engines/libblkio: Add option libblkio_force_enable_completion_eventfd
authorAlberto Faria <afaria@redhat.com>
Thu, 1 Dec 2022 22:08:01 +0000 (22:08 +0000)
committerVincent Fu <vincent.fu@samsung.com>
Fri, 2 Dec 2022 21:24:03 +0000 (16:24 -0500)
commitb1bd09b593ddd4043c6217321c7135c0c580edc0
treed9cdad057dd56cd51e88db1b569b24eadd6c2fb0
parentb158577d787beaa6d098be3f180f947f7ad80b22
engines/libblkio: Add option libblkio_force_enable_completion_eventfd

When set, the queue's completion fd is enabled even when it isn't used,
i.e., even if option libblkio_wait_mode is _not_ set to "eventfd".

Depending on the libblkio driver, this can have an impact on
performance. This option allows evaluating that overhead.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Signed-off-by: Vincent Fu <vincent.fu@samsung.com>
HOWTO.rst
engines/libblkio.c
fio.1