perf/syscall

perf bench syscall micro-benchmark measuring system call overhead.

Benchmark Profile

• Type: Micro

• Kernel subsystem: Syscall path

• Coverage: Directly measured

• Topology: Single role: executer

Overview

Measures the raw overhead of invoking a system call using the perf bench syscall basic benchmark. A direct indicator of kernel entry/exit cost, sensitive to spectre mitigations and syscall table changes.

Fastpath Parameters

Name	Description
collection	perf bench collection to run. Set to ‘syscall’.
benchmark	Comma-separated list of syscall sub-benchmarks.

Result Classes

Result class names encode the syscall sub-benchmark, for example ‘syscall-basic’.

Fastpath Metadata

Field	Value
Suite	perf
Name	syscall
Type	micro
Container Image	registry.gitlab.arm.com/tooling/fastpath/containers/microbench:v2.1
Documentation Path	documentation/user-guide/benchmarkcatalog/perf-syscall.rst
Documentation URL	https://fastpath.docs.arm.com/user-guide/benchmarkcatalog/perf-syscall.html