add benchmark/test tool

.gitignore

@@ -1,4 +1,5 @@
 /lmd
+/lb
 lmd.ini
 lmd.log
 *.swp

.golangci.yml

@@ -147,3 +147,6 @@ issues:
         - gomnd
         - lll
         - musttag
+    - path: lb\.go
+      linters:
+        - lll

Makefile

@@ -201,7 +201,7 @@ golangci: tools
 	# golangci combines a few static code analyzer
 	# See https://github.com/golangci/golangci-lint
 	#
-	@set -e; for dir in $$(ls -1d pkg/* cmd); do \
+	@set -e; for dir in $$(ls -1d pkg/* cmd buildtools); do \
 		echo $$dir; \
 		echo "  - GOOS=linux"; \
 		( cd $$dir && GOOS=linux golangci-lint run --timeout=5m ./... ); \
@@ -229,6 +229,10 @@ zip: clean
 		ls -la lmd-$$FILE.gz; \
 		echo "lmd-$$FILE.gz created";
 
+lb: vendor buildtools/lb.go
+	$(GO) build $(BUILD_FLAGS) -o ./lb ./buildtools/lb.go
+
+
 # just skip unknown make targets
 .DEFAULT:
 	@if [[ "$(MAKECMDGOALS)" =~ ^testf ]]; then \