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| author | brakmo | 2019-05-29 01:59:40 +0200 |
|---|---|---|
| committer | Alexei Starovoitov | 2019-06-01 01:41:29 +0200 |
| commit | d58c6f7212f4eda59ca94cbfbaa785dde7675456 (patch) | |
| tree | 84c6e60b4f3ca303da138d79f55747c6222213eb /samples/bpf/hbm.c | |
| parent | bpf: Add cn support to hbm_out_kern.c (diff) | |
| download | kernel-qcow2-linux-d58c6f7212f4eda59ca94cbfbaa785dde7675456.tar.gz kernel-qcow2-linux-d58c6f7212f4eda59ca94cbfbaa785dde7675456.tar.xz kernel-qcow2-linux-d58c6f7212f4eda59ca94cbfbaa785dde7675456.zip | |
bpf: Add more stats to HBM
Adds more stats to HBM, including average cwnd and rtt of all TCP
flows, percents of packets that are ecn ce marked and distribution
of return values.
Signed-off-by: Lawrence Brakmo <brakmo@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'samples/bpf/hbm.c')
| -rw-r--r-- | samples/bpf/hbm.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/samples/bpf/hbm.c b/samples/bpf/hbm.c index c5629bae67ab..480b7ad6a1f2 100644 --- a/samples/bpf/hbm.c +++ b/samples/bpf/hbm.c @@ -316,6 +316,14 @@ static int run_bpf_prog(char *prog, int cg_id) double percent_pkts, percent_bytes; char fname[100]; FILE *fout; + int k; + static const char *returnValNames[] = { + "DROP_PKT", + "ALLOW_PKT", + "DROP_PKT_CWR", + "ALLOW_PKT_CWR" + }; +#define RET_VAL_COUNT 4 // Future support of ingress // if (!outFlag) @@ -350,6 +358,31 @@ static int run_bpf_prog(char *prog, int cg_id) (qstats.bytes_total + 1); fprintf(fout, "pkts_dropped_percent:%6.2f\n", percent_pkts); fprintf(fout, "bytes_dropped_percent:%6.2f\n", percent_bytes); + + // ECN CE markings + percent_pkts = (qstats.pkts_ecn_ce * 100.0) / + (qstats.pkts_total + 1); + fprintf(fout, "pkts_ecn_ce:%6.2f (%d)\n", percent_pkts, + (int)qstats.pkts_ecn_ce); + + // Average cwnd + fprintf(fout, "avg cwnd:%d\n", + (int)(qstats.sum_cwnd / (qstats.sum_cwnd_cnt + 1))); + // Average rtt + fprintf(fout, "avg rtt:%d\n", + (int)(qstats.sum_rtt / (qstats.pkts_total + 1))); + // Average credit + fprintf(fout, "avg credit:%d\n", + (int)(qstats.sum_credit / + (1500 * ((int)qstats.pkts_total) + 1))); + + // Return values stats + for (k = 0; k < RET_VAL_COUNT; k++) { + percent_pkts = (qstats.returnValCount[k] * 100.0) / + (qstats.pkts_total + 1); + fprintf(fout, "%s:%6.2f (%d)\n", returnValNames[k], + percent_pkts, (int)qstats.returnValCount[k]); + } fclose(fout); } |