[jboss-jira] [JBoss JIRA] (WFLY-9835) Performance issues in WildFly11 as my 90% for jmeter run gets increased to 2x for same set of run as it was in Jboss.

[nilesh ratta (JIRA)]

nilesh ratta created WFLY-9835:
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             Summary: Performance issues in WildFly11 as my 90% for jmeter run gets increased to 2x for same set of run as it was in Jboss.
                 Key: WFLY-9835
                 URL: https://issues.jboss.org/browse/WFLY-9835
             Project: WildFly
          Issue Type: Bug
            Reporter: nilesh ratta
            Assignee: Jason Greene
         Attachments: J-img3.png, J_img1.png, J_img2.png, Jboss_GClog.png, W_img1.png, W_img2.png, W_img3.png, WildFly11_GCLog.png

I have upgraded my application from Jboss6 with java 6 to WildFly11 with java 8 in dev environment.


Note :
I am facing some performance issues in WildFly11 as my 90% gets increased for same set of run as it was in Jboss.
*And minor GC gets increased to 7 times as it was in jboss.*
And there is no application level code changes in wildfly11.
*Please find attached files for GC log and Heap dump related inputs.*


Inputs :

JVM parameters : Parallel GC with 4 threads , -Xmx6144m Xmx6144m  -XX:NewRatio=1 -XX:ParallelGCThreads=4 -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=1024m
Parameters are same in Jboss 6 and WildFly11.


Jmeter result overview for 100 users in 15 mnts with  250 sec rampup time.
As all of our app server is on AWS with same configuration.

1. Jboss 6 results :

Label      Count	  Average    90%_line	Min     Max	   Error%    ThroughPut
TOTAL	   48664	  167	     418	        0	   30374       0	           53.80															

2. WildFLy11 results :

Label	   Count	   Average	  90%_line	 Min       Max	    Error%	  ThroughPut
TOTAL	   54775	   287	          887	         0	    14286	     0	          60.672


Note : As my count nd throughput increases but my* 90% is > 2x * for WildFly11.


Kindly find the attached files for Heap dump as follows with following names  in .png format:-

For WildFly 11 :

1. W_img1.png :-    
   WildFly11_DominatorTree :  io.netty.buffer.PoolChunk   ?????             
2. W_img2.png 
   WildFly_Histogram       :  Class Name| Objects | Shallow Heap |  Retained Heap

					 byte[]    |  53,925 |  163,144,832 | >= 163,144,832


3. W_img3.png
	WildFly_Immediate Dominators for byte [] :


For Jboss -6
  
1. J_img1.png :-
    Jboss6_DominatorTree   : as there is no  io.netty.buffer.PoolChunk  .....

2. J_img2.png :-
   Jboss6_Histogram 

3. J_img3.png :
   Jboss6_Immediate Dominators for byte [] :
   

Kindly find GC log images for wildFly 11 and jboss 6 .for 15 mnts load run .

                        Wildfly 11               Jboss 6
				
Total GC                1162		              174

Total GC Time           >21 sec                  6 sec

Total Reclaimed Bytes    3.32 tb                  480 gb








 



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