Here's a new version of the extended I/O accounting patches.
This one is rebased on top of the current master, has a few minor
documentation fixes and drops the 'supports_stats' field completely.
Regards,
Berto
v3:
- Rebased on top of the current master and on Max's BlockBackend
series v7
- patch 4: minor documentation fixes
- patch 5: s/miliseconds/nanoseconds/
- patch 6: dropped, there's no "supports_stats" anymore
- patch 7 (now 6): explain why block_acct_invalid() does not update
total_time_ns[]
- patch 12 (now 11): don't initialize BlockAcctCookie to { 0 }, it's
not needed
v2: https://lists.gnu.org/archive/html/qemu-block/2015-10/msg00161.html
- First complete implementation of the new statistics
v1: https://lists.gnu.org/archive/html/qemu-devel/2015-06/msg03321.html
- Initial series containing only the timed average infrastructure.
Alberto Garcia (21):
xen_disk: Account for flush operations
ide: Account for write operations correctly
block: define 'clock_type' for the accounting code
util: Infrastructure for computing recent averages
block: Add idle_time_ns to BlockDeviceStats
block: Add statistics for failed and invalid I/O operations
block: Allow configuring whether to account failed and invalid ops
block: Compute minimum, maximum and average I/O latencies
block: Add average I/O queue depth to BlockDeviceTimedStats
block: New option to define the intervals for collecting I/O
statistics
qemu-io: Account for failed, invalid and flush operations
block: Use QEMU_CLOCK_VIRTUAL for the accounting code in qtest mode
iotests: Add test for the block device statistics
nvme: Account for failed and invalid operations
virtio-blk: Account for failed and invalid operations
xen_disk: Account for failed and invalid operations
atapi: Account for failed and invalid operations
ide: Account for failed and invalid operations
macio: Account for failed operations
scsi-disk: Account for failed operations
block: Update copyright of the accounting code
block/accounting.c | 123 ++++++++++++++-
block/block-backend.c | 1 +
block/qapi.c | 51 +++++++
blockdev.c | 53 +++++++
hmp.c | 4 +-
hw/block/nvme.c | 11 +-
hw/block/virtio-blk.c | 4 +-
hw/block/xen_disk.c | 27 +++-
hw/ide/atapi.c | 31 ++--
hw/ide/core.c | 12 +-
hw/ide/macio.c | 12 +-
hw/scsi/scsi-disk.c | 46 ++++--
include/block/accounting.h | 28 ++++
include/qemu/timed-average.h | 64 ++++++++
qapi/block-core.json | 103 ++++++++++++-
qemu-io-cmds.c | 9 ++
qmp-commands.hx | 80 +++++++++-
tests/Makefile | 4 +
tests/qemu-iotests/136 | 349 +++++++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/136.out | 5 +
tests/qemu-iotests/group | 1 +
tests/test-timed-average.c | 90 +++++++++++
util/Makefile.objs | 1 +
util/timed-average.c | 227 ++++++++++++++++++++++++++++
24 files changed, 1288 insertions(+), 48 deletions(-)
create mode 100644 include/qemu/timed-average.h
create mode 100644 tests/qemu-iotests/136
create mode 100644 tests/qemu-iotests/136.out
create mode 100644 tests/test-timed-average.c
create mode 100644 util/timed-average.c
--
2.6.1
