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(debug:print 0 *default-log-port* " You do not own megatest.db in this area. Cannot proceed with megatest version migration.")
(exit 1))
(read-only
(debug:print 0 *default-log-port* " You have read-only access to this area. Cannot proceed with megatest version migration.")
(exit 1))
(else
(debug:print 0 *default-log-port* " to switch versions you can run: \"megatest -cleanup-db\"")
(exit 1)))))
(begin
(debug:print 0 *default-log-port* "ERROR: cannot migrate version unless on homehost. Exiting.")
(exit 1))))
;;======================================================================
;; S P A R S E A R R A Y S
;;======================================================================
(define (make-sparse-array)
(let ((a (make-sparse-vector)))
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(debug:print 0 *default-log-port* " You do not own megatest.db in this area. Cannot proceed with megatest version migration.")
(exit 1))
(read-only
(debug:print 0 *default-log-port* " You have read-only access to this area. Cannot proceed with megatest version migration.")
(exit 1))
(else
(debug:print 0 *default-log-port* " to switch versions you can run: \"megatest -cleanup-db\"")
(exit 1)))))))
;; (begin
;; (debug:print 0 *default-log-port* "ERROR: cannot migrate version unless on homehost. Exiting.")
;; (exit 1))))
;;======================================================================
;; S P A R S E A R R A Y S
;;======================================================================
(define (make-sparse-array)
(let ((a (make-sparse-vector)))
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((< (+ 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))
(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)))
((and (> loadjmp numcpus)
(> count 0))
(debug:print-info 0 *default-log-port* "waiting " waitdelay " seconds due to load jump " loadjmp " > numcpus " numcpus (if msg msg ""))
(thread-sleep! waitdelay)
(common:wait-for-cpuload maxload numcpus waitdelay count: (- count 1))))))
(define (common:get-num-cpus remote-host)
(let ((proc (lambda ()
(let loop ((numcpu 0)
(inl (read-line)))
(if (eof-object? inl)
numcpu
(loop (if (string-match "^processor\\s+:\\s+\\d+$" inl)
(+ numcpu 1)
numcpu)
(read-line)))))))
(if remote-host
(with-input-from-pipe
(conc "ssh " remote-host " cat /proc/cpuinfo")
proc)
(with-input-from-file "/proc/cpuinfo" proc))))
;; wait for normalized cpu load to drop below maxload
;;
(define (common:wait-for-normalized-load maxload #!key (msg #f)(remote-host #f))
(let ((num-cpus (common:get-num-cpus remote-host)))
(common:wait-for-cpuload maxload num-cpus 15 msg: msg)))
(define (get-uname . params)
(let* ((uname-res (process:cmd-run->list (conc "uname " (if (null? params) "-a" (car params)))))
(uname #f))
(if (null? (car uname-res))
"unknown"
(caar uname-res))))
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((< (+ 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))
(let* ((loadavg (common:get-cpu-load remote-host))
(first (car loadavg))
(next (cadr loadavg))
(adjload (* maxload numcpus))
(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)))
((and (> loadjmp numcpus)
(> count 0))
(debug:print-info 0 *default-log-port* "waiting " waitdelay " seconds due to load jump " loadjmp " > numcpus " numcpus (if msg msg ""))
(thread-sleep! waitdelay)
(common:wait-for-cpuload maxload numcpus waitdelay count: (- count 1))))))
(define (common:wait-for-homehost-load maxload msg)
(let* ((hh-dat (if (common:on-homehost?) ;; if we are on the homehost then pass in #f so the calls are local.
#f
(common:get-homehost)))
(hh (if hh-dat (car hh-dat) #f))
(numcpus (common:get-num-cpus hh)))
(common:wait-for-normalized-load maxload msg: msg remote-host: hh)))
(define (common:get-num-cpus remote-host)
(let ((proc (lambda ()
(let loop ((numcpu 0)
(inl (read-line)))
(if (eof-object? inl)
numcpu
(loop (if (string-match "^processor\\s+:\\s+\\d+$" inl)
(+ numcpu 1)
numcpu)
(read-line)))))))
(if remote-host
(with-input-from-pipe
(conc "ssh " remote-host " cat /proc/cpuinfo")
proc)
(with-input-from-file "/proc/cpuinfo" proc))))
;; wait for normalized cpu load to drop below maxload
;;
(define (common:wait-for-normalized-load maxload #!key (msg #f)(remote-host #f))
(let ((num-cpus (common:get-num-cpus remote-host)))
(common:wait-for-cpuload maxload num-cpus 15 msg: msg remote-host: remote-host)))
(define (get-uname . params)
(let* ((uname-res (process:cmd-run->list (conc "uname " (if (null? params) "-a" (car params)))))
(uname #f))
(if (null? (car uname-res))
"unknown"
(caar uname-res))))
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