From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
Calculating the median packet based on the current median + size / 2
does not account for last packet could smaller e.g. opp transfer could
end with just 1 byte which would cut the median in a half, so this
switch to more traditional means of calculating by doing total bytes
sent / num of packets so each an every packet has the same weight.
---
monitor/analyze.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/monitor/analyze.c b/monitor/analyze.c
index 839c2f7e9..5e0957ad1 100644
--- a/monitor/analyze.c
+++ b/monitor/analyze.c
@@ -61,6 +61,7 @@ struct hci_conn {
unsigned long rx_num;
unsigned long tx_num;
unsigned long tx_num_comp;
+ size_t tx_bytes;
struct timeval last_tx;
struct timeval last_tx_comp;
struct timeval tx_lat_min;
@@ -99,6 +100,8 @@ static void conn_destroy(void *data)
break;
}
+ conn->tx_pkt_med = conn->tx_bytes / conn->tx_num;
+
printf(" Found %s connection with handle %u\n", str, conn->handle);
printf(" BD_ADDR %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
conn->bdaddr[5], conn->bdaddr[4], conn->bdaddr[3],
@@ -485,16 +488,12 @@ static void acl_pkt(struct timeval *tv, uint16_t index, bool out,
if (out) {
conn->tx_num++;
conn->last_tx = *tv;
+ conn->tx_bytes += size;
if (!conn->tx_pkt_min || size < conn->tx_pkt_min)
conn->tx_pkt_min = size;
if (!conn->tx_pkt_max || size > conn->tx_pkt_max)
conn->tx_pkt_max = size;
- if (conn->tx_pkt_med) {
- conn->tx_pkt_med += (size + 1);
- conn->tx_pkt_med /= 2;
- } else
- conn->tx_pkt_med = size;
} else {
conn->rx_num++;
}
--
2.31.1
