perf/mem
perf bench mem benchmarks measuring demand-fault and memset throughput.
Benchmark Profile
Type: Micro
Kernel subsystem: Memory management, page faults, page clearing, hugetlb
Coverage: Directly measured
Topology: Single role: executer
Overview
Runs demand-faulted 32 GB mappings backed by 4 KB and 1 GB pages, plus a 16 GB memset using 1 GB chunks. The runner temporarily reserves the 32 required 1 GB huge pages at runtime and restores the original pool size after the 1 GB mmap variant. Sensitive to page allocation, fault handling, page clearing, hugetlb and memset changes.
Fastpath Parameters
Name |
Description |
|---|---|
collection |
perf bench collection to run. Set to ‘mem’. |
benchmark |
Comma-separated list of perf bench mem commands, including their arguments. |
Result Classes
Result class names contain the complete command, so the mmap page-size variants and the memset control remain separate.
Fastpath Metadata
Field |
Value |
|---|---|
Suite |
perf |
Name |
mem |
Type |
micro |
Container Image |
registry.gitlab.arm.com/tooling/fastpath/containers/microbench:v2.4 |
Documentation Path |
documentation/user-guide/benchmarkcatalog/perf-mem.rst |
Documentation URL |
https://fastpath.docs.arm.com/user-guide/benchmarkcatalog/perf-mem.html |