Index: Jenkinsfile
===================================================================
--- Jenkinsfile	(revision 1781e97cd47e5008bc65f900befe952042b7660e)
+++ Jenkinsfile	(revision 7d84369aa49c95f5c4745d0968fce359de10d2ad)
@@ -161,7 +161,11 @@
 		Tools.BuildStage('Test: full', Settings.RunAllTests) {
 			dir (BuildDir) {
+					jopt = ""
+					if( Settings.Architecture.node == 'x86' ) {
+						jopt = "-j1"
+					}
 					//Run the tests from the tests directory
-					sh """make --no-print-directory -C tests timeouts="--timeout=600 --global-timeout=14400" all-tests debug=yes archiveerrors=${BuildDir}/tests/crashes/full-debug"""
-					sh """make --no-print-directory -C tests timeouts="--timeout=600 --global-timeout=14400" all-tests debug=no  archiveerrors=${BuildDir}/tests/crashes/full-nodebug"""
+					sh """make ${jopt} --no-print-directory -C tests timeouts="--timeout=600 --global-timeout=14400" all-tests debug=yes archiveerrors=${BuildDir}/tests/crashes/full-debug"""
+					sh """make ${jopt} --no-print-directory -C tests timeouts="--timeout=600 --global-timeout=14400" all-tests debug=no  archiveerrors=${BuildDir}/tests/crashes/full-nodebug"""
 			}
 		}