Casey Bodley <cbodley@xxxxxxxxxx> writes: > This feature is already present in upstream civetweb (so mimic or > later). You can turn it on with your rgw_frontends configuration, ie. > rgw_frontends = civetweb port=80 tcp_nodelay=1 It is a part of Luminous release as well; as we pulled up the version of civetweb for the first L release. > > There's an rfe to support this in the beast frontend at > http://tracker.ceph.com/issues/34308 > > > On 08/28/2018 12:44 PM, Mark Nelson wrote: >> Excellent news Matt! Is it worth creating a tracker ticket or would >> that be redundant at this point? >> >> Mark >> >> >> On 08/28/2018 11:37 AM, Matt Benjamin wrote: >>> That has come up before. We have a downstream change to disable that, >>> and it's being upstreamed. >>> >>> Matt >>> >>> On Tue, Aug 28, 2018 at 12:29 PM, Mark Nelson >>> <mark.a.nelson@xxxxxxxxx> wrote: >>>> Hi Mark, >>>> >>>> Thanks for testing this! Is there any chance I could get you to >>>> create a >>>> tracker ticket and upload your data here? >>>> >>>> https://tracker.ceph.com/projects/rgw >>>> >>>> I doubt very many people have run performance tests on sub-4k byte >>>> objects. >>>> In bluestore at least, you'll also get hit by the min-alloc size >>>> which means >>>> pretty significant write and space amplification. Out of curiosity, >>>> do you >>>> know of many folks or applications that write out swift/S3 objects this >>>> small? >>>> >>>> Mark >>>> >>>> On 08/28/2018 08:16 AM, Mark Seger wrote: >>>>> I tried to include some data and the mail was rejected because of a >>>>> suspected virus ;( >>>>> >>>>> Anyhow, running getput to talk to RGW via the swift API with varying >>>>> object sizes I discovered GETs of objects with sizes less than 1448 >>>>> bytes >>>>> were taking 40msec longer which exactly corresponds to the delay >>>>> the nagel >>>>> alorgithm inserts under certain buffer alignment conditiions. I >>>>> found this >>>>> exact same problem with swift a number of years ago. >>>>> >>>>> The curious thing is I see in >>>>> http://docs.ceph.com/docs/master/rados/configuration/network-config-ref/?highlight=public%20addr#tcp >>>>> >>>>> it says nagel IS disabled in rados but maybe not RGW? >>>>> >>>>> -mark >>>>> >>> >>> >> > >
