Hi, I have tried by increasing the value of buckets to 4,997,120 for 10M DB , but I still see VPP RSZ memory is keep on growing even after 24 hours of test. Please provide suggestions
Hash table 'v4_flow_hash' * 10789283 active elements 6244300 active buckets* 7 free lists [len 2] 230496 free elts [len 16] 2 free elts 12223 linear search buckets * heap: 7286 chunk(s) allocated* bytes: used *1.48g*, scrap 400.81k After 12 hours Hash table 'v4_flow_hash'^M * 10882016 active elements 6268886 active buckets* 7 free lists^M [len 2] 917835 free elts [len 4] 52 free elts [len 8] 3 free elts * 15488 linear search buckets* heap: 10779 chunk(s) allocated bytes: used *1.79g,* scrap 802.44k Thanks, Chetan On Thu, Apr 7, 2022 at 5:38 PM <v...@barachs.net> wrote: > Not enough buckets for the number of active key/value pairs. Buckets are > cheap. Start with nBuckets = nActiveSessions / (BIHASH_KVP_PER_PAGE / 2) or > some such and increase the number of buckets as necessary... > > > > HTH... Dave > > > > *From:* vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> *On Behalf Of *chetan > bhasin > *Sent:* Thursday, April 7, 2022 7:28 AM > *To:* vpp-dev <vpp-dev@lists.fd.io> > *Subject:* [vpp-dev] Query Regarding Bihash (VPP 2106) > > > > 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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