[mythtv-users] Hard Drive Performance

[Martin Bene]

> Since the OP's hdparm -tT numbers are way low it's obvious he has a  
> problem not related to filesystem, although he might have those  
> troubles as well.

> /dev/hdc:
>  Timing cached reads:   1392 MB in  2.01 seconds = 692.30 MB/sec
>  Timing buffered disk reads:  188 MB in  3.00 seconds =  62.63 MB/sec
> [root at mythtv mythtv]# hdparm -tT /dev/hda
> 
> /dev/hda:
>  Timing cached reads:   1368 MB in  2.00 seconds = 683.76 MB/sec
>  Timing buffered disk reads:  124 MB in  3.02 seconds =  41.12 MB/sec

I don't see any indication of slow harddisks in these numbers -
"buffered disk reads" are OK. 

"cached reads" don't touch the disk hardware or interface at all, this
is cpu <-> memory bandwidth. Agreed, for a new system the throughput is
rather pathetic.

Bye, Martin