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The default timer register pmccntr_el0 usually requires enabling access with e.g. a kernel module (while it is accessible by default on Windows). On Linux, the default for checkasm benchmarks is to use perf (if suitable headers are available) though. On macOS, using cntvct_el0 gives measurements with the same magnitude as mach_absolute_time (which is used currently), but possibly with a little less overhead/noise. Signed-off-by: Martin Storsjö <martin@martin.st> |
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.. | ||
asm.S | ||
cpu.c | ||
cpu.h | ||
float_dsp_init.c | ||
float_dsp_neon.S | ||
Makefile | ||
neontest.h | ||
timer.h | ||
tx_float_init.c | ||
tx_float_neon.S |