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Add a stress test profile (#6901)

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# Objective
This adds a custom profile for testing against stress tests. Bevy seemingly gets notably faster with LTO turned on. To more accurately depict production level performance, LTO and other rustc-level optimizations should be enabled when performance testing on stress tests.

Also updated the stress test docs to reflect that users should be using it.
This commit is contained in:
James Liu 2022-12-20 15:59:41 +00:00
parent bd615cbf8c
commit 5b8b7dc08f
2 changed files with 15 additions and 1 deletions
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5
Cargo.toml
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@ -1608,3 +1608,8 @@ inherits = "release"
opt-level = "z"
lto = "fat"
codegen-units = 1
[profile.stress-test]
inherits = "release"
lto = "fat"
panic = "abort"

11
examples/stress_tests/README.md
View file

@ -1,3 +1,12 @@
# Stress tests
These examples are used to stress test Bevy's performance in various ways. These should be run with the --release argument to cargo or equivalent optimization, otherwise they will be very slow.
These examples are used to stress test Bevy's performance in various ways. These
should be run with the "stress-test" profile to accurately represent performance
in production, otherwise they will run in cargo's default "dev" profile which is
very slow.
## Example Command
```bash
cargo run --profile stress-test --example <EXAMPLE>
```