Remove RWLock from check watcher. #2898
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@matklad mentioned this might be a good idea. So the general idea is that we don't really need the lock, as we can just clone the check watcher state when creating a snapshot. We can then use `Arc::get_mut` to get mutable access to the state from `WorldState` when needed. Running with this it seems to improve responsiveness a bit while cargo is running, but I have no hard numbers to prove it. In any case, a serialization point less is always better when we're trying to be responsive.
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Didn't magically fix the windows issue ;-( bors r+ |
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2898: Remove RWLock from check watcher. r=matklad a=kiljacken @matklad mentioned this might be a good idea. So the general idea is that we don't really need the lock, as we can just clone the check watcher state when creating a snapshot. We can then use `Arc::get_mut` to get mutable access to the state from `WorldState` when needed. Running with this it seems to improve responsiveness a bit while cargo is running, but I have no hard numbers to prove it. In any case, a serialization point less is always better when we're trying to be responsive. Co-authored-by: Emil Lauridsen <mine809@gmail.com>
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@matklad mentioned this might be a good idea.
So the general idea is that we don't really need the lock, as we can
just clone the check watcher state when creating a snapshot. We can then
use
Arc::get_mutto get mutable access to the state fromWorldStatewhen needed.
Running with this it seems to improve responsiveness a bit while cargo
is running, but I have no hard numbers to prove it. In any case, a
serialization point less is always better when we're trying to be
responsive.