running 12 tests
test plain_atomicbool                   ... bench:          14 ns/iter (+/- 0)
test read_guard_no_contention           ... bench:          30 ns/iter (+/- 1)
test read_guard_read_contention         ... bench:          30 ns/iter (+/- 1)
test read_guard_readwrite_contention_1  ... bench:          96 ns/iter (+/- 6)
test read_guard_readwrite_contention_10 ... bench:          53 ns/iter (+/- 1)
test read_guard_readwrite_contention_20 ... bench:          72 ns/iter (+/- 6)
test read_guard_readwrite_contention_30 ... bench:          89 ns/iter (+/- 9)
test read_guard_readwrite_contention_40 ... bench:          88 ns/iter (+/- 82)
test read_guard_write_contention        ... bench:          58 ns/iter (+/- 46)
test read_guard_writehold_contention    ... bench:          40 ns/iter (+/- 1)
test write_guard_with_contention        ... bench:         499 ns/iter (+/- 15,473)
test write_guard_without_contention     ... bench:         112 ns/iter (+/- 13)

test result: ok. 0 passed; 0 failed; 0 ignored; 12 measured; 0 filtered out; finished in 31.26s
