[PATCH v2 0/5] meson: wire up support for benchmarks

Hi,

this small patch series implements support for running our benchmarks in "t/perf" via Meson. The series does not aim to replace "t/perf/run", which is more fully-featured and allows running benchmarks against multiple different trees. Instead, this series only allows running the benchmarks against the current tree. Users are thus expected to continue using "t/perf/run" for more advanced usecases.

Changes in v2:
  - Adapt "aggregate.perl" to use a "/usr/bin/env perl" shebang.
  - Link to v1: https://lore.kernel.org/r/20250331-pks-meson-benchmarks-v1-0-b2ace85616a3@pks.im

Thanks!

Patrick

---
Patrick Steinhardt (5):
      t/perf: fix benchmarks with alternate repo formats
      t/perf: use configured PERL_PATH
      t/perf: fix benchmarks with out-of-tree builds
      meson: wire up benchmarks
      meson: wire up benchmarking options

 meson.build           |  7 +++--
 meson_options.txt     |  6 ++++
 t/meson.build         | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++
 t/perf/aggregate.perl |  2 +-
 t/perf/perf-lib.sh    | 32 ++++++++++++++++++---
 t/perf/run            |  4 +--
 6 files changed, 118 insertions(+), 10 deletions(-)

Range-diff versus v1:

1:  fd734280c1d = 1:  844e8bdf81d t/perf: fix benchmarks with alternate repo formats
2:  89a011eec63 ! 2:  d950c828933 t/perf: use configured PERL_PATH
    @@ Commit message
         location.
     
         Use "PERL_PATH" to execute Perl scripts, which makes them work on more
    -    esoteric systems like NixOS.
    +    esoteric systems like NixOS. Furthermore, adapt the shebang to use
    +    env(1) to execute Perl so that users who have Perl in PATH, but in a
    +    non-standard location can execute the script directly.
     
         Signed-off-by: Patrick Steinhardt <ps@pks.im>
     
    + ## t/perf/aggregate.perl ##
    +@@
    +-#!/usr/bin/perl
    ++#!/usr/bin/env perl
    + 
    + use lib '../../perl/build/lib';
    + use strict;
    +
      ## t/perf/perf-lib.sh ##
     @@ t/perf/perf-lib.sh: test_perf_ () {
      	else
3:  efecbd86cd6 = 3:  dc1adf62a86 t/perf: fix benchmarks with out-of-tree builds
4:  feeaaae3ec1 = 4:  8528a775395 meson: wire up benchmarks
5:  fc594fc3dc5 = 5:  c8a4d0b354e meson: wire up benchmarking options

--- base-commit: 683c54c999c301c2cd6f715c411407c413b1d84e change-id: 20250328-pks-meson-benchmarks-a8fac5f69467