yandrey321 commented on PR #10536:
URL: https://github.com/apache/ozone/pull/10536#issuecomment-4936394608

   > Performance tip from Google:
   > 
   > > If your application creates and discards thousands of buffers per 
second, use heap buffers. If your architecture relies on steady, 
high-throughput network frameworks (like 
[Netty](https://stackoverflow.com/questions/38638411/netty-4-1-iobuffer-v-s-directbuffer-v-s-heapbuffer))
 or file channels, use a reusable pool of direct buffers to get the best of 
both worlds.
   
   @szetszwo the benchmark clearly shows that in Ozone context heap allocation 
provides better throughput. 


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