To simplify interactive telemetry script for general use, i.e. not from
other scripts, we can add two new features to it:
1. Support for FOREACH to allow gathering a set of output values across
a list of ports or devices, e.g. ethdevs or rawdevs.
2. Support having predefined aliases in a file in the user's home
directory to simplify the use of more complicated FOREACH commands.
Putting these together, we can create new commands such as "eth_names".
bruce@host:$ cat ~/.dpdk_telemetry_aliases
eth_names=FOREACH index /ethdev/list /ethdev/info,$index .name
bruce@host:$ echo eth_names | ./usertools/dpdk-telemetry.py | jq
[
{
"index": 0,
"name": "0000:16:00.0"
},
{
"index": 1,
"name": "0000:16:00.1"
}
]
---
v3: updated based on review feedback from Chengwen:
- added arg to override alias file
- printed one-line summary of alias count loaded
- improved doc for "help" command
- added "help alias" to list aliases.
v2: added third patch with "help" command giving more details on
how to use the various commands.
Bruce Richardson (3):
usertools/telemetry: add a FOREACH command
usertools/telemetry: support using aliases for long commands
usertools/telemetry: add help support
doc/guides/howto/telemetry.rst | 106 ++++++++++++-
usertools/dpdk-telemetry.py | 278 ++++++++++++++++++++++++++++++++-
2 files changed, 373 insertions(+), 11 deletions(-)
--
2.53.0
