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cs: faster (current-memory-use 'cumulative)

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A slow `(current-memory-use 'cumulative)` could causes misleading
results in `PLT_EXPANDER_TIMES` output for frequent actions.
This commit is contained in:
Matthew Flatt 2019-04-09 07:45:49 -06:00
parent d61f56c77f
commit 247c985702
1 changed files with 1 additions and 1 deletions
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2
racket/src/cs/rumble/memory.ss
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@ -102,7 +102,7 @@
[(mode) [(mode)
(cond (cond
[(not mode) (bytes-allocated)] [(not mode) (bytes-allocated)]
[(eq? mode 'cumulative) (sstats-bytes (statistics))] [(eq? mode 'cumulative) (+ (bytes-deallocated) (bytes-allocated))]
;; must be a custodian; hook is reposnsible for complaining if not ;; must be a custodian; hook is reposnsible for complaining if not
[else (custodian-memory-use mode (bytes-allocated))])])) [else (custodian-memory-use mode (bytes-allocated))])]))