amd64-perfpmcff
amd64-perfpmc
amd64-pmcff
amd64-tsc
amd64-tscasm
arm32-cortex
arm32-1176
arm64-perfpmc
arm64-pmc
arm64-vct
loong64-rdtime
mips64-cc
ppc32-mftb
ppc64-mftb
riscv32-perfrdcycle
riscv32-rdcycle
riscv64-perfrdcycle
riscv64-rdcycle
s390x-stckf
sparc64-rdtick
x86-tsc
x86-tscasm
default-perfevent
default-mach
default-monotonic
default-gettimeofday
