# Feedback request: Performance improvements from reducing debug info

**URL:** <https://internals.rust-lang.org/t/feedback-request-performance-improvements-from-reducing-debug-info/21825>\
**Category:** Uncategorized\
**Created:** [November 5, 2024, 4:20pm UTC](https://internals.rust-lang.org/t/feedback-request-performance-improvements-from-reducing-debug-info/21825 "2024-11-05T16:20:29Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![josh](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/josh/32/5934_2.png) [@josh](https://internals.rust-lang.org/u/josh)\
**Post date:** [November 5, 2024, 6:07pm UTC](https://internals.rust-lang.org/t/feedback-request-performance-improvements-from-reducing-debug-info/21825/3 "2024-11-05T18:07:06Z")

</div>

For one of my projects, a clean default `dev` profile gives:

```
Finished `dev` profile [unoptimized + debuginfo] target(s) in 6m 12s

```

A clean `debug = "line-tables-only"` build:

```
Finished `dev` profile [unoptimized + debuginfo] target(s) in 5m 02s

```

With the default profile, after touching `main.rs`/`lib.rs`:

```
Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.59s

```

With `debug = "line-tables-only"`, after touching `main.rs`/`lib.rs`:

```
Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.21s

```

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_[View the full topic](https://internals.rust-lang.org/t/feedback-request-performance-improvements-from-reducing-debug-info/21825)._