Flamegraphing kernel stacks

Makefile

@@ -25,10 +25,10 @@ SPEC2006_SRC=			../spec2006-openbsd
 $(INSTALL_ISO):
 	make -C ../skzbsd-build/ all
 
-ssh-config: opack
+ssh-config: | opack
 	(echo Host $(OPACK_TARGET) && (vagrant ssh-config | sed '1d')) > $@
 
-all: $(INSTALL_ISO) ssh-config
+results/rate.kprofile results/speed.kprofile: $(INSTALL_ISO) ssh-config
 	scp -F ssh-config -q -r src root@$(OPACK_TARGET):/root/run
 	scp -F ssh-config -q -r $(SPEC2006_SRC) root@$(OPACK_TARGET):/var/spec2006
 	vagrant ssh -c "make -C run bootstrap"
@@ -37,6 +37,24 @@ all: $(INSTALL_ISO) ssh-config
 	mkdir -p results
 	scp -F ssh-config -q -r $(OPACK_TARGET):/var/spec2006/result/* results
 
+rate.svg: | results/rate.kprofile
+	stackcollapse-bpftrace.pl $^ | flamegraph.pl \
+		--title "SPECINT2006 RATE - Kernel stacks - $(OPACK_SYS_CPU) threads" \
+		--subtitle "$(shell vagrant ssh -c "sysctl -n kern.version" | head -n1)" \
+		--fonttype "IBM Plex Mono" \
+		--hash \
+		--inverted > $@
+
+speed.svg: | results/speed.kprofile
+	stackcollapse-bpftrace.pl $^ | flamegraph.pl \
+		--title "SPECINT2006 SPEED - Kernel stacks - Single thread" \
+		--subtitle "$(shell vagrant ssh -c "sysctl -n kern.version" | head -n1)" \
+		--fonttype "IBM Plex Mono" \
+		--hash \
+		--inverted > $@
+
+all: rate.svg speed.svg
+
 clean:
 	rm -rf results ssh-config
 	$(MAKE) opack-clean