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Date: Tue, 10 Aug 2021 19:01:55 +0000 From: Nicholas Richardson <richardsonnick@...gle.com> To: davem@...emloft.net, kuba@...nel.org Cc: nrrichar@...u.edu, promanov@...gle.com, arunkaly@...gle.com, Nick Richardson <richardsonnick@...gle.com>, "Gustavo A. R. Silva" <gustavoars@...nel.org>, Leesoo Ahn <dev@...eel.net>, Di Zhu <zhudi21@...wei.com>, Ye Bin <yebin10@...wei.com>, Yejune Deng <yejune.deng@...il.com>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH v2 3/3] pktgen: Add output for imix results From: Nick Richardson <richardsonnick@...gle.com> The bps for imix mode is calculated by: sum(imix_entry.size) / time_elapsed The actual counts of each imix_entry are displayed under the "Current:" section of the interface output in the following format: imix_size_counts: size_1,count_1 size_2,count_2 ... size_n,count_n Example (count = 200000): imix_weights: 256,1 859,3 205,2 imix_size_counts: 256,32082 859,99796 205,68122 Result: OK: 17992362(c17964678+d27684) usec, 200000 (859byte,0frags) 11115pps 47Mb/sec (47977140bps) errors: 0 Summary of changes: Calculate bps based on imix counters when in IMIX mode. Add output for IMIX counters. Signed-off-by: Nick Richardson <richardsonnick@...gle.com> --- net/core/pktgen.c | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) diff --git a/net/core/pktgen.c b/net/core/pktgen.c index ac1de15000e2..7aca175e749b 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -695,6 +695,18 @@ static int pktgen_if_show(struct seq_file *seq, void *v) (unsigned long long)pkt_dev->sofar, (unsigned long long)pkt_dev->errors); + if (pkt_dev->n_imix_entries > 0) { + int i; + + seq_puts(seq, " imix_size_counts: "); + for (i = 0; i < pkt_dev->n_imix_entries; i++) { + seq_printf(seq, "%llu,%llu ", + pkt_dev->imix_entries[i].size, + pkt_dev->imix_entries[i].count_so_far); + } + seq_puts(seq, "\n"); + } + seq_printf(seq, " started: %lluus stopped: %lluus idle: %lluus\n", (unsigned long long) ktime_to_us(pkt_dev->started_at), @@ -3282,7 +3294,19 @@ static void show_results(struct pktgen_dev *pkt_dev, int nr_frags) pps = div64_u64(pkt_dev->sofar * NSEC_PER_SEC, ktime_to_ns(elapsed)); - bps = pps * 8 * pkt_dev->cur_pkt_size; + if (pkt_dev->n_imix_entries > 0) { + int i; + struct imix_pkt *entry; + + bps = 0; + for (i = 0; i < pkt_dev->n_imix_entries; i++) { + entry = &pkt_dev->imix_entries[i]; + bps += entry->size * entry->count_so_far; + } + bps = div64_u64(bps * 8 * NSEC_PER_SEC, ktime_to_ns(elapsed)); + } else { + bps = pps * 8 * pkt_dev->cur_pkt_size; + } mbps = bps; do_div(mbps, 1000000); -- 2.32.0.605.g8dce9f2422-goog
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