Resend wrong subject -----Original Message----- From: Trahe, Fiona Sent: Tuesday, December 18, 2018 7:43 AM To: Stephen Hemminger <[email protected]> Cc: [email protected]; [email protected]; Jozwiak, TomaszX <[email protected]>; [email protected]; [email protected]; Daly, Lee <[email protected]>; Luse, Paul E <[email protected]>; Trahe, Fiona <[email protected]> Subject: RE: [dpdk-dev] [PATCH] compressdev: add feature flag to specify where processing is done
Hi Stephen //snip// > > > Subject: Re: [dpdk-dev] [PATCH] compressdev: add feature flag to > > > specify where processing is done > > > > > > On Tue, 20 Nov 2018 01:39:48 +0000 Fiona Trahe > > > <[email protected]> wrote: > > > > > > > A new device feature flag, RTE_COMPDEV_FF_SW_OP_DONE_IN_DEQUEUE > > > > is added. A PMD which processes operations using a software > > > > acceleration engine should set this if the bulk of the > > > > processing is done during the dequeue. It should leave it > > > > cleared if the bulk of the processing is done during the enqueue > > > > (default). > > > > An application may find this useful for tuning. > > > > > > > > Signed-off-by: Fiona Trahe <[email protected]> > > > > > > What application? or is this "if we build it they will come?" > > [Fiona] Our storage team asked for this, so not quite. > > Seems like it might by generically useful, so a bit of the latter > > too :) Would you prefer I removed that line? > > Hopefully, there would be one or more open source projects using the API. > I just did a survey of DPDK an 1/3 of it is never used by any open > source project. Hate to see more dead code and special cases created. > > At least, some example code in examples would help. Something like a > simple in memory compressed storage server using a network API > (SMB?/SSH?/FTP?) [Fiona] There is no compressdev sample app yet. However I've double-checked with the SPDK team, they're currently integrating compressdev and intend to push a patch to SPDK - a storage open-source project - using this flag. Acked-by: Paul Luse <[email protected]>
