BD Rebuilder Core i7 Speeds

[alxnet]

Thanks to jdobbs for this awesome program.

This is the first program that's allowed me to use my Core i7 to its full extent. I've got a Core i7 920 ($290) on a "budget" Gigabyte x58 board ($200) so the total outlay wasn't much. It's clocked at 3.7GHz on air cooling with stock voltage. At this speed, I typically see first pass speeds of 1.7x - 2.0x depending on the movie. Second pass ranges from 0.8x-1.0x. The two pass encoding portion (target to DVD-9) typically takes about 3.5 to 4 hours. Not too bad.

BTW, this is absolutely the best program to weed out overclocking instability. I've run everything from OCCT to IntelBurnTest and 3.8GHz seemed solid.... until BD Rebuilder. I've done four runs at a slightly slower 3.7GHz with no problems now.

:)

[Dark Shikari]

Thanks to jdobbs for this awesome program.

This is the first program that's allowed me to use my Core i7 to its full extent. I've got a Core i7 920 ($290) on a "budget" Gigabyte x58 board ($200) so the total outlay wasn't much. It's clocked at 3.7GHz on air cooling with stock voltage. At this speed, I typically see first pass speeds of 1.7x - 2.0x depending on the movie. Second pass ranges from 0.8x-1.0x. The two pass encoding portion (target to DVD-9) typically takes about 3.5 to 4 hours. Not too bad.

BTW, this is absolutely the best program to weed out overclocking instability. I've run everything from OCCT to IntelBurnTest and 3.8GHz seemed solid.... until BD Rebuilder. I've done four runs at a slightly slower 3.7GHz with no problems now.

:)While I applaud jdobbs for all his work on BD-RB and dealing with the mess of complexity involved in reading and writing BD structures in all possible cases, do note that all the CPU-intensive work is done by x264 :p. I added i7 optimizations here (http://git.videolan.org/?p=x264.git;a=commit;h=a5ac6a5b8688915553fe6fccee09f1272f3788ac), here (http://git.videolan.org/?p=x264.git;a=commit;h=83baa7fdd2edf3e2f9522fc8b79e0826bcf190fc), and here (http://git.videolan.org/?p=x264.git;a=commit;h=e1013e8152254614696bbc9d92959bc9705d98b1)--Intel also deserves thanks for sending us a prerelease chip to optimize for.

[alxnet]

While I applaud jdobbs for all his work on BD-RB and dealing with the mess of complexity involved in reading and writing BD structures in all possible cases, do note that all the CPU-intensive work is done by x264 :p. I added i7 optimizations here (http://git.videolan.org/?p=x264.git;a=commit;h=a5ac6a5b8688915553fe6fccee09f1272f3788ac), here (http://git.videolan.org/?p=x264.git;a=commit;h=83baa7fdd2edf3e2f9522fc8b79e0826bcf190fc), and here (http://git.videolan.org/?p=x264.git;a=commit;h=e1013e8152254614696bbc9d92959bc9705d98b1)--Intel also deserves thanks for sending us a prerelease chip to optimize for.

Well in that case, nicely done! It amazed me that all eight cores were pegged to the max on the second pass (well, eight hyperthreading). Great job on maximizing such a new CPU. :)

[jdobbs]

While I applaud jdobbs for all his work on BD-RB and dealing with the mess of complexity involved in reading and writing BD structures in all possible cases, do note that all the CPU-intensive work is done by x264 :p. I added i7 optimizations here (http://git.videolan.org/?p=x264.git;a=commit;h=a5ac6a5b8688915553fe6fccee09f1272f3788ac), here (http://git.videolan.org/?p=x264.git;a=commit;h=83baa7fdd2edf3e2f9522fc8b79e0826bcf190fc), and here (http://git.videolan.org/?p=x264.git;a=commit;h=e1013e8152254614696bbc9d92959bc9705d98b1)--Intel also deserves thanks for sending us a prerelease chip to optimize for. And it is much appreciated! X264 is the best thing to come along in quite some time. My positive experiences with X264 and batch files was the reason I was inspired to write BD Rebuilder.

[Sophocles]

CPU-intensive work is done by x264


True! Sometimes it's easy to forget that BD RB is more a set of instructions that makes use of other applications to achieve its outcome, and X264 is the heart of those choices.

Intel also deserves thanks for sending us a prerelease chip


Which chip did they send you, and how did you configure it?

[Dark Shikari]

Which chip did they send you, and how did you configure it?A 2-core 1.86Ghz Core i7 (no release equivalent of course).

Avail Media installed Gentoo 64-bit on it and then put it available on their internal network for me to benchmark and code on. I still use it as my main Linux testing box, mainly because nobody else there uses it, so I'm free to install what I want.

[Sophocles]

A 2-core 1.86Ghz Core i7 (no release equivalent of course).



Cool! Engineer's samples are just that! Why didn't they send you a quad or better? Regardless I can see some fast encode times coming soon.:thanks:

[Dark Shikari]

Cool! Engineer's samples are just that! Why didn't they send you a quad or better?They're a bunch of stingy bastards ;)

[GaPony]

While I applaud jdobbs for all his work on BD-RB and dealing with the mess of complexity involved in reading and writing BD structures in all possible cases, do note that all the CPU-intensive work is done by x264 :p. I added i7 optimizations here (http://git.videolan.org/?p=x264.git;a=commit;h=a5ac6a5b8688915553fe6fccee09f1272f3788ac), here (http://git.videolan.org/?p=x264.git;a=commit;h=83baa7fdd2edf3e2f9522fc8b79e0826bcf190fc), and here (http://git.videolan.org/?p=x264.git;a=commit;h=e1013e8152254614696bbc9d92959bc9705d98b1)--Intel also deserves thanks for sending us a prerelease chip to optimize for.

x264 is truly amazing in that it utilizes every bit of the CPU .... but if it hadn't been for jdobbs and BD-Rebuilder, I may never have heard of this remarkable program. :D

You are both to be commended for your developmental acumen. ;)

[Sophocles]

x264 is truly amazing in that it utilizes every bit of the CPU .... but if it hadn't been for jdobbs and BD-Rebuilder, I may never have heard of this remarkable program.

This echoes just how important it is that messages are transmitted to those of us who might appreciate them, and use them. What good is a song if no one can hear it? There are a lot of songs that can be heard here. All that we have to do is listen.

[Sophocles]

This is not an i7 speed which should be faster but it is a result based on a fast processor. This is the result from a Q9650 (was 4 Ghz) reduced to 3.915 GHz. This is typical of my system for a 2 hour BD movie reencode plus or minus 20 minutes.

[11:45:37] BD Rebuilder v0.17.13 (beta)
- Input BD size: 19.19 GB
- Approximate total content: [02:03:26.399]
- Target BD size: 4.27 GB
- MOVIE-ONLY mode enabled
[11:45:37] PHASE ONE, Encoding
- [11:51:23] Reencoding: VID_00000 ( 1 of 1 )
[15:59:39]PHASE ONE complete
[15:59:39]PHASE TWO - Rebuild Started
[15:59:39] - Encode and Rebuild complete
[15:59:39]JOB: 53535660_PUNISHER_BD completed.

[yonexsp]

Thatmakes up my mind. I have not upgraded my PC effectivly in 6.5 years, never had a reason. But now BD Rebuilder makes it worthwhile now :)

i7 it is

[Wombler]

Yep and according to the latest benchmarks it seems the i7 beats the Phenom II X4 hand down for video encoding.

That makes up my mind too.

All I need now is the money! :rolleyes:


Wombler