>>We need something like tmpfs - running in local memory but support dio.
Maybe with ramdisk, /dev/ram0 ? we can format it with standard filesystem (ext3,ext4,...) so maybe dio works with it ? ----- Mail original ----- De: "Stefan Priebe - Profihost AG" <s.pri...@profihost.ag> À: "Sébastien Han" <han.sebast...@gmail.com> Cc: "Mark Nelson" <mark.nel...@inktank.com>, "Alexandre DERUMIER" <aderum...@odiso.com>, "ceph-devel" <ceph-devel@vger.kernel.org>, "Mark Kampe" <mark.ka...@inktank.com> Envoyé: Jeudi 22 Novembre 2012 14:29:03 Objet: Re: RBD fio Performance concerns Am 22.11.2012 14:22, schrieb Sébastien Han: > And RAMDISK devices are too expensive. > > It would make sense in your infra, but yes they are really expensive. We need something like tmpfs - running in local memory but support dio. Stefan -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html