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Benchmark Data¶

Important

Performance varies by use, configuration and other factors. Learn more at https://intel.com/PerformanceIndex.

Performance results are based on testing as of dates shown in configurations and may not reflect all publicly available updates. See configuration disclosure for details. No product or component can be absolutely secure.

Your costs and results may vary.

Intel technologies may require enabled hardware, software or service activation.

The following section is applicable to:

Benchmark Platforms¶

Intel® Core™ i7-1185GRE Processor

Unless otherwise stated, results obtained for the Intel® Core™ i7-1185GRE Processor were performed on the following system:

Manufacturer

Vecow*

MPN

SPC-7100

Processor

Intel® Core™ i7-1185GRE Processor

1.8 GHz to 4.4 GHz

15W TDP

Memory

32 GB DDR4

OS

ECI core-jammy

Intel Atom® x6425RE Processor

Unless otherwise stated, results obtained for the Intel Atom® x6425RE Processor were performed on the following system:

Manufacturer

ASRock*

MPN

Processor

Intel Atom® x6425RE Processor

1.9 GHz

12W TDP

Memory

16 GB DDR4

OS

ECI core-jammy

48-Hour Benchmark Results¶

The 48-Hour Benchmark has been used to evaluate the performance of a few systems. The 48-Hour Benchmark utilizes the following workloads with and without Cache Allocation Technology:

Caterpillar - The Caterpillar benchmark measures the execution time variation of a memory test workload. The performance of the workload is impacted by cache misses. Using Cache Allocation Technology improves application performance by assigning CPU affinity to cache ways, which can be dedicated to real-time applications.
Cyclictest Workload - Cyclictest is most commonly used for benchmarking real-time (RT) systems. It is one of the most frequently used tools for evaluating the relative performance of an RT. Cyclictest accurately and repeatedly measures the difference between a thread’s intended wake-up time and the time at which it actually wakes up to provide statistics about the system’s latency. It can measure latency in real-time systems caused by the hardware, the firmware, and the operating system.

The data shown below demonstrates the advantage of Cache Allocation Technology when executing real-time workloads.

See also

See section 48-Hour Benchmark for more information about this benchmark.

The following configurations were used:

Caterpillar without Cache Allocation Technology

Benchmark: Caterpillar
Benchmark Affinity: Core 3
Benchmark Priority: chrt 99
Noisy Neighbor: stress-ng memcpy
Noisy Neighbor Affinity: 0
Duration: ~3 hours
Cache Allocation Technology Enabled: No

Caterpillar with Cache Allocation Technology

Benchmark: Caterpillar
Benchmark Affinity: Core 3
Benchmark Priority: chrt 99
Noisy Neighbor: stress-ng memcpy
Noisy Neighbor Affinity: Core 0
Duration: ~3 hours
Cache Allocation Technology Enabled: Yes (COS0=0x0f → Cores 0-2, COS3=0xf0 → Core 3)

Cyclictest without Cache Allocation Technology

Benchmark: Cyclictest Workload with interval of 250μs
Benchmark Affinity: Core 3
Benchmark Priority: chrt 99
Noisy Neighbor: stress-ng memcpy
Noisy Neighbor Affinity: Core 0
Duration: 24 hours
Cache Allocation Technology Enabled: No

Cyclictest with Cache Allocation Technology

Benchmark: Cyclictest Workload with interval of 250μs
Benchmark Affinity: Core 3
Benchmark Priority: chrt 99
Noisy Neighbor: stress-ng memcpy
Noisy Neighbor Affinity: Core 0
Duration: 24 hours
Cache Allocation Technology Enabled: Yes (COS0=0x0f → Cores 0-2, COS1=0xf0 → Core 3)

Intel® Core™ i7-1185GRE Processor - Caterpillar¶

See also

See section Caterpillar for more information about this benchmark.

	Without CAT	With CAT
Minimum Sample Jitter (CPU Cycles)	1062	385
Maximum Sample Jitter (CPU Cycles)	1398	543
Standard Deviation (CPU Cycles)	21.89	8.89

Intel® Atom x6425RE Processor - Caterpillar¶

See also

See section Caterpillar for more information about this benchmark.

	Without CAT	With CAT
Minimum Sample Jitter (CPU Cycles)	15958	2109
Maximum Sample Jitter (CPU Cycles)	19658	2490
Standard Deviation (CPU Cycles)	446.09	31.29

Intel® Core™ i7-1185GRE Processor - Cyclictest¶

See also

See section Cyclictest Workload for more information about this benchmark.

	Without CAT	With CAT
Total Samples	345600000	345600000
Minimum Latencies (μs)	00001	0000`
Average Latencies (μs)	00002	00001
Maximum Latencies (μs)	00055	00022

Intel® Atom x6425RE Processor - Cyclictest¶

See also

See section Cyclictest Workload for more information about this benchmark.

	Without CAT	With CAT
Total Samples	345600000	345600000
Minimum Latencies (μs)	00002	00002
Average Latencies (μs)	00005	00002
Maximum Latencies (μs)	00036	00036