Chris Knadle wrote: > Huh. Stuck at 16-bit? Bleh. Maybe there's an option you can pass to the > SATA driver for 32-bit support? [Not as simple as it sounds, as the driver > is likely loaded from the ramdisk/ramfs image.]
Fiddling around with hdparm and Goggle I've learned that I have enabled: udma6, Native Command Queueing (NCQ), and write-cache. hdparm -tT says: /dev/sda: Timing cached reads: 2152 MB in 2.00 seconds = 1076.19 MB/sec Timing buffered disk reads: 228 MB in 3.00 seconds = 75.96 MB/sec Hardware is not my forte but this drive seems to be in good shape, no? > The box you have running MythTV is very beefy; certainly more than would > be > required for only one video stream. I assumed you were having some type of > occasional video glitch that prompted you to look at the system load. If > everything is working fine but the system load is 1.50 then if it were me I'd > ignore it (because of the reasons that Sean and Mike eloquently explained). > I.E. if it 'aint broke, don't fix it. I probably should have mentioned that the load is 1.5 when not recording, watching, flagging commercials, etc. If I do anything the loads jumps to 2 or 3 and change. What Sean and Mike didn't address is that I said the system tends to be around 97% idle. Today's averages are: 94.37 idle 0.23% iowait 1.16 load So I'm not certain about their theory although I was already thinking the same; anyway what I'm after is not theories but diagnostics I can use to test them. > Last I read the MythTV docs they had specific recommendations for > filesystem choice and settings to optimize for speed and large file support; > I'm assuming you've gleaned through those already, but have a look if not. I did when I set it up but I suppose it's worth looking at again. > I'm also guessing that your motherboard has an onboard raid controller and > that you're already using it. If not, that can help performance some if you > can get that working. [I'm NOT suggesting using RAID, just suggesting using > the raid CONTROLLER.] This is new to me, I'll check it out. -- __________________________________________________________________ Garrison Hoffman Codefix Consulting http://codefix.net/ 914.930.6268 718.210.3445 800.691.8674 _______________________________________________ Mid-Hudson Valley Linux Users Group http://mhvlug.org http://mhvlug.org/cgi-bin/mailman/listinfo/mhvlug Upcoming Meetings (6pm - 8pm) MHVLS Auditorium Dec 5 - Open Source Show and Tell Jan 2 - TBD Feb 6 - DBUS Mar 5 - Setting up a platform-independent home/small office network using Linux
