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.

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

Project Site

kevinbeason.com

Test Created

6 December 2010

Last Updated

11 October 2019

Test Maintainer

Michael Larabel

Test Type

Processor

Average Install Time

4 Seconds

Average Run Time

1 Hour, 22 Seconds

Accolades

200k+ Downloads + 10k+ Public Benchmark Results

Supported Platforms


Public Result UploadsTest Completions*Reported Installs*OpenBenchmarking.orgEventsSmallpt Popularity Statisticspts/smallpt2011.012011.052011.092012.012012.052012.092013.012013.052013.092014.012014.052014.092015.012015.052015.092016.012016.052016.092017.012017.052017.092018.012018.052018.092019.012019.052019.092020.012020.052020.092021.0130K60K90K120K150K
* 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.
Data current as of Mon, 18 Jan 2021 21:55:37 GMT.

Revision History

pts/smallpt-1.2.1   [View Source]   Fri, 11 Oct 2019 10:50:27 GMT
Windows support.

pts/smallpt-1.2.0   [View Source]   Fri, 07 Dec 2018 15:54:02 GMT
Apply -O3 optimization by default per https://github.com/phoronix-test-suite/test-profiles/pull/42

pts/smallpt-1.1.0   [View Source]   Sat, 28 Jul 2018 12:33:45 GMT
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]   Sun, 08 Apr 2018 06:31:53 GMT
Fix building on BSD.

pts/smallpt-1.0.2   [View Source]   Mon, 12 Oct 2015 11:55:19 GMT
Add Solaris and BSD to SupportedPlatforms.

pts/smallpt-1.0.1   [View Source]   Mon, 12 Mar 2012 16:18:55 GMT
Ensure smallpt g++ compilation honors CXXFLAGS.

pts/smallpt-1.0.0   [View Source]   Mon, 06 Dec 2010 15:21:16 GMT
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 3,296 public results since 7 December 2018 with the latest data as of 19 January 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.

Component
Percentile Rank
# Matching Public Results
Seconds (Average)
76th
5
11 +/- 1
Mid-Tier
75th
> 11
63rd
9
17 +/- 5
61st
4
19 +/- 2
57th
3
22 +/- 1
56th
3
23 +/- 1
55th
6
23 +/- 2
54th
5
24 +/- 1
54th
6
24 +/- 5
53rd
3
26 +/- 3
53rd
7
26 +/- 2
53rd
7
26 +/- 5
52nd
8
26 +/- 5
Median
50th
27
50th
7
27 +/- 1
49th
4
28 +/- 3
49th
4
28 +/- 2
49th
3
28 +/- 3
49th
3
29 +/- 3
48th
3
29 +/- 4
47th
3
30 +/- 2
47th
10
30 +/- 2
44th
15
32 +/- 1
44th
4
33 +/- 6
43rd
3
34 +/- 5
42nd
5
35 +/- 8
41st
3
36 +/- 2
41st
4
36 +/- 1
40th
7
37 +/- 5
40th
4
38 +/- 3
39th
15
38 +/- 7
39th
13
38 +/- 2
38th
8
39 +/- 6
38th
3
39 +/- 3
38th
13
39 +/- 2
38th
3
40 +/- 4
37th
5
40 +/- 9
37th
7
41 +/- 4
36th
15
42 +/- 2
35th
5
44 +/- 1
32nd
5
50 +/- 14
32nd
12
50 +/- 12
31st
9
52 +/- 2
30th
6
54 +/- 2
28th
3
66 +/- 14
28th
6
67 +/- 2
28th
4
67 +/- 9
27th
8
68 +/- 5
26th
3
75 +/- 4
26th
4
75 +/- 13
Low-Tier
25th
> 76
25th
6
77 +/- 11
25th
3
78 +/- 7
24th
6
80 +/- 7
24th
3
81 +/- 4
24th
3
81 +/- 12
24th
4
81 +/- 5
23rd
3
84 +/- 1
22nd
9
87 +/- 1
22nd
4
91 +/- 3
20th
5
95 +/- 10
19th
4
103 +/- 9
18th
3
109 +/- 20
17th
64
111 +/- 19
17th
3
112 +/- 19
16th
3
121 +/- 21
16th
11
123 +/- 22
15th
9
125 +/- 26
14th
3
129 +/- 34
13th
60
133 +/- 39
9th
6
185 +/- 7
8th
3
196 +/- 13
8th
7
202 +/- 2
6th
3
231 +/- 10
6th
8
233 +/- 4
3rd
4
305 +/- 20
3rd
4
340 +/- 1
1st
3
1954 +/- 11
1st
3
3396 +/- 638
OpenBenchmarking.orgDistribution Of Public Results - Global Illumination Renderer; 128 Samples3296 Results Range From 1 To 4161 Seconds1851692533374215055896737578419251009109311771261134514291513159716811765184919332017210121852269235324372521260526892773285729413025310931933277336134453529361336973781386539494033411742015001000150020002500

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-Time816243240Min: 1 / Avg: 3.42 / Max: 38

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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