Mailing List Archive: MythTV: Commits

Ticket #6397: Watch Recordings menu slow due to preview grabbing

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mythtv at cvs

Mar 28, 2009, 11:29 AM

Post #1 of 7 (968 views)
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Ticket #6397: Watch Recordings menu slow due to preview grabbing

#6397: Watch Recordings menu slow due to preview grabbing
--------------------------------+-------------------------------------------
Reporter: obrienmd [at] gmail | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: unknown
Severity: medium | Mlocked: 0
--------------------------------+-------------------------------------------
Using SVN 20270. Watch Recordings menu is extremely slow (especially when
browsing shows with large numbers of episodes), and after looking at logs,
it seems as though the delay is caused by Myth constantly grabbing
previews from all episodes each time a show is selected in the left pane.

Thoughts? Let me know which info should be provided.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6397>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Mar 28, 2009, 11:37 AM

Post #2 of 7 (927 views)
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Re: Ticket #6397: Watch Recordings menu slow due to preview grabbing [In reply to]

#6397: Watch Recordings menu slow due to preview grabbing
--------------------------------+-------------------------------------------
Reporter: obrienmd [at] gmail | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: unknown
Severity: medium | Resolution:
Mlocked: 0 |
--------------------------------+-------------------------------------------

Comment(by anonymous):

Not a MythTV bug, it seems. NFSrooted frontend apparently is searching
for (and not finding) thumbnails, which have been generated and show up
fine on the MythTV server. They are in the same location on both machines
(/myth/tv), will do more investigation as to why remote frontend cannot
find and thus constantly initiates new preview grabs.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6397#comment:1>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Mar 28, 2009, 11:58 AM

Post #3 of 7 (921 views)
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Re: Ticket #6397: Watch Recordings menu slow due to preview grabbing [In reply to]

#6397: Watch Recordings menu slow due to preview grabbing
--------------------------------+-------------------------------------------
Reporter: obrienmd [at] gmail | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: unknown
Severity: medium | Resolution:
Mlocked: 0 |
--------------------------------+-------------------------------------------

Comment(by anonymous):

Hrm, looks like it may be a Myth issue after all. When I deselect "always
stream recordings from backend", this issue goes away and all thumbnails
are found perfectly. It seems that when this setting is checked, a remote
frontend is unable to find thumbnails, even when they are mounted locally
via NFS at the same mount point.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6397#comment:2>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Mar 28, 2009, 4:49 PM

Post #4 of 7 (915 views)
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Re: Ticket #6397: Watch Recordings menu slow due to preview grabbing [In reply to]

#6397: Watch Recordings menu slow due to preview grabbing
--------------------------------+-------------------------------------------
Reporter: obrienmd [at] gmail | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: unknown
Severity: medium | Resolution:
Mlocked: 0 |
--------------------------------+-------------------------------------------

Comment(by anonymous):

Is your actimeo set to 0 in your fstab?

If not nfs may simply not be telling mythtv that the file is there..

For reference these are my nfs mount options:
rsize=8192,wsize=8192,nosuid,soft,actimeo=0

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6397#comment:3>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Mar 29, 2009, 4:52 PM

Post #5 of 7 (888 views)
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Re: Ticket #6397: Watch Recordings menu slow due to preview grabbing [In reply to]

#6397: Watch Recordings menu slow due to preview grabbing
--------------------------------+-------------------------------------------
Reporter: obrienmd [at] gmail | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: unknown
Severity: medium | Resolution:
Mlocked: 0 |
--------------------------------+-------------------------------------------

Comment(by anonymous):

It's not an NFS issue, because if I turn "stream recordings" off, and just
play files as if they were "local" (but mounted over nfs), everything
works great.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6397#comment:4>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Oct 6, 2009, 4:20 PM

Post #6 of 7 (501 views)
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Re: Ticket #6397: Watch Recordings menu slow due to preview grabbing [In reply to]

#6397: Watch Recordings menu slow due to preview grabbing
--------------------------------+-------------------------------------------
Reporter: obrienmd [at] gmail | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: unknown
Severity: medium | Resolution:
Mlocked: 0 |
--------------------------------+-------------------------------------------

Comment(by mdean):

If this issue is still occurring, please check the clock time on both the
frontend and backend systems. If the clocks disagree, it will cause this
issue. (You should also get a warning on frontend start if the frontend's
clock is >20s different from the backend's.)

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6397#comment:5>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Feb 27, 2010, 11:04 AM

Post #7 of 7 (332 views)
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Re: Ticket #6397: Watch Recordings menu slow due to preview grabbing [In reply to]

#6397: Watch Recordings menu slow due to preview grabbing
--------------------------------+-------------------------------------------
Reporter: obrienmd@… | Owner: ijr
Type: defect | Status: closed
Priority: minor | Milestone: 0.22
Component: MythTV - General | Version: unknown
Severity: medium | Resolution: fixed
Mlocked: 0 |
--------------------------------+-------------------------------------------
Changes (by mdean):

* status: new => closed
* resolution: => fixed
* milestone: unknown => 0.22

Comment:

This should have been fixed by the background loading of preview images
and the frontend preview image caching changes that went in shortly before
0.22 was released.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/6397#comment:6>
MythTV <http://www.mythtv.org/>
MythTV
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