Data ONTAP 8.2 Reference - qos statistics workload performance show

qos statistics workload performance show

Display system performance data per QoS workload

Availability: This command is available to cluster administrators at the admin privilege level.

Description

The qos statistics workload performance show command shows the current system performance that each QoS workload is achieving.

The command displays the following data:

The QoS workload name (Workload)
The QoS workload ID (ID)
Input/output operations performed per second (IOPS)
Throughput in kilobytes per second (KB/s) or megabytes per second (MB/s) as appropriate (Throughput)
Latency observed per request in microseconds (us) or milliseconds (ms) as appropriate (Latency)

The results displayed per iteration are sorted by IOPS. Each iteration starts with a row that displays the total IOPS used across all QoS workloads. Other columns in this row are either totals or averages.

Parameters

[-node {<nodename>|local}] - Node

Selects the QOS workloads that match this parameter value. If you do not specify this parameter, the command displays data for the entire cluster.

[-iterations <integer>] - Number of Iterations

Specifies the number of times the display is refreshed before terminating. If you do not specify this parameter, the command iterates until interrupted by Ctrl-C.

[-rows <integer>] - Number of Rows in the Output

Specifies the number of busiest QoS workloads to display. The default setting is 10. The allowed range of values is 1 to 20.

[-refresh-display {true|false}] - Toggle Screen Refresh Between Each Iteration

Specifies the display style. If true, the command clears the display after each data iteration. If false, the command displays each data iteration below the previous one. The default is false.

Examples

    cluster1::> qos statistics workload performance show -iterations 100 -rows 4
Workload          ID     IOPS      Throughput    Latency
--------------- ------ -------- ---------------- ----------
-total-              -       97         1.90MB/s   216.87ms
_Scan_Besteff..    101       31            0KB/s        0ms
vol_2-wid104       104       28         1.75MB/s   412.78ms
vol_1-wid103       103       25       100.00KB/s   169.16ms
vs1vol0-wid102     102       13        52.00KB/s   403.78ms
-total-              -       98      1276.00KB/s    89.98ms
_Scan_Besteff..    101       34            0KB/s        0ms
vs1vol0-wid102     102       28       112.00KB/s    80.70ms
vol_1-wid103       103       19        76.00KB/s   114.72ms
vol_2-wid104       104       17      1088.00KB/s   257.60ms
-total-              -       78      1152.00KB/s   225.22ms
_Scan_Besteff..    101       30            0KB/s        0ms
vol_1-wid103       103       17        68.00KB/s   452.27ms
vol_2-wid104       104       16      1024.00KB/s   419.93ms
vs1vol0-wid102     102       15        60.00KB/s   210.63ms

The example above displays the system performance for the 4 QoS workloads with the highest IOPS and it refreshes the display 100 times before terminating.