migrate criterion benchmarks to PLNK

changelog

• benchmarks
  • commit has been removed in favor of examples/benches/commit.rs
  • linalg has been migrated to examples/benches/ as bench_linalg
  • setup has been migrated to examples/benches/ as bench_setup
• read-atomic-ops command has been moved to scripts/parse.nu module
• scripts/plot/bench_commit.py has been made more general and renamed to scripts/plot/plot.py
• scripts/plot/benches.py has been removed because it's not required anymore => plot.py and multi_bar.py are general enough

benches/README.md

@@ -74,7 +74,7 @@ python scripts/plot/plot.py ...[
         open setup.ndjson
             | update times { each { $in / 1_000_000 } }
             | insert mean {|it| $it.times | math avg}
-            | insert stddev {|it| $it.times | into int | into float | math stddev | into int}
+            | insert stddev {|it| $it.times | into float | math stddev}
             | insert degree { get label | parse "degree {d}" | into record | get d | into int}
             | insert curve {|it| if ($it.name | str starts-with  "ARK") {
                 let c = $it.name | parse "ARK setup on {curve}" | into record | get curve
@@ -108,7 +108,7 @@ python scripts/plot/plot.py ...[
         open commit.ndjson
             | update times { each { $in / 1_000_000 } }
             | insert mean {|it| $it.times | math avg}
-            | insert stddev {|it| $it.times | into int | into float | math stddev | into int}
+            | insert stddev {|it| $it.times | into float | math stddev}
             | update label { parse "degree {d}" | into record | get d | into int }
             | rename --column { label: "x", name: "curve", mean: "measurement", stddev: "error" }
             | group-by curve --to-table