diff --git a/Tests/Stress/README.md b/Tests/Stress/README.md
new file mode 100644
index 000000000..53f65e324
--- /dev/null
+++ b/Tests/Stress/README.md
@@ -0,0 +1,41 @@
+# SOGo Stress Tests
+
+### Requirements
+
+ apt-get install parallel curl
+
+### Stragegy
+
+- set the concurrency level to the number of sogod workers you have
+- use as many test users that you have sogod workers. For example, if
+   you have 10 sogod works, have 10 test users
+- test users MUST be named 'sogoX' and MUST have a password set to 'sogo'. If you
+  have 3 test users, you should have sogo1, sogo2 and sogo3 as test
+  users. Make sure you delete those users when you are done with
+  stress-testing. Make also sure you delete the associated mailboxes
+  as emails sent during tests will NOT be deleted
+- ensure memcached is running - you can also test without memcache and
+   see the performance impacts on SOGo.
+
+### Running tests
+
+- define your mail domain
+
+export SOGO_MAIL_DOMAIN="example.com"
+
+- define your SOGo server URL. Do NOT put a trailing slash
+
+export SOGO_SERVER_URL="http://localhost/SOGo/dav"
+
+- define the identifier of your main authentication source where your
+  SOGo test users are adefined
+
+export SOGO_AUTHENTICATION_SOURCE_ID="example.com_public"
+
+- define your concurrency limit - a minimum of 3 is required:
+
+export SOGO_CONCURRENCY_LIMIT=3
+
+- define the number of test iterations
+
+export SOGO_TEST_ITERATIONS=100
diff --git a/Tests/Stress/acl.sh b/Tests/Stress/acl.sh
new file mode 100755
index 000000000..24e1c7541
--- /dev/null
+++ b/Tests/Stress/acl.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+
+. common_func.sh || error_out
+
+echo -n "Estimating fork overhead... "
+FORK_OVERHEAD=$(calculate_curl_fork_overhead)
+echo "done!"
+
+#
+# TEST DEFINITION
+#
+test_acl() {
+    for n in $(seq $SOGO_TEST_ITERATIONS); do
+	curl -s -o /dev/null --basic --user sogo1:sogo \
+	     --request PROPFIND \
+	     --header "Depth: 0" \
+	     --header "Content-Type:text/xml" \
+	     --data @- \
+	$SOGO_SERVER_URL/sogo1/Calendar/personal <<EOF
+<?xml version="1.0" encoding="utf-8"?>
+<D:propfind xmlns:D='DAV:'>
+ <D:prop>
+  <D:principal-collection-set/>
+  <D:owner/>
+  <D:current-user-privilege-set/>
+ </D:prop>
+</D:propfind>
+EOF
+    done;
+}
+export -f test_acl
+
+#
+# TEST EXECUTION
+#
+echo "Starting ACL test..."
+START=$(date +%s%N)
+seq $SOGO_CONCURRENCY_LIMIT | parallel -j0 test_acl {}
+END=$(date +%s%N)
+
+#
+# TEST RESULTS
+#
+DIFF=$(echo "scale=2; $(( $END - $START)) / 1000000000" | bc -l)
+TOTAL=$(( $SOGO_CONCURRENCY_LIMIT * $SOGO_TEST_ITERATIONS ))
+DIFF_WITHOUT_FORK=$(echo "scale=2; $DIFF - $FORK_OVERHEAD" | bc -l)
+THROUGHPUT=$(echo "scale=2; $TOTAL / $DIFF_WITHOUT_FORK" | bc -l)
+echo "completed!"
+echo "It took $DIFF seconds to run the test with the fork overhead of $FORK_OVERHEAD seconds."
+echo "The real execution time for the test is $DIFF_WITHOUT_FORK seconds."
+echo "Throughput achieved is $THROUGHPUT requests per second."
diff --git a/Tests/Stress/authentication.sh b/Tests/Stress/authentication.sh
new file mode 100755
index 000000000..beb044163
--- /dev/null
+++ b/Tests/Stress/authentication.sh
@@ -0,0 +1,54 @@
+#!/bin/bash
+
+. common_func.sh || error_out
+
+echo -n "Estimating fork overhead... "
+FORK_OVERHEAD=$(calculate_curl_fork_overhead)
+echo "done!"
+
+#
+# TEST DEFINITION
+#
+test_authentication() {
+    for n in $(seq $SOGO_TEST_ITERATIONS); do
+	curl -s -o /dev/null --basic --user sogo$1:sogo \
+	     --request PROPFIND \
+	     --header "Depth:1" \
+	     --header "Content-Type:text/xml" \
+	     --data @- \
+	$SOGO_SERVER_URL/sogo$1 <<EOF
+<?xml version="1.0" encoding="utf-8"?>
+<propfind xmlns="DAV:">
+  <prop>
+    <getcontentlength xmlns="DAV:"/>
+    <getlastmodified xmlns="DAV:"/>
+    <executable xmlns="http://apache.org/dav/props/"/>
+    <resourcetype xmlns="DAV:"/>
+    <checked-in xmlns="DAV:"/>
+    <checked-out xmlns="DAV:"/>
+  </prop>
+</propfind>
+EOF
+    done;
+}
+export -f test_authentication
+
+#
+# TEST EXECUTION
+#
+echo -n "Starting authentication test... "
+START=$(date +%s%N)
+seq $SOGO_CONCURRENCY_LIMIT | parallel -j0 test_authentication {}
+END=$(date +%s%N)
+
+#
+# TEST RESULTS
+#
+DIFF=$(echo "scale=2; $(( $END - $START)) / 1000000000" | bc -l)
+TOTAL=$(( $SOGO_CONCURRENCY_LIMIT * $SOGO_TEST_ITERATIONS ))
+DIFF_WITHOUT_FORK=$(echo "scale=2; $DIFF - $FORK_OVERHEAD" | bc -l)
+THROUGHPUT=$(echo "scale=2; $TOTAL / $DIFF_WITHOUT_FORK" | bc -l)
+echo "completed!"
+echo "It took $DIFF seconds to run the test with the fork overhead of $FORK_OVERHEAD seconds."
+echo "The real execution time for the test is $DIFF_WITHOUT_FORK seconds."
+echo "Throughput achieved is $THROUGHPUT requests per second."
diff --git a/Tests/Stress/changes.sh b/Tests/Stress/changes.sh
new file mode 100755
index 000000000..e3e4857d3
--- /dev/null
+++ b/Tests/Stress/changes.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+
+echo $SOGO_CONCURRENCY_LIMIT
+echo $SOGO_TEST_ITERATIONS
+echo $SOGO_SERVER_URL
+
+test_changes() {
+    for n in $(seq $SOGO_TEST_ITERATIONS); do
+        ctag=$(date +%s)
+	curl -s -o /dev/null --basic --user sogo1:sogo \
+	     --request REPORT \
+	     --header "Depth:1" \
+	     --header "Content-Type:text/xml" \
+	     --data @- \
+	$SOGO_SERVER_URL/sogo1/Calendar/personal <<EOF
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sync-collection xmlns:D="DAV:">
+ <D:sync-token>$ctag</D:sync-token>
+ <D:limit><D:nresults>10</D:nresults></D:limit>
+ <D:sync-level>1</D:sync-level>
+ <D:prop>
+  <D:getcontenttype />
+  <D:getetag />
+ </D:prop>
+</D:sync-collection>
+EOF
+    done;
+}
+
+export -f test_changes
+
+echo "Starting changes test..."
+START=$(date +%s)
+
+seq $SOGO_CONCURRENCY_LIMIT | parallel -j0 test_changes {}
+
+END=$(date +%s)
+DIFF=$(( $END - $START ))
+echo "Completed!"
+echo "It took $DIFF seconds"
diff --git a/Tests/Stress/common_func.sh b/Tests/Stress/common_func.sh
new file mode 100644
index 000000000..b24b270f1
--- /dev/null
+++ b/Tests/Stress/common_func.sh
@@ -0,0 +1,8 @@
+calculate_curl_fork_overhead() {
+    local c_start=$(date +%s%N);
+    for n in $(seq $(( $SOGO_CONCURRENCY_LIMIT * $SOGO_TEST_ITERATIONS )) ); do
+        curl -s 2>&1 /dev/null
+    done;
+    local c_end=$(date +%s%N);
+    echo "scale=2; $(( $c_end - $c_start )) / 1000000000" | bc -l
+}
diff --git a/Tests/Stress/insert.sh b/Tests/Stress/insert.sh
new file mode 100755
index 000000000..9eab755fc
--- /dev/null
+++ b/Tests/Stress/insert.sh
@@ -0,0 +1,88 @@
+#!/bin/bash
+
+. common_func.sh || error_out
+
+echo -n "Estimating fork overhead... "
+FORK_OVERHEAD=$(calculate_curl_fork_overhead)
+echo "done!"
+
+#
+# TEST DEFINITION
+#
+test_events_insert() {
+    for n in $(seq $SOGO_TEST_ITERATIONS); do
+        start_date=$(/bin/date -d "today +$(($n-1)) hour" "+%Y%m%dT%H%M%S")
+        end_date=$(/bin/date -d "today +$n hour" "+%Y%m%dT%H%M%S")
+        calendar_data=$(cat <<EOF
+BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:-//Inverse//Event Generator//EN\nCALSCALE:GREGORIAN\nBEGIN:VTIMEZONE\nTZID:America/Montreal\nBEGIN:DAYLIGHT\nTZOFFSETFROM:-0500\nTZOFFSETTO:-0400\nDTSTART:20070311T020000\nRRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU\nTZNAME:EDT\nEND:DAYLIGHT\nBEGIN:STANDARD\nTZOFFSETFROM:-0400\nTZOFFSETTO:-0500\DTSTART:20071104T020000\nRRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU\nTZNAME:EST\nEND:STANDARD\nEND:VTIMEZONE\nBEGIN:VEVENT\nSEQUENCE:1\nTRANSP:OPAQUE\nUID:$n\nSUMMARY:Event $n\nDTSTART;TZID=America/Montreal:$start_date\nDTEND;TZID=America/Montreal:$end_date\nCREATED:20170605T144440Z\nDTSTAMP:20170605T144440Z\nEND:VEVENT\nEND:VCALENDAR
+EOF
+)
+	echo -e $calendar_data | curl -s -o /dev/null --basic --user sogo$1:sogo \
+	     --request PUT \
+	     --header "Content-Type: text/calendar" \
+             --data-binary @- \
+	     $SOGO_SERVER_URL/sogo$1/Calendar/personal/$n.ics
+    done;
+}
+
+export -f test_events_insert
+
+#
+# TEST EXECUTION
+#
+echo "Starting events insert test..."
+START=$(date +%s%N)
+seq $SOGO_CONCURRENCY_LIMIT | parallel -j0 test_events_insert {}
+END=$(date +%s%N)
+
+#
+# TEST RESULTS
+#
+DIFF=$(echo "scale=2; $(( $END - $START)) / 1000000000" | bc -l)
+TOTAL=$(( $SOGO_CONCURRENCY_LIMIT * $SOGO_TEST_ITERATIONS ))
+DIFF_WITHOUT_FORK=$(echo "scale=2; $DIFF - $FORK_OVERHEAD" | bc -l)
+THROUGHPUT=$(echo "scale=2; $TOTAL / $DIFF_WITHOUT_FORK" | bc -l)
+echo "completed!"
+echo "It took $DIFF seconds to run the test with the fork overhead of $FORK_OVERHEAD seconds."
+echo "The real execution time for the test is $DIFF_WITHOUT_FORK seconds."
+echo "Throughput achieved is $THROUGHPUT requests per second."
+
+
+#
+# TEST DEFINITION
+#
+test_contacts_insert() {
+    for n in $(seq $SOGO_TEST_ITERATIONS); do
+        card_data=$(cat <<EOF
+BEGIN:VCARD\nUID:$n\nVERSION:3.0\nCLASS:PUBLIC\nPROFILE:VCARD\nN:Doe;John\nFN:John $n Doe\nEMAIL:johndoe$n@example.com\nEND:VCARD
+EOF
+)
+	echo -e $card_data | curl -s -o /dev/null --basic --user sogo$1:sogo \
+	     --request PUT \
+	     --header "Content-Type: text/calendar" \
+             --data-binary @- \
+	     $SOGO_SERVER_URL/sogo$1/Contacts/personal/$n.ics
+    done;
+}
+
+export -f test_contacts_insert
+
+#
+# TEST EXECUTION
+#
+echo "Starting contacts insert test..."
+START=$(date +%s%N)
+seq $SOGO_CONCURRENCY_LIMIT | parallel -j0 test_contacts_insert {}
+END=$(date +%s%N)
+
+#
+# TEST RESULTS
+#
+DIFF=$(echo "scale=2; $(( $END - $START)) / 1000000000" | bc -l)
+TOTAL=$(( $SOGO_CONCURRENCY_LIMIT * $SOGO_TEST_ITERATIONS ))
+DIFF_WITHOUT_FORK=$(echo "scale=2; $DIFF - $FORK_OVERHEAD" | bc -l)
+THROUGHPUT=$(echo "scale=2; $TOTAL / $DIFF_WITHOUT_FORK" | bc -l)
+echo "completed!"
+echo "It took $DIFF seconds to run the test with the fork overhead of $FORK_OVERHEAD seconds."
+echo "The real execution time for the test is $DIFF_WITHOUT_FORK seconds."
+echo "Throughput achieved is $THROUGHPUT requests per second."
diff --git a/Tests/Stress/invitation.sh b/Tests/Stress/invitation.sh
new file mode 100755
index 000000000..bbb4d8ac9
--- /dev/null
+++ b/Tests/Stress/invitation.sh
@@ -0,0 +1,52 @@
+#!/bin/bash
+
+. common_func.sh || error_out
+
+echo -n "Estimating fork overhead... "
+FORK_OVERHEAD=$(calculate_curl_fork_overhead)
+echo "done!"
+
+#
+# TEST DEFINITION
+#
+test_invitation() {
+    for n in $(seq $SOGO_TEST_ITERATIONS); do
+        start_date=$(/bin/date -d "today +$(($n-1)) hour" "+%Y%m%dT%H%M%S")
+        end_date=$(/bin/date -d "today +$n hour" "+%Y%m%dT%H%M%S")=
+        results=($(shuf -i 1-$SOGO_CONCURRENCY_LIMIT -n 3 | grep -v "^$1\$"))
+        attendee1=${results[0]}
+        attendee2=${results[1]}
+        
+        calendar_data=$(cat <<EOF
+BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:-//Inverse//Event Generator//EN\nCALSCALE:GREGORIAN\nBEGIN:VTIMEZONE\nTZID:America/Montreal\nBEGIN:DAYLIGHT\nTZOFFSETFROM:-0500\nTZOFFSETTO:-0400\nDTSTART:20070311T020000\nRRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU\nTZNAME:EDT\nEND:DAYLIGHT\nBEGIN:STANDARD\nTZOFFSETFROM:-0400\nTZOFFSETTO:-0500\DTSTART:20071104T020000\nRRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU\nTZNAME:EST\nEND:STANDARD\nEND:VTIMEZONE\nBEGIN:VEVENT\nSEQUENCE:1\nTRANSP:OPAQUE\nUID:sogo$1-$n\nSUMMARY:Event #$n-$1 invites $attendee1 and $attendee2\nDTSTART;TZID=America/Montreal:$start_date\nDTEND;TZID=America/Montreal:$end_date\nCREATED:20170605T144440Z\nDTSTAMP:20170605T144440Z\nORGANIZER:mailto:sogo$1@$SOGO_MAIL_DOMAIN\nATTENDEE;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;ROLE=REQ-PARTICIPANT:mailto:sogo$attendee1@$SOGO_MAIL_DOMAIN\nATTENDEE;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;ROLE=REQ-PARTICIPANT:mailto:sogo$attendee2@$SOGO_MAIL_DOMAIN\nEND:VEVENT\nEND:VCALENDAR
+EOF
+)
+	echo -e $calendar_data | curl -s -o /dev/null --basic --user sogo$1:sogo \
+	     --request PUT \
+	     --header "Content-Type: text/calendar" \
+             --data-binary @- \
+	     $SOGO_SERVER_URL/sogo$1/Calendar/personal/sogo$1-$n.ics
+    done;
+}
+
+export -f test_invitation
+
+#
+# TEST EXECUTION
+#
+echo "Starting invitation test..."
+START=$(date +%s%N)
+seq $SOGO_CONCURRENCY_LIMIT | parallel -j0 test_invitation {}
+END=$(date +%s%N)
+
+#
+# TEST RESULTS
+#
+DIFF=$(echo "scale=2; $(( $END - $START)) / 1000000000" | bc -l)
+TOTAL=$(( $SOGO_CONCURRENCY_LIMIT * $SOGO_TEST_ITERATIONS ))
+DIFF_WITHOUT_FORK=$(echo "scale=2; $DIFF - $FORK_OVERHEAD" | bc -l)
+THROUGHPUT=$(echo "scale=2; $TOTAL / $DIFF_WITHOUT_FORK" | bc -l)
+echo "completed!"
+echo "It took $DIFF seconds to run the test with the fork overhead of $FORK_OVERHEAD seconds."
+echo "The real execution time for the test is $DIFF_WITHOUT_FORK seconds."
+echo "Throughput achieved is $THROUGHPUT requests per second."
diff --git a/Tests/Stress/search.sh b/Tests/Stress/search.sh
new file mode 100755
index 000000000..422c7706e
--- /dev/null
+++ b/Tests/Stress/search.sh
@@ -0,0 +1,156 @@
+#!/bin/bash
+
+. common_func.sh || error_out
+
+echo -n "Estimating fork overhead... "
+FORK_OVERHEAD=$(calculate_curl_fork_overhead)
+echo "done!"
+
+#
+# TEST DEFINITION
+#
+test_gal_search() {
+    for n in $(seq $SOGO_TEST_ITERATIONS); do
+	curl -s -o /dev/null --basic --user sogo$1:sogo \
+	     --request REPORT \
+	     --header "Depth:1" \
+	     --header "Content-Type:text/xml" \
+	     --data @- \
+	$SOGO_SERVER_URL/sogo$1/Contacts/$SOGO_AUTHENTICATION_SOURCE_ID <<EOF
+<?xml version="1.0" encoding="UTF-8"?>
+<C:addressbook-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:carddav">
+ <D:prop>
+  <D:getetag/>
+ </D:prop>
+ <C:filter>
+  <C:prop-filter name="mail">
+   <C:text-match collation="i;unicasemap" match-type="starts-with">sogo</C:text-match>
+  </C:prop-filter>
+ </C:filter>
+</C:addressbook-query>
+EOF
+    done;
+}
+
+export -f test_gal_search
+
+#
+# TEST EXECUTION
+#
+echo "Starting GAL search test..."
+START=$(date +%s%N)
+seq $SOGO_CONCURRENCY_LIMIT | parallel -j0 test_gal_search {}
+END=$(date +%s%N)
+
+#
+# TEST RESULTS
+#
+DIFF=$(echo "scale=2; $(( $END - $START)) / 1000000000" | bc -l)
+TOTAL=$(( $SOGO_CONCURRENCY_LIMIT * $SOGO_TEST_ITERATIONS ))
+DIFF_WITHOUT_FORK=$(echo "scale=2; $DIFF - $FORK_OVERHEAD" | bc -l)
+THROUGHPUT=$(echo "scale=2; $TOTAL / $DIFF_WITHOUT_FORK" | bc -l)
+echo "completed!"
+echo "It took $DIFF seconds to run the test with the fork overhead of $FORK_OVERHEAD seconds."
+echo "The real execution time for the test is $DIFF_WITHOUT_FORK seconds."
+echo "Throughput achieved is $THROUGHPUT requests per second."
+
+
+#
+# TEST DEFINITION
+#
+test_contacts_search() {
+    for n in $(seq $SOGO_TEST_ITERATIONS); do
+	curl -s -o /dev/null --basic --user sogo$1:sogo \
+	     --request REPORT \
+	     --header "Depth:1" \
+	     --header "Content-Type:text/xml" \
+	     --data @- \
+	$SOGO_SERVER_URL/sogo$1/Contacts/personal/ <<EOF
+<?xml version="1.0" encoding="UTF-8"?>
+<C:addressbook-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:carddav">
+ <D:prop>
+  <D:getetag/>
+ </D:prop>
+ <C:filter>
+  <C:prop-filter name="mail">
+   <C:text-match collation="i;unicasemap" match-type="starts-with">john$n</C:text-match>
+  </C:prop-filter>
+ </C:filter>
+</C:addressbook-query>
+EOF
+    done;
+}
+
+export -f test_contacts_search
+
+#
+# TEST EXECUTION
+#
+echo "Starting contacts search test..."
+START=$(date +%s%N)
+seq $SOGO_CONCURRENCY_LIMIT | parallel -j0 test_contacts_search {}
+END=$(date +%s%N)
+
+#
+# TEST RESULTS
+#
+DIFF=$(echo "scale=2; $(( $END - $START)) / 1000000000" | bc -l)
+TOTAL=$(( $SOGO_CONCURRENCY_LIMIT * $SOGO_TEST_ITERATIONS ))
+DIFF_WITHOUT_FORK=$(echo "scale=2; $DIFF - $FORK_OVERHEAD" | bc -l)
+THROUGHPUT=$(echo "scale=2; $TOTAL / $DIFF_WITHOUT_FORK" | bc -l)
+echo "completed!"
+echo "It took $DIFF seconds to run the test with the fork overhead of $FORK_OVERHEAD seconds."
+echo "The real execution time for the test is $DIFF_WITHOUT_FORK seconds."
+echo "Throughput achieved is $THROUGHPUT requests per second."
+
+
+#
+# TEST DEFINITION
+#
+test_calendar_search() {
+    for n in $(seq $SOGO_TEST_ITERATIONS); do
+	curl -s -o /dev/null --basic --user sogo$1:sogo \
+	     --request REPORT \
+	     --header "Depth:1" \
+	     --header "Content-Type:text/xml" \
+	     --data @- \
+	$SOGO_SERVER_URL/sogo$1/Calendar/personal/ <<EOF
+<?xml version="1.0" encoding="UTF-8"?>
+<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <d:prop>
+        <d:getetag />
+    </d:prop>
+     <c:filter>
+       <c:comp-filter name="VCALENDAR">
+         <c:comp-filter name="VEVENT">
+           <c:time-range start="20000101T000000Z"
+                         end="20200101T000000Z"/>
+         </c:comp-filter>
+       </c:comp-filter>
+     </c:filter>
+</c:calendar-query>
+EOF
+    done;
+}
+
+export -f test_calendar_search
+
+#
+# TEST EXECUTION
+#
+echo "Starting calendar search test..."
+START=$(date +%s%N)
+seq $SOGO_CONCURRENCY_LIMIT | parallel -j0 test_calendar_search {}
+END=$(date +%s%N)
+
+#
+# TEST RESULTS
+#
+DIFF=$(echo "scale=2; $(( $END - $START)) / 1000000000" | bc -l)
+TOTAL=$(( $SOGO_CONCURRENCY_LIMIT * $SOGO_TEST_ITERATIONS ))
+DIFF_WITHOUT_FORK=$(echo "scale=2; $DIFF - $FORK_OVERHEAD" | bc -l)
+THROUGHPUT=$(echo "scale=2; $TOTAL / $DIFF_WITHOUT_FORK" | bc -l)
+echo "completed!"
+echo "It took $DIFF seconds to run the test with the fork overhead of $FORK_OVERHEAD seconds."
+echo "The real execution time for the test is $DIFF_WITHOUT_FORK seconds."
+echo "Throughput achieved is $THROUGHPUT requests per second."
diff --git a/Tests/Stress/teardown.sh b/Tests/Stress/teardown.sh
new file mode 100755
index 000000000..bc976ffac
--- /dev/null
+++ b/Tests/Stress/teardown.sh
@@ -0,0 +1,57 @@
+#!/bin/bash
+
+. common_func.sh || error_out
+
+echo -n "Estimating fork overhead... "
+FORK_OVERHEAD=$(calculate_curl_fork_overhead)
+echo "done!"
+
+#
+# TEST DEFINITION
+#
+test_teardown() {
+    # Cleanup calendar test data
+    for n in $(seq $SOGO_TEST_ITERATIONS); do
+	curl -s -o /dev/null --basic --user sogo$1:sogo \
+	     --request DELETE \
+	     --header "Content-Type: text/xml" \
+	$SOGO_SERVER_URL/sogo$1/Calendar/personal/$n.ics
+    done;
+
+    for n in $(seq $SOGO_TEST_ITERATIONS); do
+	curl -s -o /dev/null --basic --user sogo$1:sogo \
+	     --request DELETE \
+	     --header "Content-Type: text/xml" \
+	$SOGO_SERVER_URL/sogo$1/Calendar/personal/sogo$1-$n.ics
+    done;
+
+    # Cleanup address book test data
+    for n in $(seq $SOGO_TEST_ITERATIONS); do
+	curl -s -o /dev/null --basic --user sogo$1:sogo \
+	     --request DELETE \
+	     --header "Content-Type: text/xml" \
+	$SOGO_SERVER_URL/sogo$1/Contacts/personal/$n.ics
+    done;
+}
+
+export -f test_teardown
+
+#
+# TEST EXECUTION
+#
+echo "Starting teardown test..."
+START=$(date +%s%N)
+seq $SOGO_CONCURRENCY_LIMIT | parallel -j0 test_teardown {}
+END=$(date +%s%N)
+
+#
+# TEST RESULTS
+#
+DIFF=$(echo "scale=2; $(( $END - $START)) / 1000000000" | bc -l)
+TOTAL=$(( $SOGO_CONCURRENCY_LIMIT * $SOGO_TEST_ITERATIONS ))
+DIFF_WITHOUT_FORK=$(echo "scale=2; $DIFF - $FORK_OVERHEAD" | bc -l)
+THROUGHPUT=$(echo "scale=2; $TOTAL / $DIFF_WITHOUT_FORK" | bc -l)
+echo "completed!"
+echo "It took $DIFF seconds to run the test with the fork overhead of $FORK_OVERHEAD seconds."
+echo "The real execution time for the test is $DIFF_WITHOUT_FORK seconds."
+echo "Throughput achieved is $THROUGHPUT requests per second."