Anatol Belski 2359003001 block: raw: Handle O_DIRECT in the raw async workers ...

The raw sync, io_uring and AIO workers now own an AlignedFile and use
it for the O_DIRECT alignment value and for the unaligned fallback.
Aligned operations keep the fast preadv and pwritev iovec path straight
to the kernel. When the offset or an iovec base or length is not a
multiple of the probed alignment, the worker gathers the iovecs into
one contiguous host buffer and runs a synchronous RMW through
AlignedFile, then scatters the result back into guest memory.

RawDisk constructs the AlignedFile from the disk file and the direct
flag and passes it into each worker, so alignment is probed once at
open time. The fixed VHD workers are threaded through the same
AlignedFile based constructors using a non-direct AlignedFile to
preserve current behavior.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>

2026-06-20 11:46:17 +00:00

..

main.rs

performance-metrics: trim qualified paths

2026-06-17 17:28:07 +00:00

micro_bench_block.rs

block: raw: Handle O_DIRECT in the raw async workers

2026-06-20 11:46:17 +00:00

performance_tests.rs

performance-metrics: Detect boot via the cloud-init callback

2026-06-20 08:29:23 +00:00

util.rs

performance-metrics: Switch to QcowDisk

2026-06-08 13:19:32 +00:00