Index: doc/tcltest.n
==================================================================
--- doc/tcltest.n
+++ doc/tcltest.n
@@ -870,12 +870,12 @@
 .TP
 \fB\-verbose \fIlevel\fR
 .
 Sets the type of output verbosity desired to \fIlevel\fR,
 a list of zero or more of the elements \fBbody\fR, \fBpass\fR,
-\fBskip\fR, \fBstart\fR, \fBerror\fR and \fBline\fR.  Default value
-is
+\fBskip\fR, \fBstart\fR, \fBerror\fR, \fBline\fR, \fBmsec\fR and \fBusec\fR.
+Default value is
 .QW "\fBbody error\fR" .
 Levels are defined as:
 .RS
 .IP "body (\fBb\fR)"
 Display the body of failed tests
@@ -888,10 +888,20 @@
 .IP "error (\fBe\fR)"
 Print errorInfo and errorCode, if they exist, when a test return code
 does not match its expected return code
 .IP "line (\fBl\fR)"
 Print source file line information of failed tests
+.IP "msec (\fBm\fR)"
+Print each test's execution time in milliseconds
+.IP "usec (\fBu\fR)"
+Print each test's execution time in microseconds
+.PP
+Note that the \fBmsec\fR and \fBusec\fR verbosity levels are provided as
+indicative measures only. They do not tackle the problem of repeatibility which
+should be considered in performance tests or benchmarks. To use these verbosity
+levels to thoroughly track performance degradations, consider wrapping your
+test bodies with \fBtime\fR commands.
 .PP
 The single letter abbreviations noted above are also recognized
 so that
 .QW "\fBconfigure \-verbose pt\fR"
 is the same as

Index: library/tcltest/pkgIndex.tcl
==================================================================
--- library/tcltest/pkgIndex.tcl
+++ library/tcltest/pkgIndex.tcl
@@ -7,6 +7,6 @@
 # in response to "package require" commands.  When this
 # script is sourced, the variable $dir must contain the
 # full path name of this file's directory.
 
 if {![package vsatisfies [package provide Tcl] 8.5]} {return}
-package ifneeded tcltest 2.3.8 [list source [file join $dir tcltest.tcl]]
+package ifneeded tcltest 2.3.9 [list source [file join $dir tcltest.tcl]]

Index: library/tcltest/tcltest.tcl
==================================================================
--- library/tcltest/tcltest.tcl
+++ library/tcltest/tcltest.tcl
@@ -20,11 +20,11 @@
 namespace eval tcltest {
 
     # When the version number changes, be sure to update the pkgIndex.tcl file,
     # and the install directory in the Makefiles.  When the minor version
     # changes (new feature) be sure to update the man page as well.
-    variable Version 2.3.8
+    variable Version 2.3.9
 
     # Compatibility support for dumb variables defined in tcltest 1
     # Do not use these.  Call [package provide Tcl] and [info patchlevel]
     # yourself.  You don't need tcltest to wrap it for you.
     variable version [package provide Tcl]
@@ -609,20 +609,31 @@
 	return -code $code $msg
     }
 
     proc AcceptVerbose { level } {
 	set level [AcceptList $level]
+	set levelMap {
+	    l list
+	    p pass
+	    b body 
+	    s skip
+	    t start
+	    e error
+	    l line
+	    m msec
+	    u usec
+	}
+	set levelRegexp "^([join [dict values $levelMap] |])\$"
 	if {[llength $level] == 1} {
-	    if {![regexp {^(pass|body|skip|start|error|line)$} $level]} {
+	    if {![regexp $levelRegexp $level]} {
 		# translate single characters abbreviations to expanded list
-		set level [string map {p pass b body s skip t start e error l line} \
-			[split $level {}]]
+		set level [string map $levelMap [split $level {}]]
 	    }
 	}
 	set valid [list]
 	foreach v $level {
-	    if {[regexp {^(pass|body|skip|start|error|line)$} $v]} {
+	    if {[regexp $levelRegexp $v]} {
 		lappend valid $v
 	    }
 	}
 	return $valid
     }
@@ -1969,10 +1980,15 @@
     }
     set setupFailure [expr {$code != 0}]
 
     # Only run the test body if the setup was successful
     if {!$setupFailure} {
+
+	# Register startup time
+	if {[IsVerbose msec] || [IsVerbose usec]} {
+	    set timeStart [clock microseconds]
+	}
 
 	# Verbose notification of $body start
 	if {[IsVerbose start]} {
 	    puts [outputChannel] "---- $name start"
 	    flush [outputChannel]
@@ -2073,10 +2089,20 @@
 			Problem renaming core file: $msg"
 		}
 	    }
 	}
     }
+
+    if {[IsVerbose msec] || [IsVerbose usec]} {
+	set t [expr {[clock microseconds] - $timeStart}]
+	if {[IsVerbose usec]} {
+	    puts [outputChannel] "++++ $name took $t μs"
+	}
+	if {[IsVerbose msec]} {
+	    puts [outputChannel] "++++ $name took [expr {round($t/1000.)}] ms"
+	}
+    }
 
     # if we didn't experience any failures, then we passed
     variable numTests
     if {!($setupFailure || $cleanupFailure || $coreFailure
 	    || $outputFailure || $errorFailure || $codeFailure

Index: unix/Makefile.in
==================================================================
--- unix/Makefile.in
+++ unix/Makefile.in
@@ -847,12 +847,12 @@
 	    do \
 	    $(INSTALL_DATA) $$i "$(SCRIPT_INSTALL_DIR)"/opt0.4; \
 	    done;
 	@echo "Installing package msgcat 1.6.0 as a Tcl Module";
 	@$(INSTALL_DATA) $(TOP_DIR)/library/msgcat/msgcat.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.5/msgcat-1.6.0.tm;
-	@echo "Installing package tcltest 2.3.8 as a Tcl Module";
-	@$(INSTALL_DATA) $(TOP_DIR)/library/tcltest/tcltest.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.5/tcltest-2.3.8.tm;
+	@echo "Installing package tcltest 2.3.9 as a Tcl Module";
+	@$(INSTALL_DATA) $(TOP_DIR)/library/tcltest/tcltest.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.5/tcltest-2.3.9.tm;
 
 	@echo "Installing package platform 1.0.14 as a Tcl Module";
 	@$(INSTALL_DATA) $(TOP_DIR)/library/platform/platform.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.4/platform-1.0.14.tm;
 	@echo "Installing package platform::shell 1.1.4 as a Tcl Module";
 	@$(INSTALL_DATA) $(TOP_DIR)/library/platform/shell.tcl "$(SCRIPT_INSTALL_DIR)"/../tcl8/8.4/platform/shell-1.1.4.tm;

Index: win/Makefile.in
==================================================================
--- win/Makefile.in
+++ win/Makefile.in
@@ -658,12 +658,12 @@
 	    do \
 	    $(COPY) "$$j" "$(SCRIPT_INSTALL_DIR)/opt0.4"; \
 	    done;
 	@echo "Installing package msgcat 1.6.0 as a Tcl Module";
 	@$(COPY) $(ROOT_DIR)/library/msgcat/msgcat.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.5/msgcat-1.6.0.tm;
-	@echo "Installing package tcltest 2.3.8 as a Tcl Module";
-	@$(COPY) $(ROOT_DIR)/library/tcltest/tcltest.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.5/tcltest-2.3.8.tm;
+	@echo "Installing package tcltest 2.3.9 as a Tcl Module";
+	@$(COPY) $(ROOT_DIR)/library/tcltest/tcltest.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.5/tcltest-2.3.9.tm;
 	@echo "Installing package platform 1.0.14 as a Tcl Module";
 	@$(COPY) $(ROOT_DIR)/library/platform/platform.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.4/platform-1.0.14.tm;
 	@echo "Installing package platform::shell 1.1.4 as a Tcl Module";
 	@$(COPY) $(ROOT_DIR)/library/platform/shell.tcl $(SCRIPT_INSTALL_DIR)/../tcl8/8.4/platform/shell-1.1.4.tm;
 	@echo "Installing encodings";