BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  New Computer Builds 3 times slower than the old one Goto page 1, 2, 3  Next          BorlandTalk.com Forum Index -> C++ Builder (Non-Technical) View previous topic :: View next topic   Author Message Db Guest Posted: Fri Dec 02, 2005 2:01 pm    Post subject: New Computer Builds 3 times slower than the old one I just got a Dell Pentium D 3.0 GHz with 2 GB ram and it takes 12 minutes to build my project using ProjectMaker. My old 1.8 GHz Dell with 512MB ram builds the same project in 4 minutes. The new computer has McAfee antivirus (which seems to be a PITA) which I tried disabling but it made no difference. The new computer has the latest version of ProjectMaker but I doubt that has anything to do with it. Anyone have any clue what might be happening? Db Back to top Sean Hoffman Guest Posted: Fri Dec 02, 2005 2:27 pm    Post subject: Re: New Computer Builds 3 times slower than the old one Was your 1.8 Ghz Dell a Netburst CPU? If not, then that could very well be your problem. If an application isn't optimized the deep pipelining that the Intel is abandoning, then branch prediction misses are painful. This might help a bit: make sure you have Hyperthreading turned off. Db wrote: Quote: I just got a Dell Pentium D 3.0 GHz with 2 GB ram and it takes 12 minutes to build my project using ProjectMaker. My old 1.8 GHz Dell with 512MB ram builds the same project in 4 minutes. Back to top Sean Hoffman Guest Posted: Fri Dec 02, 2005 2:30 pm    Post subject: Re: New Computer Builds 3 times slower than the old one Sorry, I just re-read that and it must sound like Greek. Netburst was a high frequency, deep-pipelining philosophy that Intel adopted with the P4. When I said "if an application isn't optimized", in this case, the "application" I'm talking about is the compiler itself. To turn off Hyperthreading, go into the bios for the machine, and somewhere buried in there, there's a way to turn it off. Sean Hoffman wrote: Quote: Was your 1.8 Ghz Dell a Netburst CPU? If not, then that could very well be your problem. If an application isn't optimized the deep pipelining that the Intel is abandoning, then branch prediction misses are painful. This might help a bit: make sure you have Hyperthreading turned off. Db wrote: I just got a Dell Pentium D 3.0 GHz with 2 GB ram and it takes 12 minutes to build my project using ProjectMaker. My old 1.8 GHz Dell with 512MB ram builds the same project in 4 minutes. Back to top Hans Galema Guest Posted: Fri Dec 02, 2005 2:31 pm    Post subject: Re: New Computer Builds 3 times slower than the old one Db wrote: Quote: I just got a Dell Pentium D 3.0 GHz with 2 GB ram and it takes 12 minutes to build my project using ProjectMaker. My old 1.8 GHz Dell with 512MB ram builds the same project in 4 minutes. The new computer has McAfee antivirus (which seems to be a PITA) which I tried disabling but it made no difference. The new computer has the latest version of ProjectMaker but I doubt that has anything to do with it. Anyone have any clue what might be happening? You had to install bcb on that computer first. Dou you have the same settings as with the old one? Put background compiling off. You copied the project to the new machine. Check your include paths. They should all be valid paths. Hans. Back to top Jonathan Benedicto Guest Posted: Fri Dec 02, 2005 2:48 pm    Post subject: Re: New Computer Builds 3 times slower than the old one Db wrote: Quote: I just got a Dell Pentium D 3.0 GHz with 2 GB ram and it takes 12 minutes to build my project using ProjectMaker. My old 1.8 GHz Dell with 512MB ram builds the same project in 4 minutes. The new computer has McAfee antivirus (which seems to be a PITA) which I tried disabling but it made no difference. The new computer has the latest version of ProjectMaker but I doubt that has anything to do with it. Anyone have any clue what might be happening? While you're at it, get my mtbcc32 wrapper ([url]http://www.jomitech.com/mtbcc32.shtml)[/url], and use that as well. Because you have a Pentium D, you'll probably be able to compile your project in less than half the time it took on your other machine. If your D has Hyper-threading, then don't disable it. It will help mtbcc32 compile even faster. Jonathan Back to top Andrue Cope [TeamB] Guest Posted: Fri Dec 02, 2005 2:51 pm    Post subject: Re: New Computer Builds 3 times slower than the old one Hans Galema wrote: Quote: You had to install bcb on that computer first. Dou you have the same settings as with the old one? Put background compiling off. Also look for and delete the *.HDP files in the VCL include directory. -- Andrue Cope [TeamB] [Bicester, Uk] http://info.borland.com/newsgroups/guide.html Back to top Db Guest Posted: Fri Dec 02, 2005 3:16 pm    Post subject: Re: New Computer Builds 3 times slower than the old one ----- Original Message ----- From: "Andrue Cope [TeamB] Quote: Also look for and delete the *.HDP files in the VCL include directory. What are these files? Back to top Db Guest Posted: Fri Dec 02, 2005 3:17 pm    Post subject: Re: New Computer Builds 3 times slower than the old one From: "Hans Galema" Quote: You had to install bcb on that computer first. Dou you have the same settings as with the old one? Put background compiling off. You copied the project to the new machine. Check your include paths. They should all be valid paths. As far as I know I have the same settings because I copied the entire folder from the old computer that contained the project. Most of the settings I believe are contained in the project. I compared them and they seemed to be the same. I did turn background compiling off although it was on on the old computer, it made no difference - not sure if that applies when using ProjectMaker. Back to top Db Guest Posted: Fri Dec 02, 2005 3:18 pm    Post subject: Re: New Computer Builds 3 times slower than the old one Quote: Sean Hoffman wrote: To turn off Hyperthreading, go into the bios for the machine, and somewhere buried in there, there's a way to turn it off. Thanks. What is Hyperthreading? Db Back to top Jonathan Benedicto Guest Posted: Fri Dec 02, 2005 3:32 pm    Post subject: Re: New Computer Builds 3 times slower than the old one Db wrote: Quote: As far as I know I have the same settings because I copied the entire folder from the old computer that contained the project. Most of the settings I believe are contained in the project. I compared them and they seemed to be the same. I did turn background compiling off although it was on on the old computer, it made no difference - not sure if that applies when using ProjectMaker. AKAIK, background compiling does not apply with ProjectMaker. Jonathan Back to top Jonathan Benedicto Guest Posted: Fri Dec 02, 2005 3:34 pm    Post subject: Re: New Computer Builds 3 times slower than the old one Db wrote: Quote: Thanks. What is Hyperthreading? A fancy Intel trick that makes a single-core CPU act as if it was 1 + 1/2 cores. It takes two threads from the OS, and works on them both, doing little bits of each until they are finished. Jonathan Back to top Oliver Rutsch Guest Posted: Fri Dec 02, 2005 3:34 pm    Post subject: Re: New Computer Builds 3 times slower than the old one Hi Db(?), Quote: I just got a Dell Pentium D 3.0 GHz with 2 GB ram and it takes 12 minutes to build my project using ProjectMaker. My old 1.8 GHz Dell with 512MB ram builds the same project in 4 minutes. The new computer has McAfee antivirus (which seems to be a PITA) which I tried disabling but it made no difference. The new computer has the latest version of ProjectMaker but I doubt that has anything to do with it. Anyone have any clue what might be happening? I have a P4 D 2.8GHz (FS scenic W340) and I switched from a 2.66GHz P4. I never had a speed decrease (and I have here McAfee, too). Maybe on the first build all your precompiled headers were re-created? This would certainly take some time. I would measure the time in another build. Or maybe your sources are on a mapped network drive now? Is your CPU-Usage about 50% while building ? (Note for the others: The 2.8 and 3.0 GHz Pentium D processors have no hyperthreading, they have two cores.). My ProjectMaker tool is calling the command line compiler and this should be the only time consuming task. And give Jonathan's multithreading wrapper a try. It's cool to see the second core working on a big project. Just copy mtbcc32.exe to the Borland bin directory and enter mtbcc as the compiler in the ProjectMaker. Bye, Oliver Back to top Sean Hoffman Guest Posted: Fri Dec 02, 2005 3:36 pm    Post subject: Re: New Computer Builds 3 times slower than the old one What he said . For a great (but lengthy) writeup on it, go here: http://arstechnica.com/articles/paedia/cpu/hyperthreading.ars Jonathan Benedicto wrote: Quote: Db wrote: Thanks. What is Hyperthreading? A fancy Intel trick that makes a single-core CPU act as if it was 1 + 1/2 cores. It takes two threads from the OS, and works on them both, doing little bits of each until they are finished. Jonathan Back to top Andrue Cope [TeamB] Guest Posted: Fri Dec 02, 2005 3:37 pm    Post subject: Re: New Computer Builds 3 times slower than the old one Db wrote: Quote: Also look for and delete the *.HDP files in the VCL include directory. What are these files? They are precompiled headers intended to reduce compilation times. They are geared toward smaller projects where you might not ordinarily bother to optimise your headers. For a lot of people they increase compilation times significantly. -- Andrue Cope [TeamB] [Bicester, Uk] http://info.borland.com/newsgroups/guide.html Back to top Jonathan Benedicto Guest Posted: Fri Dec 02, 2005 3:47 pm    Post subject: Re: New Computer Builds 3 times slower than the old one Oliver Rutsch wrote: Quote: (Note for the others: The 2.8 and 3.0 GHz Pentium D processors have no hyperthreading, they have two cores.). Thank you for the info. 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