QA output created by 725

=== jbd2 agent installation ===
You will need to choose an appropriate configuration for installation of
the "jbd2" Performance Metrics Domain Agent (PMDA).

  collector	collect performance statistics on this system
  monitor	allow this system to monitor local and/or remote systems
  both		collector and monitor configuration for this system

Please enter c(ollector) or m(onitor) or b(oth) [b] Install jbd2 as a daemon or dso agent? [daemon] Updating the Performance Metrics Name Space (PMNS) ...
Terminate PMDA if already installed ...
[...install files, make output...]
Updating the PMCD control file, and notifying PMCD ...
Check jbd2 metrics have appeared ... ok

=== validate values, no instances ===

    Data Type: NN-bit unsigned int  InDom: PM_INDOM_NULL 0xffffffff
    Semantics: instant  Units: count
    value 0
Count of active JBD2 (Journal Block Device v2) devices
Help:
jbd2.njournals PMID: 122.0.0 [Count of active JBD2 (Journal Block Device v2) devices]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: count
Average number of blocks per transaction for all transactions.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
jbd2.transaction.average.blocks PMID: 122.0.20 [Average transaction blocks per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: count
Average number of blocks logged per transaction for all transactions.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
jbd2.transaction.average.blocks_logged PMID: 122.0.21 [Average logged blocks per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: count
Average number of handles used per transaction for all transactions.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
jbd2.transaction.average.handles PMID: 122.0.22 [Average handle count per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
Average transaction locked time over all transactions since mount.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
jbd2.transaction.average.time.being_locked PMID: 122.0.16 [Average locked time per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: microsec
Average time spent committing transactions for all transactions since
Help:
No value(s) available!
jbd2.transaction.average.time.committing PMID: 122.0.19 [Average commit time per journal]
mount.  Exported directly from per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
Average time flushing data (ordered mode) for all transactions since
Help:
No value(s) available!
jbd2.transaction.average.time.flushing_ordered_mode_data PMID: 122.0.17 [Average data flush time per journal]
mount.  Exported directly from per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
Average time spent logging transactions for all transactions since
Help:
No value(s) available!
jbd2.transaction.average.time.logging PMID: 122.0.18 [Average logging time per journal]
mount.  Exported directly from per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
Average request delay for all transactions to complete since mount.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
jbd2.transaction.average.time.request_delay PMID: 122.0.14 [Average request delay per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
Average transaction running time over all transactions since mount.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
jbd2.transaction.average.time.running PMID: 122.0.15 [Average running time per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
Average time spent waiting for transactions to complete since mount.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
jbd2.transaction.average.time.waiting PMID: 122.0.13 [Average time waiting per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
Help:
No value(s) available!
This metric is sourced from the per-device /proc/fs/jbd2 info file.
jbd2.transaction.count PMID: 122.0.1 [Total transactions committed per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: none
Help:
No value(s) available!
This metric is sourced from the per-device /proc/fs/jbd2 info file.
jbd2.transaction.max_blocks PMID: 122.0.3 [Maximum transaction blocks (buffers) per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
Help:
No value(s) available!
This metric is sourced from the per-device /proc/fs/jbd2 info file.
jbd2.transaction.requested PMID: 122.0.2 [Total journal transactions requested per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
Total number of blocks in all transactions since device mounted.
jbd2.transaction.total.blocks PMID: 122.0.10 [Total transaction blocks per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
Total number of blocks logged in all transactions since mount.
jbd2.transaction.total.blocks_logged PMID: 122.0.11 [Total logged blocks per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
Total count of handles used in all transactions since mount.
jbd2.transaction.total.handles PMID: 122.0.12 [Total handle count per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
Total transaction locked time over all transactions since mount.
jbd2.transaction.total.time.being_locked PMID: 122.0.7 [Total locked time per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
Help:
No value(s) available!
Total time flushing data (ordered mode) for all transactions since
jbd2.transaction.total.time.flushing_ordered_mode_data PMID: 122.0.8 [Total data flush time per journal]
mount.  Derived from values in per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
Help:
No value(s) available!
Total time spent logging transactions for all transactions since
jbd2.transaction.total.time.logging PMID: 122.0.9 [Total logging time per journal]
mount.  Derived from values in per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
Total request delay for all transactions to complete since mount.
jbd2.transaction.total.time.request_delay PMID: 122.0.5 [Total request delay per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
Total transaction running time over all transactions since mount.
jbd2.transaction.total.time.running PMID: 122.0.6 [Total running time per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
Total time spent waiting for transactions to complete since mount.
jbd2.transaction.total.time.waiting PMID: 122.0.4 [Total time waiting per journal]

=== add some older-format instances ===

    Data Type: NN-bit unsigned int  InDom: PM_INDOM_NULL 0xffffffff
    Semantics: instant  Units: count
    value 1
Count of active JBD2 (Journal Block Device v2) devices
Help:
jbd2.njournals PMID: 122.0.0 [Count of active JBD2 (Journal Block Device v2) devices]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: count
    inst [0 or "sda1-8"] value 4
Average number of blocks per transaction for all transactions.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.blocks PMID: 122.0.20 [Average transaction blocks per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: count
    inst [0 or "sda1-8"] value 5
Average number of blocks logged per transaction for all transactions.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.blocks_logged PMID: 122.0.21 [Average logged blocks per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: count
    inst [0 or "sda1-8"] value 262
Average number of handles used per transaction for all transactions.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.handles PMID: 122.0.22 [Average handle count per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
    inst [0 or "sda1-8"] value 0
Average transaction locked time over all transactions since mount.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.time.being_locked PMID: 122.0.16 [Average locked time per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: microsec
    inst [0 or "sda1-8"] value 52335
Average time spent committing transactions for all transactions since
Help:
jbd2.transaction.average.time.committing PMID: 122.0.19 [Average commit time per journal]
mount.  Exported directly from per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
    inst [0 or "sda1-8"] value 0
Average time flushing data (ordered mode) for all transactions since
Help:
jbd2.transaction.average.time.flushing_ordered_mode_data PMID: 122.0.17 [Average data flush time per journal]
mount.  Exported directly from per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
    inst [0 or "sda1-8"] value 35
Average time spent logging transactions for all transactions since
Help:
jbd2.transaction.average.time.logging PMID: 122.0.18 [Average logging time per journal]
mount.  Exported directly from per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
Average request delay for all transactions to complete since mount.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
jbd2.transaction.average.time.request_delay PMID: 122.0.14 [Average request delay per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
    inst [0 or "sda1-8"] value 5327
Average transaction running time over all transactions since mount.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.time.running PMID: 122.0.15 [Average running time per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
    inst [0 or "sda1-8"] value 0
Average time spent waiting for transactions to complete since mount.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.time.waiting PMID: 122.0.13 [Average time waiting per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
    inst [0 or "sda1-8"] value 24
Help:
This metric is sourced from the per-device /proc/fs/jbd2 info file.
jbd2.transaction.count PMID: 122.0.1 [Total transactions committed per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: none
    inst [0 or "sda1-8"] value 2048
Help:
This metric is sourced from the per-device /proc/fs/jbd2 info file.
jbd2.transaction.max_blocks PMID: 122.0.3 [Maximum transaction blocks (buffers) per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
Help:
No value(s) available!
This metric is sourced from the per-device /proc/fs/jbd2 info file.
jbd2.transaction.requested PMID: 122.0.2 [Total journal transactions requested per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
    inst [0 or "sda1-8"] value 96
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total number of blocks in all transactions since device mounted.
jbd2.transaction.total.blocks PMID: 122.0.10 [Total transaction blocks per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
    inst [0 or "sda1-8"] value 120
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total number of blocks logged in all transactions since mount.
jbd2.transaction.total.blocks_logged PMID: 122.0.11 [Total logged blocks per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
    inst [0 or "sda1-8"] value 6288
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total count of handles used in all transactions since mount.
jbd2.transaction.total.handles PMID: 122.0.12 [Total handle count per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
    inst [0 or "sda1-8"] value 0
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total transaction locked time over all transactions since mount.
jbd2.transaction.total.time.being_locked PMID: 122.0.7 [Total locked time per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
    inst [0 or "sda1-8"] value 0
Help:
Total time flushing data (ordered mode) for all transactions since
jbd2.transaction.total.time.flushing_ordered_mode_data PMID: 122.0.8 [Total data flush time per journal]
mount.  Derived from values in per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
    inst [0 or "sda1-8"] value 840
Help:
Total time spent logging transactions for all transactions since
jbd2.transaction.total.time.logging PMID: 122.0.9 [Total logging time per journal]
mount.  Derived from values in per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
No value(s) available!
Total request delay for all transactions to complete since mount.
jbd2.transaction.total.time.request_delay PMID: 122.0.5 [Total request delay per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
    inst [0 or "sda1-8"] value 127848
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total transaction running time over all transactions since mount.
jbd2.transaction.total.time.running PMID: 122.0.6 [Total running time per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
    inst [0 or "sda1-8"] value 0
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total time spent waiting for transactions to complete since mount.
jbd2.transaction.total.time.waiting PMID: 122.0.4 [Total time waiting per journal]

=== add some newer-format instances ===

    Data Type: NN-bit unsigned int  InDom: PM_INDOM_NULL 0xffffffff
    Semantics: instant  Units: count
    value 1
Count of active JBD2 (Journal Block Device v2) devices
Help:
jbd2.njournals PMID: 122.0.0 [Count of active JBD2 (Journal Block Device v2) devices]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: count
    inst [1 or "dm-1-8"] value 5
Average number of blocks per transaction for all transactions.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.blocks PMID: 122.0.20 [Average transaction blocks per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: count
    inst [1 or "dm-1-8"] value 6
Average number of blocks logged per transaction for all transactions.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.blocks_logged PMID: 122.0.21 [Average logged blocks per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: count
    inst [1 or "dm-1-8"] value 72
Average number of handles used per transaction for all transactions.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.handles PMID: 122.0.22 [Average handle count per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
    inst [1 or "dm-1-8"] value 0
Average transaction locked time over all transactions since mount.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.time.being_locked PMID: 122.0.16 [Average locked time per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: microsec
    inst [1 or "dm-1-8"] value 22584
Average time spent committing transactions for all transactions since
Help:
jbd2.transaction.average.time.committing PMID: 122.0.19 [Average commit time per journal]
mount.  Exported directly from per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
    inst [1 or "dm-1-8"] value 0
Average time flushing data (ordered mode) for all transactions since
Help:
jbd2.transaction.average.time.flushing_ordered_mode_data PMID: 122.0.17 [Average data flush time per journal]
mount.  Exported directly from per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
    inst [1 or "dm-1-8"] value 26
Average time spent logging transactions for all transactions since
Help:
jbd2.transaction.average.time.logging PMID: 122.0.18 [Average logging time per journal]
mount.  Exported directly from per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
    inst [1 or "dm-1-8"] value 0
Average request delay for all transactions to complete since mount.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.time.request_delay PMID: 122.0.14 [Average request delay per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
    inst [1 or "dm-1-8"] value 4019
Average transaction running time over all transactions since mount.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.time.running PMID: 122.0.15 [Average running time per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: millisec
    inst [1 or "dm-1-8"] value 0
Average time spent waiting for transactions to complete since mount.
Exported directly from per-device /proc/fs/jbd2 info files.
Help:
jbd2.transaction.average.time.waiting PMID: 122.0.13 [Average time waiting per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
    inst [1 or "dm-1-8"] value 6117
Help:
This metric is sourced from the per-device /proc/fs/jbd2 info file.
jbd2.transaction.count PMID: 122.0.1 [Total transactions committed per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: instant  Units: none
    inst [1 or "dm-1-8"] value 8192
Help:
This metric is sourced from the per-device /proc/fs/jbd2 info file.
jbd2.transaction.max_blocks PMID: 122.0.3 [Maximum transaction blocks (buffers) per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
    inst [1 or "dm-1-8"] value 19053
Help:
This metric is sourced from the per-device /proc/fs/jbd2 info file.
jbd2.transaction.requested PMID: 122.0.2 [Total journal transactions requested per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
    inst [1 or "dm-1-8"] value 30585
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total number of blocks in all transactions since device mounted.
jbd2.transaction.total.blocks PMID: 122.0.10 [Total transaction blocks per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
    inst [1 or "dm-1-8"] value 36702
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total number of blocks logged in all transactions since mount.
jbd2.transaction.total.blocks_logged PMID: 122.0.11 [Total logged blocks per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: count
    inst [1 or "dm-1-8"] value 440424
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total count of handles used in all transactions since mount.
jbd2.transaction.total.handles PMID: 122.0.12 [Total handle count per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
    inst [1 or "dm-1-8"] value 0
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total transaction locked time over all transactions since mount.
jbd2.transaction.total.time.being_locked PMID: 122.0.7 [Total locked time per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
    inst [1 or "dm-1-8"] value 0
Help:
Total time flushing data (ordered mode) for all transactions since
jbd2.transaction.total.time.flushing_ordered_mode_data PMID: 122.0.8 [Total data flush time per journal]
mount.  Derived from values in per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
    inst [1 or "dm-1-8"] value 159042
Help:
Total time spent logging transactions for all transactions since
jbd2.transaction.total.time.logging PMID: 122.0.9 [Total logging time per journal]
mount.  Derived from values in per-device /proc/fs/jbd2 info files.

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
    inst [1 or "dm-1-8"] value 0
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total request delay for all transactions to complete since mount.
jbd2.transaction.total.time.request_delay PMID: 122.0.5 [Total request delay per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
    inst [1 or "dm-1-8"] value 24584223
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total transaction running time over all transactions since mount.
jbd2.transaction.total.time.running PMID: 122.0.6 [Total running time per journal]

    Data Type: NN-bit unsigned int  InDom: 122.0 0x1e800000
    Semantics: counter  Units: millisec
    inst [1 or "dm-1-8"] value 0
Derived from values in the per-device /proc/fs/jbd2 info files.
Help:
Total time spent waiting for transactions to complete since mount.
jbd2.transaction.total.time.waiting PMID: 122.0.4 [Total time waiting per journal]

=== remove jbd2 agent ===
Culling the Performance Metrics Name Space ...
jbd2 ... done
Updating the PMCD control file, and notifying PMCD ...
[...removing files...]
Check jbd2 metrics have gone away ... OK
Waiting for pmcd to terminate ...
Starting pmcd ... 
Starting pmlogger ... 
