LAME MP3 Encoding

LAME is an MP3 encoder licensed under the LGPL. This test measures the time required to encode a WAV file to MP3 format.

To run this test with the Phoronix Test Suite, the basic command is: phoronix-test-suite benchmark encode-mp3.

Test Created

6 December 2010

Last Updated

3 September 2019

Test Maintainer

Michael Larabel 

Test Type

Average Install Time

45 Seconds

Average Run Time

1 Minute, 36 Seconds

Test Dependencies

C/C++ Compiler Toolchain

Accolades

300k+ Downloads + 20k+ Public Benchmark Results

Supported Platforms


Public Result Uploads *Reported Test Completions **Reported Installs **Test Profile Page Views ***OpenBenchmarking.orgEventsLAME MP3 Encoding Popularity Statisticspts/encode-mp32010.122011.042011.082011.122012.042012.082012.122013.042013.082013.122014.042014.082014.122015.042015.082015.122016.042016.082016.122017.042017.082017.122018.042018.082018.122019.042019.082019.122020.042020.082020.122021.042021.082021.122022.042022.08100K200K300K400K500K
* Uploading of benchmark result data to OpenBenchmarking.org is always optional (opt-in) via the Phoronix Test Suite for users wishing to share their results publicly.
** Data based on those opting to upload their test results to OpenBenchmarking.org and users enabling the opt-in anonymous statistics reporting while running benchmarks from an Internet-connected platform.
*** Test profile page view reporting began March 2021.
Data current as of 30 September 2022.

Revision History

pts/encode-mp3-1.7.4   [View Source]   Tue, 03 Sep 2019 20:05:20 GMT
Fix for autoconf to help Arm patch, per https://github.com/phoronix-test-suite/test-profiles/issues/91

pts/encode-mp3-1.7.3   [View Source]   Thu, 17 Jan 2019 10:54:19 GMT
Add Windows support.

pts/encode-mp3-1.7.2   [View Source]   Sat, 03 Nov 2018 10:12:04 GMT
Fix patch from previous test profile update. Ref: https://github.com/phoronix-test-suite/test-profiles/issues/36

pts/encode-mp3-1.7.1   [View Source]   Sun, 23 Sep 2018 19:48:19 GMT
Build system fixes/updates for IBM POWER.

pts/encode-mp3-1.7.0   [View Source]   Wed, 07 Feb 2018 12:19:00 GMT
Update against upstream LAME 3.100 release.

pts/encode-mp3-1.6.0   [View Source]   Sat, 09 Sep 2017 11:32:43 GMT
Update against 3.99.5, include more download references

pts/encode-mp3-1.5.0   [View Source]   Mon, 15 Aug 2016 16:06:43 GMT
Add --enable-expopt=full to LAME build

pts/encode-mp3-1.4.0   [View Source]   Wed, 07 Dec 2011 11:52:31 GMT
Update encode-mp3 against upstream LAME 3.99.3

pts/encode-mp3-1.3.1   [View Source]   Mon, 06 Dec 2010 14:41:15 GMT
Initial import into OpenBenchmarking.org

Suites Using This Test

Audio Encoding

C/C++ Compiler Tests

Encoding

CPU Massive

Creator Workloads

Single-Threaded


Performance Metrics

Analyze Test Configuration:

LAME MP3 Encoding 3.100

WAV To MP3

OpenBenchmarking.org metrics for this test profile configuration based on 9,023 public results since 7 February 2018 with the latest data as of 26 September 2022.

Below is an overview of the generalized performance for components where there is sufficient statistically significant data based upon user-uploaded results. It is important to keep in mind particularly in the Linux/open-source space there can be vastly different OS configurations, with this overview intended to offer just general guidance as to the performance expectations.

Component
Percentile Rank
# Compatible Public Results
Seconds (Average)
87th
23
8 +/- 1
77th
8
10 +/- 1
Mid-Tier
75th
> 11
73rd
13
11 +/- 1
73rd
14
11 +/- 1
72nd
13
12 +/- 1
68th
6
12 +/- 1
60th
18
14 +/- 1
53rd
8
18 +/- 1
Median
50th
23
48th
4
25 +/- 2
47th
7
27 +/- 2
45th
3
29 +/- 3
41st
8
32 +/- 2
40th
10
32 +/- 1
37th
8
34 +/- 4
36th
11
35 +/- 1
33rd
3
36 +/- 1
32nd
4
37 +/- 1
30th
3
38 +/- 3
29th
10
38 +/- 2
28th
3
39 +/- 1
26th
20
41 +/- 4
Low-Tier
25th
> 42
24th
7
43 +/- 4
23rd
3
44 +/- 1
22nd
4
45 +/- 2
19th
6
48 +/- 6
18th
6
48 +/- 3
17th
5
50 +/- 4
14th
3
58 +/- 1
14th
3
58 +/- 2
11th
3
75 +/- 1
10th
3
83 +/- 1
8th
7
98 +/- 3
7th
3
112 +/- 8
5th
19
137 +/- 12
4th
4
154 +/- 1
3rd
4
296 +/- 1
2nd
65
320 +/- 24
1st
3
393 +/- 41
1st
25
482 +/- 61
OpenBenchmarking.orgDistribution Of Public Results - WAV To MP38983 Results Range From 4 To 1719 Seconds4458612716820925029133237341445549653757861966070174278382486590694798810291070111111521193123412751316135713981439148015211562160316441685172615003000450060007500

Based on OpenBenchmarking.org data, the selected test / test configuration (LAME MP3 Encoding 3.100 - WAV To MP3) has an average run-time of 2 minutes. By default this test profile is set to run at least 3 times but may increase if the standard deviation exceeds pre-defined defaults or other calculations deem additional runs necessary for greater statistical accuracy of the result.

OpenBenchmarking.orgMinutesTime Required To Complete BenchmarkWAV To MP3Run-Time48121620Min: 1 / Avg: 1.86 / Max: 14

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 0.3%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsWAV To MP3Deviation3691215Min: 0 / Avg: 0.33 / Max: 7

Does It Scale Well With Increasing Cores?

No, based on the automated analysis of the collected public benchmark data, this test / test settings does not generally scale well with increasing CPU core counts. Data based on publicly available results for this test / test settings, separated by vendor, result divided by the reference CPU clock speed, grouped by matching physical CPU core count, and normalized against the smallest core count tested from each vendor for each CPU having a sufficient number of test samples and statistically significant data.

AMDIntelOpenBenchmarking.orgRelative Core Scaling To BaseLAME MP3 Encoding CPU Core ScalingWAV To MP32468121620243248641281.35632.71264.06895.42526.7815

Notable Instruction Set Usage

Notable instruction set extensions supported by this test, based on an automatic analysis by the Phoronix Test Suite / OpenBenchmarking.org analytics engine.

Instruction Set
Support
Instructions Detected
SSE2 (SSE2)
Used by default on supported hardware.
 
MOVD PSHUFD MOVDQA CVTSS2SD COMISD MULSD PUNPCKLQDQ PMULUDQ PADDQ CVTSI2SD ADDSD CVTTSD2SI MOVDQU CVTDQ2PD ADDPD PSRLDQ MOVAPD UNPCKHPD DIVSD CVTTPS2DQ SUBSD XORPD CVTSD2SS MAXSD MINSD UNPCKLPD CVTPS2PD MOVUPD ANDPD CMPNLESD MOVHPD CVTPD2PS CVTDQ2PS MULPD SUBPD SQRTPD SQRTSD CMPLTPD DIVPD
Requires passing a supported compiler/build flag (verified with targets: sandybridge, skylake, tigerlake, cascadelake, sapphirerapids, alderlake, znver2, znver3).
Found on Intel processors since Sandy Bridge (2011).
Found on AMD processors since Bulldozer (2011).

 
VZEROUPPER VINSERTF128 VEXTRACTF128 VPERM2F128 VBROADCASTSS VMASKMOVPS VPERMILPS VBROADCASTSD
Requires passing a supported compiler/build flag (verified with targets: skylake, tigerlake, cascadelake, sapphirerapids, alderlake, znver2, znver3).
Found on Intel processors since Haswell (2013).
Found on AMD processors since Excavator (2016).

 
VPBROADCASTQ VPERMQ VEXTRACTI128 VPBROADCASTD VPERM2I128 VPMASKMOVQ VPGATHERDD VINSERTI128 VPERMD VGATHERDPS VPMASKMOVD VPBLENDD VPBROADCASTW VPBROADCASTB
FMA (FMA)
Requires passing a supported compiler/build flag (verified with targets: skylake, tigerlake, cascadelake, sapphirerapids, alderlake, znver2, znver3).
Found on Intel processors since Haswell (2013).
Found on AMD processors since Bulldozer (2011).

 
VFMADD132PS VFMADD213PS VFMADD132SD VFMADD213SD VFMADD132SS VFMADD231SS VFMSUB231SS VFNMADD231SS VFNMADD132SS VFNMADD213SS VFMADD231PS VFNMADD132SD VFNMADD231SD VFNMADD132PD VFMADD132PD VFNMADD231PD VFMADD213SS VFMSUB132SS VFMADD231SD VFNMADD132PS VFNMADD213PD VFNMADD213SD VFMSUB132SD VFMSUB132PS VFMSUB231SD VFMSUB213SS VFMADD213PD VFNMADD231PS VFMSUB231PS
Advanced Vector Extensions 512 (AVX512)
Requires passing a supported compiler/build flag (verified with targets: tigerlake, cascadelake, sapphirerapids).
 
(ZMM REGISTER USE)
The test / benchmark does honor compiler flag changes.
Last automated analysis: 17 January 2022

This test profile binary relies on the shared libraries libtinfo.so.6, libm.so.6, libmvec.so.1, libc.so.6.

Tested CPU Architectures

This benchmark has been successfully tested on the below mentioned architectures. The CPU architectures listed is where successful OpenBenchmarking.org result uploads occurred, namely for helping to determine if a given test is compatible with various alternative CPU architectures.

CPU Architecture
Kernel Identifier
Verified On
Intel / AMD x86 64-bit
x86_64
(Many Processors)
SPARC64
sparc64
UltraSparc T3
IBM Z
s390x
(Many Processors)
IBM POWER (PowerPC) 64-bit
ppc64le
POWER8, POWER9 16-Core, POWER9 4-Core, POWER9 44-Core, POWER9 8-Core, POWER9 80-Core, POWER9 altivec supported 144-Core, POWER9 altivec supported 32-Core, POWER9 altivec supported 44-Core, POWER9 altivec supported 64-Core, POWER9 altivec supported 88-Core, POWER9 altivec supported 96-Core
IBM POWER (PowerPC) 64-bit
ppc64
POWER7, POWER9 4-Core, PPC970 altivec supported, PPC970MP, e6500
IBM POWER (PowerPC)
ppc
7447A altivec supported
MIPS 64-bit
mips64
Loongson-2K V0.3 FPU V0.1, Loongson-3A R3, Loongson-3A R4, Loongson-3A3000 V0.9 FPU V0.1
MIPS
mips
Baikal-T1 1.2 GHz MIPS P5600 V3.0 FPU V2.0, MIPS P5600 V3.0 FPU V2.0
Intel / AMD x86 32-bit
i686
(Many Processors)
Intel / AMD x86 32-bit
i386
(Many Processors)
ARMv7 32-bit
armv7l
ARMv7 4-Core, ARMv7 Cortex-A15, ARMv7 Cortex-A15 8-Core, ARMv7 Cortex-A53 4-Core, ARMv7 Cortex-A7 4-Core, ARMv7 Cortex-A72 3-Core, ARMv7 Cortex-A72 4-Core, ARMv7 rev 0 4-Core, ARMv7 rev 1 2-Core, ARMv7 rev 1 4-Core, ARMv7 rev 10 2-Core, ARMv7 rev 10 4-Core, ARMv7 rev 2, ARMv7 rev 2 4-Core, ARMv7 rev 3 3-Core, ARMv7 rev 3 4-Core, ARMv7 rev 3 8-Core, ARMv7 rev 4 2-Core, ARMv7 rev 4 4-Core, ARMv7 rev 5 3-Core, ARMv7 rev 5 4-Core, ARMv7 rev 5 8-Core, Exynos ARMv7 rev 0 4-Core
ARMv6 32-bit
armv6l
ARMv6-compatible rev 7, ARMv7
Arm
arm
ARM Cortex-A7 r0p5
DEC Alpha
alpha
Alpha
ARMv8 64-bit
aarch64
AArch64 rev 1, AArch64 rev 14, AArch64 rev 2, AArch64 rev 4, ARMVv8 Cortex-A53 4-Core, ARMVv8 Cortex-A73 6-Core, ARMv8, ARMv8 9-Core, ARMv8 Cortex-A53 24-Core, ARMv8 Cortex-A53 4-Core, ARMv8 Cortex-A53 6-Core, ARMv8 Cortex-A55 4-Core, ARMv8 Cortex-A57 4-Core, ARMv8 Cortex-A72, ARMv8 Cortex-A72 16-Core, ARMv8 Cortex-A72 2-Core, ARMv8 Cortex-A72 4-Core, ARMv8 Cortex-A72 6-Core, ARMv8 Cortex-A72 8-Core, ARMv8 Cortex-A73, ARMv8 Cortex-A73 6-Core, ARMv8 Cortex-A73 8-Core, ARMv8 Cortex-A75 8-Core, ARMv8 Neoverse-N1, ARMv8 Neoverse-N1 2-Core, ARMv8 Neoverse-N1 32-Core, ARMv8 Neoverse-N1 64-Core, ARMv8 Neoverse-N1 8-Core, ARMv8 Neoverse-V1, ARMv8 rev 0 4-Core, ARMv8 rev 0 6-Core, ARMv8 rev 0 8-Core, ARMv8 rev 1 4-Core, ARMv8 rev 3 4-Core, ARMv8 rev 3 6-Core, ARMv8 rev 4 4-Core, ARMv8 rev 4 6-Core, ARMv8 rev 4 8-Core, Amlogic, Amlogic ARMv8 Cortex-A53 4-Core, Ampere ARMv8 32-Core, Ampere eMAG ARMv8 16-Core, Ampere eMAG ARMv8 32-Core, Ampere eMAG ARMv8 4-Core, Ampere eMAG ARMv8 8-Core, Apple M1, Apple M2, Cavium ThunderX, FT2000AHK, Rockchip, Rockchip ARMv8 4-Core, Rockchip ARMv8 Cortex-A53 4-Core, Rockchip ARMv8 Cortex-A72 6-Core, SiFive RISC-V

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