Replaced parking_lot with std::sync
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alice-i-cecile
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Instead of panicking when a lock gets poisoned, we could just bypass poisoning entirely by using |
Didn't know about that! I'll make that change. |
james7132
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Sep 21, 2023
JoJoJet
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Sep 21, 2023
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Seems reasonable. Even if this doesn't provide an immediate benefit over Syd's locks, the fact that it matches performance means I think it would be good to use the standard library's solution for synchronization.
Can we look into making PRs to migrate wgpu and cpal back to std's locks?
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ameknite
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Oct 3, 2023
# Objective - Fixes bevyengine#4610 ## Solution - Replaced all instances of `parking_lot` locks with equivalents from `std::sync`. Acquiring locks within `std::sync` can fail, so `.expect("Lock Poisoned")` statements were added where required. ## Comments In [this comment](bevyengine#4610 (comment)), the lack of deadlock detection was mentioned as a potential reason to not make this change. From what I can gather, Bevy doesn't appear to be using this functionality within the engine. Unless it was expected that a Bevy consumer was expected to enable and use this functionality, it appears to be a feature lost without consequence. Unfortunately, `cpal` and `wgpu` both still rely on `parking_lot`, leaving it in the dependency graph even after this change. From my basic experimentation, this change doesn't appear to have any performance impacts, positive or negative. I tested this using `bevymark` with 50,000 entities and observed 20ms of frame-time before and after the change. More extensive testing with larger/real projects should probably be done.
ameknite
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Oct 3, 2023
# Objective - Fixes bevyengine#4610 ## Solution - Replaced all instances of `parking_lot` locks with equivalents from `std::sync`. Acquiring locks within `std::sync` can fail, so `.expect("Lock Poisoned")` statements were added where required. ## Comments In [this comment](bevyengine#4610 (comment)), the lack of deadlock detection was mentioned as a potential reason to not make this change. From what I can gather, Bevy doesn't appear to be using this functionality within the engine. Unless it was expected that a Bevy consumer was expected to enable and use this functionality, it appears to be a feature lost without consequence. Unfortunately, `cpal` and `wgpu` both still rely on `parking_lot`, leaving it in the dependency graph even after this change. From my basic experimentation, this change doesn't appear to have any performance impacts, positive or negative. I tested this using `bevymark` with 50,000 entities and observed 20ms of frame-time before and after the change. More extensive testing with larger/real projects should probably be done.
ameknite
pushed a commit
to ameknite/bevy
that referenced
this pull request
Oct 3, 2023
# Objective - Fixes bevyengine#4610 ## Solution - Replaced all instances of `parking_lot` locks with equivalents from `std::sync`. Acquiring locks within `std::sync` can fail, so `.expect("Lock Poisoned")` statements were added where required. ## Comments In [this comment](bevyengine#4610 (comment)), the lack of deadlock detection was mentioned as a potential reason to not make this change. From what I can gather, Bevy doesn't appear to be using this functionality within the engine. Unless it was expected that a Bevy consumer was expected to enable and use this functionality, it appears to be a feature lost without consequence. Unfortunately, `cpal` and `wgpu` both still rely on `parking_lot`, leaving it in the dependency graph even after this change. From my basic experimentation, this change doesn't appear to have any performance impacts, positive or negative. I tested this using `bevymark` with 50,000 entities and observed 20ms of frame-time before and after the change. More extensive testing with larger/real projects should probably be done.
regnarock
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Oct 13, 2023
# Objective - Fixes bevyengine#4610 ## Solution - Replaced all instances of `parking_lot` locks with equivalents from `std::sync`. Acquiring locks within `std::sync` can fail, so `.expect("Lock Poisoned")` statements were added where required. ## Comments In [this comment](bevyengine#4610 (comment)), the lack of deadlock detection was mentioned as a potential reason to not make this change. From what I can gather, Bevy doesn't appear to be using this functionality within the engine. Unless it was expected that a Bevy consumer was expected to enable and use this functionality, it appears to be a feature lost without consequence. Unfortunately, `cpal` and `wgpu` both still rely on `parking_lot`, leaving it in the dependency graph even after this change. From my basic experimentation, this change doesn't appear to have any performance impacts, positive or negative. I tested this using `bevymark` with 50,000 entities and observed 20ms of frame-time before and after the change. More extensive testing with larger/real projects should probably be done.
rdrpenguin04
pushed a commit
to rdrpenguin04/bevy
that referenced
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Jan 9, 2024
# Objective - Fixes bevyengine#4610 ## Solution - Replaced all instances of `parking_lot` locks with equivalents from `std::sync`. Acquiring locks within `std::sync` can fail, so `.expect("Lock Poisoned")` statements were added where required. ## Comments In [this comment](bevyengine#4610 (comment)), the lack of deadlock detection was mentioned as a potential reason to not make this change. From what I can gather, Bevy doesn't appear to be using this functionality within the engine. Unless it was expected that a Bevy consumer was expected to enable and use this functionality, it appears to be a feature lost without consequence. Unfortunately, `cpal` and `wgpu` both still rely on `parking_lot`, leaving it in the dependency graph even after this change. From my basic experimentation, this change doesn't appear to have any performance impacts, positive or negative. I tested this using `bevymark` with 50,000 entities and observed 20ms of frame-time before and after the change. More extensive testing with larger/real projects should probably be done.
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Objective
Solution
parking_lotlocks with equivalents fromstd::sync. Acquiring locks withinstd::synccan fail, so.expect("Lock Poisoned")statements were added where required.Comments
In this comment, the lack of deadlock detection was mentioned as a potential reason to not make this change. From what I can gather, Bevy doesn't appear to be using this functionality within the engine. Unless it was expected that a Bevy consumer was expected to enable and use this functionality, it appears to be a feature lost without consequence.
Unfortunately,
cpalandwgpuboth still rely onparking_lot, leaving it in the dependency graph even after this change.From my basic experimentation, this change doesn't appear to have any performance impacts, positive or negative. I tested this using
bevymarkwith 50,000 entities and observed 20ms of frame-time before and after the change. More extensive testing with larger/real projects should probably be done.