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cs: limit linklet performance stats to main place

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Avoids crashes due to a lack of synchronization, and makes
Racket CS consistent with Racket.
This commit is contained in:
Matthew Flatt 2019-03-29 10:21:15 -06:00
parent 6c195d521c
commit 793d655770
1 changed files with 4 additions and 1 deletions
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5
racket/src/cs/linklet/performance.ss
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@ -6,6 +6,8 @@
(define current-start-time '())
(define current-gc-start-time '())
(define performance-thread-id (get-thread-id))
;; List keys for passes related to register allocation as recorded by
;; Chez Scheme and reported from `$pass-stats`:
(define register-allocation-passes
@ -37,7 +39,8 @@
(define (measure-performance-region label thunk)
(cond
[measure-performance?
[(and measure-performance?
(eqv? (get-thread-id) performance-thread-id))
(with-interrupts-disabled
(set! current-start-time (cons (current-process-milliseconds) current-start-time))
(set! current-gc-start-time (cons (current-gc-milliseconds) current-gc-start-time)))