View unanswered posts    View active topics

Board index Linux General

All times are UTC - 6 hours





Post new topic Reply to topic  Page 1 of 1
  [ 3 posts ] 
Print view Previous topic   Next topic  
Author Message
Search for:
stinga
 Post subject: pci latency
PostPosted: Thu Mar 09, 2006 5:15 am 
Offline
Joined: Sat Nov 05, 2005 4:37 am
Posts: 191
Location: Cornwall - uk
G'day all,

I am getting interested in PCI Latency and would be interested to know what others have.

I have the kids DVD's on a hard drive that is on another host is NFS mounted to the knoppmyth box. Everything is OK execpt when the x50 pvr cards are recording, I then get sound skips and possibly video 'blips'.

I think the latency settings are a bit weird on my box...

Quote:
0000:00:05.0 Bridge: nVidia Corporation CK8S Ethernet Controller (rev a2)
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 16

0000:00:08.0 IDE interface: nVidia Corporation CK8S Parallel ATA Controller (v2.5) (rev a2) (prog-if 8a [Master SecP PriP])
Flags: bus master, 66MHz, fast devsel, latency 0

0000:02:06.0 Multimedia video controller: Internext Compression Inc iTVC15 MPEG-2 Encoder (rev 01)
Flags: bus master, medium devsel, latency 128, IRQ 19

0000:02:07.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01)
Flags: bus master, medium devsel, latency 128, IRQ 20

0000:02:08.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 07)
Flags: bus master, medium devsel, latency 128, IRQ 18


If I am reading the correctly then a latency of 0 means the PCI gives up the bus immediately, I think the ethernet card should have a higher Latency and possibly everything else should be a lower.
I also wonder if the pata controller having a 0 could be contributing to my pata issues, mibd you I have not had any since I altered the CAS/RAS settings.

Any ideas?

_________________
--
stinga

as of 17-May-2018
R8.2 - sort of working.
MB: gigabyte GA-P43-ES3G | RAM: 2GB
VGA: PNY Nvidia GT240 1GB
4 x Technisat skystar 2 dvb | 1 x TBS6981 dvb-s2
pata: 1x300Gb | sata: 2x1Tb 2x2Tb
Problems:
TBS6981 Does not work.
Top
 Profile  
 
RacerX
 Post subject:
PostPosted: Thu Mar 09, 2006 11:29 am 
Offline
Joined: Sun Sep 05, 2004 7:06 pm
Posts: 690
I would say to look at your IRQ usage. See what IRQ's are being shared.
Sometimes moving a card to a different slot can make big difference performance wise.

ALso, you might try going into bios and disable APCI sometimes callled APIC. This also is a thorn in the side at times.
Top
 Profile  
 
stinga
 Post subject:
PostPosted: Fri Mar 10, 2006 7:28 am 
Offline
Joined: Sat Nov 05, 2005 4:37 am
Posts: 191
Location: Cornwall - uk
Ta,

No IRQ sharing, I haven't tried the APCI route yet.

But it crashed this morning, it was up for 8 days though, that is a record.
Not sure why it crashed, it wasn't doing any playing/recording and I can't see anything in the logs at that time.

New thread for oops coing up :roll:

_________________
--
stinga

as of 17-May-2018
R8.2 - sort of working.
MB: gigabyte GA-P43-ES3G | RAM: 2GB
VGA: PNY Nvidia GT240 1GB
4 x Technisat skystar 2 dvb | 1 x TBS6981 dvb-s2
pata: 1x300Gb | sata: 2x1Tb 2x2Tb
Problems:
TBS6981 Does not work.
Top
 Profile  
 

Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 3 posts ] 


Board index Linux General

All times are UTC - 6 hours




Who is online

Users browsing this forum: No registered users and 10 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group

Theme Created By ceyhansuyu