gazagnaire.org
Typed runtime_events probes for OCaml
probe, pid1: prefer Fmt over Printf in bench/test
Printf.printf/sprintf in the probe alloc bench and the pid1 obs test
tripped merlint E205 once their .cmt artifacts were built; switch to
Fmt.pr/Fmt.str (adding fmt to the bench dune).
author
Thomas Gazagnaire
date
(Jun 25, 2026, 4:00 PM -0700)
commit
1e1560df
1e1560dffad8130f6554be7988ea36503ce03cb5
parent
809353eb
809353eb1887e4e7a48322a080f3292cd63d0027
+4
-4
+3
-3
bench/alloc.ml
+3
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bench/alloc.ml
···
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in
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let sp = Probe.span "bench.span" Probe.Fields.unit in
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(* top-level: no parent span, current is the sentinel *)
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-
Printf.printf "emit top-level = %.3f words/op\n"
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Fmt.pr "emit top-level = %.3f words/op@."
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(words_per_op ~warmup:2000 1_000_000 (fun () -> Probe.emit ev 1));
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let handle = Probe.enter sp () in
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-
Printf.printf "emit nested = %.3f words/op\n"
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Fmt.pr "emit nested = %.3f words/op@."
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(words_per_op ~warmup:2000 1_000_000 (fun () -> Probe.emit ev 1));
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Printf.printf "with_span = %.3f words/op\n"
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Fmt.pr "with_span = %.3f words/op@."
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(words_per_op ~warmup:2000 1_000_000 (fun () ->
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Probe.with_span sp () (fun () -> ())));
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Probe.exit handle