79 lines
3.0 KiB
Racket
79 lines
3.0 KiB
Racket
#lang racket/base
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;; Measurement of presence processing.
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;; Peers observe each other, AND ALSO process the resulting routing events.
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(require racket/match)
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(require prospect)
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(require logbook)
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(provide run)
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(struct presence (id) #:transparent)
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(define presence-proj (compile-projection (advertise (presence (?!)))))
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(define (run #:peer-count [peer-count 100])
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(define routing-update-count 0)
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(define (peer id)
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(spawn (lambda (e count)
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(match e
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[(? patch? p)
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(set! routing-update-count (+ routing-update-count 1))
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(define-values (added-ids removed-ids) (patch-project/set/single p presence-proj))
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;; (pretty-print-patch p)
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;; (pretty-print-patch (patch-project p presence-proj))
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(let* ((count (for/fold [(count count)] [(i added-ids)]
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;; (log-info "Adding ~v to ~v at peer ~v" i count id)
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(+ count i)))
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(count (for/fold [(count count)] [(i removed-ids)]
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;; (log-info "Removing ~v from ~v at peer ~v" i count id)
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(- count i))))
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(transition count '()))]
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[_ #f]))
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0
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(patch-seq (pub (presence id))
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(sub (advertise (presence ?))))))
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(define start-time (current-inexact-milliseconds))
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(run-ground (for/list [(id (in-range peer-count))] (peer id)))
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(define stop-time (current-inexact-milliseconds))
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(define delta (- stop-time start-time))
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(values routing-update-count delta))
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(module+ main
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(define E (standard-logbook-entry (default-logbook #:verbose? #t) "minimart" "sum-all-prospect"))
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(define T (logbook-table E "presence-processing"
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#:column-spec '(number-of-peers
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secs/routing-update
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routing-updates/sec
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secs/peer
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peers/sec
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routing-update-count
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run-duration-ms)))
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;; Warmup
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(let ()
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(run #:peer-count 1)
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(run #:peer-count 10)
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(void))
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;; Real run
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(for ((n
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(list* 1 2 5
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(let loop ((n 10))
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(if (>= n 500)
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'()
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(cons (inexact->exact (round n))
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(loop (* n (sqrt (sqrt 2))))))))
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))
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(collect-garbage)
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(collect-garbage)
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(collect-garbage)
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(define-values (routing-update-count run-duration-ms) (run #:peer-count n))
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(write-logbook-datum! T (list n
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(/ (/ run-duration-ms 1000.0) routing-update-count)
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(/ routing-update-count (/ run-duration-ms 1000.0))
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(/ (/ run-duration-ms 1000.0) n)
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(/ n (/ run-duration-ms 1000.0))
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routing-update-count
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run-duration-ms))))
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