Encoding a CD in tmpfs on an AMD Phenom II X4 970@3.5GHz using caudec on arch linux x64, vorbis@q5:
caudec -c vorbis -O /tmp/vorbis-lancer *.wav
17.43 seconds (read: 1209.9 MB/s, write: 4.1 MB/s, rate: 200.0x)
17.44 seconds (read: 1253.2 MB/s, write: 4.1 MB/s, rate: 200.0x)
17.41 seconds (read: 1260.0 MB/s, write: 4.1 MB/s, rate: 200.3x)
WAV: 586.8 MiB 100.0%
Source: 586.8 MiB 100.0% 1411 kbps
Ogg Vorbis: 67.7 MiB 11.5% 162 kbps
caudec -c vorbis -O /tmp/vorbis-default *.wav
20.73 seconds (read: 1301.0 MB/s, write: 3.2 MB/s, rate: 168.2x)
20.69 seconds (read: 1279.6 MB/s, write: 3.2 MB/s, rate: 168.5x)
20.72 seconds (read: 1280.1 MB/s, write: 3.2 MB/s, rate: 168.3x)
WAV: 586.8 MiB 100.0%
Source: 586.8 MiB 100.0% 1411 kbps
Ogg Vorbis: 63.5 MiB 10.8% 152 kbps