diff --git a/src/test/java/com/insight/demo/serialize/ProtobufDataAnalysis.java b/src/test/java/com/insight/demo/serialize/ProtobufDataAnalysis.java
new file mode 100644
index 0000000..d5d7cfc
--- /dev/null
+++ b/src/test/java/com/insight/demo/serialize/ProtobufDataAnalysis.java
@@ -0,0 +1,126 @@
+package com.insight.demo.serialize;
+
+import com.google.protobuf.ByteString;
+import com.insight.demo.serialize.mode.Tot.TotMessage;
+import com.insight.demo.serialize.mode.TotList.TotListMessage;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.lang3.RandomStringUtils;
+import org.apache.commons.lang3.RandomUtils;
+import org.joda.time.DateTime;
+import org.junit.Test;
+import org.xerial.snappy.Snappy;
+
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.File;
+import java.io.IOException;
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public class ProtobufDataAnalysis {
+
+    @Test
+    public void testTotCache() {
+
+        long sTime = DateTime.now().getMillis();
+
+        TotMessage.Builder builder = TotMessage.newBuilder();
+        TotListMessage.Builder builderList = TotListMessage.newBuilder();
+
+
+        for (int i = 0; i < 30000; i++) {
+            // simple fields
+            builder.setPortfolioId(RandomUtils.nextDouble(12, 2000))
+                    .setTradableEntityId(RandomUtils.nextDouble(12, 2000))
+                    .setQuantity(RandomUtils.nextDouble(0, 2000000))
+                    .setTestPrice((RandomUtils.nextDouble(0, 2000000)))
+                    .setTotalMarketValueUSDAmount(builder.getQuantity() * builder.getTestPrice())
+                    .setRuleApplicationTimeCode("BOD")
+                    .setTradeSide("BUY")
+                    .setPositionCode("LONG")
+                    .setHoldingTransactionId(RandomUtils.nextDouble(12, 2000))
+                    .setLastExecutionUSDPrice(RandomUtils.nextDouble(0, 2000000))
+                    .setPortfolioTreatmentCode("TEST-DATA")
+                    .setPortfolioRelationId(RandomUtils.nextDouble(12, 2000))
+                    .setEffectiveTmstmp(LocalDateTime.now().toString())
+                    .setTestType("UPDATE")
+                    .setHoldingsId(RandomUtils.nextLong(10000, 1000000))
+                    .setRequestId(UUID.randomUUID().toString())
+                    .setTradeEventCode("AMEND")
+                    .setTradePrice(RandomUtils.nextDouble(0, 2000000))
+                    .setOriginTradeId(UUID.randomUUID().toString())
+                    .setCurrencyCode("USD")
+                    .setHoldingSourceCode(RandomStringUtils.randomAlphanumeric(6))
+                    .setHoldingViewCode(RandomStringUtils.randomAlphanumeric(12))
+                    .setOriginalContinuousHoldingId(RandomUtils.nextLong(10000, 1000000))
+                    .setPortfolioFactorVersionNumber(RandomUtils.nextLong(10000, 1000000))
+                    .setPortfolioFactorMethodCode(RandomStringUtils.randomAlphanumeric(12))
+                    .setTotalAmortizedBookCostUSDAmount(RandomUtils.nextDouble(0, 2000000))
+                    .setHoldingEffectiveTmstmp(LocalDateTime.now().toString())
+                    .setLatestPrice(false);
+
+
+            // Build Message
+            TotMessage totMessage = builder.build();
+
+            // repeated field
+            builderList.addTotList(totMessage.toByteString());
+        }
+
+        TotListMessage lotListMessage = builderList.build();
+
+//        System.out.println(builderList.toString());
+
+
+        // write the protocol buffers binary to a file
+        try {
+
+            byte[] compressed = Snappy.compress(lotListMessage.toByteArray());
+
+            FileUtils.writeByteArrayToFile(new File("C:\\Users\\yhu\\Documents\\TestData\\tot-msg\\lotListMessage.bin"), lotListMessage.toByteArray());
+
+            FileUtils.writeByteArrayToFile(new File("C:\\Users\\yhu\\Documents\\TestData\\tot-msg\\lotListMessage.bin.snappy"), compressed);
+
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        long eTime = DateTime.now().getMillis();
+
+        System.out.println(">>S>>"+ sTime);
+        System.out.println(">>E>>"+ eTime);
+        System.out.println(">>DIFF >>"+ (eTime - sTime ));
+
+        // send as byte array
+//         byte[] bytes = message.toByteArray();
+
+        try {
+//            System.out.println("Reading from file... ");
+            FileInputStream fileInputStream = new FileInputStream("C:\\Users\\yhu\\Documents\\TestData\\tot-msg\\lotListMessage.bin");
+            TotListMessage messageFromFile = TotListMessage.parseFrom(fileInputStream);
+
+            List<ByteString> messageList = new ArrayList<ByteString>();
+            messageList = messageFromFile.getTotListList();
+
+//            System.out.println("Message Count >>" + messageList.size());
+
+            for (ByteString byteString : messageList) {
+                TotMessage totMessageFromFile = TotMessage.parseFrom(byteString);
+//                System.out.println("setPortfolioId >>" + totMessageFromFile.getPortfolioId());
+            }
+
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+//        }
+
+        }
+
+    }
+}