Thanks Kent, I did try that. It shows that the "scan....endscan" loop takes 1/2 second, but that was using the VFP IDE...which is an environment that there is no problem with.
Unfortunately, I don't know of a way to run coverage profiler from the runtime environment. Is there a way to do that? Mike > Try using the coverage profiler. It will tell you everyline of source that > is executed and the amount of time it takes for each line. > > Set coverage to test.log > Set coverage on > > > > -----Original Message----- > From: profox-boun...@leafe.com [mailto:profox-boun...@leafe.com] On Behalf > Of Mike Copeland > Sent: Wednesday, March 02, 2011 3:03 PM > To: profoxt...@leafe.com > Subject: Windows 7 + VFP9 speed problem > > It's been a while since I've been on the list, but I've run into a real > buzz-saw of a VFP problem, thanks in part to Windows 7. I'd really be > appreciative of any and all thoughts on this issue as I'm stumped. > > Application: A monolithic accounting application with a few dozen forms. > Compiled exe is 6MB > Platform: Win XP or Win 7 (32 or 64 bit) plus VFP 9 SP2 and MySQL Add to the > mix: DBI Technologies ctGrid OCX file (although I don't think this is the > source of the problem) > Hardware: Not relevant, but 4GB RAM, Dual Core 3Ghz Intel CPU on Intel > G31 Mboard > > Problem: When loading a form, depending on the platform, it can take 160x as > long to finish. > Task: Load 23,000 SKU #s into a combo. (details below) > > Times below are very very consistent, varying only about .10 second each > run. > > Scenario 1: Windows XP, compiled VFP exe application, all files local > (except MySQL data) > FAST....as in 1/2 second Scenario 2: Windows XP, run > app from source code on VFP IDE, all files local > FAST...again, around 1/2 second Scenario 3: Windows 7 > (32 or 64 bit), source code on VFP IDE, all files local > FAST...1/2 second > > ...here's the problem > > Scenario 4: Windows 7, compiled exe app, all files local > SLOW....80 seconds > This happens on multiple forms that have almost > identical code. > > ...here's the head banger > Scenario 5: Windows 7, running compiled exe from a Linux Samba share > FAST....actually a bit faster than running on Windows > XP...less than 1/2 seconds > > Windows 7 is becoming unavoidable. The solution seems to be to run the app > from the server, but many details (storage of window sizes, auto update to > new version, etc.) have been designed for local workstation storage. > > What I can not understand is why Scenario 4 is so radically different. > Any suggestions? > > What I've tried: > 1. Turned off UAC completely. (Started with UAC on, of course.) No effect. > 2. Change ownership of the folder the files are stored in. No effect. > 3. Installed full VFP IDE, removed, installed VFP9 SP2 run-time only files > No effect, although I was surprised at how fast it was (Scenario 3 > above) > 4. Introduced delays into code loop...i.e., DOEVENTS and "wait window '' > nowait" > 5. Tried saving SELECTED data in a local DBF and loading from DBF. (This did > tweak the timing a little, like 4 seconds out of 80) Even tried saving > static data in DBF and not even involving the MySQL process. > 6. Created single form with nothing but the DBI grid OCX object and compiled > as a 48Kb application. This ran fast, 1/2 second to load, but while > informative it is hardly useful. > 7. I've tested and tried placing the TMPFILES location local and remote, and > let Windows manage it vs. "manual override." No change. > > All in all, it seems to be pointing at a problem with the interaction > between Windows 7 and VFP9 SP2 and memory management. > > I'm sure I've missed something, and I know this is a lot to read, but I > would very much appreciate any suggestions. I know of no better place to go > than here where the best and the brightest connect. > > Oh, here's the code from the INIT event on the form (I've tried various > other events, and even put it in the click event of a button on the form, no > change) Also, you'll notice there's no indication of how I'm getting the > data from MySQL. The sample below has the same speed issues described above, > but as you can see the retrieval from the MySQL server is not involved in > the timing and is actually very fast in all scenarios. > ---------------------------------------------------------- > > MESSAGEBOX('Starting to load Grid. Click OK to start...',0+64,'Notice') > LOCAL ttimestart,ttimeexp SELECT sku FROM skus into temp WHERE active=1 > order by sku SELECT temp GO TOP IN temp > > ttimestart=seconds() > > SCAN WHILE !EOF('temp') > thisform.ctGrid.addcomboitem(1,temp.sku) > ENDSCAN > > ttimeexp=seconds()-ttimestart > > MESSAGEBOX('Finished.'+CHR(13)+ALLTRIM(STR(RECCOUNT('temp')))+' items > added.'+; > CHR(13)+'Time elapsed: > '+ALLTRIM(STR(ttimeexp,6,2))+' seconds',0+64,'Notice') > ------------------------------------------------------------------------- > > Thanks again! > Mike Copeland > > > > [excessive quoting removed by server] _______________________________________________ Post Messages to: ProFox@leafe.com Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/4d6fe3f8.7020...@ggisoft.com ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. 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