KPTI bench

root@apu:~# dmesg |grep isolation
[    0.000000] Kernel/User page tables isolation: enabled
root@apu:~# dd if=/dev/zero of=/dev/null bs=1 count=1M
1048576+0 records in
1048576+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 5.33092 s, 197 kB/s
root@apu:~# reboot
Connection to apu.teknoraver.net closed by remote host.
matteo@raver:~$ ssh root@apu.teknoraver.net
Linux apu 4.14.12-apu #38 SMP Mon Jan 8 21:17:50 CET 2018 x86_64

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Mon Jan  8 22:07:39 2018
root@apu:~# dmesg |grep isolation
root@apu:~# dd if=/dev/zero of=/dev/null bs=1 count=1M
1048576+0 records in
1048576+0 records out
1048576 bytes (1.0 MB, 1.0 MiB) copied, 1.07183 s, 978 kB/s