Revert "[scudo] Use getMonotonicTimeFast for tryLock." (#86590)
This reverts commit 36ca9a29025a2f678096e9545fa2ec44e8432592.
We were using the `time` as the seed while choosing a new TSD. To make
the access of TSDs evenly distributed, we require a higher precision in
`time`. Otherwise, many threads may result in having the same random
access pattern on TSDs because they share the same `time` in certain
period. On Linux, CLOCK_MONOTONIC_COARSE usually adopts 4 ms precision.
This is way higher than the average accessing time of TSD (which is
usually less than 1 us). As a result, when multiple threads try to
select a new TSD in a 4 ms interval, they share the same `time` seed and
end up choosing and congesting on the same TSD.
GitOrigin-RevId: f1ac559534788f8dd42191b60dfdf9cc56b39fd4
1 file changed
