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add stream-delay-calculation config

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This commit is contained in:
Christian Giese
2024-01-15 21:21:35 +00:00
parent 964739e1c4
commit d17ecabb23
5 changed files with 41 additions and 20 deletions
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code/bngblaster/src/bbl_config.c
+6 -1
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@@ -3343,7 +3343,8 @@ json_parse_config(json_t *root)
const char *schema[] = {
"autostart", "stop-verified", "max-burst",
"stream-rate-calculation"
"stream-rate-calculation",
"stream-delay-calculation"
};
if(!schema_validate(section, "traffic", schema,
sizeof(schema)/sizeof(schema[0]))) {
@@ -3366,6 +3367,10 @@ json_parse_config(json_t *root)
if(value) {
g_ctx->config.stream_rate_calc = json_boolean_value(value);
}
JSON_OBJ_GET_BOOL(section, value, "traffic", "stream-delay-calculation");
if(value) {
g_ctx->config.stream_delay_calc = json_boolean_value(value);
}
}
/* Session Traffic Configuration */
code/bngblaster/src/bbl_ctx.h
+2
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@@ -338,6 +338,8 @@ typedef struct bbl_ctx_
bool traffic_autostart;
bool traffic_stop_verified;
bool stream_rate_calc; /* Enable/disable stream rate calculation */
bool stream_delay_calc; /* Enable/disable stream delay calculation */
uint8_t stream_max_burst; /* Limit the max packets per TX interval */
/* Session Traffic */
code/bngblaster/src/bbl_stream.c
+3 -1
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@@ -2296,7 +2296,9 @@ bbl_stream_rx(bbl_ethernet_header_s *eth, bbl_session_s *session)
stream->rx_packets++;
stream->rx_last_seq = bbl->flow_seq;
stream->rx_last_epoch = eth->timestamp.tv_sec;
bbl_stream_delay(stream, &eth->timestamp, &bbl->timestamp);
if(g_ctx->config.stream_delay_calc) {
bbl_stream_delay(stream, &eth->timestamp, &bbl->timestamp);
}
return stream;
} else {
return NULL;
docsrc/sources/configuration/traffic.rst
+24 -18
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@@ -2,21 +2,27 @@
{ "traffic": {} }
+-----------------------------+--------------------------------------------------------+
| Attribute | Description |
+=============================+========================================================+
| **autostart** | | Automatically start traffic. |
| | | Default: true |
+-----------------------------+--------------------------------------------------------+
| **stop-verified** | | Automatically stop traffic streams if verified. |
| | | Default: false |
+-----------------------------+--------------------------------------------------------+
| **max-burst** | | Stream flow burst size in packets. |
| | | Default: 16 |
+-----------------------------+--------------------------------------------------------+
| **stream-rate-calculation** | | Enable stream rate calculation. |
| | | This option should be set to false if massive |
| | | streams (e.g. more than 1M) are defined but |
| | | per-stream live rate statistics are not required. |
| | | Default: true |
+-----------------------------+--------------------------------------------------------+
+------------------------------+--------------------------------------------------------+
| Attribute | Description |
+==============================+========================================================+
| **autostart** | | Automatically start traffic. |
| | | Default: true |
+------------------------------+--------------------------------------------------------+
| **stop-verified** | | Automatically stop traffic streams if verified. |
| | | Default: false |
+------------------------------+--------------------------------------------------------+
| **max-burst** | | Stream flow burst size in packets. |
| | | Default: 16 |
+------------------------------+--------------------------------------------------------+
| **stream-rate-calculation** | | Enable stream rate calculation. |
| | | This option should be set to false if massive |
| | | streams (e.g. more than 1M) are defined but |
| | | per-stream live rate statistics are not required. |
| | | Default: true |
+------------------------------+--------------------------------------------------------+
| **stream-delay-calculation** | | Enable stream delay calculation. |
| | | This option should be set to false if massive |
| | | streams (e.g. more than 1M) are defined but |
| | | per-stream delay measurements are not required. |
| | | Default: true |
+------------------------------+--------------------------------------------------------+
docsrc/sources/nat.rst
+6
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@@ -363,6 +363,12 @@ which is typically not needed for millions of streams.
All traffic stats are still working but the live rate is not calculated.
It is also possible to disable the stream delay calcualtion if not needed.
.. code-block:: json
{ "traffic": { "stream-delay-calculation": false } }
Another option is to setup the traffic streams with a rate of 0.1 PPS,
meaning one packet every 10 seconds. This is enough to keep NAT translation
active but allows 1M streams with only 100K PPS.