[vorbis] Choosing a processor
Rik Hemsley
rik at kde.org
Tue May 29 11:51:12 PDT 2001
#if Joane Lispton
> Hello!
>
> I am about to buy a new computer, and because encoding/decoding .ogg files
> is the most processor intensive thing I intend to regularly do, I would like
> to know which is the "recommended" processor for real-time encoding (I
> record my favourite radio shows).
PIII (Celeron) (Coppermine) 600
---------
rik at without toencode > time oggenc track15.cdda.wav
Opening with wav module: WAV file reader
Encoding "track15.cdda.ogg" [100.0%] [ 0m00s remaining] |
Done encoding file "track15.cdda.ogg"
File length: 3m 46.0s
Elapsed time: 1m 40.9s
Rate: 2.2482
Average bitrate: 117.7 kb/s
oggenc track15.cdda.wav 97.94s user 1.31s system 98% cpu 1:40.90 total
---------
rik at without toencode > time oggenc -b 256 track15.cdda.wav
Opening with wav module: WAV file reader
Encoding "track15.cdda.ogg" [100.0%] [ 0m00s remaining] |
Done encoding file "track15.cdda.ogg"
File length: 3m 46.0s
Elapsed time: 1m 46.6s
Rate: 2.1263
Average bitrate: 222.1 kb/s
oggenc -b 256 track15.cdda.wav 104.61s user 1.40s system 99% cpu 1:46.49 total
---------
So for -b 128, slightly better than 3x realtime.
For -b 256, exactly 3x realtime.
Rik
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