@@ -976,12 +976,18 @@ function apt_get {

     local sudo="sudo"

     [[ "$(id -u)" = "0" ]] && sudo="env"

+    # time all the apt operations

+    time_start "apt-get"

+

     $xtrace

     $sudo DEBIAN_FRONTEND=noninteractive \

         http_proxy=${http_proxy:-} https_proxy=${https_proxy:-} \

         no_proxy=${no_proxy:-} \

         apt-get --option "Dpkg::Options::=--force-confold" --assume-yes "$@"

+

+    # stop the clock

+    time_stop "apt-get"

 }

 function _parse_package_files {

@@ -2115,6 +2121,70 @@ function test_with_retry {

     fi

 }

+# Timing infrastructure - figure out where large blocks of time are

+# used in DevStack

+#

+# The timing infrastructure for DevStack is about collecting buckets

+# of time that are spend in some subtask. For instance, that might be

+# 'apt', 'pip', 'osc', even database migrations. We do this by a pair

+# of functions: time_start / time_stop.

+#

+# These take a single parameter: $name - which specifies the name of

+# the bucket to be accounted against. time_totals function spits out

+# the results.

+#

+# Resolution is only in whole seconds, so should be used for long

+# running activities.

+

+declare -A TOTAL_TIME

+declare -A START_TIME

+

+# time_start $name

+#

+# starts the clock for a timer by name. Errors if that clock is

+# already started.

+function time_start {

+    local name=$1

+    local start_time=${START_TIME[$name]}

+    if [[ -n "$start_time" ]]; then

+        die $LINENO "Trying to start the clock on $name, but it's already been started"

+    fi

+    START_TIME[$name]=$(date +%s)

+}

+

+# time_stop $name

+#

+# stops the clock for a timer by name, and accumulate that time in the

+# global counter for that name. Errors if that clock had not

+# previously been started.

+function time_stop {

+    local name=$1

+    local start_time=${START_TIME[$name]}

+    if [[ -z "$start_time" ]]; then

+        die $LINENO "Trying to stop the clock on $name, but it was never started"

+    fi

+    local end_time=$(date +%s)

+    local elapsed_time=$(($end_time - $start_time))

+    local total=${TOTAL_TIME[$name]:-0}

+    # reset the clock so we can start it in the future

+    START_TIME[$name]=""

+    TOTAL_TIME[$name]=$(($total + $elapsed_time))

+}

+

+# time_totals

+#

+# prints out total time

+function time_totals {

+    echo

+    echo "========================"

+    echo "DevStack Components Timed"

+    echo "========================"

+    echo

+    for t in ${!TOTAL_TIME[*]}; do

+        local v=${TOTAL_TIME[$t]}

+        echo "$t - $v secs"

+    done

+}

 # Restore xtrace

 $XTRACE

@@ -1366,6 +1366,8 @@ else

     exec 1>&3

 fi

+# Dump out the time totals

+time_totals

 # Using the cloud

 # ===============