Index: Makefile.inc1
===================================================================
--- Makefile.inc1
+++ Makefile.inc1
@@ -1411,6 +1411,7 @@
 	${_+_}cd ${KRNLOBJDIR}/${_kernel}; ${KMAKE} obj
 .endif
 	@echo
+	@date '+%s' > ${KRNLOBJDIR}/.buildkernel_start.${_kernel}
 	@echo "--------------------------------------------------------------"
 	@echo ">>> stage 2.3: build tools"
 	@echo "--------------------------------------------------------------"
@@ -1422,7 +1423,11 @@
 	${_+_}cd ${KRNLOBJDIR}/${_kernel}; ${KMAKE} all -DNO_MODULES_OBJ
 	@echo "--------------------------------------------------------------"
 	@echo ">>> Kernel build for ${_kernel} completed on `LC_ALL=C date`"
+	@seconds=$$(($$(date '+%s') - $$(cat ${KRNLOBJDIR}/.buildkernel_start.${_kernel}))); \
+	  echo -n ">>> Kernel build for ${_kernel} in $$seconds seconds, "; \
+	  echo "ncpu: $$(sysctl -n hw.ncpu)${.MAKE.JOBS:S/^/, make -j/}"
 	@echo "--------------------------------------------------------------"
+	
 .endfor
 
 NO_INSTALLEXTRAKERNELS?=	yes