Thread
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pgsql-server/src/template bsdi freebsd netbsd ...
Bruce Momjian <momjian@svr1.postgresql.org> — 2003-10-09T04:34:02Z
CVSROOT: /cvsroot Module name: pgsql-server Changes by: momjian@svr1.postgresql.org 03/10/09 01:34:02 Modified files: src/template : bsdi freebsd netbsd openbsd qnx4 Log message: Re-add -pipe compile flags for bsd's.
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Re: pgsql-server/src/template bsdi freebsd netbsd ...
Neil Conway <neilc@samurai.com> — 2003-10-09T04:45:08Z
On Thu, 2003-10-09 at 00:34, Bruce Momjian wrote: > Re-add -pipe compile flags for bsd's. Is there a particular reason this flag is used for these platforms? (For one thing, -pipe certainly works with GCC on Linux.) -Neil
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Re: pgsql-server/src/template bsdi freebsd netbsd ...
Bruce Momjian <pgman@candle.pha.pa.us> — 2003-10-09T13:35:45Z
Neil Conway wrote: > On Thu, 2003-10-09 at 00:34, Bruce Momjian wrote: > > Re-add -pipe compile flags for bsd's. > > Is there a particular reason this flag is used for these platforms? > > (For one thing, -pipe certainly works with GCC on Linux.) I only put back what was already there --- not sure why others don't use it. You want it enabled on Linux? -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073
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Re: pgsql-server/src/template bsdi freebsd netbsd ...
Neil Conway <neilc@samurai.com> — 2003-10-09T14:40:41Z
On Thu, 2003-10-09 at 09:35, Bruce Momjian wrote: > I only put back what was already there --- not sure why others don't use > it. You want it enabled on Linux? Well, why do we have it enabled at all? If it's to speed compilation, we may as well enable it on other platforms where -pipe works, of which Linux is one. -Neil
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Re: [COMMITTERS] pgsql-server/src/template bsdi freebsd netbsd ...
Bruce Momjian <pgman@candle.pha.pa.us> — 2003-10-09T14:45:32Z
Neil Conway wrote: > On Thu, 2003-10-09 at 09:35, Bruce Momjian wrote: > > I only put back what was already there --- not sure why others don't use > > it. You want it enabled on Linux? > > Well, why do we have it enabled at all? If it's to speed compilation, we > may as well enable it on other platforms where -pipe works, of which > Linux is one. My gcc 2.95.3 manual says: -pipe Use pipes rather than temporary files for communi- cation between the various stages of compilation. This fails to work on some systems where the assem- bler cannot read from a pipe; but the GNU assembler has no trouble. so it looks like we can't use it on all platforms without testing. I will enable it for linux. Do people want to test other platforms? -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 -
Re: [COMMITTERS] pgsql-server/src/template bsdi freebsd
Peter Eisentraut <peter_e@gmx.net> — 2003-10-09T16:46:21Z
Bruce Momjian writes: > > Well, why do we have it enabled at all? If it's to speed compilation, we > > may as well enable it on other platforms where -pipe works, of which > > Linux is one. On my (Linux) system, no -pipe is always faster than -pipe. > so it looks like we can't use it on all platforms without testing. I > will enable it for linux. Do people want to test other platforms? I request the change for Linux to be reverted. -- Peter Eisentraut peter_e@gmx.net
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Re: [COMMITTERS] pgsql-server/src/template bsdi freebsd netbsd
Bruce Momjian <pgman@candle.pha.pa.us> — 2003-10-09T16:53:01Z
Peter Eisentraut wrote: > Bruce Momjian writes: > > > > Well, why do we have it enabled at all? If it's to speed compilation, we > > > may as well enable it on other platforms where -pipe works, of which > > > Linux is one. > > On my (Linux) system, no -pipe is always faster than -pipe. > > > so it looks like we can't use it on all platforms without testing. I > > will enable it for linux. Do people want to test other platforms? > > I request the change for Linux to be reverted. Done. Let me test BSD/OS now that you mention it. :-) -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073
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Re: [COMMITTERS] pgsql-server/src/template bsdi freebsd
Henry B. Hotz <hotz@jpl.nasa.gov> — 2003-10-09T16:58:12Z
At 10:45 AM -0400 10/9/03, Bruce Momjian wrote: >Neil Conway wrote: >> On Thu, 2003-10-09 at 09:35, Bruce Momjian wrote: >> > I only put back what was already there --- not sure why others don't use >> > it. You want it enabled on Linux? >> >> Well, why do we have it enabled at all? If it's to speed compilation, we >> may as well enable it on other platforms where -pipe works, of which >> Linux is one. > >My gcc 2.95.3 manual says: > > -pipe Use pipes rather than temporary files for communi- > cation between the various stages of compilation. > This fails to work on some systems where the assem- > bler cannot read from a pipe; but the GNU assembler > has no trouble. > >so it looks like we can't use it on all platforms without testing. I >will enable it for linux. Do people want to test other platforms? It should work on any platform that uses the GNU tools, so that means *BSD is in the same boat as Linux. Does it really speed compilation though? I saw somewhere that it didn't make much difference and might even hurt sometimes. -- The opinions expressed in this message are mine, not those of Caltech, JPL, NASA, or the US Government. Henry.B.Hotz@jpl.nasa.gov, or hbhotz@oxy.edu
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Re: [COMMITTERS] pgsql-server/src/template bsdi freebsd
Bruce Momjian <pgman@candle.pha.pa.us> — 2003-10-09T17:10:56Z
Henry B. Hotz wrote: > >> Well, why do we have it enabled at all? If it's to speed compilation, we > >> may as well enable it on other platforms where -pipe works, of which > >> Linux is one. > > > >My gcc 2.95.3 manual says: > > > > -pipe Use pipes rather than temporary files for communi- > > cation between the various stages of compilation. > > This fails to work on some systems where the assem- > > bler cannot read from a pipe; but the GNU assembler > > has no trouble. > > > >so it looks like we can't use it on all platforms without testing. I > >will enable it for linux. Do people want to test other platforms? > > It should work on any platform that uses the GNU tools, so that means > *BSD is in the same boat as Linux. > > Does it really speed compilation though? I saw somewhere that it > didn't make much difference and might even hurt sometimes. I saw a 5 second improvement with -pipe on a 150 second full compile of PostgreSQL. However, I have a MFS /tmp. I suppose if I didn't, it would be slower. However, the difference is so small as to be meaningless. Can someone else test on another *BSD and report? -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073
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Re: [HACKERS] [COMMITTERS] pgsql-server/src/template bsdi
Jan Wieck <janwieck@yahoo.com> — 2003-10-09T18:44:07Z
Bruce Momjian wrote: > Henry B. Hotz wrote: >> >> Well, why do we have it enabled at all? If it's to speed compilation, we >> >> may as well enable it on other platforms where -pipe works, of which >> >> Linux is one. >> > >> >My gcc 2.95.3 manual says: >> > >> > -pipe Use pipes rather than temporary files for communi- >> > cation between the various stages of compilation. >> > This fails to work on some systems where the assem- >> > bler cannot read from a pipe; but the GNU assembler >> > has no trouble. >> > >> >so it looks like we can't use it on all platforms without testing. I >> >will enable it for linux. Do people want to test other platforms? >> >> It should work on any platform that uses the GNU tools, so that means >> *BSD is in the same boat as Linux. >> >> Does it really speed compilation though? I saw somewhere that it >> didn't make much difference and might even hurt sometimes. > > I saw a 5 second improvement with -pipe on a 150 second full compile of > PostgreSQL. However, I have a MFS /tmp. I suppose if I didn't, it > would be slower. However, the difference is so small as to be > meaningless. Can someone else test on another *BSD and report? > Also, IIRC you have a dual processor box. In that case using -pipe helps to utilize 2 CPU's (not much though), whereas on a single CPU system it forces extra context switches that aren't necessary when running the stages sequential. Jan -- #======================================================================# # It's easier to get forgiveness for being wrong than for being right. # # Let's break this rule - forgive me. # #================================================== JanWieck@Yahoo.com #
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Re: [HACKERS] [COMMITTERS] pgsql-server/src/template bsdi
Bruce Momjian <pgman@candle.pha.pa.us> — 2003-10-09T19:05:28Z
Jan Wieck wrote: > >> >My gcc 2.95.3 manual says: > >> > > >> > -pipe Use pipes rather than temporary files for communi- > >> > cation between the various stages of compilation. > >> > This fails to work on some systems where the assem- > >> > bler cannot read from a pipe; but the GNU assembler > >> > has no trouble. > >> > > >> >so it looks like we can't use it on all platforms without testing. I > >> >will enable it for linux. Do people want to test other platforms? > >> > >> It should work on any platform that uses the GNU tools, so that means > >> *BSD is in the same boat as Linux. > >> > >> Does it really speed compilation though? I saw somewhere that it > >> didn't make much difference and might even hurt sometimes. > > > > I saw a 5 second improvement with -pipe on a 150 second full compile of > > PostgreSQL. However, I have a MFS /tmp. I suppose if I didn't, it > > would be slower. However, the difference is so small as to be > > meaningless. Can someone else test on another *BSD and report? > > > > Also, IIRC you have a dual processor box. In that case using -pipe helps > to utilize 2 CPU's (not much though), whereas on a single CPU system it > forces extra context switches that aren't necessary when running the > stages sequential. Oh, OK. I am on a dual, so maybe that's why I see an improvement. If I can get another BSD guy to test this, I can remove the pipe for all the BSD's. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073
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Re: [HACKERS] [COMMITTERS] pgsql-server/src/template bsdi
Sean Chittenden <sean@chittenden.org> — 2003-10-09T21:11:27Z
> Oh, OK. I am on a dual, so maybe that's why I see an improvement. > If I can get another BSD guy to test this, I can remove the pipe for > all the BSD's. When benchmarking FreeBSD via worldstone, -pipe makes a difference (how much remains a debate). Since PostgreSQL's compile is small enough, it's likely that many folks won't notice any appreciable difference (though it does add up). Here's a thread worth reading from the gcc guys: http://gcc.gnu.org/ml/gcc-bugs/2000-10/msg00138.html -sc -- Sean Chittenden
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Re: [HACKERS] [COMMITTERS] pgsql-server/src/template bsdi
Bruce Momjian <pgman@candle.pha.pa.us> — 2003-10-09T22:56:09Z
Sean Chittenden wrote: > > Oh, OK. I am on a dual, so maybe that's why I see an improvement. > > If I can get another BSD guy to test this, I can remove the pipe for > > all the BSD's. > > When benchmarking FreeBSD via worldstone, -pipe makes a difference > (how much remains a debate). Since PostgreSQL's compile is small > enough, it's likely that many folks won't notice any appreciable > difference (though it does add up). Here's a thread worth reading > from the gcc guys: > > http://gcc.gnu.org/ml/gcc-bugs/2000-10/msg00138.html Thanks. "-pipe" removed from all compiles. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073
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Re: [HACKERS] [COMMITTERS] pgsql-server/src/template bsdi freebsd netbsd ...
Philip Yarra <philip@utiba.com> — 2003-10-10T00:14:49Z
On Fri, 10 Oct 2003 12:45 am, Bruce Momjian wrote: > My gcc 2.95.3 manual says: > > -pipe Use pipes rather than temporary files for communi- > [snip] > so it looks like we can't use it on all platforms without testing. I > will enable it for linux. Do people want to test other platforms? I saw your message that it was disabled for all builds (I assume you meant "all", not "all BSDs"), but for the sake of completeness: $ uname -a OSF1 hostname V4.0 1229 alpha $ cc -pipe main.c ld: -pipe: Unknown flag ld: Usage: ld [options] file [...] $ gcc -pipe main.c as: Error: no source, object or ucode file specified main.c:46: output pipe has been closed Regards, Philip Yarra.
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Re: [HACKERS] [COMMITTERS] pgsql-server/src/template bsdi freebsd netbsd
Bruce Momjian <pgman@candle.pha.pa.us> — 2003-10-10T00:20:04Z
Philip Yarra wrote: > On Fri, 10 Oct 2003 12:45 am, Bruce Momjian wrote: > > My gcc 2.95.3 manual says: > > > > -pipe Use pipes rather than temporary files for communi- > > [snip] > > so it looks like we can't use it on all platforms without testing. I > > will enable it for linux. Do people want to test other platforms? > > I saw your message that it was disabled for all builds (I assume you meant > "all", not "all BSDs"), but for the sake of completeness: > > $ uname -a > OSF1 hostname V4.0 1229 alpha > $ cc -pipe main.c > ld: > -pipe: Unknown flag > ld: Usage: ld [options] file [...] > $ gcc -pipe main.c > as: Error: no source, object or ucode file specified > main.c:46: output pipe has been closed Right. It was only enabled on BSD's in the code, so I just removed that. It didn't exist in any other builds. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073