Hi. Basic [global]
fsid = 0612cc7e-6239-456c-978b-b4df781fe831 mon initial members = ceph-1,ceph-2,ceph-3 mon host = 10.0.0.15,10.0.0.16,10.0.0.17 osd pool default size = 2 osd pool default pg num = 1024 osd pool default pgp num = 1024 RDMA [global] fsid = 0612cc7e-6239-456c-978b-b4df781fe831 mon initial members = ceph-1,ceph-2,ceph-3 mon host = 10.0.0.15,10.0.0.16,10.0.0.17 osd pool default size = 2 osd pool default pg num = 1024 osd pool default pgp num = 1024 ms_type=async+rdma ms_async_rdma_device_name = mlx4_0 Thanks. Best Regards, Hung-Wei Chiu(邱宏瑋) -- Computer Center, Department of Computer Science National Chiao Tung University 2017-03-24 18:28 GMT+08:00 Haomai Wang <hao...@xsky.com>: > the content of ceph.conf ? > > On Fri, Mar 24, 2017 at 4:32 AM, Hung-Wei Chiu (邱宏瑋) < > hwc...@cs.nctu.edu.tw> wrote: > >> Hi Deepak. >> >> Thansk your reply, >> >> I try to use gperf to profile the ceph-osd with basic mode (without RDMA) >> and you can see the result in the following link. >> http://imgur.com/a/SJgEL >> >> In the gperf result, we can see the whole CPU usage can divided into >> three significant part, (Network: 36%, FileStore: 17% PG related:29%). >> Do you have any idea about this? >> >> Thanks. >> >> >> Best Regards, >> >> Hung-Wei Chiu(邱宏瑋) >> -- >> Computer Center, Department of Computer Science >> National Chiao Tung University >> >> 2017-03-24 14:31 GMT+08:00 Deepak Naidu <dna...@nvidia.com>: >> >>> >>Now, the kernel can decrease the CPU cycle usages for network I/O >>> processing because of RDMA enabled (right?). >>> >>> Yes, kernel should have comparatively free cycles when using RDMA over >>> TCP >>> >>> >>does it means host can provide more CPU for other processing, such as >>> Disk I/O ? >>> >>> This can be subjective, bcos let's say u have an IO process which takes >>> 10 mins over TCP then when using RDMA it might be 3 mins as your CPU cycles >>> are less used by RDMA but if ur application process which provides the RDMA >>> functionality might have processing cycles as well, which might use CPU >>> cycles as well, example client or fuse plugins on the host getting it ? >>> >>> >>> -- >>> Deepak >>> >>> > On Mar 23, 2017, at 11:10 PM, Hung-Wei Chiu (邱宏瑋) < >>> hwc...@cs.nctu.edu.tw> wrote: >>> > >>> > Now, the kernel can decrease the CPU cycle usages for network I/O >>> processing because of RDMA enabled (right?). >>> > does it means host can provide more CPU for other processing, such as >>> Disk I/O ? >>> >>> ------------------------------------------------------------ >>> ----------------------- >>> This email message is for the sole use of the intended recipient(s) and >>> may contain >>> confidential information. Any unauthorized review, use, disclosure or >>> distribution >>> is prohibited. If you are not the intended recipient, please contact >>> the sender by >>> reply email and destroy all copies of the original message. >>> ------------------------------------------------------------ >>> ----------------------- >>> >> >> >
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