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.
Project Site
lame.sourceforge.netTest Created
6 December 2010Last Updated
3 September 2019Test Maintainer
Michael LarabelTest Type
Average Install Time
40 SecondsAverage Run Time
2 Minutes, 14 SecondsTest Dependencies
C/C++ Compiler ToolchainAccolades
300k+ Downloads + 20k+ Public Benchmark ResultsSupported Platforms
** 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 21 September 2021.
Suites Using This Test
Performance Metrics
Analyze Test Configuration:LAME MP3 Encoding 3.100
WAV To MP3
OpenBenchmarking.org metrics for this test profile configuration based on 7,938 public results since 7 February 2018 with the latest data as of 21 September 2021.
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.
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.
Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 0.3%.
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.
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.
Found on Intel processors since Sandy Bridge (2011).
Found on AMD processors since Bulldozer (2011).
Found on Intel processors since Haswell (2013).
Found on AMD processors since Excavator (2016).
Found on Intel processors since Haswell (2013).
Found on AMD processors since Bulldozer (2011).
This test profile binary relies on the shared libraries libm.so.6, libmvec.so.1, libc.so.6.
Recent Test Results
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1 System - 47 Benchmark Results |
Unknown - 2048MB - 25GB Ubuntu 20.04 - 5.4.0-74-generic - 1.0.2 |
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Intel Core i3-8100T - LENOVO 313D - Intel Cannon Lake PCH Ubuntu 20.04 - 5.11.0-27-generic - GNOME Shell 3.36.9 |
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1 System - 5 Benchmark Results |
Intel Core i7-9750H - Dell 0VYV0G - Intel Cannon Lake PCH Arch rolling - 5.14.6-arch1-1 - X Server 1.20.10 |
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1 System - 102 Benchmark Results |
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1 System - 1 Benchmark Result |
ARMv8 Cortex-A72 - BCM2835 Raspberry Pi 4 Model B Rev 1.4 - Broadcom BCM2711 Ubuntu 21.04 - 5.11.0-1017-raspi - GNOME Shell 3.38.4 |
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1 System - 5 Benchmark Results |
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6 Systems - 133 Benchmark Results
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AMD Ryzen 9 3950X 16-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 20.04 - 5.4.0-9-generic - GNOME Shell 3.34.3
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1 System - 1 Benchmark Result
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AMD Ryzen 7 2700 Eight-Core - ASRock B450M Pro4 - AMD 17h Debian 11 - 5.10.0-8-amd64 - GNOME Shell 3.38.4
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1 System - 1 Benchmark Result
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Intel Atom N455 - Medion E122X - Intel Atom D4xx Ubuntu 20.04 - 5.4.0-84-generic - LXQt 0.14.1
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3 Systems - 15 Benchmark Results
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AMD Ryzen 7 5800H - LENOVO LNVNB161216 - 2 x 16384 MB 3200MHz Samsung M471A2G43AB2-CWE Microsoft Windows 10 Home Build 19042 - 10.0 - 461.56
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1 System - 1 Benchmark Result
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5 Systems - 74 Benchmark Results
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AMD Ryzen 9 5950X 16-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 21.10 - 5.14.0-rc7-amd-pstate-phx - GNOME Shell 40.2
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44 Systems - 23 Benchmark Results
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Intel Core i5-7500T - HP 82A5 - Intel Xeon E3-1200 v6 Ubuntu 20.04 - 5.10.0-1033-oem - X Server 1.20.9
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2 Systems - 9 Benchmark Results
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Intel Core i5-3470 - Intel DH61CR - 2 x 4096 MB Kingston Microsoft Windows 10 Pro Build 19042 - 10.0 - 10.18.10.4252 |
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3 Systems - 268 Benchmark Results |
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11 Systems - 217 Benchmark Results |
AMD Ryzen 9 5950X 16-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 20.04 - 5.9.0-050900-generic - GNOME Shell 3.36.4 |
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4 Systems - 55 Benchmark Results |
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Featured Processor Comparison |
AMD Ryzen 9 3950X 16-Core - ASUS ROG CROSSHAIR VIII HERO - AMD Starship Ubuntu 20.04 - 5.7.0-999-generic - GNOME Shell 3.36.1 |
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12 Systems - 209 Benchmark Results |
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3 Systems - 182 Benchmark Results |
Intel Core i9-7980XE - ASUS PRIME X299-A - Intel Sky Lake-E DMI3 Registers Ubuntu 18.04 - 4.15.2-041502-generic - GNOME Shell 3.26.2 |