Re: [pgsql-advocacy] [HACKERS] [GENERAL] Postgresql AMD x86-64
Bruce Momjian writes: The following patch automatically enables 64-bit mode on AMD opteron. We already had spinlock support for it, but I added some comments. This sort of thing belongs into the template file, not directly in configure.in. -- Peter Eisentraut [EMAIL PROTECTED] ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster
Re: [pgsql-advocacy] [HACKERS] [GENERAL] Postgresql AMD x86-64
Peter Eisentraut wrote: Bruce Momjian writes: The following patch automatically enables 64-bit mode on AMD opteron. We already had spinlock support for it, but I added some comments. This sort of thing belongs into the template file, not directly in configure.in. I knew you were going to say that, but which template file? It is a product of the cpu/compiler, not a specific OS. -- Bruce Momjian| http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup.| Newtown Square, Pennsylvania 19073 ---(end of broadcast)--- TIP 2: you can get off all lists at once with the unregister command (send unregister YourEmailAddressHere to [EMAIL PROTECTED])
Re: [pgsql-advocacy] [HACKERS] [GENERAL] Postgresql AMD x86-64
Manfred Spraul wrote: Bruce Momjian wrote: if test $enable_debug = yes test $ac_cv_prog_cc_g = yes; then CFLAGS=$CFLAGS -g fi + + /* Compile AMD Opteron using gcc in 64-bit mode */ + if test $GCC = yes; then + case $host in + ia64-*) CFLAGS=$CFLAGS -m64 +LDFLAGS=$LDFLAGS -melf_x86_64;; + esac + fi + Sorry, I think I confused you: I am easily confused. It certainly makes more sense fir ia64 to be Intel, not AMD. :-) ia64-* is Intel's Itanium system. They are 64-bit only cpus (the 32-bit emulation is too slow to be usable). It's supported by multiple operating systems, among them HP UX, Linux, Windows. As far as I can see it's supported directly, by 7.3.3, at least RedHat builds their ia64 version without any patches. x86_64 is AMD's Operon/Athlon 64 system. They support concurrent 32-bit and 64-bit. Right now only supported by Linux, BSD and Windows support expected soon. Thus the test must be for x86_64-*. Martin: you are using debian-testing, correct? I've asked a Suse developer, and on their Linux distribution, -m64 is the default, i.e. you don't need any switches. I have applied the following patch to document the cpus supported by each define. Martin mentioned that he has applied a special 64-bit kit to do the compile, so perhaps he needs it, but most will not. I will keep the patch around and see if others need it during beta. -- Bruce Momjian| http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup.| Newtown Square, Pennsylvania 19073 Index: src/include/storage/s_lock.h === RCS file: /cvsroot/pgsql-server/src/include/storage/s_lock.h,v retrieving revision 1.109 diff -c -c -r1.109 s_lock.h *** src/include/storage/s_lock.h24 Jun 2003 23:20:08 - 1.109 --- src/include/storage/s_lock.h19 Jul 2003 14:10:19 - *** *** 94,100 */ ! #if defined(__i386__) || defined(__x86_64__) #define TAS(lock) tas(lock) static __inline__ int --- 94,100 */ ! #if defined(__i386__) || defined(__x86_64__) /* AMD Opteron */ #define TAS(lock) tas(lock) static __inline__ int *** *** 113,118 --- 113,119 #endif /* __i386__ || __x86_64__ */ + /* Intel Itanium */ #ifdef __ia64__ #define TAS(lock) tas(lock) ---(end of broadcast)--- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
Re: [pgsql-advocacy] [HACKERS] [GENERAL] Postgresql AMD x86-64
Bruce Momjian wrote: if test $enable_debug = yes test $ac_cv_prog_cc_g = yes; then CFLAGS=$CFLAGS -g fi + + /* Compile AMD Opteron using gcc in 64-bit mode */ + if test $GCC = yes; then + case $host in + ia64-*) CFLAGS=$CFLAGS -m64 +LDFLAGS=$LDFLAGS -melf_x86_64;; + esac + fi + Sorry, I think I confused you: ia64-* is Intel's Itanium system. They are 64-bit only cpus (the 32-bit emulation is too slow to be usable). It's supported by multiple operating systems, among them HP UX, Linux, Windows. As far as I can see it's supported directly, by 7.3.3, at least RedHat builds their ia64 version without any patches. x86_64 is AMD's Operon/Athlon 64 system. They support concurrent 32-bit and 64-bit. Right now only supported by Linux, BSD and Windows support expected soon. Thus the test must be for x86_64-*. Martin: you are using debian-testing, correct? I've asked a Suse developer, and on their Linux distribution, -m64 is the default, i.e. you don't need any switches. -- Manfred ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster
Re: [pgsql-advocacy] [HACKERS] [GENERAL] Postgresql AMD x86-64
The s_lock.h change will be in 7.4. --- Tom Lane wrote: Martin D. Weinberg [EMAIL PROTECTED] writes: I didn't change the source tree at all. I used: env CFLAGS='-O3 -m64' LD='/usr/bin/ld -melf_x86_64' ./configure --with-CXX --without-zlib BTW, see Jeff Baker's nearby report in pgsql-general that s_lock.h needs to be tweaked to use spinlocks on this platform. If you're using semaphores instead then you're taking a big performance hit. regards, tom lane ---(end of broadcast)--- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html -- Bruce Momjian| http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup.| Newtown Square, Pennsylvania 19073 ---(end of broadcast)--- TIP 2: you can get off all lists at once with the unregister command (send unregister YourEmailAddressHere to [EMAIL PROTECTED])
