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Sripada Venkata Aditya (SVAQuest)
Tata Consultancy Services Ltd
Technical Architect
Tata Consultancy Services Ltd
AU
SVAQuest Member since 2012 88 posts
Tata Consultancy Services Ltd
Posted: June 28, 2018
Last activity: June 28, 2018
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Evaluate the Heap Size for JVM and JVM count

Hi All,

Please clarify the following queries to evaluate the Heap Size for JVM and JVM count required:

1. How to validate the list of JVM count and heap size required before the start of installation or application?

2. Do we have any specific formula and thumb rule to calculate the total number of JVM based on the below parameters?

  • Total number of service requests
  • Total number of Decision requests
  • Total number of estimated concurrent users
  • Total number of estimated concurrent occasional users (percentage of occasional users that might be concurrent during a peak hour)
  • Estimated clipboard size

3. How to conclude the total heap size based on the number of concurrent users (1000), total heap size and average clipboard size of a user is 5 MB per a day. Any suggestions?

10000 * 5 / 1024 = 4.8 GB and adding a contingency of 2 GB.So. the total heap size that need to be considered could be projected as 8 GB (or) any other points need to considered for future growth and performance.

Regards
SVA Quest.

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