The Embedded Microprocessor Benchmark Consortium (EEMBC) announced the availability of CoreMark 1.0, the first openly-available benchmark from the organisation.
While traditional EEMBC benchmarks focus on specific embedded market segments and are aimed at approximating real-world performance of embedded processors, CoreMark provides a starting point for measuring a processor’s core performance and basic pipeline structure, and can be used to evaluate processors ranging from 8-bit microcontrollers to high-end 32-bit devices and architectures.
To establish an industry standard, all EEMBC benchmarks, including CoreMark, are defined by EEMBC members and are thoroughly tested on a wide variety of platforms prior to release. Also, similar to other EEMBC industry-standard benchmarks, the portability of CoreMark is a key requirement to ensure wide-ranging usability.
The CoreMark workload contains several commonly used algorithms that include matrix manipulation to allow for the use of MAC and math operations, linked-list manipulation to exercise the use of pointers, state machine operation (common use of data dependent branches), and cyclic redundancy check (CRC). These algorithms deliver a realistic mixture of read/write operations, integer operations and control operations.
“As a service to the entire embedded processor industry, one of our primary goals for CoreMark was to create a free CPU benchmark standard,” stated Shay Gal-On, EEMBC director of software engineering. “Similar to the infamous Dhrystone benchmark, CoreMark is free, small and easily portable to most systems. However, unlike Dhrystone, CoreMark is not susceptible to a compiler’s ability to optimise the work away and is governed by consistent run and reporting rules.”
EEMBC has set up a specific website (www.coremark.org) for the distribution of CoreMark source code and the publication of scores. All CoreMark users are encouraged to enter their scores and platform configurations on this website. This publicly available list of scores will allow customers to make quick comparisons between processors. Although CoreMark contains its own self-verification software, to ensure that extra level of credibility, the EEMBC Technology Centre will offer score certifications on CoreMark for EEMBC members.
“The accessibility of CoreMark will make it easier for embedded industry cohorts to challenge submitted scores,” elaborated Markus Levy, EEMBC president. “In support of these challenges, and for other topics related to embedded processor benchmarking, we have set up a discussion group, also available through our new website. Additionally, the website contains a blog section to allow EEMBC members to provide more in-depth explanations and analysis relative to their CoreMark results.”
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