Re: Xeon on Linux
Seem to work fine here. I am running three Xeon Netfinity Servers X250 series. 2 have the 2.4.18 kernel running with ext3 while one is just an almost default install of Redhat. None of them had any problems so far. But, for the price/performance the dual P-III 1G would be better. How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Any suggestions appreciated. - Looking forward to the Open-Source version of the Oxford English Dictionary ? - Ted Knab -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
Seem to work fine here. I am running three Xeon Netfinity Servers X250 series. 2 have the 2.4.18 kernel running with ext3 while one is just an almost default install of Redhat. None of them had any problems so far. But, for the price/performance the dual P-III 1G would be better. How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Any suggestions appreciated. - Looking forward to the Open-Source version of the Oxford English Dictionary ? - Ted Knab -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
One thing, I would not go with a Xeon, only if I was planning a quad then perhaps. When you run many concurrent processes, the cache utilization goes down since you do so much context switching. Granted that recent kernels have improved much, but since you still dont have fully associative cache memories, there will be a lot of cache competition and subsequent cache flushes.. with 4+ cpu's this changes and the performance gain begins to be noticeable.. Hyperthreading do help a little bit, but not by that much.. My suggestion is go with a 2CPU Athlon or P4 system.. Compared to Xeons they are fairly cheap, and you will only loose performance in the order or 1-2%. Regards Roger Abrahamsson Cameron Moore wrote: * [EMAIL PROTECTED] (Patrick Hsieh) [2002.05.28 22:28]: How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Consider the following pages: http://www.intel.com/eBusiness/products/server/processor/ http://www.intel.com/eBusiness/pdf/prod/server/xeon/wp020901.pdf According to that white paper, the Xeon's new Hyper-Threading technology that they're bragging about should show benefits without modifications to current apps, but they say the threading scheme makes a big difference. Having said that, unless there are some kernel developers on this list, I'd suggest searching the linux-kernel list archives for an answer or getting up the nerve to ask the kernel gurus yourself. Heck, you may even make kernel-traffic. :-) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
On Wed, 29 May 2002 06:18, Cameron Moore wrote: * [EMAIL PROTECTED] (Patrick Hsieh) [2002.05.28 22:28]: How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Consider the following pages: http://www.intel.com/eBusiness/products/server/processor/ http://www.intel.com/eBusiness/pdf/prod/server/xeon/wp020901.pdf According to that white paper, the Xeon's new Hyper-Threading technology that they're bragging about should show benefits without modifications to current apps, but they say the threading scheme makes a But it requires modifications to the OS, modifications which (AFAIK) have not been done for Linux (yet). Also as has been previously noted multi-processing raises caching and locking issues which will degrade system performance in some areas, and some applications are incapable of taking advantage of SMP. As a general rule 2*1GHz processors will deliver less performance than 1*2GHz processor even if the applications can take advantage of SMP! Also it appears from Intel's web site that a processor designed for non-SMP use can be obtained at a higher clock rate than an SMP capable processor... I don't think that 2 CPUs is a benefit. If you've got an option of 4+ CPUs then it may be worth having though. -- I do not get viruses because I do not use MS software. If you use Outlook then please do not put my email address in your address-book so that WHEN you get a virus it won't use my address in the From field. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
Patrick Hsieh wrote: Hello Glenn Hocking [EMAIL PROTECTED], I am planing to run MySQL on either dual P3-1G or single Xeon 2.2G. The main board is smp architecture, therefore I may add another Xeon CPU in the future. I think MySQL has no problem on smp architecture, right? Just difficult to make the decision. MySQL has no problem on smp architecture, I run it on a dual pIII-1.2GHz without problems. -- Cedric Gavage [EMAIL PROTECTED]-o) | http://www.unixtech.be - http://eauzone.be /\\ | _\_v | --' -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
* [EMAIL PROTECTED] (Patrick Hsieh) [2002.05.28 22:28]: How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Consider the following pages: http://www.intel.com/eBusiness/products/server/processor/ http://www.intel.com/eBusiness/pdf/prod/server/xeon/wp020901.pdf According to that white paper, the Xeon's new Hyper-Threading technology that they're bragging about should show benefits without modifications to current apps, but they say the threading scheme makes a big difference. Having said that, unless there are some kernel developers on this list, I'd suggest searching the linux-kernel list archives for an answer or getting up the nerve to ask the kernel gurus yourself. Heck, you may even make kernel-traffic. :-) -- Cameron Moore [ Why is a carrot more orange than an orange? ] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
One thing, I would not go with a Xeon, only if I was planning a quad then perhaps. When you run many concurrent processes, the cache utilization goes down since you do so much context switching. Granted that recent kernels have improved much, but since you still dont have fully associative cache memories, there will be a lot of cache competition and subsequent cache flushes.. with 4+ cpu's this changes and the performance gain begins to be noticeable.. Hyperthreading do help a little bit, but not by that much.. My suggestion is go with a 2CPU Athlon or P4 system.. Compared to Xeons they are fairly cheap, and you will only loose performance in the order or 1-2%. Regards Roger Abrahamsson Cameron Moore wrote: * [EMAIL PROTECTED] (Patrick Hsieh) [2002.05.28 22:28]: How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Consider the following pages: http://www.intel.com/eBusiness/products/server/processor/ http://www.intel.com/eBusiness/pdf/prod/server/xeon/wp020901.pdf According to that white paper, the Xeon's new Hyper-Threading technology that they're bragging about should show benefits without modifications to current apps, but they say the threading scheme makes a big difference. Having said that, unless there are some kernel developers on this list, I'd suggest searching the linux-kernel list archives for an answer or getting up the nerve to ask the kernel gurus yourself. Heck, you may even make kernel-traffic. :-) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
On Wed, 29 May 2002 06:18, Cameron Moore wrote: * [EMAIL PROTECTED] (Patrick Hsieh) [2002.05.28 22:28]: How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Consider the following pages: http://www.intel.com/eBusiness/products/server/processor/ http://www.intel.com/eBusiness/pdf/prod/server/xeon/wp020901.pdf According to that white paper, the Xeon's new Hyper-Threading technology that they're bragging about should show benefits without modifications to current apps, but they say the threading scheme makes a But it requires modifications to the OS, modifications which (AFAIK) have not been done for Linux (yet). Also as has been previously noted multi-processing raises caching and locking issues which will degrade system performance in some areas, and some applications are incapable of taking advantage of SMP. As a general rule 2*1GHz processors will deliver less performance than 1*2GHz processor even if the applications can take advantage of SMP! Also it appears from Intel's web site that a processor designed for non-SMP use can be obtained at a higher clock rate than an SMP capable processor... I don't think that 2 CPUs is a benefit. If you've got an option of 4+ CPUs then it may be worth having though. -- I do not get viruses because I do not use MS software. If you use Outlook then please do not put my email address in your address-book so that WHEN you get a virus it won't use my address in the From field. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
Patrick Hsieh wrote: Hello Glenn Hocking [EMAIL PROTECTED], I am planing to run MySQL on either dual P3-1G or single Xeon 2.2G. The main board is smp architecture, therefore I may add another Xeon CPU in the future. I think MySQL has no problem on smp architecture, right? Just difficult to make the decision. MySQL has no problem on smp architecture, I run it on a dual pIII-1.2GHz without problems. -- Cedric Gavage [EMAIL PROTECTED]-o) | http://www.unixtech.be - http://eauzone.be /\\ | _\_v | --' -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
Hi Patrick Not sure on Linux Kernels for the Xeon, but a few packages don't run the best on dual processor systems. From what I understand, bind 8 will run on dual processor but won't ever use the second processor, so in this case the faster single processor system would be my choice. However a dual system would be good for a system running many services. What application is the server for? Cheers Glenn Hocking Publish Media Pty Ltd http://www.sitegeneral.com/ Patrick Hsieh wrote: Hello, How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Any suggestions appreciated. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
Hello Glenn Hocking [EMAIL PROTECTED], I am planing to run MySQL on either dual P3-1G or single Xeon 2.2G. The main board is smp architecture, therefore I may add another Xeon CPU in the future. I think MySQL has no problem on smp architecture, right? Just difficult to make the decision. On Wed, 29 May 2002 13:40:26 +1000 Glenn Hocking [EMAIL PROTECTED] wrote: Hi Patrick Not sure on Linux Kernels for the Xeon, but a few packages don't run the best on dual processor systems. From what I understand, bind 8 will run on dual processor but won't ever use the second processor, so in this case the faster single processor system would be my choice. However a dual system would be good for a system running many services. What application is the server for? Cheers Glenn Hocking Publish Media Pty Ltd http://www.sitegeneral.com/ Patrick Hsieh wrote: Hello, How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Any suggestions appreciated. -- Patrick Hsieh [EMAIL PROTECTED] GPG public key http://pahud.net/pubkeys/pahudatpahud.gpg -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
Hello AJ Prowant [EMAIL PROTECTED], How do you compile Linux kernel to optimize Xeon? On Tue, 28 May 2002 22:44:15 -0500 AJ Prowant [EMAIL PROTECTED] wrote: Works great. We have a quad xeon running as our ldap server and its been rock stable running woody. On Wed, May 29, 2002 at 11:28:47AM +0800, Patrick Hsieh wrote: Hello, How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Any suggestions appreciated. -- Patrick Hsieh [EMAIL PROTECTED] GPG public key http://pahud.net/pubkeys/pahudatpahud.gpg -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- AJ Prowant Systems Engineer CoreComm Limited -- Patrick Hsieh [EMAIL PROTECTED] GPG public key http://pahud.net/pubkeys/pahudatpahud.gpg -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
* [EMAIL PROTECTED] (Patrick Hsieh) [2002.05.28 22:28]: How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Consider the following pages: http://www.intel.com/eBusiness/products/server/processor/ http://www.intel.com/eBusiness/pdf/prod/server/xeon/wp020901.pdf According to that white paper, the Xeon's new Hyper-Threading technology that they're bragging about should show benefits without modifications to current apps, but they say the threading scheme makes a big difference. Having said that, unless there are some kernel developers on this list, I'd suggest searching the linux-kernel list archives for an answer or getting up the nerve to ask the kernel gurus yourself. Heck, you may even make kernel-traffic. :-) -- Cameron Moore [ Why is a carrot more orange than an orange? ] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
Hi Patrick Not sure on Linux Kernels for the Xeon, but a few packages don't run the best on dual processor systems. From what I understand, bind 8 will run on dual processor but won't ever use the second processor, so in this case the faster single processor system would be my choice. However a dual system would be good for a system running many services. What application is the server for? Cheers Glenn Hocking Publish Media Pty Ltd http://www.sitegeneral.com/ Patrick Hsieh wrote: Hello, How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Any suggestions appreciated. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
Hello Glenn Hocking [EMAIL PROTECTED], I am planing to run MySQL on either dual P3-1G or single Xeon 2.2G. The main board is smp architecture, therefore I may add another Xeon CPU in the future. I think MySQL has no problem on smp architecture, right? Just difficult to make the decision. On Wed, 29 May 2002 13:40:26 +1000 Glenn Hocking [EMAIL PROTECTED] wrote: Hi Patrick Not sure on Linux Kernels for the Xeon, but a few packages don't run the best on dual processor systems. From what I understand, bind 8 will run on dual processor but won't ever use the second processor, so in this case the faster single processor system would be my choice. However a dual system would be good for a system running many services. What application is the server for? Cheers Glenn Hocking Publish Media Pty Ltd http://www.sitegeneral.com/ Patrick Hsieh wrote: Hello, How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Any suggestions appreciated. -- Patrick Hsieh [EMAIL PROTECTED] GPG public key http://pahud.net/pubkeys/pahudatpahud.gpg -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
Hello AJ Prowant [EMAIL PROTECTED], How do you compile Linux kernel to optimize Xeon? On Tue, 28 May 2002 22:44:15 -0500 AJ Prowant [EMAIL PROTECTED] wrote: Works great. We have a quad xeon running as our ldap server and its been rock stable running woody. On Wed, May 29, 2002 at 11:28:47AM +0800, Patrick Hsieh wrote: Hello, How does Linux support Xeon CPU currently? I am considering to use dual P-III 1G or single Xeon 2.2G architecture. Any suggestions appreciated. -- Patrick Hsieh [EMAIL PROTECTED] GPG public key http://pahud.net/pubkeys/pahudatpahud.gpg -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- AJ Prowant Systems Engineer CoreComm Limited -- Patrick Hsieh [EMAIL PROTECTED] GPG public key http://pahud.net/pubkeys/pahudatpahud.gpg -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Xeon on Linux
Hi Patrick I'd go for the Faster Xeon then. The dual P3 will never run faster than 1Gig but by the sounds of it you can always plug in more 2.2Gig Xeons :-) With regards to Linux on the Xeon, at worst you will be able to run the standard kernel and still get much more speed than the same clock speed P3 or P4 however I would definitely look for Xeon kernel optimisations to really make you system fly. Try http://www.kernel.org/ etc. Cheers Glenn Hocking Publish Media Pty Ltd http://www.sitegeneral.com/ Patrick Hsieh wrote: Hello Glenn Hocking [EMAIL PROTECTED], I am planing to run MySQL on either dual P3-1G or single Xeon 2.2G. The main board is smp architecture, therefore I may add another Xeon CPU in the future. I think MySQL has no problem on smp architecture, right? Just difficult to make the decision. On Wed, 29 May 2002 13:40:26 +1000 Glenn Hocking [EMAIL PROTECTED] wrote: -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
