Okay I couldn't help myself, waiting for a build to finish.
./parse jsonexamples/twitter.json
Min: 0.00171284 bytes read: 631514 Gigabytes/second: 0.368695
./parse jsonexamples/twitter.json
Min: 0.00171284 bytes read: 631514 Gigabytes/second: 0.368695
Do note that at this stage the benchmark is so preliminary as to be largely meaningless - I haven't really done much more than eyeball the results. But as a preliminary data point, that seems to be a stronger showing clock-for-clock than the eMag one.
I would also like to point out that the LX2160 is also a TDP of 32Watts compared to the 125W TDP of the eMag.
Also building with gcc 8.2 not I needed to change -march=native to -march=armv8-a+crypto
Min: 0.00111424 bytes read: 631514 Gigabytes/second: 0.566768