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authorXavier Simonart <simonartxavier@gmail.com>2021-12-30 10:24:15 +0000
committerXavier Simonart <simonartxavier@gmail.com>2022-01-03 15:10:00 +0000
commit971d163b345ab3f74d6a5252722371dc17a8fe7a (patch)
treef9103fac18a5ef0fc9e99638d5abc26f08bb9a82 /LICENSE
parentba5ffcd0031bdf1f4781d9dcf224b5cb75aee922 (diff)
Add support for detection of misordered packets per flow
Only flows from ranges are supported so far. This means that flows generated through randoms are not supported yet. Misordered packets can now be detected per flow. flow definition is hard-coded as 5 tuple (proto, ip/udp src/dst). The generator writes flow_id and packet_id within the packets (4 + 5 bytes). This means that, if all latency, packet_id, signature, accuracy, flow_id and packet_id_in_flow parameters are set, the minimum packet size is 72 bytes. This feature is enabled through the following parameters: On the gen side: - packet id in flow pos: position (5 bytes) for packet id - flow id pos: flow id pos (4 bytes) On the lat side - flow_count: the number of flows received by the latency core. If not enough flows are configured, then an error message is displayed (once) and packet_reordering count is only measured for those flows - packet id in flow pos: position (5 bytes) for packet id - flow id pos: flow id pos (4 bytes) Misordered packets (and extent) are reported per core as before. No change related to duplicate packets (not measured per flow as a duplicate packet is not per flow...). Signed-off-by: Xavier Simonart <simonartxavier@gmail.com> Change-Id: I07517df87dfebec81408baf1decb647d9a0edd94
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