| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
| Cc: | Nikhil Sontakke <nikhil(dot)sontakke(at)enterprisedb(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: gcc: why optimize for size flag is not the default |
| Date: | 2009-03-11 12:42:41 |
| Message-ID: | 26016.1236775361@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> writes:
> Nikhil Sontakke wrote:
>> I was wondering why -Os is not used in place of -O2 while compiling the
>> Postgres sources with gcc.
> There's no free lunch.
In any case, this sort of choice is generally something that ought to be
applied at a distro level. If, say, Fedora or Debian chose to use -Os
uniformly across all their packages, then there might be a meaningful
amount of space saved in the aggregate. As far as I know, though, -Os
is not the preferred choice in any distro, which ought to tell you
something ...
regards, tom lane
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