C-Ray

This is a test of C-Ray, a simple multi-threaded raytracer designed to test the floating-point CPU performance.

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

Project Site

nuclear.mutantstargoat.com

Source Repository

github.com

Test Created

6 December 2010

Last Updated

27 April 2024

Test Maintainer

Michael Larabel 

Test Type

Processor

Average Install Time

3 Seconds

Average Run Time

23 Seconds

Test Dependencies

C/C++ Compiler Toolchain

Accolades

300k+ Downloads + 40k+ Public Benchmark Results

Supported Platforms

Public Result Uploads *Reported Test Completions **Reported Installs **Test Profile Page Views ***OpenBenchmarking.orgEventsC-Ray Popularity Statisticspts/c-ray2010.122011.052011.102012.032012.082013.012013.062013.112014.042014.092015.022015.072015.122016.052016.102017.032017.082018.012018.062018.112019.042019.092020.022020.072020.122021.052021.102022.032022.082023.012023.062023.112024.04100K200K300K400K500K
* 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 updated weekly as of 22 June 2024.
1080p36.6%5K29.1%4K34.3%Resolution Option PopularityOpenBenchmarking.org

Revision History

pts/c-ray-2.0.0   [View Source]   Sat, 27 Apr 2024 17:19:51 GMT
Update against C-Ray 2.0 from new repository.

pts/c-ray-1.2.0   [View Source]   Sat, 28 Jul 2018 12:25:02 GMT
Increase the ray and image size to be more demanding on newer CPUs.

pts/c-ray-1.1.1   [View Source]   Sat, 03 Mar 2018 20:19:56 GMT
Add Windows support.

pts/c-ray-1.1.0   [View Source]   Sun, 29 Jan 2012 11:41:52 GMT
Build c-ray directly rather than using its basic makefile.

pts/c-ray-1.0.0   [View Source]   Mon, 06 Dec 2010 14:37:43 GMT
Initial import into OpenBenchmarking.org

Suites Using This Test

C/C++ Compiler Tests

Multi-Core

Raytracing

CPU Massive

Creator Workloads

Server CPU Tests

Renderers


Performance Metrics

Analyze Test Configuration:

C-Ray 2.0

Resolution: 1080p - Rays Per Pixel: 16

OpenBenchmarking.org metrics for this test profile configuration based on 425 public results since 27 April 2024 with the latest data as of 27 June 2024.

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)
2 x AMD EPYC 9754 128-Core
100th
6
4
2 x AMD EPYC 9684X 96-Core
97th
8
4
2 x Intel Xeon 6780E
96th
4
5
2 x Intel Xeon 6766E
95th
4
5
2 x INTEL XEON PLATINUM 8592
94th
5
6
ARMv8 Neoverse-N1 128-Core
93rd
3
7
2 x Intel Xeon Max 9480
90th
6
8
AMD EPYC 9684X 96-Core
90th
6
8
AMD EPYC 9654 96-Core
88th
4
8
Intel Xeon 6780E
86th
6
9
AMD Ryzen Threadripper 7980X 64-Cores
86th
9
9 +/- 1
Intel Xeon 6766E
83rd
6
10
INTEL XEON PLATINUM 8592
82nd
4
11
2 x Intel Xeon Platinum 8380
80th
5
14
AMD EPYC 8534PN 64-Core
79th
4
15
2 x Intel Xeon Gold 6444Y
78th
4
16
2 x Intel Xeon Platinum 8280
77th
4
17
Mid-Tier
75th
> 20
2 x AMD EPYC 7303 16-Core
74th
4
22
AMD Ryzen Threadripper 3970X 32-Core
73rd
4
23
Intel Xeon Gold 6414U
72nd
3
24
2 x Intel Xeon Silver 4316
70th
7
26
AMD Ryzen 9 5950X 16-Core
62nd
40
28 +/- 2
AMD EPYC 4564P 16-Core
60th
8
29
AMD Ryzen 9 7950X 16-Core
59th
5
29 +/- 1
AMD EPYC 4584PX 16-Core
57th
8
30
AMD EPYC 7551 32-Core
52nd
3
36
Median
50th
39
AMD EPYC 4484PX 12-Core
50th
12
39
AMD Ryzen 9 7900 12-Core
48th
4
41 +/- 1
AMD EPYC 4464P 12-Core
46th
15
42
Intel Core i9-10980XE
43rd
3
44 +/- 1
AMD EPYC 4364P 8-Core
41st
3
55
AMD EPYC 4344P 8-Core
40th
7
56
Intel Xeon E E-2488
38th
4
61 +/- 1
AMD Ryzen 7 7840HS
37th
5
63
Intel Core i5-14400F
35th
7
64 +/- 1
AMD Ryzen 9 5900HX
34th
3
69
Intel Xeon Silver 4216
32nd
4
71
AMD EPYC 4244P 6-Core
30th
11
74
AMD Ryzen 5 7600 6-Core
27th
3
75 +/- 1
Low-Tier
25th
> 76
Intel Core Ultra 7 155H
25th
10
76 +/- 2
AMD Ryzen 5 8400F 6-Core
23rd
6
79
Intel Xeon E5-2680 v4
22nd
3
80
AMD Ryzen 7 7840U
22nd
10
81 +/- 10
Intel Core Ultra 7 165U
20th
8
88
AMD EPYC 7F32 8-Core
19th
3
95
AMD Ryzen 7 PRO 6850U
17th
3
105
AMD EPYC 4124P 4-Core
15th
7
109
Intel Core i7-1280P
14th
4
120
AMD Ryzen 7 PRO 5850U
13th
3
124
AMD Ryzen 7 4700U
12th
3
143
Intel Xeon E3-1280 v5
9th
4
191
Intel Core i7-1185G7
7th
4
208
Intel Core i7-8565U
5th
3
272 +/- 1
rv64imafdcvsu
1st
7
1653 +/- 21
OpenBenchmarking.orgDistribution Of Public Results - Resolution: 1080p - Rays Per Pixel: 16420 Results Range From 4 To 2152 Seconds450961421882342803263724184645105566026486947407868328789249701016106211081154120012461292133813841430147615221568161416601706175217981844189019361982202820742120216650100150200250

Based on OpenBenchmarking.org data, the selected test / test configuration (C-Ray 2.0 - Resolution: 1080p - Rays Per Pixel: 16) has an average run-time of 6 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 BenchmarkResolution: 1080p - Rays Per Pixel: 16Run-Time1020304050Min: 1 / Avg: 5.66 / Max: 48

Does It Scale Well With Increasing Cores?

Yes, based on the automated analysis of the collected public benchmark data, this test / test settings does 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.

OpenBenchmarking.orgRelative Core Scaling To BaseC-Ray CPU Core ScalingResolution: 1080p - Rays Per Pixel: 16681216321.793.585.377.168.95

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.
 
DIVSD CVTSD2SS CVTSS2SD MOVD CVTDQ2PS CVTSI2SD MULSD SUBSD CVTTSD2SI MOVAPD ADDSD MAXSD MINSD MOVUPD ADDPD MULPD SUBPD CVTDQ2PD UNPCKHPD ANDPD COMISD MOVDQU UNPCKLPD CVTPD2PS MOVDQA PUNPCKLQDQ XORPD SQRTSD MOVHPD DIVPD MOVLPD CVTPS2PD
Last automated analysis: 6 June 2024

This test profile binary relies on the shared libraries libm.so.6, 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)
RISC-V 64-bit
riscv64
rv64imafdcv, rv64imafdcvsu
ARMv8 64-bit
arm64
Apple M1
ARMv8 64-bit
aarch64
ARMv8 Neoverse-N1, ARMv8 Neoverse-N1 128-Core

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