Alexandre, Based on discussion with them at Ceph day in Tokyo JP, they have their own frozen the Ceph repository. And they've been optimizing codes by their own team to meet their requirements. AFAICT they had not done any do PR. Cheers, Shinobu ----- Original Message ----- From: "Alexandre DERUMIER" <aderumier@xxxxxxxxx> To: "Patrick McGarry" <pmcgarry@xxxxxxxxxx> Cc: "ceph-devel" <ceph-devel@xxxxxxxxxxxxxxx>, "ceph-users" <ceph-users@xxxxxxxx> Sent: Wednesday, April 13, 2016 12:45:31 PM Subject: Re: Ceph Day Sunnyvale Presentations Hi, I was reading this presentation from SK telecom about flash optimisations AFCeph: Ceph Performance Analysis & Improvement on Flash [Slides] http://fr.slideshare.net/Inktank_Ceph/af-ceph-ceph-performance-analysis-and-improvement-on-flash Byung-Su Park, SK Telecom They seem to have made optimisations in ceph code. Is there any patches reference ? (applied to infernalis/jewel ?) They seem also to have done ceph config tuning and system tunning, but no config details is provided :( It could be great to share with the community :) Regards, Alexandre ----- Mail original ----- De: "Patrick McGarry" <pmcgarry@xxxxxxxxxx> À: "ceph-devel" <ceph-devel@xxxxxxxxxxxxxxx>, "ceph-users" <ceph-users@xxxxxxxx> Envoyé: Mercredi 6 Avril 2016 18:18:28 Objet: Ceph Day Sunnyvale Presentations Hey cephers, I have all but one of the presentations from Ceph Day Sunnyvale, so rather than wait for a full hand I went ahead and posted the link to the slides on the event page: http://ceph.com/cephdays/ceph-day-sunnyvale/ The videos probably wont be processed until after next week, but I’ll add those once we get them. Thanks to all of the presenters and attendees that made this another great event. -- Best Regards, Patrick McGarry Director Ceph Community || Red Hat http://ceph.com || http://community.redhat.com @scuttlemonkey || @ceph _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com