[mythtv-users] How do I get coverart/etc in watch recordings?

[f-myth-users at media.mit.edu]

    > Date: Thu, 17 Sep 2009 07:53:50 +1000
    > From: Jean-Yves Avenard <jyavenard at gmail.com>

    > Hi

    > 2009/9/17 Michael T. Dean <mtdean at thirdcontact.com>:
    > > Unwritable $HOME/.mythtv (and/or $HOME/.mythtv/themecache ) (probably not
    > > since it appears after restart) or (more likely) network-mounted but not
    > > using actimeo=0 ?

    > As you wrote, the caching works after I restart mythfrontend...

    > the NFS is mounted as:
    > 192.168.10.11:/data     /data        nfs     rw,bg,hard,intr 0 0

    > will try with actimeo=0
    > and report

Wow, actimeo=0 (or noac) can be a hideous performance-killer if you've
got anything doing large writes to the directory:  1Gb/s link acting
like it was 20Mb/s, etc.  (I see from later traffic in this thread
that it didn't help, but just in case someone reading this is tempted
to try it for other reasons...)

[E.g., at one point I was running a test and demonstrated that using
noac caused a 50x performance drop if the -client- sets it for the
server's mount and then tried to push a file to the server.  Pulls
from the server were unaffected, as was setting it on the server,
so it was only 1 of the 4 possible directions (push/pull, client/
server).  I'm guessing it was because most of the traffic was NFS
constantly updating the client for every change in length of the
file on the server, but I never bothered to instrument the net to
see exactly why---actimeo=1 was plenty for my application, whereas
the default (probably 60) led to all kinds of bad behavior.]