I am working on python/esl based server. We are seeing memory getting increase by ~6.5MB when con = ESLconnection() get called.

We tried to cleanup this object as soon calls gets complete, but somehow we are not successful.

Further looking into esl/src/include/esl.h we found 

modifying these values help in controlling python server memory growth.

Can someone help me in understanding why we have this buffer size of 6.5MB? 

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