On 18/06/2020 10.27, Javier González wrote:
On 18.06.2020 10:04, Matias Bjørling wrote:
On 17/06/2020 19.23, Kanchan Joshi wrote:
This patchset enables issuing zone-append using aio and io-uring
direct-io interface.
For aio, this introduces opcode IOCB_CMD_ZONE_APPEND. Application
uses start LBA
of the zone to issue append. On completion 'res2' field is used to
return
zone-relative offset.
For io-uring, this introduces three opcodes:
IORING_OP_ZONE_APPEND/APPENDV/APPENDV_FIXED.
Since io_uring does not have aio-like res2, cqe->flags are
repurposed to return zone-relative offset
Please provide a pointers to applications that are updated and ready
to take advantage of zone append.
Good point. We are posting a RFC with fio support for append. We wanted
to start the conversation here before.
We can post a fork for improve the reviews in V2.
Christoph's response points that it is not exactly clear how this
matches with the POSIX API.
fio support is great - but I was thinking along the lines of
applications that not only benchmark performance. fio should be part of
the supported applications, but should not be the sole reason the API is
added.
