alamb commented on PR #6118:
URL: https://github.com/apache/arrow-rs/pull/6118#issuecomment-2254113064
Here is my next run
```
++ critcmp master starts_with-ends_with-improvements
group master
starts_with-ends_with-improvements
----- ------
----------------------------------
ilike_utf8 scalar complex 1.00 301.7±1.10µs
? ?/sec 1.00 301.5±1.04µs ? ?/sec
ilike_utf8 scalar contains 1.00 1554.5±6.20µs
? ?/sec 1.03 1595.8±4.49µs ? ?/sec
ilike_utf8 scalar ends with 1.00 218.5±0.39µs
? ?/sec 1.13 247.1±4.53µs ? ?/sec
ilike_utf8 scalar equals 1.16 248.8±0.40µs
? ?/sec 1.00 214.8±0.66µs ? ?/sec
ilike_utf8 scalar starts with 1.00 279.4±0.36µs
? ?/sec 1.07 298.5±0.46µs ? ?/sec
ilike_utf8_scalar_dyn dictionary[10] string[4]) 1.00 88.1±0.14µs
? ?/sec 1.00 88.2±0.18µs ? ?/sec
like_utf8 scalar complex 1.01 283.4±0.82µs
? ?/sec 1.00 282.0±0.96µs ? ?/sec
like_utf8 scalar contains 1.00 347.6±0.52µs
? ?/sec 1.00 347.4±0.76µs ? ?/sec
like_utf8 scalar ends with 1.41 219.4±0.55µs
? ?/sec 1.00 155.3±2.99µs ? ?/sec
like_utf8 scalar equals 1.00 217.6±0.53µs
? ?/sec 1.00 217.9±0.73µs ? ?/sec
like_utf8 scalar starts with 1.34 232.8±0.29µs
? ?/sec 1.00 173.5±0.30µs ? ?/sec
like_utf8_scalar_dyn dictionary[10] string[4]) 1.00 88.1±0.17µs
? ?/sec 1.00 88.1±0.14µs ? ?/sec
like_utf8view scalar complex 1.00 531.3±2.04ms
? ?/sec 1.00 531.0±2.43ms ? ?/sec
like_utf8view scalar contains 1.00 378.6±0.36ms
? ?/sec 1.01 380.6±1.38ms ? ?/sec
like_utf8view scalar ends with 1.13 59.6±0.24ms
? ?/sec 1.00 52.7±0.23ms ? ?/sec
like_utf8view scalar equals 1.00 37.0±0.47ms
? ?/sec 1.00 36.9±0.09ms ? ?/sec
like_utf8view scalar starts with 1.06 60.0±0.48ms
? ?/sec 1.00 56.8±0.23ms ? ?/sec
nilike_utf8 scalar complex 1.00 301.9±1.19µs
? ?/sec 1.00 300.4±2.48µs ? ?/sec
nilike_utf8 scalar contains 1.00 1551.3±4.82µs
? ?/sec 1.03 1594.3±4.71µs ? ?/sec
nilike_utf8 scalar ends with 1.00 219.7±3.41µs
? ?/sec 1.12 246.3±0.86µs ? ?/sec
nilike_utf8 scalar equals 1.16 248.8±0.53µs
? ?/sec 1.00 214.5±0.33µs ? ?/sec
nilike_utf8 scalar starts with 1.00 279.6±1.02µs
? ?/sec 1.07 298.4±0.46µs ? ?/sec
nlike_utf8 scalar complex 1.01 283.2±1.05µs
? ?/sec 1.00 281.1±1.19µs ? ?/sec
nlike_utf8 scalar contains 1.00 347.5±0.63µs
? ?/sec 1.00 347.2±0.49µs ? ?/sec
nlike_utf8 scalar ends with 1.42 219.7±1.25µs
? ?/sec 1.00 154.8±0.24µs ? ?/sec
nlike_utf8 scalar equals 1.00 217.7±0.45µs
? ?/sec 1.00 217.7±0.47µs ? ?/sec
nlike_utf8 scalar starts with 1.34 233.0±0.85µs
? ?/sec 1.00 173.6±0.48µs ? ?/sec
```
BTW I am running this on a `c2-standard-8` GCP instance
Script
```shell
pushd ~/arrow-rs
#git remote add samuelcolvin https://github.com/samuelcolvin/arrow-rs.git
git fetch -p samuelcolvin
BENCH_COMMAND="cargo bench -p arrow --bench comparison_kernels -F test_utils"
BENCH_FILTER="like"
REPO_NAME="samuelcolvin"
BRANCH_NAME="starts_with-ends_with-improvements"
# remove old test runs
rm -rf target/criterion/
git checkout $BRANCH_NAME
git reset --hard "$REPO_NAME/$BRANCH_NAME"
# Run on test branch
$BENCH_COMMAND -- --save-baseline ${BRANCH_NAME} ${BENCH_FILTER}
# Run on master
MERGE_BASE=$(git merge-base HEAD apache/master)
echo "** Comparing to ${MERGE_BASE}"
git checkout ${MERGE_BASE}
$BENCH_COMMAND -- --save-baseline master ${BENCH_FILTER}
critcmp master ${BRANCH_NAME}
popd
```
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