201 lines
21 KiB
Markdown
201 lines
21 KiB
Markdown
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# DPDK Input Plugin
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The `dpdk` plugin collects metrics exposed by applications built with [Data Plane Development Kit](https://www.dpdk.org/)
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which is an extensive set of open source libraries designed for accelerating packet processing workloads.
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DPDK provides APIs that enable exposing various statistics from the devices used by DPDK applications and enable exposing
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KPI metrics directly from applications. Device statistics include e.g. common statistics available across NICs, like:
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received and sent packets, received and sent bytes etc. In addition to this generic statistics, an extended statistics API
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is available that allows providing more detailed, driver-specific metrics that are not available as generic statistics.
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[DPDK Release 20.05](https://doc.dpdk.org/guides/rel_notes/release_20_05.html) introduced updated telemetry interface
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that enables DPDK libraries and applications to provide their telemetry. This is referred to as `v2` version of this
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socket-based telemetry interface. This release enabled e.g. reading driver-specific extended stats (`/ethdev/xstats`)
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via this new interface.
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[DPDK Release 20.11](https://doc.dpdk.org/guides/rel_notes/release_20_11.html) introduced reading via `v2` interface
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common statistics (`/ethdev/stats`) in addition to existing (`/ethdev/xstats`).
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The example usage of `v2` telemetry interface can be found in [Telemetry User Guide](https://doc.dpdk.org/guides/howto/telemetry.html).
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A variety of [DPDK Sample Applications](https://doc.dpdk.org/guides/sample_app_ug/index.html) is also available for users
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to discover and test the capabilities of DPDK libraries and to explore the exposed metrics.
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> **DPDK Version Info:** This plugin uses this `v2` interface to read telemetry data from applications build with
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> `DPDK version >= 20.05`. The default configuration include reading common statistics from `/ethdev/stats` that is
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> available from `DPDK version >= 20.11`. When using `DPDK 20.05 <= version < DPDK 20.11` it is recommended to disable
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> querying `/ethdev/stats` by setting corresponding `exclude_commands` configuration option.
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> **NOTE:** Since DPDK will most likely run with root privileges, the socket telemetry interface exposed by DPDK
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> will also require root access. This means that either access permissions have to be adjusted for socket telemetry
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> interface to allow Telegraf to access it, or Telegraf should run with root privileges.
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## Configuration
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This plugin offers multiple configuration options, please review examples below for additional usage information.
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```toml
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# Reads metrics from DPDK applications using v2 telemetry interface.
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[[inputs.dpdk]]
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## Path to DPDK telemetry socket. This shall point to v2 version of DPDK telemetry interface.
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# socket_path = "/var/run/dpdk/rte/dpdk_telemetry.v2"
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## Duration that defines how long the connected socket client will wait for a response before terminating connection.
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## This includes both writing to and reading from socket. Since it's local socket access
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## to a fast packet processing application, the timeout should be sufficient for most users.
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## Setting the value to 0 disables the timeout (not recommended)
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# socket_access_timeout = "200ms"
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## Enables telemetry data collection for selected device types.
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## Adding "ethdev" enables collection of telemetry from DPDK NICs (stats, xstats, link_status).
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## Adding "rawdev" enables collection of telemetry from DPDK Raw Devices (xstats).
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# device_types = ["ethdev"]
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## List of custom, application-specific telemetry commands to query
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## The list of available commands depend on the application deployed. Applications can register their own commands
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## via telemetry library API http://doc.dpdk.org/guides/prog_guide/telemetry_lib.html#registering-commands
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## For e.g. L3 Forwarding with Power Management Sample Application this could be:
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## additional_commands = ["/l3fwd-power/stats"]
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# additional_commands = []
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## Allows turning off collecting data for individual "ethdev" commands.
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## Remove "/ethdev/link_status" from list to start getting link status metrics.
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[inputs.dpdk.ethdev]
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exclude_commands = ["/ethdev/link_status"]
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## When running multiple instances of the plugin it's recommended to add a unique tag to each instance to identify
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## metrics exposed by an instance of DPDK application. This is useful when multiple DPDK apps run on a single host.
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## [inputs.dpdk.tags]
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## dpdk_instance = "my-fwd-app"
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```
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### Example: Minimal Configuration for NIC metrics
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This configuration allows getting metrics for all devices reported via `/ethdev/list` command:
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* `/ethdev/stats` - basic device statistics (since `DPDK 20.11`)
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* `/ethdev/xstats` - extended device statistics
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* `/ethdev/link_status` - up/down link status
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```toml
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[[inputs.dpdk]]
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device_types = ["ethdev"]
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```
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Since this configuration will query `/ethdev/link_status` it's recommended to increase timeout to `socket_access_timeout = "10s"`.
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The [plugin collecting interval](https://github.com/influxdata/telegraf/blob/master/docs/CONFIGURATION.md#input-plugins)
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should be adjusted accordingly (e.g. `interval = "30s"`).
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### Example: Excluding NIC link status from being collected
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Checking link status depending on underlying implementation may take more time to complete.
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This configuration can be used to exclude this telemetry command to allow faster response for metrics.
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```toml
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[[inputs.dpdk]]
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device_types = ["ethdev"]
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[inputs.dpdk.ethdev]
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exclude_commands = ["/ethdev/link_status"]
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```
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A separate plugin instance with higher timeout settings can be used to get `/ethdev/link_status` independently.
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Consult [Independent NIC link status configuration](#example-independent-nic-link-status-configuration)
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and [Getting metrics from multiple DPDK instances running on same host](#example-getting-metrics-from-multiple-dpdk-instances-running-on-same-host)
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examples for further details.
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### Example: Independent NIC link status configuration
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This configuration allows getting `/ethdev/link_status` using separate configuration, with higher timeout.
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```toml
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[[inputs.dpdk]]
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interval = "30s"
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socket_access_timeout = "10s"
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device_types = ["ethdev"]
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[inputs.dpdk.ethdev]
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exclude_commands = ["/ethdev/stats", "/ethdev/xstats"]
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```
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### Example: Getting application-specific metrics
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This configuration allows reading custom metrics exposed by applications. Example telemetry command obtained from
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[L3 Forwarding with Power Management Sample Application](https://doc.dpdk.org/guides/sample_app_ug/l3_forward_power_man.html).
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```toml
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[[inputs.dpdk]]
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device_types = ["ethdev"]
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additional_commands = ["/l3fwd-power/stats"]
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[inputs.dpdk.ethdev]
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exclude_commands = ["/ethdev/link_status"]
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```
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Command entries specified in `additional_commands` should match DPDK command format:
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* Command entry format: either `command` or `command,params` for commands that expect parameters, where comma (`,`) separates command from params.
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* Command entry length (command with params) should be `< 1024` characters.
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* Command length (without params) should be `< 56` characters.
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* Commands have to start with `/`.
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Providing invalid commands will prevent the plugin from starting. Additional commands allow duplicates, but they
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will be removed during execution so each command will be executed only once during each metric gathering interval.
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### Example: Getting metrics from multiple DPDK instances running on same host
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This configuration allows getting metrics from two separate applications exposing their telemetry interfaces
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via separate sockets. For each plugin instance a unique tag `[inputs.dpdk.tags]` allows distinguishing between them.
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```toml
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# Instance #1 - L3 Forwarding with Power Management Application
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[[inputs.dpdk]]
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socket_path = "/var/run/dpdk/rte/l3fwd-power_telemetry.v2"
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device_types = ["ethdev"]
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additional_commands = ["/l3fwd-power/stats"]
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[inputs.dpdk.ethdev]
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exclude_commands = ["/ethdev/link_status"]
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[inputs.dpdk.tags]
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dpdk_instance = "l3fwd-power"
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# Instance #2 - L2 Forwarding with Intel Cache Allocation Technology (CAT) Application
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[[inputs.dpdk]]
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socket_path = "/var/run/dpdk/rte/l2fwd-cat_telemetry.v2"
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device_types = ["ethdev"]
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[inputs.dpdk.ethdev]
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exclude_commands = ["/ethdev/link_status"]
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[inputs.dpdk.tags]
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dpdk_instance = "l2fwd-cat"
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```
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This utilizes Telegraf's standard capability of [adding custom tags](https://github.com/influxdata/telegraf/blob/master/docs/CONFIGURATION.md#input-plugins)
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to input plugin's measurements.
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## Metrics
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The DPDK socket accepts `command,params` requests and returns metric data in JSON format. All metrics from DPDK socket
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become flattened using [Telegraf's JSON Flattener](../../parsers/json/README.md) and exposed as fields.
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If DPDK response contains no information (is empty or is null) then such response will be discarded.
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> **NOTE:** Since DPDK allows registering custom metrics in its telemetry framework the JSON response from DPDK
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> may contain various sets of metrics. While metrics from `/ethdev/stats` should be most stable, the `/ethdev/xstats`
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> may contain driver-specific metrics (depending on DPDK application configuration). The application-specific commands
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> like `/l3fwd-power/stats` can return their own specific set of metrics.
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## Example output
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The output consists of plugin name (`dpdk`), and a set of tags that identify querying hierarchy:
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```
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dpdk,host=dpdk-host,dpdk_instance=l3fwd-power,command=/ethdev/stats,params=0 [fields] [timestamp]
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```
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| Tag | Description |
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|-----|-------------|
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| `host` | hostname of the machine (consult [Telegraf Agent configuration](https://github.com/influxdata/telegraf/blob/master/docs/CONFIGURATION.md#agent) for additional details) |
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| `dpdk_instance` | custom tag from `[inputs.dpdk.tags]` (optional) |
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| `command` | executed command (without params) |
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| `params` | command parameter, e.g. for `/ethdev/stats` it is the id of NIC as exposed by `/ethdev/list`<br>For DPDK app that uses 2 NICs the metrics will output e.g. `params=0`, `params=1`. |
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When running plugin configuration below...
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```toml
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[[inputs.dpdk]]
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device_types = ["ethdev"]
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additional_commands = ["/l3fwd-power/stats"]
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[inputs.dpdk.tags]
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dpdk_instance = "l3fwd-power"
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```
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...expected output for `dpdk` plugin instance running on host named `host=dpdk-host`:
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```
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dpdk,command=/ethdev/stats,dpdk_instance=l3fwd-power,host=dpdk-host,params=0 q_opackets_0=0,q_ipackets_5=0,q_errors_11=0,ierrors=0,q_obytes_5=0,q_obytes_10=0,q_opackets_10=0,q_ipackets_4=0,q_ipackets_7=0,q_ipackets_15=0,q_ibytes_5=0,q_ibytes_6=0,q_ibytes_9=0,obytes=0,q_opackets_1=0,q_opackets_11=0,q_obytes_7=0,q_errors_5=0,q_errors_10=0,q_ibytes_4=0,q_obytes_6=0,q_errors_1=0,q_opackets_5=0,q_errors_3=0,q_errors_12=0,q_ipackets_11=0,q_ipackets_12=0,q_obytes_14=0,q_opackets_15=0,q_obytes_2=0,q_errors_8=0,q_opackets_12=0,q_errors_0=0,q_errors_9=0,q_opackets_14=0,q_ibytes_3=0,q_ibytes_15=0,q_ipackets_13=0,q_ipackets_14=0,q_obytes_3=0,q_errors_13=0,q_opackets_3=0,q_ibytes_0=7092,q_ibytes_2=0,q_ibytes_8=0,q_ipackets_8=0,q_ipackets_10=0,q_obytes_4=0,q_ibytes_10=0,q_ibytes_13=0,q_ibytes_1=0,q_ibytes_12=0,opackets=0,q_obytes_1=0,q_errors_15=0,q_opackets_2=0,oerrors=0,rx_nombuf=0,q_opackets_8=0,q_ibytes_11=0,q_ipackets_3=0,q_obytes_0=0,q_obytes_12=0,q_obytes_11=0,q_obytes_13=0,q_errors_6=0,q_ipackets_1=0,q_ipackets_6=0,q_ipackets_9=0,q_obytes_15=0,q_opackets_7=0,q_ibytes_14=0,ipackets=98,q_ipackets_2=0,q_opackets_6=0,q_ibytes_7=0,imissed=0,q_opackets_4=0,q_opackets_9=0,q_obytes_8=0,q_obytes_9=0,q_errors_4=0,q_errors_14=0,q_opackets_13=0,ibytes=7092,q_ipackets_0=98,q_errors_2=0,q_errors_7=0 1606310780000000000
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dpdk,command=/ethdev/stats,dpdk_instance=l3fwd-power,host=dpdk-host,params=1 q_opackets_0=0,q_ipackets_5=0,q_errors_11=0,ierrors=0,q_obytes_5=0,q_obytes_10=0,q_opackets_10=0,q_ipackets_4=0,q_ipackets_7=0,q_ipackets_15=0,q_ibytes_5=0,q_ibytes_6=0,q_ibytes_9=0,obytes=0,q_opackets_1=0,q_opackets_11=0,q_obytes_7=0,q_errors_5=0,q_errors_10=0,q_ibytes_4=0,q_obytes_6=0,q_errors_1=0,q_opackets_5=0,q_errors_3=0,q_errors_12=0,q_ipackets_11=0,q_ipackets_12=0,q_obytes_14=0,q_opackets_15=0,q_obytes_2=0,q_errors_8=0,q_opackets_12=0,q_errors_0=0,q_errors_9=0,q_opackets_14=0,q_ibytes_3=0,q_ibytes_15=0,q_ipackets_13=0,q_ipackets_14=0,q_obytes_3=0,q_errors_13=0,q_opackets_3=0,q_ibytes_0=7092,q_ibytes_2=0,q_ibytes_8=0,q_ipackets_8=0,q_ipackets_10=0,q_obytes_4=0,q_ibytes_10=0,q_ibytes_13=0,q_ibytes_1=0,q_ibytes_12=0,opackets=0,q_obytes_1=0,q_errors_15=0,q_opackets_2=0,oerrors=0,rx_nombuf=0,q_opackets_8=0,q_ibytes_11=0,q_ipackets_3=0,q_obytes_0=0,q_obytes_12=0,q_obytes_11=0,q_obytes_13=0,q_errors_6=0,q_ipackets_1=0,q_ipackets_6=0,q_ipackets_9=0,q_obytes_15=0,q_opackets_7=0,q_ibytes_14=0,ipackets=98,q_ipackets_2=0,q_opackets_6=0,q_ibytes_7=0,imissed=0,q_opackets_4=0,q_opackets_9=0,q_obytes_8=0,q_obytes_9=0,q_errors_4=0,q_errors_14=0,q_opackets_13=0,ibytes=7092,q_ipackets_0=98,q_errors_2=0,q_errors_7=0 1606310780000000000
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dpdk,command=/ethdev/xstats,dpdk_instance=l3fwd-power,host=dpdk-host,params=0 out_octets_encrypted=0,rx_fcoe_mbuf_allocation_errors=0,tx_q1packets=0,rx_priority0_xoff_packets=0,rx_priority7_xoff_packets=0,rx_errors=0,mac_remote_errors=0,in_pkts_invalid=0,tx_priority3_xoff_packets=0,tx_errors=0,rx_fcoe_bytes=0,rx_flow_control_xon_packets=0,rx_priority4_xoff_packets=0,tx_priority2_xoff_packets=0,rx_illegal_byte_errors=0,rx_xoff_packets=0,rx_management_packets=0,rx_priority7_dropped=0,rx_priority4_dropped=0,in_pkts_unchecked=0,rx_error_bytes=0,rx_size_256_to_511_packets=0,tx_priority4_xoff_packets=0,rx_priority6_xon_packets=0,tx_priority4_xon_to_xoff_packets=0,in_pkts_delayed=0,rx_priority0_mbuf_allocation_errors=0,out_octets_protected=0,tx_priority7_xon_to_xoff_packets=0,tx_priority1_xon_to_xoff_packets=0,rx_fcoe_no_direct_data_placement_ext_buff=0,tx_priority6_xon_to_xoff_packets=0,flow_director_filter_add_errors=0,rx_total_packets=99,rx_crc_errors=0,flow_director_filter_remove_errors=0,rx_missed_errors=0,tx_size_64_packets=0,rx_priority3_dropped=0,flow_director_matched_filters=0,tx_priority2_xon_to_xoff_packets=0,rx_priority1_xon_packets=0,rx_size_65_to_127_packets=99,rx_fragment_errors=0,in_pkts_notusingsa=0,rx_q0bytes=7162,rx_fcoe_dropped=0,rx_priority1_dropped=0,rx_fcoe_packets=0,rx_priority5_xoff_packets=0,out_pkts_protected=0,tx_total_packets=0,rx_priority2_dropped=0,in_pkts_late=0,tx_q1bytes=0,in_pkts_badtag=0,rx_multicast_packets=99,rx_priority6_xoff_packets=0,tx_flow_control_xoff_packets=0,rx_flow_control_xoff_packets=0,rx_priority0_xon_packets=0,in_pkts_untagged=0,tx_fcoe_packets=0,rx_priority7_mbuf_allocation_errors=0,tx_priority0_xon_to_xoff_packets=0,tx_priority5_xon_to_xoff_packets=0,tx_flow_control_xon_packets=0,tx_q0packets=0,tx_xoff_packets=0,rx_size_512_to_1023_packets=0,rx_priority3_xon_packets=0,rx_q0errors=0,rx_oversize_errors=0,tx_priority4_xon_packets=0,tx_priority5_xoff_packets=0,rx_priority5_xon_packets=0,rx_total_missed_packets=0,rx_priority4_mbuf_allocation_errors=0,tx_priority1_xon_packets=0,tx_management_packets=0,rx_priority5_mbuf_allocation_errors=0,rx_fcoe_no_direct_data_placement=0,rx_undersize_errors=0,tx_priority1_xoff_packets=0,rx_q0packets=99,tx_q2packets=0,tx_priority6_xon_packets=0,rx_good_packets=99,tx_priority5_xon_packets=0,tx_size_256_to_511_packets=0,rx_priority6_dropped=0,rx_broadcast_packets=0,tx_size_512_to_1023_packets=0,tx_priority3_xon_to_xoff_packets=0,in_pkts_unknownsci=0,in_octets_validated=0,tx_priority6_xoff_packets=0,tx_priority7_xoff_packets=0,rx_jabber_errors=0,tx_priority7_xon_packets=0,tx_priority0_xon_packets=0,in_pkts_unusedsa=0,tx_priority0_xoff_packets=0,mac_local_errors=33,rx_total_bytes=7162,in_pkts_notvalid=0,rx_length_errors=0,in_octets_decrypted=0,rx_size_128_to_255_packets=0,rx_good_bytes=7162,tx_size_65_to_127_packets=0,rx_mac_short_packet_dropped=0,tx_size_1024_to_max_packets=0,rx_priority2_mbuf_allocation_errors=0,flow_director_added_filters=0,tx_multicast_packets=0,rx_fcoe_crc_errors=0,rx_priority1_xoff_packets=0,flow_director_missed_filters=0,rx_xon_packets=0,tx_size_128_to_255_packets=0,out_pkts_encrypted=0,rx_priority4_xon_packets=0,rx_priority0_dropped=0,rx_size_1024_to_max_packets=0,tx_good_bytes=0,rx_management_dropped=0,rx_mbuf_allocation_errors=0,tx_xon_packets=0,rx_priority3_xoff_packets=0,tx_good_packets=0,tx_fcoe_bytes=0,rx_priority6_mbuf_allocation_errors=0,rx_priority2_xon_packets=0,tx_broadcast_packets=0,tx_q2bytes=0,rx_priority7_xon_packets=0,out_pkts_untagged=0,rx_priority2_xoff_packets=0,rx_priority1_mbuf_allocation_errors=0,tx_q0bytes=0,rx_size_64_packets=0,rx_priority5_dropped=0,tx_priority2_xon_packets=0,in_pkts_nosci=0,flow_director_removed_filters=0,in_pkts_ok=0,rx_l3_l4_xsum_error=0,rx_priority3_mbuf_allocation_errors=0,tx_priority3_xon_packets=0 1606310780000000000
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dpdk,command=/ethdev/xstats,dpdk_instance=l3fwd-power,host=dpdk-host,params=1 tx_priority5_xoff_packets=0,in_pkts_unknownsci=0,tx_q0packets=0,tx_total_packets=0,rx_crc_errors=0,rx_priority4_xoff_packets=0,rx_priority5_dropped=0,tx_size_65_to_127_packets=0,rx_good_packets=98,tx_priority6_xoff_packets=0,tx_fcoe_bytes=0,out_octets_protected=0,out_pkts_encrypted=0,rx_priority1_xon_packets=0,tx_size_128_to_255_packets=0,rx_flow_control_xoff_packets=0,rx_priority7_xoff_packets=0,tx_priority0_xon_to_xoff_packets=0,rx_broadcast_packets=0,tx_priority1_xon_packets=0,rx_xon_packets=0,rx_fragment_errors=0,tx_flow_control_xoff_packets=0,tx_q0bytes=0,out_pkts_untagged=0,rx_priority4_xon_packets=0,tx_priority5_xon_packets=0,rx_priority1_xoff_packets=0,rx_good_bytes=7092,rx_priority4_mbuf_allocation_errors=0,in_octets_decrypted=0,tx_priority2_xon_to_xoff_packets=0,rx_priority3_dropped=0,tx_multicast_packets=0,mac_local_errors=33,in_pkts_ok=0,rx_illegal_byte_errors=0,rx_xoff_packets=0,rx_q0errors=0,flow_director_added_filters=0,rx_size_256_to_511_packets=0,rx_priority3_xon_packets=0,rx_l3_l4_xsum_error=0,rx_priority6_dropped=0,in_pkts_notvalid=0,rx_size_64_packets=0,tx_management_packets=0,rx_length_errors=0,tx_priority7_xon_to_xoff_packets=0,rx_mbuf_allocation_errors=0,rx_missed_errors=0,rx_priority1_mbuf_allocation_errors=0,rx_fcoe_no_direct_data_placement=0,tx_priority3_xoff_packets=0,in_pkts_delayed=0,tx_errors=0,rx_size_512_to_1023_packets=0,tx_priority4_xon_packets=0,rx_q0bytes=7092,in_pkts_unchecked=0,tx_size_512_to_1023_packets=0,rx_fcoe_packets=0,in_pkts_nosci=0,rx_priority6_mbuf_allocation_errors=0,rx_priority1_dropped=0,tx_q2packets=0,rx_priority7_dropped=0,tx_size_1024_to_max_packets=0,rx_management_packets=0,rx_multicast_packets=98,rx_total_bytes=7092,mac_remote_errors=0,tx_priority3_xon_packets=0,rx_priority2_mbuf_allocation_errors=0,rx_priority5_mbuf_allocation_errors=0,tx_q2bytes=0,rx_size_128_to_255_packets=0,in_pkts_badtag=0,out_pkts_protected=0,rx_management_dropped=0,rx_fcoe_bytes=0,flow_director_removed_filters=0,tx_priority2_xoff_packets=0,rx_fcoe_crc_errors=0,rx_priority0_mbuf_allocation_errors=0,rx_priority0_xon_packets=0,rx_fcoe_dropped=0,tx_priority1_xon_to_xoff_packets=0,rx_size_65_to_127_packets=98,rx_q0packets=98,tx_priority0_xoff_packets=0,rx_priority6_xon_packets=0,rx_total_packets=98,rx_undersize_errors=0,flow_director_missed_filters=0,rx_jabber_errors=0,in_pkts_invalid=0,in_pkts_late=0,rx_priority5_xon_packets=0,tx_priority4_xoff_packets=0,out_octets_encrypted=0,tx_q1packets=0,rx_priority5_xoff_packets=0,rx_priority6_xoff_packets=0,rx_errors=0,in_octets_validated=0,rx_priority3_xoff_packets=0,tx_priority4_xon_to_xoff_packets=0,tx_priority5_xon_to_xoff_packets=0,tx_flow_control_xon_packets=0,rx_priority0_dropped=0,flow_director_filter_add_errors=0,tx_q1bytes=0,tx_priority6_xon_to_xoff_packets=0,flow_director_matched_filters=0,tx_priority2_xon_packets=0,rx_fcoe_mbuf_allocation_errors=0,rx_priority2_xoff_packets=0,tx_priority7_xoff_packets=0,rx_priority0_xoff_packets=0,rx_oversize_errors=0,in_pkts_notusingsa=0,tx_size_64_packets=0,rx_size_1024_to_max_packets=0,tx_priority6_xon_packets=0,rx_priority2_dropped=0,rx_priority4_dropped=0,rx_priority7_mbuf_allocation_errors=0,rx_flow_control_xon_packets=0,tx_good_bytes=0,tx_priority3_xon_to_xoff_packets=0,rx_total_missed_packets=0,rx_error_bytes=0,tx_priority7_xon_packets=0,rx_mac_short_packet_dropped=0,tx_priority1_xoff_packets=0,tx_good_packets=0,tx_broadcast_packets=0,tx_xon_packets=0,in_pkts_unusedsa=0,rx_priority2_xon_packets=0,in_pkts_untagged=0,tx_fcoe_packets=0,flow_director_filter_remove_errors=0,rx_priority3_mbuf_allocation_errors=0,tx_priority0_xon_packets=0,rx_priority7_xon_packets=0,rx_fcoe_no_direct_data_placement_ext_buff=0,tx_xoff_packets=0,tx_size_256_to_511_packets=0 1606310780000000000
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dpdk,command=/ethdev/link_status,dpdk_instance=l3fwd-power,host=dpdk-host,params=0 status="UP",speed=10000,duplex="full-duplex" 1606310780000000000
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dpdk,command=/ethdev/link_status,dpdk_instance=l3fwd-power,host=dpdk-host,params=1 status="UP",speed=10000,duplex="full-duplex" 1606310780000000000
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dpdk,command=/l3fwd-power/stats,dpdk_instance=l3fwd-power,host=dpdk-host empty_poll=49506395979901,full_poll=0,busy_percent=0 1606310780000000000
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```
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