On 1/13/20 6:37 PM, vitalif@xxxxxxxxxx wrote: >> Hi, >> >> we're playing around with ceph but are not quite happy with the IOs. >> on average 5000 iops / write >> on average 13000 iops / read >> >> We're expecting more. :( any ideas or is that all we can expect? > > With server SSD you can expect up to ~10000 write / ~25000 read iops per > a single client. > > https://yourcmc.ru/wiki/Ceph_performance > >> money is NOT a problem for this test-bed, any ideas howto gain more >> IOS is greatly appreciated. > > Grab some server NVMes and best possible CPUs :) And then: - Disable all powersaving - Pin the CPUs in C-State 1 That might even increase performance even more. But due to the synchronous nature of Ceph the performance and latency of a single thread will be limited. Wido > _______________________________________________ > 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
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