Brandon Beattie wrote: >This is purely a system and disk IO issue. I have my mysql databases on >a seperate drive than recordings, but I still get IO bound issues once >in a while. The thread for rescheduling does take all the CPU and IO it >can get for those few seconds, and with the mysql and disk writing >threads they don't always work well together. It's a known problem but >only shows up for HD users more so because HD requires such a large >amount of bandwidth and it can't really stand a hickup. Also, the PCI >bus can be occupied and cause data from the card to be lost if the >system IO can't be freed up quick enough to handle the data. HD tuner >cards have a rather small cache on them. If anything occupies the >system IO longer than 500ms then you risk losing data from the HD tuner, >and Myth and the scheduler does this at times. > > This seems to imply that the mysql database might best be placed on a separate SCSI drive with a large cache? Any thoughts?
Geoff _______________________________________________ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users