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Speed of loading a QVD file

Hi All. I've got a qvw which I load by loading the existing data from a qvd file, loading new data, then saving the qvd. The idea of this is that the data load should be much quicker, and only pull new data from the server which should be slower, but will involve much less data.

I've been having time out problems when it is scheduled, so reloaded it in qv and monitored the progress. As expected the loading of the records from the qvd file was fast (35 million rows, about 70 columns wide), but it then sat there using 25% of the CPU (4 dual core processors) for 50 minutes before moving to the next step which was to check for the most recent data in the data loaded.

Any ideas why it is taking so long after the data is loaded (does it need to be ordered when saved or something like that), and is there any reason that the CPU is capped at 25%, querying the qvw via internet explorer uses the full 100%.

Thanks,

Richard

10 Replies
johnmart61
Contributor III
Contributor III

You're the second person to suggest this. I''l try the same load on a 64-bit server - maybe that will resolve the problem.