Poor bihash performance usually is caused by improper number of buckets assigned. Formula which i found to work well for me is dividing target number of entries by 2.5 and then rounding to first higher power-of-2.
I.e. for 1.000.000 entries bucket size according to that formula would be 2^19 (524288). — Damjan > On 13.02.2026., at 16:02, mohammad mahdi nemati haravani via lists.fd.io > <[email protected]> wrote: > > Hi, > > I want to know if there is any source that compares these two maps. Which one > is better for ip-tcp flow key search? > > i test rte_hash_search_bulk and clib_bihash and clib_bihash was losing but > FDio says bi-hash is very fast i even compare bi-hash to other map like flat > maps and bi-hash lose to all of them > my flow key is 16 byte can someone help me with this? > > >
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