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[Maposmatic-dev] [task #10050] Improve Estimated Rendering time

From: David Mentré
Subject: [Maposmatic-dev] [task #10050] Improve Estimated Rendering time
Date: Wed, 06 Jan 2010 15:12:23 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv: Gecko/20091221 Firefox/3.5.7


                 Summary: Improve Estimated Rendering time
                 Project: MapOSMatic
            Submitted by: dmentre
            Submitted on: mer 06 jan 2010 16:12:22 CET
         Should Start On: mer 06 jan 2010 00:00:00 CET
   Should be Finished on: mer 06 jan 2010 00:00:00 CET
                Category: None
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
        Percent Complete: 0%
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                  Effort: 0.00



A simple algorithm:
 1. compute average rendering time over the last 10 jobs, e.g. 7 min
 2. for each job in the waiting queue, multiply its position by the previous
rendering time, e.g. jobs in position 100 is estimated at 100 * 7 min = 700

Possible issue:
 * When do we compute and/or refresh this? For each row it might make to many
DB requests


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