At Tue, 24 Jan 2017 18:52:43 -0500, David Storrs wrote:
> 1) How do I determine what a safe maximum number of threads is?
For a typical program, 10k or so is probably safe.
The program below creates 10k threads. On my machine, it allocates
about 200M of memory with a peak memory use of 160MB.
----------------------------------------
#lang racket/base
(define s (make-semaphore))
(define ts
(for/list ([i (in-range 10000)])
(thread
(lambda ()
(semaphore-wait s)
(semaphore-post s)))))
'waiting
(semaphore-post s)
(for ([t (in-list ts)])
(thread-wait t))
'done
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