IPB

Welcome Guest ( Log In | Register )

Is there a limit to how fast Lame can encode?
gusmahler
post Mar 2 2005, 18:54
Post #1





Group: Members
Posts: 9
Joined: 2-March 05
Member No.: 20271



I briefly touched upon this on another thread, but thought it deserved it's own thread.

Is there a limit beyond which LAME cannot encode any faster? I use LAME 3.96.1 in conjunction with EAC. Using --alt-preset fast standard, my 1.7 GHz Centrino encodes at the same speed as my new 3.2 GHz P4.

If you look at Tom's Hardware (http://www6.tomshardware.com/cpu/20041221/cpu_charts-21.html), you'll see that encoding speed is not limited. Unfortunately, they don't say what settings are used in the test.

So is there some odd reason that I can't possibly fathom that explains why a 1.7 GHz Centrino is the same speed as a 3.2 GHz P4 when the P4 should be 30% or so faster.

And yes, I know the Centino is more efficient and runs faster than 1.7 GHz suggests. But every other benchmark I've run shows the P4 at least 30% faster. Why isn't it faster using LAME 3.96.1 --alt-preset fast standard?
Go to the top of the page
+Quote Post

Posts in this topic
- gusmahler   Is there a limit to how fast Lame can encode?   Mar 2 2005, 18:54
- - phong   Is it possibly I/O bound (e.g. a slow hard drive)?...   Mar 2 2005, 19:36
|- - gusmahler   QUOTE (phong @ Mar 2 2005, 11:36 AM)Is it pos...   Mar 2 2005, 21:19
- - Dologan   Alternatively, if you are using foobar2k you can s...   Mar 2 2005, 19:52
- - robert   @gusmahler are you encoding on the fly? try to rip...   Mar 2 2005, 19:55
- - xmixahlx   perhaps the compiles are different, and if they ar...   Mar 2 2005, 20:22
|- - gusmahler   QUOTE (xmixahlx @ Mar 2 2005, 12:22 PM)perhap...   Mar 2 2005, 21:20
- - phong   Hmm, I've heard stories of P4s with iffy cooli...   Mar 3 2005, 05:15
|- - idioteque   Maybe try taking EAC out of the loop and encode a ...   Mar 3 2005, 05:27
|- - gusmahler   QUOTE (idioteque @ Mar 2 2005, 09:27 PM)Maybe...   Mar 3 2005, 19:37
- - Mike Giacomelli   Could you try some other similar benchmark? Not o...   Mar 4 2005, 02:04
|- - gusmahler   QUOTE (Mike Giacomelli @ Mar 3 2005, 06:04 PM...   Mar 4 2005, 03:17
- - 2thumbs   This would be a prime example of "clock speed...   Mar 4 2005, 03:36
|- - gusmahler   QUOTE (2thumbs @ Mar 3 2005, 07:36 PM)This wo...   Mar 4 2005, 04:06
|- - gusmahler   From looking again at the Tom's Hardware CPU C...   Mar 4 2005, 19:53
- - Never_Again   P4-3.06 GHz (Northwood core)/Win2000+SP4 Pink Floy...   Mar 4 2005, 20:19
|- - gusmahler   QUOTE (Never_Again @ Mar 4 2005, 12:19 PM)P4-...   Mar 4 2005, 20:28
- - robert   FYI, "Dark Side of the Moon" preset fast...   Mar 5 2005, 00:52
- - Decker   QUOTE (Dologan @ Mar 2 2005, 10:52 AM)Alterna...   Mar 5 2005, 02:14
- - uart   Heres some more data points. AthlonXP 2600+ @ 2230...   Mar 5 2005, 06:39
- - robert   look at your LAME4 setting, you are using -q5. 3.9...   Mar 5 2005, 14:18
- - uart   QUOTE (robert @ Mar 5 2005, 05:18 AM)look at ...   Mar 5 2005, 14:46


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



RSS Lo-Fi Version Time is now: 16th September 2014 - 21:37