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diff --git a/examples/cmd/stats-api/README.md b/examples/cmd/stats-api/README.md new file mode 100644 index 0000000..44a1663 --- /dev/null +++ b/examples/cmd/stats-api/README.md @@ -0,0 +1,68 @@ +# Stats API Example + +This example demonstrates how to retrieve statistics from VPP using [the new Stats API](https://github.com/FDio/vpp/blob/master/src/vpp/stats/stats.md). + +## Requirements + +The following requirements are required to run this example: + +- install **VPP 18.10+** +- enable stats in VPP: + + ```sh + statseg { + default + } + ``` + > The [default socket](https://wiki.fd.io/view/VPP/Command-line_Arguments#.22statseg.22_parameters) is located at `/run/vpp/stats.sock`. +- run the VPP, ideally with some traffic + +## Running example + +First build the example: `go build git.fd.io/govpp.git/examples/cmd/stats-api`. + +Use commands `ls` and `dump` to list and dump statistics. Optionally, patterns can be used to filter the results. + +### List stats matching patterns `/sys/` and `/if/` +``` +$ ./stats-api ls /sys/ /if/ +Listing stats.. /sys/ /if/ + - /sys/vector_rate + - /sys/input_rate + - /sys/last_update + - /sys/last_stats_clear + - /sys/heartbeat + - /sys/node/clocks + - /sys/node/vectors + - /sys/node/calls + - /sys/node/suspends + - /if/drops + - /if/punt + - /if/ip4 + - /if/ip6 + - /if/rx-no-buf + - /if/rx-miss + - /if/rx-error + - /if/tx-error + - /if/rx + - /if/rx-unicast + - /if/rx-multicast + - /if/rx-broadcast + - /if/tx + - /if/tx-unicast-miss + - /if/tx-multicast + - /if/tx-broadcast +Listed 25 stats +``` + +### Dump all stats with their types and values +``` +$ ./stats-api dump +Dumping stats.. + - /sys/last_update ScalarIndex 10408 + - /sys/heartbeat ScalarIndex 1041 + - /err/ip4-icmp-error/unknown type ErrorIndex 5 + - /net/route/to CombinedCounterVector [[{Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:5 Bytes:420}]] + - /if/drops SimpleCounterVector [[0 5 5]] +Dumped 5 (2798) stats +``` |