[mythtv-users] Tuner Card w/ Svideo Inputs & PCI Sound Transfer

Jon Waite jon at jonwaite.com
Fri Jan 23 20:26:00 EST 2004


> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org 
> [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Kyle Rose
> Sent: Saturday, 24 January 2004 8:43 a.m.
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Tuner Card w/ Svideo Inputs & PCI 
> Sound Transfer
> 
> On a PATA 100 Seagate 7200 RPM drive on my single Athlon 
> 1800+ in super-duper hdparm mode (-c 3 -d 1 -u 1 -m 16 -X 
> 69), I find that writes max out at about 20 MBytes/sec when 
> things are tweaked (bdflush set to flush dirty buffers once 
> per second instead of once every thirty seconds, for 
> instance).  So, I'd be surprised if you got more than 32 
> MBytes/sec on SATA, even at its maximum transfer rate (166?).

My newly built system with a Seagate 7200.7 SATA drive consistently gives
~50 MBytes/sec from hdparm - this is without tweaking anything with hdparm
or bdflush. SATA's maximum transfer rate (in current implementations) is 150
MBytes/sec.



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