From: | dg(at)illustra(dot)com (David Gould) |
---|---|
To: | maillist(at)candle(dot)pha(dot)pa(dot)us (Bruce Momjian) |
Cc: | hackers(at)postgreSQL(dot)org |
Subject: | Re: [HACKERS] Problem after removal of exec(), help |
Date: | 1998-06-23 18:22:27 |
Message-ID: | 9806231822.AA10502@hawk.illustra.com |
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Thread: | |
Lists: | pgsql-hackers |
>
> > No help here, but a request:
> >
> > Could we have an option to do the fork()/exec() the old way as well as the
> > new sleek fork() only. I want to do some performance testing under gprof and
> > want to be able to replace my postgres binary with a shell script to save
> > the gmon.out file eg:
> >
> > #!/bin/sh
> > postgres.bin $*
> > mv gmon.out gmon.$$
> >
> > This won't work unless and exec() is done.
>
> I am confused. What doesn't work without the exec()?
Replacing the postgres binary with a shell script that executes the real
postgres binary and then moves the gmon.out file out of the way.
$ mv postgres postgres.bin
$cat > postgres
#!/bin/sh
postgres.bin $*
mv gmon.out gmon.$$
^D
$ postmaster ...
$ psql template1
-dg
David Gould dg(at)illustra(dot)com 510.628.3783 or 510.305.9468
Informix Software 300 Lakeside Drive Oakland, CA 94612
- A child of five could understand this! Fetch me a child of five.
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