WRLGS-3: optimize dumping of logs

lib/RequestLogger.js

@@ -459,16 +459,16 @@ class RequestLogger {
             fields,
             msg,
         };
-        this.entries.push(logEntry);
+        
-
         if (LogLevel.shouldLog(level, this.dumpThreshold)) {
+            this.entries.push(logEntry);
             this.entries.forEach(entry => {
                 this.doLogIO(entry);
             });
-            this.entries = [];
         } else if (LogLevel.shouldLog(level, this.logLevel)) {
             this.doLogIO(logEntry);
         }
+        this.entries = [];
     }
 
     /**

lib/SimpleLogger.js

@@ -69,8 +69,8 @@ class SimpleLogger {
         logFields.hostname = this.hostname;
         logFields.pid = process.pid;
 
-        this.streams.forEach(s => s.stream
+        const fieldsStringified = safeStringify(logFields);
-            .write(`${safeStringify(logFields)}\n`));
+        this.streams.forEach(s => s.stream.write(`${fieldsStringified}\n`));
     }
 
     info(fields, message) {