BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Delphi 6 periodically slows to a crawl          BorlandTalk.com Forum Index -> comp.lang.pascal.delphi.misc View previous topic :: View next topic   Author Message Paul Harrington Guest Posted: Mon Jan 24, 2005 3:22 pm    Post subject: Delphi 6 periodically slows to a crawl Can anyone think what might cause this? I have a largish project, which normally compiles and links in less than a minute on my 1GHz Notebook 512Mb Ram. Every now and again it freezes up for much longer in the process of a compile/link - 5-10 minutes is not unusual. Looking at task manager (on XP home btw) Delphi32 is chugging along using 95+ % CPU and gradually eating up more and more memory - right now it's used 189,000K mem usage and 221,000K VM size. There is still some free memory available at this point (10 minutes in). Any ideas or suggestions would be much appreciated. Paul Back to top Michael Brown Guest Posted: Mon Jan 24, 2005 9:05 pm    Post subject: Re: Delphi 6 periodically slows to a crawl Paul Harrington wrote: Quote: Can anyone think what might cause this? I have a largish project, which normally compiles and links in less than a minute on my 1GHz Notebook 512Mb Ram. Every now and again it freezes up for much longer in the process of a compile/link - 5-10 minutes is not unusual. Looking at task manager (on XP home btw) Delphi32 is chugging along using 95+ % CPU and gradually eating up more and more memory - right now it's used 189,000K mem usage and 221,000K VM size. There is still some free memory available at this point (10 minutes in). I've had this problem before (Delphi 6 on Win2K) but I can't for the life of me remember how I fixed it. I think it may have been something to do with networking but I can't be sure. [...] -- Michael Brown www.emboss.co.nz : OOS/RSI software and more Add michael@ to emboss.co.nz ---+--- My inbox is always open Back to top Marco van de Voort Guest Posted: Tue Jan 25, 2005 7:57 am    Post subject: Re: Delphi 6 periodically slows to a crawl On 2005-01-24, Paul Harrington <Paul.Harrington (AT) net (DOT) ntl.com> wrote: Quote: Can anyone think what might cause this? I have a largish project, which normally compiles and links in less than a minute on my 1GHz Notebook 512Mb Ram. Every now and again it freezes up for much longer in the process of a compile/link - 5-10 minutes is not unusual. Looking at task manager (on XP home btw) Delphi32 is chugging along using 95+ % CPU and gradually eating up more and more memory - right now it's used 189,000K mem usage and 221,000K VM size. There is still some free memory available at this point (10 minutes in). Any ideas or suggestions would be much appreciated. I've never had it myself, but the times I have seen these problems in forums, they always recommended uninstall plugins/packages and see if you can pinpoint one of them. Back to top Paul Harrington Guest Posted: Thu Jan 27, 2005 12:04 pm    Post subject: Re: Delphi 6 periodically slows to a crawl Thx for the responses. I found that I had the tooltip code insight settings checked, which I think is what was causing my problem. Since I have turned them off, I haven't seen any really long freezes, just a couple of 40 seconds or so on a compile/link. I don't know why code insight should spend quite so long thrashing round - a bug perhaps? Anyway, I was losing far more time with the freezes than I gained with code insight, so it will stay off for now. thx again Paul Back to top Bruce Roberts Guest Posted: Thu Jan 27, 2005 3:50 pm    Post subject: Re: Delphi 6 periodically slows to a crawl "Paul Harrington" <Paul.Harrington (AT) net (DOT) ntl.com> wrote Quote: Thx for the responses. I found that I had the tooltip code insight settings checked, which I think is what was causing my problem. Since I have turned them off, I haven't seen any really long freezes, just a couple of 40 seconds or so on a compile/link. I don't know why code insight should spend quite so long thrashing round - a bug perhaps? Anyway, I was losing far more time with the freezes than I gained with code insight, so it will stay off for now. Code completion often has to re-analyze a project. The analysis is essentially a compile without the code generation step. A declaration change can mean a lot of work, especially when one loads a unit which uses several other units that have undergone significant changes. Back to top Paul Harrington Guest Posted: Thu Jan 27, 2005 5:30 pm    Post subject: Re: Delphi 6 periodically slows to a crawl Hi Bruce I understand about the analysis being like a compile, but it should never take 10-15 minutes, even on my slow old notebook. A normal compile and link completes in less than 20 secs, so something is wrong IMO. BTW, I didn't have code completion on - I'd turned it off for just that reason. The tooltip settings were still on tho. Paul "Bruce Roberts" <ber (AT) bounceitattcanada (DOT) xnet> wrote Quote: "Paul Harrington" <Paul.Harrington (AT) net (DOT) ntl.com> wrote in message news:2N4Kd.1403$f07.491 (AT) newsfe5-gui (DOT) ntli.net... Thx for the responses. I found that I had the tooltip code insight settings checked, which I think is what was causing my problem. Since I have turned them off, I haven't seen any really long freezes, just a couple of 40 seconds or so on a compile/link. I don't know why code insight should spend quite so long thrashing round - a bug perhaps? Anyway, I was losing far more time with the freezes than I gained with code insight, so it will stay off for now. Code completion often has to re-analyze a project. The analysis is essentially a compile without the code generation step. A declaration change can mean a lot of work, especially when one loads a unit which uses several other units that have undergone significant changes. Back to top Jud McCranie Guest Posted: Thu Jan 27, 2005 6:06 pm    Post subject: Re: Delphi 6 periodically slows to a crawl On Thu, 27 Jan 2005 17:30:52 GMT, "Paul Harrington" <Paul.Harrington (AT) net (DOT) ntl.com> wrote: Quote: I understand about the analysis being like a compile, but it should never take 10-15 minutes, even on my slow old notebook. I agree. I have it pause for several seconds from time to time (apparently saving files, or something). This is on a 2.4 GHz P4. Even on a relatively slow machine, I don't think it should take 1 minute. --- Replace you know what by j to email Back to top Bruce Roberts Guest Posted: Thu Jan 27, 2005 8:11 pm    Post subject: Re: Delphi 6 periodically slows to a crawl "Paul Harrington" <Paul.Harrington (AT) net (DOT) ntl.com> wrote Quote: I understand about the analysis being like a compile, but it should never take 10-15 minutes, even on my slow old notebook. A normal compile and link completes in less than 20 secs, so something is wrong IMO. BTW, I didn't have code completion on - I'd turned it off for just that reason. The tooltip settings were still on tho. 10-15 minutes does seem excessive. However you have to remember that the compile process is actually less resource intensive than code completion. I would not be at all surprised to learn that massive page swapping occurs during your long waits. Back to top Paul Harrington Guest Posted: Thu Jan 27, 2005 10:07 pm    Post subject: Re: Delphi 6 periodically slows to a crawl Excuse my ignorance on this Bruce, but would page swapping occur with free memory available? I assumed it wouldn't, but I'm rather rusty in these areas ;-) Paul "Bruce Roberts" <ber (AT) bounceitattcanada (DOT) xnet> wrote Quote: "Paul Harrington" <Paul.Harrington (AT) net (DOT) ntl.com> wrote in message news:gz9Kd.1516$f07.421 (AT) newsfe5-gui (DOT) ntli.net... I understand about the analysis being like a compile, but it should never take 10-15 minutes, even on my slow old notebook. A normal compile and link completes in less than 20 secs, so something is wrong IMO. BTW, I didn't have code completion on - I'd turned it off for just that reason. The tooltip settings were still on tho. 10-15 minutes does seem excessive. However you have to remember that the compile process is actually less resource intensive than code completion. I would not be at all surprised to learn that massive page swapping occurs during your long waits. Back to top Bruce Roberts Guest Posted: Mon Jan 31, 2005 7:39 pm    Post subject: Re: Delphi 6 periodically slows to a crawl "Paul Harrington" <Paul.Harrington (AT) net (DOT) ntl.com> wrote Quote: Excuse my ignorance on this Bruce, but would page swapping occur with free memory available? I assumed it wouldn't, but I'm rather rusty in these areas It might well happen. I'm not intimate with the details of Windows memory management so I can't be specific. In general virtual o/s often reserve RAM for particular types of objects, like disk buffers, stack, etc. This memory may be reported as part of a generally available memory pool, even though its reserved for specific tasks. Also many virtual memory o/s start swapping space in tasks/threads when working set size exceeds some threshold, even when there is plenty of RAM available. Finally, just because one thinks there is RAM available doesn't make it so. (BTW. Windows TaskManager can give one a general idea of overall performance, but it should never be taken as an accurate real-time reporter of RAM status.) 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