Memory hierarchy characterization of SPEC CPU2006 and SPEC CPU2017 on the Intel Xeon Skylake-SP

PloS One
Agustín Navarro-TorresVíctor Viñals-Yúfera

Abstract

SPEC CPU is one of the most common benchmark suites used in computer architecture research. CPU2017 has recently been released to replace CPU2006. In this paper we present a detailed evaluation of the memory hierarchy performance for both the CPU2006 and single-threaded CPU2017 benchmarks. The experiments were executed on an Intel Xeon Skylake-SP, which is the first Intel processor to implement a mostly non-inclusive last-level cache (LLC). We present a classification of the benchmarks according to their memory pressure and analyze the performance impact of different LLC sizes. We also test all the hardware prefetchers showing they improve performance in most of the benchmarks. After comprehensive experimentation, we can highlight the following conclusions: i) almost half of SPEC CPU benchmarks have very low miss ratios in the second and third level caches, even with small LLC sizes and without hardware prefetching, ii) overall, the SPEC CPU2017 benchmarks demand even less memory hierarchy resources than the SPEC CPU2006 ones, iii) hardware prefetching is very effective in reducing LLC misses for most benchmarks, even with the smallest LLC size, and iv) from the memory hierarchy standpoint the methodologies commonly used to sel...Continue Reading

References

Jun 15, 2010·Current Opinion in Critical Care·Andrew Shaw, Thomas VandeVen
Mar 19, 2019·Intractable & Rare Diseases Research·Garima JainPranay Tanwar

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Methods Mentioned

BETA
profiler
chip

Software Mentioned

Linux profiler
perlbench
EEMBC
Core2Duo
SimPoint
SP
- SP
m64
CentOS
libquantum

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