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From: Todd Gill <>
Subject: [linux-lvm] [PATCH 0/2] JSON output for dmstats
Date: Fri, 24 Jan 2020 14:58:28 -0500	[thread overview]
Message-ID: <> (raw)

This set of patches adds "--reportformat basic|json" options for the
dmstats list and report commands.

In the case where --count is specified with the JSON reportformat, the
output will be <count> consecutive JSON documents.

Example output of a single iteration of "report" in JSON:

    "report": [{
        "stats_name": "mirrorvg-mirrorlv",
        "group_id": "-",
        "region_id": "0",
        "obj_type": "area",
        "area_id": "0",
        "area_start": "0",
        "area_len": "1.00g",
        "reads_merged_per_sec": "0.00",
        "writes_merged_per_sec": "0.00",
        "reads_per_sec": "0.00",
        "writes_per_sec": "0.00",
        "read_size_per_sec": "0",
        "write_size_per_sec": "0",
        "avg_request_size": "0",
        "queue_size": "0.00",
        "util": "0.00",
        "await": "0.00",
        "read_await": "0.00",
        "write_await": "0.00"

The above JSON has been reformatted for line length, but the content
is from dmstats using this change.

Example output of "list" in JSON:

    "list": [{
        "stats_name": "mirrorvg-mirrorlv",
        "group_id": "-",
        "region_id": "0",
        "obj_type": "region",
        "region_start": "0",
        "region_len": "1.00g",
        "area_count": "1",
        "area_len": "1.00g",
        "program_id": "dmstats"

Todd Gill (2):
  Add JSON output support to dmstats for list and report subcommands
  Update man page to include --reportformat for list and report

 libdm/dm-tools/dmsetup.c | 45 +++++++++++++++++++++++++++++++++-------
 man/dmstats.8_main       | 11 ++++++++++
 2 files changed, 48 insertions(+), 8 deletions(-)


             reply	other threads:[~2020-01-24 19:58 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-24 19:58 Todd Gill [this message]
2020-01-24 19:58 ` [linux-lvm] [PATCH 1/2] Add JSON output support to dmstats for list and report subcommands Todd Gill
2020-01-24 19:58 ` [linux-lvm] [PATCH 2/2] Update man page to include --reportformat " Todd Gill

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