diff options
| author | Philippe Mathieu-Daudé <philmd@redhat.com> | 2020-10-01 18:29:39 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2020-10-23 13:42:16 +0100 |
| commit | f25e7ab2b091fae1ae3e9f55b5244ddcdb1653bb (patch) | |
| tree | b78df72add39004c843c1fcd67157ff0fcc04a1f /qapi | |
| parent | 4c5b97bfd0dd54dc27717ae8d1cd10e14eef1430 (diff) | |
block/nvme: Add driver statistics for access alignment and hw errors
Keep statistics of some hardware errors, and number of
aligned/unaligned I/O accesses.
QMP example booting a full RHEL 8.3 aarch64 guest:
{ "execute": "query-blockstats" }
{
"return": [
{
"device": "",
"node-name": "drive0",
"stats": {
"flush_total_time_ns": 6026948,
"wr_highest_offset": 3383991230464,
"wr_total_time_ns": 807450995,
"failed_wr_operations": 0,
"failed_rd_operations": 0,
"wr_merged": 3,
"wr_bytes": 50133504,
"failed_unmap_operations": 0,
"failed_flush_operations": 0,
"account_invalid": false,
"rd_total_time_ns": 1846979900,
"flush_operations": 130,
"wr_operations": 659,
"rd_merged": 1192,
"rd_bytes": 218244096,
"account_failed": false,
"idle_time_ns": 2678641497,
"rd_operations": 7406,
},
"driver-specific": {
"driver": "nvme",
"completion-errors": 0,
"unaligned-accesses": 2959,
"aligned-accesses": 4477
},
"qdev": "/machine/peripheral-anon/device[0]/virtio-backend"
}
]
}
Suggested-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20201001162939.1567915-1-philmd@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'qapi')
| -rw-r--r-- | qapi/block-core.json | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/qapi/block-core.json b/qapi/block-core.json index ee5ebef7f2..e00fc27b5e 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -948,6 +948,27 @@ 'discard-bytes-ok': 'uint64' } } ## +# @BlockStatsSpecificNvme: +# +# NVMe driver statistics +# +# @completion-errors: The number of completion errors. +# +# @aligned-accesses: The number of aligned accesses performed by +# the driver. +# +# @unaligned-accesses: The number of unaligned accesses performed by +# the driver. +# +# Since: 5.2 +## +{ 'struct': 'BlockStatsSpecificNvme', + 'data': { + 'completion-errors': 'uint64', + 'aligned-accesses': 'uint64', + 'unaligned-accesses': 'uint64' } } + +## # @BlockStatsSpecific: # # Block driver specific statistics @@ -959,7 +980,8 @@ 'discriminator': 'driver', 'data': { 'file': 'BlockStatsSpecificFile', - 'host_device': 'BlockStatsSpecificFile' } } + 'host_device': 'BlockStatsSpecificFile', + 'nvme': 'BlockStatsSpecificNvme' } } ## # @BlockStats: |