Date: Sat, 1 Jan 2000 17:12:26 +0000 From: Josef Karthauser <joe@pavilion.net> To: Leif Neland <leifn@neland.dk> Cc: Will Andrews <andrews@TECHNOLOGIST.COM>, Leif Neland <leif@neland.dk>, freebsd-ports@FreeBSD.ORG Subject: Re: 2 hours to compile mysql? Message-ID: <20000101171226.A41032@florence.pavilion.net> In-Reply-To: <Pine.BSF.4.05.10001011738001.63588-100000@arnold.neland.dk> References: <XFMail.000101110424.andrews@TECHNOLOGIST.COM> <Pine.BSF.4.05.10001011738001.63588-100000@arnold.neland.dk>
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On Sat, Jan 01, 2000 at 05:45:32PM +0100, Leif Neland wrote:
>
> Paul DuBois, paul@snake.net suggested the use of running configure
> --with-low-memory, perhaps the makefile could do that by itself, if it was
> defined what should be considered low memory.
>
I reckon it's a bug somewhere:
# uname -a
FreeBSD genius.systems.pavilion.net 4.0-CURRENT FreeBSD 4.0-CURRENT #30:
Sat Jan 1 02:22:53 GMT 2000
joe@genius.systems.pavilion.net:/usr/src/sys/compile/GENIUS i386
# make
[cut]
c++ -DMYSQL_SERVER -DDEFAULT_MYSQL_HOME="\"/usr/local\"" \
-DDATADIR="\"/var/db/mysql\"" \
-DSHAREDIR="\"/usr/local/share/mysql\"" \
-DHAVE_CONFIG_H -I./../include \
-I./../regex -I. -I../include -I.. -I. \
-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 \
-DDBUG_OFF -O -pipe -fno-implicit-templates -c sql_yacc.cc
[cut]
This burns processor and memory:
14142 root 52 0 156M 134M STOP 1:22 83.20% 82.37% cc1plus
But if I remove the '-O' option:
time c++ -DMYSQL_SERVER -DDEFAULT_MYSQL_HOME="\"/usr/local\"" \
-DDATADIR="\"/var/db/mysql\"" \
-DSHAREDIR="\"/usr/local/share/mysql\"" \
-DHAVE_CONFIG_H -I./../include \
-I./../regex -I. -I../include -I.. -I. \
-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 \
-DDBUG_OFF -pipe -fno-implicit-templates -c sql_yacc.cc
6.82s user 0.23s system 91% cpu 7.700 total
It takes 6.82 seconds and completes.
I conclude that there's an optimiser bug somewhere.
Joe
--
Josef Karthauser FreeBSD: Take the red pill and we'll show you just how
Technical Manager deep the rabbit hole goes. (http://www.uk.freebsd.org)
Pavilion Internet plc. [joe@pavilion.net, joe@freebsd.org, joe@tao.org.uk]
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