Drop release-fast profile for simplicity (#10476)

.github/workflows/CICD.yml

@@ -322,13 +322,13 @@ jobs:
         disable_search: true
         flags: makefile,${{ matrix.job.os }}
         fail_ci_if_error: false
-    - name: "`make install PROG_PREFIX=uu- PROFILE=release-fast COMPLETIONS=n MANPAGES=n LOCALES=n`"
+    - name: "`make install PROG_PREFIX=uu- PROFILE=release-small COMPLETIONS=n MANPAGES=n LOCALES=n`"
       shell: bash
       run: |
         set -x
-        DESTDIR=/tmp/ make install PROG_PREFIX=uu- PROFILE=release-fast COMPLETIONS=n MANPAGES=n LOCALES=n
+        DESTDIR=/tmp/ make install PROG_PREFIX=uu- PROFILE=release-small COMPLETIONS=n MANPAGES=n LOCALES=n
         # Check that utils are built with given profile
-        ./target/release-fast/true
+        ./target/release-small/true
         # Check that the progs have prefix
         test -f /tmp/usr/local/bin/uu-tty
         test -f /tmp/usr/local/libexec/uu-coreutils/libstdbuf.*
@@ -501,10 +501,10 @@ jobs:
     - uses: Swatinem/rust-cache@v2
     - name: Run sccache-cache
       uses: mozilla-actions/sccache-action@v0.0.9
-    - name: "`make install PROFILE=release-fast`"
+    - name: "`make install PROFILE=release`"
       shell: bash
       run: |
-        export CARGO_TARGET_DIR=cargo-target RUSTFLAGS="${RUSTFLAGS} -C strip=symbols" PROFILE=release-fast MANPAGES=n COMPLETIONS=n LOCALES=n
+        export CARGO_TARGET_DIR=cargo-target RUSTFLAGS="${RUSTFLAGS} -C strip=symbols" PROFILE=release MANPAGES=n COMPLETIONS=n LOCALES=n
         mkdir -p "${CARGO_TARGET_DIR}" && sudo mount -t tmpfs -o noatime,size=16G tmpfs "${CARGO_TARGET_DIR}"
         make install DESTDIR=target/size-release/
         make install COMPLETIONS=n MULTICALL=y LN="ln -vf" DESTDIR=target/size-multi-release/

Cargo.toml

@@ -605,18 +605,19 @@ name = "uudoc"
 path = "src/bin/uudoc.rs"
 required-features = ["uudoc"]
 
-# The default release profile with some optimizations.
 [profile.release]
 lto = true
 panic = "abort"
-
-[profile.release-fast]
-inherits = "release"
 codegen-units = 1
+# FIXME: https://github.com/uutils/coreutils/issues/10654
+[profile.release.package.uu_expand]
+codegen-units = 16
+[profile.release.package.uu_unexpand]
+codegen-units = 16
 
 # A release-like profile that is as small as possible.
 [profile.release-small]
-inherits = "release-fast"
+inherits = "release"
 opt-level = "z"
 strip = true
 

README.md

@@ -101,7 +101,7 @@ other Rust program:
 cargo build --release
 ```
 
-Replace `--release` with `--profile=release-fast` or `--profile=release-small` to use all optimizations or save binary size.
+Replace `--release` with `--profile=release-small` to optimize binary size.
 
 This command builds the most portable common core set of uutils into a multicall
 (BusyBox-type) binary, named 'coreutils', on most Rust-supported platforms.
@@ -154,10 +154,10 @@ To simply build all available utilities (with debug profile):
 make
 ```
 
-In release-fast mode:
+In release mode:
 
 ```shell
-make PROFILE=release-fast
+make PROFILE=release
 ```
 
 To build all but a few of the available utilities:
@@ -191,18 +191,12 @@ manpages or shell completion to work, use `GNU Make` or see
 
 ### Install with GNU Make
 
-To install all available utilities:
+To install all available utilities (PROFILE=release by default):
 
 ```shell
 make install
 ```
 
-To install all utilities with all possible optimizations:
-
-```shell
-make PROFILE=release-fast install
-```
-
 To install using `sudo` switch `-E` must be used:
 
 ```shell

docs/src/packaging.md

@@ -55,17 +55,10 @@ view the full documentation in the
 We provide three release profiles out of the box, though you may want to tweak
 them:
 
-- `release`: This is the standard Rust release profile, but with link-time
-  optimization enabled. It is a balance between compile time, performance and a
-  reasonable amount of debug info. The main drawback of this profile is that the
-  binary is quite large (roughly 2x the GNU coreutils).
-- `release-fast`: Every setting is tuned for the best performance, at the cost
-  of compile time. This binary is still quite large.
-- `release-small`: Generates the smallest binary possible. This strips _all_
-  debug info from the binary, resulting in less informative backtraces. The performance of
-  this profile is also really good as it is close to the `release-fast` profile,
-  but with all debuginfo stripped.
+- `release`: The profile with all performance optimization enabled.
+- `release-small`: Optimize binary size.
 
+They include panic abort which removes stack traces on old rust [https://blog.rust-lang.org/2025/12/11/Rust-1.92.0/].
 For the precise definition of these profiles, you can look at the root
 [`Cargo.toml`](https://github.com/uutils/coreutils/blob/main/Cargo.toml).