On Thu, Sep 01, 2022 at 03:53:57PM -0700, Roman Gushchin wrote:

I'd suggest to run something like iperf on a fast hardware. And maybe some
io_uring stuff too. These are two places which were historically most sensitive
to the (kernel) memory accounting speed.

I'm getting wildly inconsistent results with iperf.

io_uring-echo-server and rust_echo_bench gets me:
Benchmarking: 127.0.0.1:12345
50 clients, running 512 bytes, 60 sec.

Without alloc tagging:	120547 request/sec
With:			116748 request/sec

https://github.com/frevib/io_uring-echo-server
https://github.com/haraldh/rust_echo_bench

How's that look to you? Close enough? :)