On Thursday 12 January 2006 10:15, Johnathon Meichtry wrote: > Using top check your load averages. On my server where is it constantly > recording 3-4 PAL DTT programs my load averages are: load average: 0.24, > 0.54, 0.71 > > If yours show >1.0 then I would imagine you have a problem. Software RAID > in my opinion should take up no more than 3-5% if the server is busy. > > Also check "0.0% wa" as this is IO waits and would be greater than 30% or > more if your SATA controller/disks is the bottleneck rather than the CPU. > > Johnathon > > > ----- Original Message ----- > From: "Brian Wood" <[EMAIL PROTECTED]> > To: "Discussion about mythtv" <[email protected]> > Sent: Thursday, January 12, 2006 3:05 PM > Subject: Re: [mythtv-users] Software RAID5 no improvement to > transferspeed... > > On Jan 12, 2006, at 7:39 AM, Steve Adeff wrote: > > well I got my software RAID5 up and running. 3 drives, no spares. > > but I still get playback stuttering while recording 2 HD channels > > and playing > > 1 prerecorded HD show. The cpu usage hasn't gone higher than 96% so > > I don't > > think its a cpu usage problem. > > I do have all three drives connected to the same onboard SATA150 > > controller > > though I don't know if this could be a problem? > > It sure might be, whatever tool you are using to measure CPU load > (top?) is averaging over some period of time, if the average is 96% > then you are almost certainly hitting peaks of 100%+.
Just to let you guys know, it was an SQL issue, I sent a new email, but changed the subject announcing it... I had my other machine (over 100bT) running the SQL db, once I moved it back to the local machine it plays back fine. thanks for the info though, some good info. Johnathon: I don't even notice 3% use by the RAID, I've seen %wa as high as 6%. I get load averges around 4 while watching HD and recording 2 shows. Ramses: great command! I need to store that to my repertoire. -- Steve _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
