827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
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827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
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-
-
+
+
+
+
|
#f
(let loop ((hed (car dirs))
(tal (cdr dirs)))
(let ((res (or (and (directory? hed)
(file-write-access? hed)
hed)
(handle-exceptions
exn
#f
exn
(begin
(debug:print-info 0 *default-log-port* "could not create " hed ", this might cause problems down the road.")
#f)
(create-directory hed #t)))))
(if (and (string? res)
(directory? res))
res
(if (null? tal)
#f
(loop (car tal)(cdr tal))))))))
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1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
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1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
|
-
+
+
+
+
+
-
+
|
((< (+ load (/ (random 250) 1000)) ;; add a random factor to keep from getting in a rut
(+ best-load (/ (random 250) 1000)) )
(set! best-load load)
(set! best-host hostname)))))
hosts)
best-host))
(define (common:wait-for-cpuload maxload numcpus waitdelay #!key (count 1000) (msg #f)(remote-host #f))
(define (common:wait-for-cpuload maxload-in numcpus-in waitdelay #!key (count 1000) (msg #f)(remote-host #f))
(let* ((loadavg (common:get-cpu-load remote-host))
(numcpus (if (< 1 numcpus-in) ;; not possible
(common:get-num-cpus remote-host)
numcpus-in))
(maxload (max maxload-in 0.5)) ;; so maxload must be greater than 0.5 for now BUG - FIXME?
(first (car loadavg))
(next (cadr loadavg))
(adjload (* maxload numcpus))
(adjload (* maxload (max 1 numcpus))) ;; possible bug where numcpus (or could be maxload) is zero, crude fallback is to at least use 1
(loadjmp (- first next)))
(cond
((and (> first adjload)
(> count 0))
(debug:print-info 0 *default-log-port* "waiting " waitdelay " seconds due to load " first " exceeding max of " adjload " " (if msg msg ""))
(thread-sleep! waitdelay)
(common:wait-for-cpuload maxload numcpus waitdelay count: (- count 1)))
|