Reactive vs NonReactive

This code is a part of presentataion Refactor to Reactive With Spring 5 and Project Reactor.

Project

• blocking-tomcat-demo - blocking web application that is based on Tomcat server
• non-blocking-tomcat-demo - nonblocking web application that is based on Tomcat server + Servlet Api 3.1
• non-blocking-netty-demo - nonblocking web application that is based on Netty server
• gatling-tests - Gatling based test suite

Tool-sets

• Spring Framework 5
• Spring WebMVC for blocking
• Spring WebFlux for non-blocking
• Tomcat Server for blocking and non-blocking
• Netty Server for nonblocing

Hardware

Amazon EC2 t2.medium

Throughtput-sets

Blocking Tomcat

Execution Options

java -Xmx2g 
     -Xms1g
     -Dserver.tomcat.accept-count=20000 
     -jar blocking-demo-0.0.1-SNAPSHOT.jar

Results

Throughput	Average Latency (milliseconds)
100	1200
1000	4600
10000	44565

Blocking Tomcat

Execution Options

java -Xmx2g 
     -Xms1g
     -Dserver.tomcat.max-threads=10000 
     -Dserver.tomcat.max-connections=10000 
     -Dserver.tomcat.accept-count=20000 
     -jar blocking-demo-0.0.1-SNAPSHOT.jar

Results

Throughput	Average Latency (milliseconds)
100	1271
1000	1429
10000	OutOfMemoryError / Killed

NonBlocking Tomcat (based on Servlet API 3.1)

Execution Options

java -Xmx2g 
     -Xms1g
     -Dserver.tomcat.accept-count=20000 
     -jar non-blocking-demo-tomcat-0.0.1-SNAPSHOT.jar

Results

Throughput	Average Latency (milliseconds)
100	1203
1000	1407
10000	9661

NonBlocking Netty

Execution Options

java -Xmx2g 
     -Xms1g
     -jar non-blocking-demo-netty-0.0.1-SNAPSHOT.jar

Results

Throughput	Average Latency (milliseconds)
1000	1370
10000	2699
20000	6310