statistics namespace show
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PDFs
Namespace throughput and latency metrics
Availability: This command is available to cluster and Vserver administrators at the admin privilege level.
Description
This command continuously displays performance data for Namespaces at a regular interval. The command output displays data in the following columns:
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Namespace - Namespace name.
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Vserver - vserver name.
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Total Ops - total number of operations per second.
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Read Ops - read operations per second.
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Write Ops - write operations per second.
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Other Ops - other operations per second.
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Read (Bps) - read throughput in bytes per second.
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Write (Bps) - write throughput in bytes per second.
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Latency(ms) - average latency for an operation in milliseconds.
Parameters
[-namespace <text>]- Namespace-
Selects the Namespace for which you want to display performance data.
[-vserver <vserver name>]- Vserver-
Selects the vserver for which you want to display performance data.
[-sort-key <text>]- Column to Sort By-
If this parameter is specified, the command displays statistics sorted by the specified column.
-interval <integer>- Interval-
Specifies, in seconds, the interval between statistics updates. The default setting is 5 seconds.
-iterations <integer>- Iterations-
Specifies the number of iterations the command runs before terminating. The default setting is 1. If the number is 0 (zero), the command continues to run until you interrupt it by pressing Ctrl-C.
-max <integer>- Maximum Number of Instances-
Specifies the maximum number of Namespaces to display. The default setting is 25.
Examples
The following example displays Namespace statistics:
cluster1::> statistics namespace show cluster1 : 12/31/2017 16:00:04 *Total Read Write Other Read Write Latency Namespace Vserver Ops Ops Ops Ops (Bps) (Bps) (ms) ---------- ------- ------ ---- ----- ----- ------ ----- ------- ns1 vs1 58 13 15 29 310585 3014 39 ns0 vs2 56 0 11 45 8192 28826 47 [...]