Megatest

               ('timeout
                ;;(print "job-thr("job-id")> timeout; pid="pid" before cond1")
                (cond
                 ((number? pid) ;; check if still running
                  ;;(print "job-thr("job-id")> timeout; pid="pid" cond1 pid-is-number branch")
                  (let-values (((pid-or-zero normal-exit exitcode-or-signal)
                                (process-wait pid #t)))


                    ;; can get for large number of parallel threads (~ >= 42)
                    ;;                     Warning (#<thread: anonymous>): in thread: (process-wait) waiting for child process failed - No child processes: 11322
                    
                    ;; 	Call history:
                    
                    ;; 	threaded-queue.scm:56: ##sys#call-with-values	  
                    ;; 	threaded-queue.scm:57: process-wait	  	<--
                    
                    ;; Warning (#<thread: anonymous>): in thread: (process-wait) waiting for child process failed - No child processes: 11323did job 467
                    ;; did job 464
                    
                    ;; Warning (#<thread: anonymous>): in thread: (process-wait) waiting for child process failed - No child processes: 11318
                    
                    ;; 	Call history:
                    
                    ;; 	threaded-queue.scm:56: ##sys#call-with-values	  
                    ;; 	threaded-queue.scm:57: process-wait	  	<--
                    

                    ;;(print "job-thr("job-id")> pid-or-zero="pid-or-zero)
                    (cond
                     ((zero? pid-or-zero)
                      ;;(print "job-thr("job-id")> timeout; pid="pid" cond2 pid-or-zero is zero branch")
                      ;;(print "job-thr("job-id")> zero; loop.")
                      (loop pid))
                     (else

    (q 'drain)
    ;;(q 'event-loop)
    ))

(define (test-submit-bunch2)
  (let* ((q (tjq:new qname: 'test-q sync-job-cap: 42)))
    (for-each (lambda (x)
                (let* ((cmd (conc "echo did job "x)))
                  (print "submit it--"x)
                ;;(let* ((cmd (conc "echo did job "x)))
                (let* ((cmd "/bin/true"))
                  ;;(print "submit it--"x)
                  (q 'submit cmdline: cmd))
               )
             (iota 600))
    ;;(thread-sleep! 10)
    (q 'drain)
    ;;(q 'event-loop)
    ))

;(test-tjq-simple)
;;(test-submit)
;;(test-drain-simple)
(print "top")
(test-submit-bunch2)