Native x86-64 GCC 13.3, -O3; microbenchmarks, not AtomS3R timing.
Shared magnetic input PASS; sizeof(Input)=1888
quiet_white_noise,n=4999,mean_d2=3.034858,exceedances=4
resources,history_bytes=1552,diagnostic_bytes=60,push_ns=24.7,lookup_ns=188.5,checksum=99737.3
resources,observation_bytes=176,rotation_bytes=48,uncertainty_bytes=20,diagnostic_row_bytes=28,align_ns=103.3,diagnostic_with_push_ns=246.9,checksum=3070908.8
magnetic rotation contracts PASS (Eigen allocation disabled)
