bench: added latency comparison with g3log

bench/latency/compare.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+echo "running spdlog and g3log tests 10 time with ${1:-10} threads each (total 1,000,000 entries).."
+rm -f *.log
+for i in {1..10}
+
+do
+   echo
+   sleep 0.5
+   ./spdlog-latency ${1:-10} 2>/dev/null || exit
+   sleep 0.5
+   ./g3log-latency ${1:-10} 2>/dev/null || exit
+
+done