fx set terminal.x64 fx run-e2e-tests fidl_microbenchmarks_test
Note that you must have fx set to a product that supports the perf end to end tests. Currently, this is terminal and workstation, but refer to the end to end tests reference page for up to date information.
Individual FIDL benchmarks can be run using the -n flag:
fx run-e2e-test fidl_microbenchmarks_test -- -n "rust_fidl_microbenchmarks"