Date: Sun, 21 Jan 2007 16:46:37 -0700
From: Andrew McNabb <[EMAIL PROTECTED]>
I wonder what's going wrong in MythTV such that 16 MB (16 seconds) still
wouldn't be enough. That's really weird.
In my case, it's because the Myth scheduler issues an enormously slow
MySQL query at the end of any recording, which can last 20+ seconds
because of disk thrashing (even with fast hardware, plenty of DB
buffers, etc). I really wish it wasn't implemented that way; it's
been causing me grief because any -other- recordings running across
that query can get trashed. (And I -suspect- that part of the problem
is that it's -also- trying to write GOP entries into the DB at the
same time, and if the same process is responsible for emptying ivtv
buffers to disk -and- writing those GOP entries, and it gets frozen
out by the long DB query [I haven't verified this, but ISTR some
discussion along these lines in the last few months on the Myth
lists], then the long DB query freezes GOP writing which freezes
buffer-emptying, and then ivtv overflows its buffers. Feh.)
However, if you're seeing this all the time (e.g., not across
scheduler runs), it's something else.
_______________________________________________
ivtv-devel mailing list
[email protected]
http://ivtvdriver.org/mailman/listinfo/ivtv-devel
