Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > Capturing and Editing Video > VirtualDub, VDubMod & AviDemux

Reply
 
Thread Tools Search this Thread Display Modes
Old 27th November 2002, 02:30   #1  |  Link
h00z
anime DVD nut
 
Join Date: Oct 2001
Location: Ohio, USA
Posts: 86
New VirtualDub (1.4.12) HT/SMP Tests

Okay, I just ran my standard encode twice with each version of VirtualDub. I made sure all the VirtualDub "Performance" and "Preference" settings were identical, as were the CODEC settings. I used fast recompress in both with the same AVS and D2V files.

Tests were run on my dual Intel Xeon 2.4ghz machine with hyperthreading enabled, 512mb of memory and a WD800JB drive (80gb, 7200rpm, 8mb cache).



Doesn't look like the new VirtualDub does much for DivX encoding. I'm afraid we're limited by the speed of the DivX CODEC more than anything else.
h00z is offline   Reply With Quote
Old 27th November 2002, 02:34   #2  |  Link
h00z
anime DVD nut
 
Join Date: Oct 2001
Location: Ohio, USA
Posts: 86
I'll run the tests again when my 2.8ghz Xeons get here next week. Supposedly Intel improved the hyperthreading on the newer Xeons... We'll see if it makes any difference
h00z is offline   Reply With Quote
Old 2nd December 2002, 15:33   #3  |  Link
Rick83
Registered User
 
Rick83's Avatar
 
Join Date: Dec 2001
Location: Austria
Posts: 21
hu, you must have a lot of money... dual 2,4 xeon... dual 2,8 xeon... what r u doing? ;-)
Rick83 is offline   Reply With Quote
Old 3rd December 2002, 00:34   #4  |  Link
alexnoe
Banned
 
alexnoe's Avatar
 
Join Date: Aug 2002
Location: Germany
Posts: 1,737
You'll get *much* more speed if you run one encoding on each CPU!
alexnoe is offline   Reply With Quote
Old 4th December 2002, 00:01   #5  |  Link
d.co
Registered User
 
Join Date: Oct 2002
Posts: 15
@hooz

I've heard the MPEG-4 encoding is multithreaded to a small extent but is there much to be gained with a dual processor config that already treats each processor as two logical processors (thats virutally four processors you got there)

I mean you can ideally shunt system tasks off to one proc, and avisynth filter work to another (so I'm told, on dual processor configs vdub/codec work is done on one proc and it seems avisynth filter work is done on another judging by the cpu usage) but what will the other vitual processor be able to add?

PS two things First off... LOVE your site. I plan on sounding off some ideas in your forums when I get the cash saved up for my first duallie.

secondly... what was the contents of your avs file? what filters were used?
d.co is offline   Reply With Quote
Old 11th December 2002, 04:50   #6  |  Link
lefthandedgoat
Registered User
 
Join Date: Jul 2002
Posts: 1
I really did not see much a gain with the new p4 optimized Virtualdub.

I dont remember exact numbers, but nothing to jump up and down about.

Nice page hooz, its cool to see that you are the guy behind 2cpu.

Im a hardware freak too, but I like Divx as well.

I tested on a p4 2.8 (no HT naturally), abit It7, 256 samsung pc2700.
lefthandedgoat is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 15:40.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.