[mythtv-users] Speed/disk access, multiple tuners, multiple myth drives

[Brian Wood]

Paul Bender wrote:
> Bobby Gill wrote:
>> My Mythbox specs are a PVR-150 and drive is a WD Sata 320gb 16mb cache.
>>
>> Currently if the tuner is recording and I try to watch a previous 
>> recording at the same time, I notice slowdown in responsiveness for 
>> things like rewinding/forwarding and whatnot. Now if I add another 
>> tuner, would that make things smoother for playback?
>>
>> Or another scenario I'm pondering to get things smoove is that I'm 
>> thinking of adding a Seagate 32mb cache drive. Now could I have Myth set 
>> up so that it records LiveTV to one drive and keeps recordings on 
>> another?So if it were to be recording Live TV while I'm watching a 
>> previous recording, surely things would be faster.
>>
>> Just a bit confused on this, trying to get it a lil smoother as even 
>> deleting files on the drive causes playback to pause, and I have the 
>> delete files slowly option in mythtv-setup checked.
>>
>> Thanks for any help,
>> Bob
> 
> Are your MySQL database and recording/livetv directory on the save 
> drive? If so, then you might get the best performance increase by moving 
> the MySQL database to a different drive.

Good advice, perhaps you should say "spindle" and not "drive", as it's
possible to have 2 or more logical drives on the same physical device,
but that's getting picky :-)

But to address the OP's original question. No, another tuner would not
have any effect at all on the performance while watching a recording
while making 1 new one. The only way another tuner would effect things
would be if it were in use, and then the effect would be negative,
obviously, if it were recording to the same device.

If separating the DB and video doesn't fix things, look at your disk and
filesystem performance. Modern drives should not have a problem with the
situation you describe.
beww