<br><br><div><span class="gmail_quote">On 6/15/06, <b class="gmail_sendername">Brian Wood</b> <<a href="mailto:beww@beww.org">beww@beww.org</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>On Jun 15, 2006, at 6:44 PM, Michael T. Dean wrote:<br><br>><br>>> I don't see how it SHOULD, but there would be<br>>> slightly different drivers and such, I suppose, so possibly it could<br>>> make a difference. My machine should be significantly more powerful
<br>>> than MythTV needs, but it always seems to be struggling,<br>>> particularly<br>>> in the disk IO area. That doesn't make a ton of sense to me for<br>>> just<br>>> one PVR150.<br>>
<br>> Yeah, that shouldn't be an issue. I built a combined frontend/backend<br>> Myth box for a friend and he has recorded 4 MPEG-2 streams from<br>> PVR-250's simultaneously while watching a previously recorded show /
<br>> and/<br>> he uses the Myth box as his web server, FTP server, and several other<br>> services (and they actually get used a lot by people other than him).<br>><br><br>If you think you may have a disk I/O problem have you checked your
<br>PCI latency settings ?. Do you get a message in your boot log from<br>ivtv about "unreasonable" latency settings ?<br><br>While I don't think problems there would lead to the precise problem<br>you are reporting, it is worth checking into, particularly if you
<br>have a VIA chipset on your mobo.<br><br><a href="http://www.mythtv.org/wiki/index.php/PCI_Latency">http://www.mythtv.org/wiki/index.php/PCI_Latency</a></blockquote><div><br><br>Hmm, I have an nForce2 chipset, but I am getting; ivtv0: Unreasonably low latency timer, setting to 64 (was 32)
<br><br><br>lspci shows:<br>00:09.0 IDE interface: nVidia Corporation MCP2A IDE (rev a3) (prog-if 8a [Master SecP PriP])<br> Subsystem: Micro-Star International Co., Ltd.: Unknown device 5700<br> Flags: bus master, 66Mhz, fast devsel, latency 0
<br> I/O ports at f000 [size=16]<br> Capabilities: [44] Power Management version 2<br><br>00:0b.0 IDE interface: nVidia Corporation nForce2 Serial ATA Controller (rev a3) (prog-if 85 [Master SecO PriO])<br> Subsystem: Micro-Star International Co., Ltd.: Unknown device 5700
<br> Flags: bus master, 66Mhz, fast devsel, latency 0, IRQ 11<br> I/O ports at 09f0 [size=8]<br> I/O ports at 0bf0 [size=4]<br> I/O ports at 0970 [size=8]<br> I/O ports at 0b70 [size=4]<br>
I/O ports at d000 [size=16]<br> I/O ports at d400 [size=128]<br> Capabilities: [44] Power Management version 2<br><br><br>Does that mean my hard drives are ALWAYS getting interrupted? The command 'setpci -v -s 00:
09.0 latency_timer=b0' didn't cause the output of lspci -v to change.<br><br><br><br><br></div><br></div><br>