> -----Original Message----- > From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of De Lara Guarch, > Pablo > Sent: Tuesday, February 14, 2017 1:28 PM > To: Thomas Monjalon; Hanoch Haim (hhaim) > Cc: dev@dpdk.org; Mcnamara, John; Ido Barnea (ibarnea) > Subject: Re: [dpdk-dev] DPDK 17.02 RC-3 performance degradation of ~10% > > Hi, > > > -----Original Message----- > > From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Thomas > Monjalon > > Sent: Tuesday, February 14, 2017 1:05 PM > > To: Hanoch Haim (hhaim) > > Cc: dev@dpdk.org; Mcnamara, John; Ido Barnea (ibarnea) > > Subject: Re: [dpdk-dev] DPDK 17.02 RC-3 performance degradation of > ~10% > > > > 2017-02-14 12:19, Mcnamara, John: > > > From: Hanoch Haim (hhaim) > > > > We (trex traffic generator project) upgrade DPDK version from 16.07 > to > > > > 17.02arc-3 and we experienced a performance degradation on the > > following > > > > NICS: > > [...] > > > > > > Could you do a git-bisect to identify the change that caused this? > > > > +1 for the bisect. > > Please could you try to isolate the change causing the regression? > > I reproduced the regression for i40e driver (3-4% degradation, not 10%). > The commit that caused it was the following: > 5ea0942129a4 ("net/i40e: add packet type metadata in vector Rx") > > This commit was introduced in 16.11, and not in 17.02. This caused some > performance degradation > in the i40e vector RX, due to the addition of packet type parsing in the > PMD. > > Thanks, > Pablo
Sorry, I was talking about RX and not TX, so this is probably not valid then. Pablo
