From 0faed0baeb5a1735ba14afc4cef17612c6935ec3 Mon Sep 17 00:00:00 2001
From: "codspeed-hq[bot]" <117304815+codspeed-hq[bot]@users.noreply.github.com>
Date: Thu, 4 Jun 2026 19:44:08 +0000
Subject: [PATCH 1/2] Add CodSpeed performance benchmarks

---
 .github/workflows/codspeed.yml |  42 +++++
 Cargo.lock                     | 308 +++++++++++++++++++++++++++++++--
 Cargo.toml                     |   5 +
 README.md                      |   1 +
 benches/bench_tar.rs           | 155 +++++++++++++++++
 src/uu/tar/src/tar.rs          |   4 +-
 6 files changed, 495 insertions(+), 20 deletions(-)
 create mode 100644 .github/workflows/codspeed.yml
 create mode 100644 benches/bench_tar.rs

diff --git a/.github/workflows/codspeed.yml b/.github/workflows/codspeed.yml
new file mode 100644
index 0000000..5d03349
--- /dev/null
+++ b/.github/workflows/codspeed.yml
@@ -0,0 +1,42 @@
+name: CodSpeed
+
+on:
+  push:
+    branches:
+      - "main"
+  pull_request:
+  # `workflow_dispatch` allows CodSpeed to trigger backtest
+  # performance analysis in order to generate initial data.
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  id-token: write
+
+env:
+  CARGO_TERM_COLOR: always
+  CARGO_INCREMENTAL: "0"
+
+jobs:
+  codspeed:
+    name: Run benchmarks
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup rust toolchain
+        run: |
+          rustup toolchain install stable --profile minimal
+          rustup default stable
+
+      - name: Install cargo-codspeed
+        run: cargo install cargo-codspeed --locked
+
+      - name: Build the benchmark target(s)
+        run: cargo codspeed build
+
+      - name: Run the benchmarks
+        uses: CodSpeedHQ/action@v4
+        with:
+          mode: simulation
+          run: cargo codspeed run
diff --git a/Cargo.lock b/Cargo.lock
index 0a6769d..306329b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -73,7 +73,7 @@ version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
 dependencies = [
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -84,7 +84,7 @@ checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
 dependencies = [
  "anstyle",
  "once_cell_polyfill",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -93,6 +93,15 @@ version = "1.0.102"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f202df86484c868dbad7eaa557ef785d5c66295e41b460ef922eca0723b842c"
 
+[[package]]
+name = "approx"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cab112f0a86d568ea0e627cc1d6be74a1e9cd55214684db5561995f6dad897c6"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.5.0"
@@ -248,12 +257,88 @@ version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f88a43d011fc4a6876cb7344703e297c71dda42494fee094d5f7c76bf13f746"
 
+[[package]]
+name = "codspeed"
+version = "4.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57af92d1db7f6871b7e82c79cd87f2501db66f36b0eab924be6ea83dd6b2f3f3"
+dependencies = [
+ "anyhow",
+ "cc",
+ "colored",
+ "getrandom 0.2.17",
+ "glob",
+ "libc",
+ "nix",
+ "serde",
+ "serde_json",
+ "statrs",
+]
+
+[[package]]
+name = "codspeed-divan-compat"
+version = "4.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4ea79fd0b1f2128cfac6308369013dba92df47baf4a4f66b57d8158224a361d"
+dependencies = [
+ "clap",
+ "codspeed",
+ "codspeed-divan-compat-macros",
+ "codspeed-divan-compat-walltime",
+ "regex",
+]
+
+[[package]]
+name = "codspeed-divan-compat-macros"
+version = "4.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f70e4ddd6beedefeb48f59d5f85fc21365a66e7976408c3d39f6cbbc4f03e08c"
+dependencies = [
+ "divan-macros",
+ "itertools",
+ "proc-macro-crate",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "codspeed-divan-compat-walltime"
+version = "4.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "490c04f6076be6eacfafb496b8b237f3efbbed93838f2689115cc6f35fcf81c9"
+dependencies = [
+ "cfg-if",
+ "clap",
+ "codspeed",
+ "condtype",
+ "divan-macros",
+ "libc",
+ "regex-lite",
+]
+
 [[package]]
 name = "colorchoice"
 version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1d07550c9036bf2ae0c684c4297d503f838287c83c53686d05370d0e139ae570"
 
+[[package]]
+name = "colored"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "117725a109d387c937a1533ce01b450cbde6b88abceea8473c4d7a85853cda3c"
+dependencies = [
+ "lazy_static",
+ "windows-sys 0.59.0",
+]
+
+[[package]]
+name = "condtype"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf0a07a401f374238ab8e2f11a104d2851bf9ce711ec69804834de8af45c7af"
+
 [[package]]
 name = "const-oid"
 version = "0.10.2"
@@ -415,6 +500,17 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "divan-macros"
+version = "0.1.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8dc51d98e636f5e3b0759a39257458b22619cac7e96d932da6eeb052891bb67c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "dns-lookup"
 version = "3.0.1"
@@ -448,6 +544,12 @@ version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "92773504d58c093f6de2459af4af33faa518c13451eb8f2b5698ed3d36e7c813"
 
+[[package]]
+name = "either"
+version = "1.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91622ff5e7162018101f2fea40d6ebf4a78bbe5a49736a2020649edf9693679e"
+
 [[package]]
 name = "equivalent"
 version = "1.0.2"
@@ -461,7 +563,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -558,6 +660,17 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff2abc00be7fca6ebc474524697ae276ad847ad0a6b3faa4bcb027e9a4614ad0"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.3.4"
@@ -707,6 +820,15 @@ version = "1.70.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"
 
+[[package]]
+name = "itertools"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b192c782037fadd9cfa75548310488aabdbf3d2da73885b31bd0abd03351285"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.18"
@@ -725,7 +847,7 @@ dependencies = [
  "portable-atomic",
  "portable-atomic-util",
  "serde_core",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -774,6 +896,12 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "lazy_static"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
+
 [[package]]
 name = "leb128fmt"
 version = "0.1.0"
@@ -1024,6 +1152,15 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "proc-macro-crate"
+version = "3.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e67ba7e9b2b56446f1d419b1d807906278ffa1a658a8a5d8a39dcb1f5a78614f"
+dependencies = [
+ "toml_edit",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.106"
@@ -1103,6 +1240,12 @@ dependencies = [
  "regex-syntax",
 ]
 
+[[package]]
+name = "regex-lite"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cab834c73d247e67f4fae452806d17d3c7501756d98c8808d7c9c7aa7d18f973"
+
 [[package]]
 name = "regex-syntax"
 version = "0.8.10"
@@ -1140,7 +1283,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -1263,7 +1406,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a766e1110788c36f4fa1c2b71b387a7815aa65f88ce0229841826633d93723e"
 dependencies = [
  "libc",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
+]
+
+[[package]]
+name = "statrs"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a3fe7c28c6512e766b0874335db33c94ad7b8f9054228ae1c2abd47ce7d335e"
+dependencies = [
+ "approx",
+ "num-traits",
 ]
 
 [[package]]
@@ -1302,6 +1455,7 @@ dependencies = [
  "clap",
  "clap_complete",
  "clap_mangen",
+ "codspeed-divan-compat",
  "ctor 1.0.7",
  "phf",
  "phf_codegen",
@@ -1330,7 +1484,7 @@ dependencies = [
  "getrandom 0.4.2",
  "once_cell",
  "rustix",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -1340,7 +1494,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "230a1b821ccbd75b185820a1f1ff7b14d21da1e442e22c0863ea5f08771a8874"
 dependencies = [
  "rustix",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -1420,6 +1574,36 @@ dependencies = [
  "zerovec",
 ]
 
+[[package]]
+name = "toml_datetime"
+version = "1.1.1+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3165f65f62e28e0115a00b2ebdd37eb6f3b641855f9d636d3cd4103767159ad7"
+dependencies = [
+ "serde_core",
+]
+
+[[package]]
+name = "toml_edit"
+version = "0.25.12+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2153edc6955a6c354fad8f5efd38b6a8769bdccf9fe50f8e1329f81b0baa5d7"
+dependencies = [
+ "indexmap",
+ "toml_datetime",
+ "toml_parser",
+ "winnow",
+]
+
+[[package]]
+name = "toml_parser"
+version = "1.1.2+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2abe9b86193656635d2411dc43050282ca48aa31c2451210f4202550afb7526"
+dependencies = [
+ "winnow",
+]
+
 [[package]]
 name = "type-map"
 version = "0.5.1"
@@ -1559,6 +1743,12 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
+name = "wasi"
+version = "0.11.1+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
+
 [[package]]
 name = "wasip2"
 version = "1.0.2+wasi-0.2.9"
@@ -1671,7 +1861,7 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -1733,13 +1923,22 @@ dependencies = [
  "windows-link",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
+dependencies = [
+ "windows-targets 0.52.6",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.60.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f2f500e4d28234f72040990ec9d39e3a6b950f9f22d3dba18416c35882612bcb"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.53.5",
 ]
 
 [[package]]
@@ -1751,6 +1950,22 @@ dependencies = [
  "windows-link",
 ]
 
+[[package]]
+name = "windows-targets"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
+dependencies = [
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
+ "windows_i686_gnullvm 0.52.6",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
+]
+
 [[package]]
 name = "windows-targets"
 version = "0.53.5"
@@ -1758,64 +1973,121 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4945f9f551b88e0d65f3db0bc25c33b8acea4d9e41163edf90dcd0b19f9069f3"
 dependencies = [
  "windows-link",
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_gnullvm",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_aarch64_gnullvm 0.53.1",
+ "windows_aarch64_msvc 0.53.1",
+ "windows_i686_gnu 0.53.1",
+ "windows_i686_gnullvm 0.53.1",
+ "windows_i686_msvc 0.53.1",
+ "windows_x86_64_gnu 0.53.1",
+ "windows_x86_64_gnullvm 0.53.1",
+ "windows_x86_64_msvc 0.53.1",
 ]
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
+
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a9d8416fa8b42f5c947f8482c43e7d89e73a173cead56d044f6a56104a6d1b53"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b9d782e804c2f632e395708e99a94275910eb9100b2114651e04744e9b125006"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "960e6da069d81e09becb0ca57a65220ddff016ff2d6af6a223cf372a506593a3"
 
+[[package]]
+name = "windows_i686_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
+
 [[package]]
 name = "windows_i686_gnullvm"
 version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fa7359d10048f68ab8b09fa71c3daccfb0e9b559aed648a8f95469c27057180c"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e7ac75179f18232fe9c285163565a57ef8d3c89254a30685b57d83a38d326c2"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c3842cdd74a865a8066ab39c8a7a473c0778a3f29370b5fd6b4b9aa7df4a499"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ffa179e2d07eee8ad8f57493436566c7cc30ac536a3379fdf008f47f6bb7ae1"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6bbff5f0aada427a1e5a6da5f1f98158182f26556f345ac9e04d36d0ebed650"
 
+[[package]]
+name = "winnow"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0592e1c9d151f854e6fd382574c3a0855250e1d9b2f99d9281c6e6391af352f1"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "wit-bindgen"
 version = "0.51.0"
diff --git a/Cargo.toml b/Cargo.toml
index a36b0e2..292a6be 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -68,6 +68,7 @@ tar = { optional = true, version = "0.0.1", package = "uu_tar", path = "src/uu/t
 
 [dev-dependencies]
 chrono = { workspace = true }
+divan = { version = "4.7.0", package = "codspeed-divan-compat" }
 pretty_assertions = "1"
 rand = { workspace = true }
 regex = { workspace = true }
@@ -87,6 +88,10 @@ rlimit = "0.11.0"
 phf_codegen = { workspace = true }
 
 
+[[bench]]
+name = "bench_tar"
+harness = false
+
 [[bin]]
 name = "tarapp"
 path = "src/bin/tarapp.rs"
diff --git a/README.md b/README.md
index 323eb7c..bfd8a42 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@
 [![dependency status](https://deps.rs/repo/github/uutils/tar/status.svg)](https://deps.rs/repo/github/uutils/tar)
 
 [![CodeCov](https://codecov.io/gh/uutils/tar/branch/master/graph/badge.svg)](https://codecov.io/gh/uutils/tar)
+[![CodSpeed](https://img.shields.io/endpoint?url=https://codspeed.io/badge.json)](https://app.codspeed.io/uutils/tar?utm_source=badge)
 
 # tar
 
diff --git a/benches/bench_tar.rs b/benches/bench_tar.rs
new file mode 100644
index 0000000..cb11a1c
--- /dev/null
+++ b/benches/bench_tar.rs
@@ -0,0 +1,155 @@
+// Benchmarks for the uutils tar implementation.
+//
+// These benchmarks exercise the core archive operations (create, list, extract)
+// at various scales to track performance over time.
+
+use std::fs::{self, File};
+use std::io::Write;
+use std::path::{Path, PathBuf};
+use tar::operations;
+use tempfile::TempDir;
+
+fn main() {
+    divan::main();
+}
+
+/// Create `count` files of `size` bytes each inside `dir`.
+fn create_sample_files(dir: &Path, count: usize, size: usize) {
+    let content = vec![b'A'; size];
+    for i in 0..count {
+        let path = dir.join(format!("file_{i}.txt"));
+        let mut f = File::create(&path).unwrap();
+        f.write_all(&content).unwrap();
+    }
+}
+
+/// Collect all regular file paths inside `dir` (non-recursive).
+fn collect_files(dir: &Path) -> Vec<PathBuf> {
+    let mut paths: Vec<PathBuf> = fs::read_dir(dir)
+        .unwrap()
+        .filter_map(|e| e.ok())
+        .map(|e| e.path())
+        .filter(|p| p.is_file())
+        .collect();
+    paths.sort();
+    paths
+}
+
+/// Build a tar archive at `archive_path` from all files in `source_dir`.
+fn build_archive(archive_path: &Path, source_dir: &Path) {
+    let files = collect_files(source_dir);
+    let refs: Vec<&Path> = files.iter().map(|p| p.as_path()).collect();
+    operations::create::create_archive(archive_path, &refs, false, false).unwrap();
+}
+
+// ---------------------------------------------------------------------------
+// Create benchmarks
+// ---------------------------------------------------------------------------
+
+#[divan::bench]
+fn create_archive_10_files(bencher: divan::Bencher) {
+    let source = TempDir::new().unwrap();
+    create_sample_files(source.path(), 10, 4_096);
+    let files = collect_files(source.path());
+
+    let out = TempDir::new().unwrap();
+    let archive_path = out.path().join("bench.tar");
+
+    bencher.bench_local(|| {
+        let refs: Vec<&Path> = files.iter().map(|p| p.as_path()).collect();
+        operations::create::create_archive(&archive_path, &refs, false, false).unwrap();
+    });
+}
+
+#[divan::bench]
+fn create_archive_100_files(bencher: divan::Bencher) {
+    let source = TempDir::new().unwrap();
+    create_sample_files(source.path(), 100, 4_096);
+    let files = collect_files(source.path());
+
+    let out = TempDir::new().unwrap();
+    let archive_path = out.path().join("bench.tar");
+
+    bencher.bench_local(|| {
+        let refs: Vec<&Path> = files.iter().map(|p| p.as_path()).collect();
+        operations::create::create_archive(&archive_path, &refs, false, false).unwrap();
+    });
+}
+
+#[divan::bench]
+fn create_archive_directory(bencher: divan::Bencher) {
+    let source = TempDir::new().unwrap();
+    let sub = source.path().join("data");
+    fs::create_dir_all(&sub).unwrap();
+    create_sample_files(&sub, 30, 4_096);
+
+    let out = TempDir::new().unwrap();
+    let archive_path = out.path().join("bench.tar");
+
+    bencher.bench_local(|| {
+        operations::create::create_archive(&archive_path, &[sub.as_path()], false, false).unwrap();
+    });
+}
+
+// ---------------------------------------------------------------------------
+// List benchmarks
+// ---------------------------------------------------------------------------
+
+#[divan::bench]
+fn list_archive_50_files(bencher: divan::Bencher) {
+    let source = TempDir::new().unwrap();
+    create_sample_files(source.path(), 50, 4_096);
+    let archive_dir = TempDir::new().unwrap();
+    let archive_path = archive_dir.path().join("bench.tar");
+    build_archive(&archive_path, source.path());
+
+    bencher.bench_local(|| {
+        operations::list::list_archive(&archive_path, false).unwrap();
+    });
+}
+
+#[divan::bench]
+fn list_archive_verbose_50_files(bencher: divan::Bencher) {
+    let source = TempDir::new().unwrap();
+    create_sample_files(source.path(), 50, 4_096);
+    let archive_dir = TempDir::new().unwrap();
+    let archive_path = archive_dir.path().join("bench.tar");
+    build_archive(&archive_path, source.path());
+
+    bencher.bench_local(|| {
+        operations::list::list_archive(&archive_path, true).unwrap();
+    });
+}
+
+// ---------------------------------------------------------------------------
+// Extract benchmarks
+// ---------------------------------------------------------------------------
+
+#[divan::bench]
+fn extract_archive_20_files(bencher: divan::Bencher) {
+    let source = TempDir::new().unwrap();
+    create_sample_files(source.path(), 20, 4_096);
+    let archive_dir = TempDir::new().unwrap();
+    let archive_path = archive_dir.path().join("bench.tar");
+    build_archive(&archive_path, source.path());
+
+    let original_dir = std::env::current_dir().unwrap();
+    bencher
+        .with_inputs(|| TempDir::new().unwrap())
+        .bench_local_values(|extract_dir| {
+            std::env::set_current_dir(extract_dir.path()).unwrap();
+            operations::extract::extract_archive(&archive_path, false).unwrap();
+        });
+    std::env::set_current_dir(original_dir).unwrap();
+}
+
+// ---------------------------------------------------------------------------
+// CLI parsing benchmark
+// ---------------------------------------------------------------------------
+
+#[divan::bench]
+fn build_cli_command(bencher: divan::Bencher) {
+    bencher.bench_local(|| {
+        divan::black_box(tar::uu_app());
+    });
+}
diff --git a/src/uu/tar/src/tar.rs b/src/uu/tar/src/tar.rs
index 991d4fa..75c1c45 100644
--- a/src/uu/tar/src/tar.rs
+++ b/src/uu/tar/src/tar.rs
@@ -4,9 +4,9 @@
 // file that was distributed with this source code.
 
 pub mod errors;
-mod operations;
+pub mod operations;
 
-use clap::{arg, crate_version, ArgAction, Command};
+use clap::{ArgAction, Command, arg, crate_version};
 use std::path::{Path, PathBuf};
 use uucore::error::UResult;
 use uucore::format_usage;

From c9f88f0fa2f42a3ad4c7d534c44fbbc156cf93cd Mon Sep 17 00:00:00 2001
From: "codspeed-hq[bot]" <117304815+codspeed-hq[bot]@users.noreply.github.com>
Date: Thu, 4 Jun 2026 19:50:28 +0000
Subject: [PATCH 2/2] Fix import ordering to match CI stable toolchain

---
 src/uu/tar/src/tar.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/uu/tar/src/tar.rs b/src/uu/tar/src/tar.rs
index 75c1c45..ff6800f 100644
--- a/src/uu/tar/src/tar.rs
+++ b/src/uu/tar/src/tar.rs
@@ -6,7 +6,7 @@
 pub mod errors;
 pub mod operations;
 
-use clap::{ArgAction, Command, arg, crate_version};
+use clap::{arg, crate_version, ArgAction, Command};
 use std::path::{Path, PathBuf};
 use uucore::error::UResult;
 use uucore::format_usage;