Awesome! Looking forward to using it in the host stack ;-) Florin
> On Jan 25, 2019, at 9:08 AM, Damjan Marion via Lists.Fd.Io > <dmarion=me....@lists.fd.io> wrote: > > > I am very close to the finish line with buffer management rework patch, and > would like to > ask people to take a look before it is merged. > > https://gerrit.fd.io/r/16638 > > It significantly improves performance of buffer alloc free and introduces > numa awareness. > On my skylake platinum 8180 system, with native AVF driver observed > performance improvement is: > > - single core, 2 threads, ipv4 base forwarding test, CPU running at 2.5GHz > (TB off): > > old code - dpdk buffer manager: 20.4 Mpps > old code - old native buffer manager: 19.4 Mpps > new code: 24.9 Mpps > > With DPDK drivers performance stays same as DPDK is maintaining own internal > buffer cache. > So major perf gain should be observed in native code like: vhost-user, memif, > AVF, host stack. > > user facing changes: > to change number of buffers: > old startup.conf: > dpdk { num-mbufs XXXX } > new startup.conf: > buffers { buffers-per-numa XXXX} > > Internal changes: > - free lists are deprecated > - buffer metadata is always initialised. > - first 64-bytes of metadata are initialised on free, so buffer alloc is very > fast > - DPDK mempools are not used anymore, we register custom mempool ops, and > dpdk is taking buffers from VPP > - to support such operation plugin can request external header space - in > case of DPDK it stores rte_mbuf + rte_mempool_objhdr > > I'm still running some tests so possible minor changes are possible, but > nothing major expected. > > -- > Damjan > > -=-=-=-=-=-=-=-=-=-=-=- > Links: You receive all messages sent to this group. > > View/Reply Online (#12016): https://lists.fd.io/g/vpp-dev/message/12016 > Mute This Topic: https://lists.fd.io/mt/29539221/675152 > Group Owner: vpp-dev+ow...@lists.fd.io > Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [fcoras.li...@gmail.com] > -=-=-=-=-=-=-=-=-=-=-=-
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#12018): https://lists.fd.io/g/vpp-dev/message/12018 Mute This Topic: https://lists.fd.io/mt/29539221/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
