Index: api.scm
==================================================================
--- api.scm
+++ api.scm
@@ -250,11 +250,11 @@
 			     (assert ok "FATAL: database file and run-id not aligned.")))))
 		(ttdat   *server-info*)
 		(server-state (tt-state ttdat))
 		(status  (cond
 			  ;; ((> newcount 600) 'busy)
-			  ((> newcount 300) 'loaded)
+			  ((> newcount 500) 'loaded)
 			  (else 'ok)))
 		(errmsg  (case status
 			   ((busy)   (conc "Server overloaded, "newcount" threads in flight"))
 			   ((loaded) (conc "Server loaded, "newcount" threads in flight"))
 			   (else     #f)))

Index: dbfile.scm
==================================================================
--- dbfile.scm
+++ dbfile.scm
@@ -1141,11 +1141,19 @@
 ;; r/w is a flag to indicate if the db is modified by this query #t = yes, #f = no
 ;;
 (define (dbfile:with-db dbstruct run-id r/w proc params)
   (assert dbstruct "FATAL: db:with-db called with dbstruct "#f)
   (assert (dbr:dbstruct? dbstruct) "FATAL: dbstruct is "dbstruct)
-  (let* ((use-mutex (> *api-process-request-count* 25)) ;; risk of db corruption
+  ;; Testing 2023, March 14th. I went from full time use of the mutext to no use at all and
+  ;; didn't see much change in the frequency of the messages:
+  ;; Warning (#<thread: thread14974>): in thread: (bind!) bad parameter or other API misuse
+  ;; allowing request count to go up to 1000 and other crashes showed up:
+  ;; Warning (#<thread: thread1889>): in thread: (deserialize) unexpected end of input: #<input port "(tcp)">
+  ;;
+  ;; leave it fully on for now, test later if there is a performance issue
+  ;;
+  (let* ((use-mutex #t) ;; (> *api-process-request-count* 25)) ;; risk of db corruption
 	 (have-struct (dbr:dbstruct? dbstruct))
          (dbdat     (if have-struct                ;; this stuff just allows us to call with a db handle directly
 			(db:open-db dbstruct run-id (dbfile:db-init-proc)) ;; (dbfile:get-subdb dbstruct run-id)
 			#f))
 	 (db        (if have-struct                ;; this stuff just allows us to call with a db handle directly