Re: [ceph-users] krbd and image striping

2019-02-06 Thread Ilya Dryomov
On Wed, Feb 6, 2019 at 11:09 AM James Dingwall wrote: > > Hi, > > I have been doing some testing with striped rbd images and have a > question about the calculation of the optimal_io_size and > minimum_io_size parameters. My test image was created using a 4M object > size, stripe unit 64k and str

[ceph-users] krbd and image striping

2019-02-06 Thread James Dingwall
Hi, I have been doing some testing with striped rbd images and have a question about the calculation of the optimal_io_size and minimum_io_size parameters. My test image was created using a 4M object size, stripe unit 64k and stripe count 16. In the kernel rbd_init_disk() code: unsigned int obj