's mainly initializing the locale...
>
> The locale initialization can be avoided if your application can get away
with using the
> boost::archive::no_codecvt construction flag. (Assuming that's still
behaving the same
> as when I looked into this performance area back around boost 1.33.)
>
> These threads may also be of interest:
>
> http://lists.boost.org/Archives/boost/2005/07/90814.php

Based on that link I tried it as follows:

   int const binary_archive_flags =
         boost::archive::no_header | boost::archive::no_codecvt;

  filebuf fb;
  fb.open("ofile", ios_base::out);
  binary_oarchive oa(fb, binary_archive_flags);

  clock_t start(clock());
  oa << lst;
  clock_t end(clock());

I didn't discern any improvement to the performance of this
test from adding those flags.

>  http://lists.boost.org/Archives/boost/2006/03/102133.php

I don't see how that is relevant.

>
> I keep promising myself that I will soon collect sufficient round tuits to
do something
> about this, but so far those promises remain broken. Maybe once I upgrade
my team to boost 1.41.

-- 
Brian Wood
Ebenezer Enterprises
http://www.webEbenezer.net