Hi,
We are using bihash where key is 5 tuple of the packet. There are
different type of free list which are maintained and once an entry is
allocated and removed from a bihash that memory still remain with the
bihash for future usage.
The problem we are seeing is consistent growth in the memory of bihash even
after 24 hours of traffic , somehow memory is not coming in a stable
situation.
Any suggestions here are really appreciated.
With 5 tuple and less buckets
Hash table 'abc_v4_flow_hash'
5260666 active elements 131072 active buckets
11 free lists
* [len 2] 50214 free elts*
* [len 4] 58542 free elts*
* [len 8] 69288 free elts*
* [len 16] 74395 free elts*
* [len 32] 77187 free elts*
* [len 64] 53558 free elts*
* [len 128] 1 free elts*
1788 linear search buckets
heap: 25363 chunk(s) allocated
bytes: used 2.33g, scrap 48.84m
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