RE: [Rosegarden-devel] Re: [Rosegarden-user] Relative priorities when opening a new window (music over notation)

[Mark K. <mk...@co...>]

Richard,
   As long as you guys know about it that's cool. I just wanted to make sure
it wasn't just my system, and that it's on the TODO list somewhere.

Thanks,
Mark

-----Original Message-----
From: ros...@li...
[mailto:ros...@li...]On Behalf Of
Richard Bown
Sent: Tuesday, October 22, 2002 12:45 AM
To: Mark Knecht
Cc: ros...@li...
Subject: [Rosegarden-devel] Re: [Rosegarden-user] Relative priorities
when opening a new window (music over notation)


On Monday 21 October 2002 23:32, Mark Knecht wrote:

>    I did want to call you attention to what seems like a
> misprioritzation (is that even a word?) ;-) of CPU cycles. During
> playback, when I cause the notation display to be opened, playback is
> getting delayed while the system figures out how to draw notes.

Yeah, this is a problem.  We've addressed this in discussion and realise
its importance and will probably offer a solution before too long.
Another way this problem manifests is if you have the Segment Previews
turned on during playback and you wave a window in front of RG - again
the reads from the GUI hit the sequencer performance.  Not good.

I've just thought of a sort-of short term workaround to this which would
allow the sequencer to carry on operating but the GUI would still hang
while opening.  That might be acceptable in the short term but it's
still not a complete solution.

Discussing a complete solution is to reopen old wounds somewhat.  I
would suggest strongly (developers) that any work on resolving this
problem with either multithreading or that memory-mapped-file thing
that G proposed should occur outside of CVS until it's proven in
tarballs to a couple of people at least.  We should prototype solutions
and race them against each other and then throw away the prototypes
before proper implementation.

Chris made a nice synopsis of the various arguments I think at some
point?

B
(moving to rg-devel)


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