Smallpt

Smallpt is a C++ global illumination renderer written in less than 100 lines of code. Global illumination is done via unbiased Monte Carlo path tracing and there is multi-threading support via the OpenMP library.

Learn more about this test at the upstream project site: http://kevinbeason.com/smallpt/.

This utility test profile is maintained by Michael Larabel. This OpenBenchmarking.org test profile was created on 6 December 2010 and last updated on 11 October 2019. To run this test with the Phoronix Test Suite, the basic command is: phoronix-test-suite benchmark smallpt.

This test has an average install time of 2 seconds and an average run-time of 52 minutes, 33 seconds.

200k+ Downloads + 10k+ Public Benchmark Results

Installation StatsTest Completion StatsOpenBenchmarking.orgEventsSmallpt Popularitypts/smallpt2015.102015.122016.022016.042016.062016.082016.102016.122017.022017.042017.062017.082017.102017.122018.022018.042018.062018.082018.102018.122019.022019.042019.062019.082019.102019.122020.022020.042020.062020.08270722514180211352809035045

* Data based on those opting to upload their test results to OpenBenchmarking.org and users enabling the opt-in anonymous statistics reporting.

Revision History

pts/smallpt-1.2.1   [View Source]   11 Oct 2019 10:50 EDT
Windows support.

pts/smallpt-1.2.0   [View Source]   07 Dec 2018 15:54 EST
Apply -O3 optimization by default per https://github.com/phoronix-test-suite/test-profiles/pull/42

pts/smallpt-1.1.0   [View Source]   28 Jul 2018 12:33 EDT
User more samples per pixel so more demanding for newer CPus, also use PTS timer for greater precision.

pts/smallpt-1.0.3   [View Source]   08 Apr 2018 06:31 EDT
Fix building on BSD.

pts/smallpt-1.0.2   [View Source]   12 Oct 2015 11:55 EDT
Add Solaris and BSD to SupportedPlatforms.

pts/smallpt-1.0.1   [View Source]   12 Mar 2012 16:18 EDT
Ensure smallpt g++ compilation honors CXXFLAGS.

pts/smallpt-1.0.0   [View Source]   06 Dec 2010 15:21 EST
Initial import into OpenBenchmarking.org

Suites Using This Test

Multi-Core

Creator Workloads

Renderers

Performance Metrics

Analyze Test Configuration:

Smallpt 1.0

Global Illumination Renderer; 128 Samples

OpenBenchmarking.org metrics for this test profile configuration based on 2,865 public samples since 7 December 2018 with the latest data as of 24 October 2020.

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
Seconds (Average)
Mid-Tier
75th
> 12
53rd
27
Median
50th
30
Low-Tier
25th
> 82
1st
1105
OpenBenchmarking.orgDistribution Of Public Results - Global Illumination Renderer; 128 Samples2865 Results Range From 1 To 4044 Seconds182163244325406487568649730811892973105411351216129713781459154016211702178318641945202621072188226923502431251225932674275528362917299830793160324133223403348435653646372738083889397040515001000150020002500

Based on OpenBenchmarking.org data, the selected test / test configuration (Smallpt 1.0 - Global Illumination Renderer; 128 Samples) has an average run-time of 4 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 BenchmarkGlobal Illumination Renderer; 128 SamplesRun-Time714212835Min: 1 / Avg: 3.52 / Max: 35

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 1.1%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsGlobal Illumination Renderer; 128 SamplesDeviation48121620Min: 0 / Avg: 1.07 / Max: 17

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