Hydrogenaudio Forums > A faster Windows mppenc 1.15v

Full Version: A faster Windows mppenc 1.15v

Hydrogenaudio Forums > Lossy Audio Compression > MPC

CiTay

Jun 29 2005, 08:49

Seed writes:

QUOTE

We've replaced the 1.15v encoder for Windows with a faster compile that's been tested with many tracks and it proved to produce identical files to the older mppenc. Speed tests show between 5% and 14% of speedup on a variety of CPUs. Tests were carried out on:

Celeron 333
Pentium M (Dothan)
Pentium 4 (Northwood)
Xeon

Athlon
Thunderbird
Athlon XP
Athlon 64 (Clawhammer, Newcastle, Venice)

Download on musepack.net

rjamorim

Jun 29 2005, 13:20

What changed? ICL? Visual Studio with processor pack? Different compiler switches?

CiTay

Jun 29 2005, 13:40

QUOTE(rjamorim @ Jun 29 2005, 09:20 PM)

What changed? ICL? Visual Studio with processor pack? Different compiler switches?

MSVC 8.

P.S., speeds with --quality 5 on a P4 2.6C:

1.15v old: 18.7x

1.15v new: 20.4x

9% speed increase

ilikedirtthe2nd

Jun 29 2005, 13:51

'bout 6 % speedup on my System (AMD XP 1800+), nice

ps: old 14.0x new 14.9x

Societal Eclipse

Jun 29 2005, 15:44

I'll be able to take advantage of this as soon as Amazon sends me the CDs they've delayed for three months.

mtm

Jun 29 2005, 15:57

AthlonXP 1700+: 12.26x vs 13.40x. Over 9% faster.

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