diff options
| author | Ido Schimmel <[email protected]> | 2021-03-11 14:24:16 +0200 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2021-03-11 16:22:39 -0800 |
| commit | cf31190ae0b788159a9874f0b28bbfde994741cd (patch) | |
| tree | a06fea40c1ae27e95fe78d2cade39419aa68680b /tools/perf/scripts/python/stackcollapse.py | |
| parent | 34a277212c67a395b47b715aa89c4b4e2c957d42 (diff) | |
mlxsw: spectrum_matchall: Implement sampling using mirroring
Spectrum-2 and later ASICs support sampling of packets by mirroring to
the CPU with probability. There are several advantages compared to the
legacy dedicated sampling mechanism:
* Extra metadata per-packet: Egress port, egress traffic class, traffic
class occupancy and end-to-end latency
* Ability to sample packets on egress / per-flow
Convert Spectrum-2 and later ASICs to perform sampling by mirroring to
the CPU with probability.
Subsequent patches will add support for egress / per-flow sampling and
expose the extra metadata.
Signed-off-by: Ido Schimmel <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions