cbaines/guix-data-service
1
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Move the gc watcher to start earlier

Browse source 
This means it doesn't use the fibers sleep, don't know if this makes a
difference.
This commit is contained in:
Christopher Baines 2025-06-29 21:14:33 +02:00
parent ae6d7621d1
commit fc6f78ca9a
2 changed files with 31 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

24
guix-data-service/web/server.scm
View file

@ -130,30 +130,6 @@
(setrlimit 'nofile 4096 4096))
#:unwind? #t)
(call-with-new-thread
(lambda ()
(set-thread-name "gc watcher")
(add-hook!
after-gc-hook
(let ((last-gc-time-taken
(assq-ref (gc-stats) 'gc-time-taken)))
(lambda ()
(let* ((gc-time-taken
(assq-ref (gc-stats) 'gc-time-taken))
(time-since-last
(/ (- gc-time-taken
last-gc-time-taken)
internal-time-units-per-second)))
(when (> time-since-last 0.1)
(format (current-error-port)
"after gc (additional time taken: ~f)\n"
time-since-last))
(set! last-gc-time-taken
(assq-ref (gc-stats) 'gc-time-taken))))))
(while #t
(sleep 0.1))))
(let ((finished? (make-condition))
(request-scheduler #f))
(call-with-sigint

32
scripts/guix-data-service.in
View file

@ -26,12 +26,14 @@
(use-modules (srfi srfi-1)
(srfi srfi-37)
(ice-9 match)
(ice-9 format)
(ice-9 atomic)
(ice-9 threads)
(ice-9 textual-ports)
(system repl server)
(system repl repl)
(gcrypt pk-crypto)
((knots thread-pool) #:select (set-thread-name))
(guix pki)
(guix-data-service utils)
(guix-data-service config)
@ -225,7 +227,35 @@
"poll-startup"
all-git-repositories))
(atomic-box-set! startup-completed #t)))))
(atomic-box-set! startup-completed #t)))
(set-thread-name "gc watcher")
(add-hook!
after-gc-hook
(let ((last-gc-time-taken
(assq-ref (gc-stats) 'gc-time-taken)))
(lambda ()
(let* ((stats
(gc-stats))
(gc-time-taken
(assq-ref stats 'gc-time-taken))
(time-since-last
(/ (- gc-time-taken
last-gc-time-taken)
internal-time-units-per-second)))
(when (> time-since-last 0.1)
(format (current-error-port)
"after gc (additional time taken: ~f, times: ~d, heap-allocated-since-gc: ~d, heap size: ~d, heap free: ~d)\n"
time-since-last
(assq-ref stats 'gc-times)
(assq-ref stats 'heap-allocated-since-gc)
(assq-ref stats 'heap-size)
(assq-ref stats 'heap-free-size)))
(set! last-gc-time-taken
(assq-ref (gc-stats) 'gc-time-taken))))))
(while #t
(usleep 100000))))
;; Provide some visual space between the startup output and the
;; server starting