added utils folder; added several suplamentary modules

1 files changed, 20 insertions, 0 deletions

diff --git a/utils/mem-usage.js b/utils/mem-usage.js
new file mode 100644
index 0000000..766a93e
--- /dev/null
+++ b/utils/mem-usage.js
@@ -0,0 +1,20 @@
+/**
+ * memory usage report utility
+ */
+
+const formatMemoryUsage = (data) => `${Math.round(data / 1024 / 1024 * 100) / 100} MB`;
+
+function report() {
+    let memoryData = process.memoryUsage();
+
+    let memoryUsage = {
+      rss: `${formatMemoryUsage(memoryData.rss)} -> Resident Set Size - total memory allocated for the process execution`,
+      heapTotal: `${formatMemoryUsage(memoryData.heapTotal)} -> total size of the allocated heap`,
+      heapUsed: `${formatMemoryUsage(memoryData.heapUsed)} -> actual memory used during the execution`,
+      external: `${formatMemoryUsage(memoryData.external)} -> V8 external memory`,
+    };
+    
+    console.log(memoryUsage);
+}
+
+module.exports = { report }