Re: Xeon Quad Core (Was: Server Freezing Solid)
On Mon, Nov 24, 2008 at 10:49 PM, Chris Maness [EMAIL PROTECTED] wrote: Another thought. Would a Quad Core chip help with compiling applications -- or would it be the same as a dual core or single core chip running at the same clock speed because the compiler is running single thread? Would php processing be benefited by quad a quad core over a dual core. If not, then I guess I should just purchase a dual core chip and save the cabbage up front and wattage to boot. On the compiling front, when running make do this:make -j num of cores to speed up ure compiles. Ans no it probably wouldn't speed up individual runs of Php scrips/apps BUT it will allow you to run more parallel instances without a performance hit. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Xeon Quad Core (Was: Server Freezing Solid)
On Tue, Nov 25, 2008 at 3:11 AM, Josh Carroll [EMAIL PROTECTED] wrote: I always thought AMD was Intel compatible. In this case, it's the reverse. Intel's EM64T extensions are compatible with AMD's X86-64. Also don't forget that SSE5 instruction set for x86 was entirely designed by AMD. http://developer.amd.com/cpu/SSE5/Pages/default.aspx ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Xeon Quad Core (Was: Server Freezing Solid)
Since a Xeon Quad Core is a 64bit processor, would it work ok with FreeBSD? Or would the adm64 release be better for that chip? Thanks, Chris Maness ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Xeon Quad Core (Was: Server Freezing Solid)
On Mon, Nov 24, 2008 at 8:41 PM, Chris Maness [EMAIL PROTECTED] wrote: Since a Xeon Quad Core is a 64bit processor, would it work ok with FreeBSD? Or would the adm64 release be better for that chip? Hello Chris, I had a server with an Intel Xeon Quad Core CPU that was running FBSD 7.0 since the day 7.0 was released ( i386 ). Never had a problem with it. Yesterday i moved the server on FBSD 7.0 amd64 to use ZFS. Until now it works like a charm. a nice day, v Thanks, Chris Maness ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Xeon Quad Core (Was: Server Freezing Solid)
Chris Maness wrote: Since a Xeon Quad Core is a 64bit processor, would it work ok with FreeBSD? Or would the adm64 release be better for that chip? I would recommend using amd64 FreeBSD port in this case. Some applications are significantly faster in 64 bit mode than in 32 bit mode. Personally, I am useing amd64 FreeBSD on several Intel machines. Very good indeed. Greetings, O.K. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Xeon Quad Core (Was: Server Freezing Solid)
Since a Xeon Quad Core is a 64bit processor, would it work ok with FreeBSD? Or would the adm64 release be better for that chip? don't be suggested by amd in port name. it's for AMD64-compatible processor, for example your xeon ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Xeon Quad Core (Was: Server Freezing Solid)
Wojciech Puchar wrote: Since a Xeon Quad Core is a 64bit processor, would it work ok with FreeBSD? Or would the adm64 release be better for that chip? don't be suggested by amd in port name. it's for AMD64-compatible processor, for example your xeon Sorry, I wasn't very clear. I am currently running FreeBSD 7.0 the regular i386 release. I would prefer to keep it that way if migration to the 64bit release would mean rebuilding from scratch (there is probably an easier way to convert an i386 release to a amd64 release). Another poster seemed to indicate that the i386 release would run just fine on a quad core chip. Would there be a major performance gain with amd64 over that of the i386 build on a Xeon Quad Core? Sorry, all this stuff is rather new to me as I have been running ancient gear for a while. Chris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Xeon Quad Core (Was: Server Freezing Solid)
On Mon, Nov 24, 2008 at 11:37:25AM -0800, Chris Maness wrote: Wojciech Puchar wrote: Since a Xeon Quad Core is a 64bit processor, would it work ok with FreeBSD? Or would the adm64 release be better for that chip? don't be suggested by amd in port name. it's for AMD64-compatible processor, for example your xeon Sorry, I wasn't very clear. I am currently running FreeBSD 7.0 the regular i386 release. I would prefer to keep it that way if migration to the 64bit release would mean rebuilding from scratch You'll have to remove and re-install all ports to make them 64-bits as well. (there is probably an easier way to convert an i386 release to a amd64 release). Not really. You could do a cross-build to another partition, but you'd have to have one available. Another poster seemed to indicate that the i386 release would run just fine on a quad core chip. It should. Would there be a major performance gain with amd64 over that of the i386 build on a Xeon Quad Core? It will depend on your workload. If your machines were strapped fo address space on i386, switching to amd64 (with enough RAM) will help. In long (64-bit) mode, amd64 compatible CPUs have more registers available, so that will speed up things. On the other hand, pointers and longs are 64-bit numbers instead of 32-bit, which will make the code somewhat larger. Run some benchmarks that are relevant for you on i386 and re-run them after you've switched to amd64 to know for sure. I've been running amd64 since 5.4 on both Athlon64 and recently Core 2 Quad without problems. Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) pgp7WQwya00ZK.pgp Description: PGP signature
Re: Xeon Quad Core (Was: Server Freezing Solid)
Sorry, I wasn't very clear. I am currently running FreeBSD 7.0 the regular i386 release. I would prefer to keep it that way if migration to the 64bit release would mean rebuilding from scratch (there is probably an easier way to convert an i386 release to a amd64 release). Another poster seemed to indicate that the i386 release would run just fine on a quad core chip. Yes, i386 will run just fine on a 64-bit Xeon. And no, there isn't an easier (well, one could argue it's easy, but tedious) way to convert to an amd64 release. Would there be a major performance gain with amd64 over that of the i386 build on a Xeon Quad Core? It depends entirely on your workload. Some things benefit, others may actually slow down. One example that seems to benefit in general is multimedia type applications (e.g. media encoding/decoding/transcoding). Josh ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Xeon Quad Core (Was: Server Freezing Solid)
Roland Smith wrote: On Mon, Nov 24, 2008 at 11:37:25AM -0800, Chris Maness wrote: Wojciech Puchar wrote: Since a Xeon Quad Core is a 64bit processor, would it work ok with FreeBSD? Or would the adm64 release be better for that chip? don't be suggested by amd in port name. it's for AMD64-compatible processor, for example your xeon Sorry, I wasn't very clear. I am currently running FreeBSD 7.0 the regular i386 release. I would prefer to keep it that way if migration to the 64bit release would mean rebuilding from scratch You'll have to remove and re-install all ports to make them 64-bits as well. (there is probably an easier way to convert an i386 release to a amd64 release). Not really. You could do a cross-build to another partition, but you'd have to have one available. Another poster seemed to indicate that the i386 release would run just fine on a quad core chip. It should. Would there be a major performance gain with amd64 over that of the i386 build on a Xeon Quad Core? It will depend on your workload. If your machines were strapped fo address space on i386, switching to amd64 (with enough RAM) will help. In long (64-bit) mode, amd64 compatible CPUs have more registers available, so that will speed up things. On the other hand, pointers and longs are 64-bit numbers instead of 32-bit, which will make the code somewhat larger. Run some benchmarks that are relevant for you on i386 and re-run them after you've switched to amd64 to know for sure. I've been running amd64 since 5.4 on both Athlon64 and recently Core 2 Quad without problems. Roland Thanks guys. It is not a high load server, so I think sticking to i386 sounds like my best option. Chris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Xeon Quad Core (Was: Server Freezing Solid)
Roland Smith wrote: On Mon, Nov 24, 2008 at 11:37:25AM -0800, Chris Maness wrote: Wojciech Puchar wrote: Since a Xeon Quad Core is a 64bit processor, would it work ok with FreeBSD? Or would the adm64 release be better for that chip? don't be suggested by amd in port name. it's for AMD64-compatible processor, for example your xeon Sorry, I wasn't very clear. I am currently running FreeBSD 7.0 the regular i386 release. I would prefer to keep it that way if migration to the 64bit release would mean rebuilding from scratch You'll have to remove and re-install all ports to make them 64-bits as well. (there is probably an easier way to convert an i386 release to a amd64 release). Not really. You could do a cross-build to another partition, but you'd have to have one available. Another poster seemed to indicate that the i386 release would run just fine on a quad core chip. It should. Would there be a major performance gain with amd64 over that of the i386 build on a Xeon Quad Core? It will depend on your workload. If your machines were strapped fo address space on i386, switching to amd64 (with enough RAM) will help. In long (64-bit) mode, amd64 compatible CPUs have more registers available, so that will speed up things. On the other hand, pointers and longs are 64-bit numbers instead of 32-bit, which will make the code somewhat larger. Run some benchmarks that are relevant for you on i386 and re-run them after you've switched to amd64 to know for sure. I've been running amd64 since 5.4 on both Athlon64 and recently Core 2 Quad without problems. Roland Another thought. Would a Quad Core chip help with compiling applications -- or would it be the same as a dual core or single core chip running at the same clock speed because the compiler is running single thread? Would php processing be benefited by quad a quad core over a dual core. If not, then I guess I should just purchase a dual core chip and save the cabbage up front and wattage to boot. Thanks, Chris Maness ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Xeon Quad Core (Was: Server Freezing Solid)
On Mon, Nov 24, 2008 at 12:49:37PM -0800, Chris Maness wrote: Would there be a major performance gain with amd64 over that of the i386 build on a Xeon Quad Core? It will depend on your workload. If your machines were strapped fo address space on i386, switching to amd64 (with enough RAM) will help. In long (64-bit) mode, amd64 compatible CPUs have more registers available, so that will speed up things. On the other hand, pointers and longs are 64-bit numbers instead of 32-bit, which will make the code somewhat larger. Run some benchmarks that are relevant for you on i386 and re-run them after you've switched to amd64 to know for sure. snip Another thought. Would a Quad Core chip help with compiling applications -- or would it be the same as a dual core or single core chip running at the same clock speed because the compiler is running single thread? Again, it depends. If you have to compile a lot of C files via a Makefile without much interdependencies you could start make with the -j 8 flag so it can start 8 jobs concurrently. (The number of cores x 2 seems to be the best option). Would php processing be benefited by quad a quad core over a dual core. If not, then I guess I should just purchase a dual core chip and save the cabbage up front and wattage to boot. It could very well benefit. It depends where the bottleneck is in your current setup. It e.g. depends on how many apache and php instances you have running, and how you have compiled apache. Apache 22 is standard compiled with the prefork MPM, which starts 2 processes by default, and can start up to 16 IIRC (both numbers are configurable). A quad processor could make this run faster as long as the rest of the system can keep up. Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) pgphVIBHZkUDv.pgp Description: PGP signature
Re: Xeon Quad Core (Was: Server Freezing Solid)
I always thought AMD was Intel compatible. In this case, it's the reverse. Intel's EM64T extensions are compatible with AMD's X86-64. Josh ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
