[mythtv-commits] Ticket #13649: Excessive calls to SELECT sourceid FROM capturecard WHERE cardid = ?

[MythTV]

#13649: Excessive calls to SELECT sourceid FROM capturecard WHERE cardid = ?
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 Reporter:  bib1963               |          Owner:  Klaas de Waal
     Type:  Bug Report - General  |         Status:  accepted
 Priority:  minor                 |      Milestone:  31.1
Component:  MythTV - General      |        Version:  Unspecified
 Severity:  medium                |     Resolution:
 Keywords:                        |  Ticket locked:  0
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Comment (by Klaas de Waal <kdewaal@…>):

 In [changeset:"7277ae9af33093bdf50b532888bd49b5a2d69bb0/mythtv"
 7277ae9af/mythtv]:
             {{{
             #!CommitTicketReference repository="mythtv"
 revision="7277ae9af33093bdf50b532888bd49b5a2d69bb0"
             Create key for DVB channel master lock only once

 Create master key only once and use that each time the lock is requested
 instead of creating the key every time again. This solves the problem that
 the database is accessed 40 times per second for the source ID of a
 capture card for each capture card while monitoring the signal status.

 Refs #13649
             }}}

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Ticket URL: <https://code.mythtv.org/trac/ticket/13649#comment:4>
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