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Commit 8741fedf3ffa30b83f7119998c0f8faa578a881f
Parents : e6aa9ae
Author : Mark Qvist <mark@unsigned.io>
Date : 2024-05-22T20:13:30+02:00
Added concurrent call stat to call spec simulator
Changes
Diff
diff --git a/docs/utilities/rns_audio_call_calc.py b/docs/utilities/rns_audio_call_calc.py
index 9c9fd81f..61bbfffe 100644
--- a/docs/utilities/rns_audio_call_calc.py
+++ b/docs/utilities/rns_audio_call_calc.py
@@ -14,7 +14,7 @@ def simulate(link_speed=9600, audio_slot_ms=70, codec_rate=1200, method="msgpack
TARGET_MS = audio_slot_ms
# Packets needed per second for half-duplex audio
- PACKET_PER_SECOND = 1000/TARGET_MS
+ PACKETS_PER_SECOND = 1000/TARGET_MS
# Effective audio encoder bitrate
CODEC_RATE = codec_rate
@@ -64,8 +64,12 @@ def simulate(link_speed=9600, audio_slot_ms=70, codec_rate=1200, method="msgpack
# TODO: This should include any additional
# airtime consumption such as preamble and TX-tail.
- PACKET_AIRTIME = round(PACKET_LEN*PER_BYTE_LATENCY_MS, 1)
- AIRTIME_PCT = round( (PACKET_AIRTIME/TARGET_MS) * 100, 1)
+ PACKET_AIRTIME = PACKET_LEN*PER_BYTE_LATENCY_MS
+ AIRTIME_PCT = (PACKET_AIRTIME/TARGET_MS) * 100
+
+ # Maximum amount of concurrent full-duplex
+ # calls that can coexist on the same channel
+ CONCURRENT_CALLS = math.floor(100/AIRTIME_PCT)
# Calculate latencies
TRANSPORT_LATENCY = round((PHY_OVERHEAD+RNS_OVERHEAD)*PER_BYTE_LATENCY_MS, 1)
@@ -83,7 +87,7 @@ def simulate(link_speed=9600, audio_slot_ms=70, codec_rate=1200, method="msgpack
TOTAL_LATENCY = round(TARGET_MS+PACKET_LATENCY, 1)
- print( "\n === Simulation Parameters ===")
+ print( "\n===== Simulation Parameters ===\n")
print(f" Packing method : {method}")
print(f" Sampling delay : {TARGET_MS}ms")
print(f" Codec bitrate : {CODEC_RATE} bps")
@@ -96,7 +100,7 @@ def simulate(link_speed=9600, audio_slot_ms=70, codec_rate=1200, method="msgpack
print(f" On-air length : {PACKET_LEN} bytes")
print(f" Packet airtime : {PACKET_AIRTIME}ms")
- print( "\n === Results for "+RNS.prettyspeed(LINK_SPEED)+" Link Speed ===")
+ print( "\n===== Results for "+RNS.prettyspeed(LINK_SPEED)+" Link Speed ===\n")
print(f" Final latency : {TOTAL_LATENCY}ms")
print(f" Recording latency : contributes {TARGET_MS}ms")
print(f" Packet transport : contributes {PACKET_LATENCY}ms")
@@ -106,8 +110,10 @@ def simulate(link_speed=9600, audio_slot_ms=70, codec_rate=1200, method="msgpack
print(f" Encryption : contributes {ENCRYPTION_LATENCY}ms {E_OPT_STR}")
print(f" RNS+PHY overhead : contributes {TRANSPORT_LATENCY}ms")
print(f"")
- print(f" Half-duplex airtime : {AIRTIME_PCT}% of link capacity")
- print(f" Full-duplex airtime : {AIRTIME_PCT*2}% of link capacity")
+ print(f" Half-duplex airtime : {round(AIRTIME_PCT, 2)}% of link capacity")
+ print(f" Concurrent calls : {int(CONCURRENT_CALLS)}\n")
+ print(f" Full-duplex airtime : {round(AIRTIME_PCT*2, 2)}% of link capacity")
+ print(f" Concurrent calls : {int(CONCURRENT_CALLS/2)}")
if BLOCK_HEADROOM != 0:
print("")
@@ -119,5 +125,5 @@ def simulate(link_speed=9600, audio_slot_ms=70, codec_rate=1200, method="msgpack
print( "\n= With mspack =================")
simulate(method="msgpack")
-print("\n\n= With protobuf ===============")
-simulate(method="protobuf")
+#print("\n\n= With protobuf ===============")
+#simulate(method="protobuf")
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