diff mbox series

[BlueZ,v4,1/3] monitor: Use gnuplot to plot graph of Latency-Packets

Message ID 20230728175937.42818-1-luiz.dentz@gmail.com
State New
Headers show
Series [BlueZ,v4,1/3] monitor: Use gnuplot to plot graph of Latency-Packets | expand

Commit Message

Luiz Augusto von Dentz July 28, 2023, 5:59 p.m. UTC
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

This make use of gnuplot when using -a/--analyze to plot a graph of
Latency-Packets:

  Found BR-ACL connection with handle 256
        Address: XX:XX:XX:XX:XX:XX (Sony Home Entertainment&Sound Products Inc)
        60 RX packets
        22548 TX packets
        22547 TX completed packets
        3 msec min latency
        73 msec max latency
        11 msec median latency
        6 octets TX min packet size
        850 octets TX max packet size
        847 octets TX median packet size

  10000 +------------------------------------------------------------------+
        |+      +                                                          |
        |+      |+                                         Packets +-----+ |
        |+      ||                                                         |
   1000 |-+    +||++                                                       |
        |+     |||||+ +                                                    |
        |+     ||||||+|                                                    |
        |+     ||||||||+                                                   |
        |+     |||||||||+++                                                |
    100 |-+    |||||||||||++++                                             |
        |+     ||||||||||||||| +                                           |
        |+     ||||||||||||||| ++                                          |
        |+ +   |||||||||||||||+||                                          |
     10 |-+|   ||||||||||||||||||+++                                       |
        |+ |   |||||||||||||||||||||                                       |
        |+ |   |||||||||||||||||||||  +                                    |
        |+ | ++|||||||||||||||||||||++|++++       +                        |
        |  | ||||||||||||||||||||||||||||||       |                        |
      1 |-+|+|||||||||||||||||||||||||||||| +  +  |       +        + +     |
        +------------------------------------------------------------------+
        0       10       20      30       40      50      60       70      80
                                   Latency (ms)
---
 monitor/analyze.c | 98 +++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 87 insertions(+), 11 deletions(-)

Comments

bluez.test.bot@gmail.com July 28, 2023, 7:33 p.m. UTC | #1
This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=770670

---Test result---

Test Summary:
CheckPatch                    FAIL      1.87 seconds
GitLint                       PASS      1.07 seconds
BuildEll                      PASS      27.21 seconds
BluezMake                     PASS      781.31 seconds
MakeCheck                     PASS      11.40 seconds
MakeDistcheck                 PASS      157.38 seconds
CheckValgrind                 PASS      251.09 seconds
CheckSmatch                   WARNING   339.62 seconds
bluezmakeextell               PASS      102.83 seconds
IncrementalBuild              PASS      1976.07 seconds
ScanBuild                     WARNING   1026.41 seconds

Details
##############################
Test: CheckPatch - FAIL
Desc: Run checkpatch.pl script
Output:
[BlueZ,v4,1/3] monitor: Use gnuplot to plot graph of Latency-Packets
WARNING:COMMIT_LOG_LONG_LINE: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#86: 
        Address: XX:XX:XX:XX:XX:XX (Sony Home Entertainment&Sound Products Inc)

/github/workspace/src/src/13332241.patch total: 0 errors, 1 warnings, 156 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

/github/workspace/src/src/13332241.patch has style problems, please review.

NOTE: Ignored message types: COMMIT_MESSAGE COMPLEX_MACRO CONST_STRUCT FILE_PATH_CHANGES MISSING_SIGN_OFF PREFER_PACKED SPDX_LICENSE_TAG SPLIT_STRING SSCANF_TO_KSTRTO

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.


[BlueZ,v4,2/3] monitor: Update documentation
ERROR:CODE_INDENT: code indent should use tabs where possible
#115: FILE: monitor/main.c:55:
+                "\t                       system it will also attempt to plot\n"$

WARNING:LEADING_SPACE: please, no spaces at the start of a line
#115: FILE: monitor/main.c:55:
+                "\t                       system it will also attempt to plot\n"$

/github/workspace/src/src/13332242.patch total: 1 errors, 1 warnings, 19 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

NOTE: Whitespace errors detected.
      You may wish to use scripts/cleanpatch or scripts/cleanfile

/github/workspace/src/src/13332242.patch has style problems, please review.

NOTE: Ignored message types: COMMIT_MESSAGE COMPLEX_MACRO CONST_STRUCT FILE_PATH_CHANGES MISSING_SIGN_OFF PREFER_PACKED SPDX_LICENSE_TAG SPLIT_STRING SSCANF_TO_KSTRTO

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.


##############################
Test: CheckSmatch - WARNING
Desc: Run smatch tool with source
Output:
monitor/l2cap.c: note: in included file:monitor/display.h:82:26: warning: Variable length array is used.monitor/packet.c: note: in included file:monitor/display.h:82:26: warning: Variable length array is used.monitor/packet.c:1832:26: warning: Variable length array is used.monitor/packet.c: note: in included file:monitor/bt.h:3551:52: warning: array of flexible structuresmonitor/bt.h:3539:40: warning: array of flexible structures
##############################
Test: ScanBuild - WARNING
Desc: Run Scan Build
Output:
monitor/l2cap.c:1638:4: warning: Value stored to 'data' is never read
                        data += len;
                        ^       ~~~
monitor/l2cap.c:1639:4: warning: Value stored to 'size' is never read
                        size -= len;
                        ^       ~~~
2 warnings generated.
monitor/packet.c:12373:2: warning: Null pointer passed to 2nd parameter expecting 'nonnull'
        memcpy(tx, tv, sizeof(*tv));
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.



---
Regards,
Linux Bluetooth
diff mbox series

Patch

diff --git a/monitor/analyze.c b/monitor/analyze.c
index a20ba98b0be4..29aee5ad1680 100644
--- a/monitor/analyze.c
+++ b/monitor/analyze.c
@@ -17,6 +17,7 @@ 
 #include <stdio.h>
 #include <string.h>
 #include <sys/time.h>
+#include <unistd.h>
 
 #include "lib/bluetooth.h"
 
@@ -28,6 +29,9 @@ 
 #include "monitor/packet.h"
 #include "monitor/analyze.h"
 
+#define TIMEVAL_MSEC(_tv) \
+	(long long)((_tv)->tv_sec * 1000 + (_tv)->tv_usec / 1000)
+
 struct hci_dev {
 	uint16_t index;
 	uint8_t type;
@@ -69,12 +73,18 @@  struct hci_conn {
 	struct timeval tx_lat_min;
 	struct timeval tx_lat_max;
 	struct timeval tx_lat_med;
+	struct queue *plot;
 	uint16_t tx_pkt_min;
 	uint16_t tx_pkt_max;
 	uint16_t tx_pkt_med;
 	struct queue *chan_list;
 };
 
+struct plot {
+	long long x_msec;
+	size_t y_count;
+};
+
 struct l2cap_chan {
 	uint16_t cid;
 	uint16_t psm;
@@ -135,6 +145,47 @@  static struct l2cap_chan *chan_lookup(struct hci_conn *conn, uint16_t cid,
 	return chan;
 }
 
+static void tmp_write(void *data, void *user_data)
+{
+	struct plot *plot = data;
+	FILE *tmp = user_data;
+
+	fprintf(tmp, "%lld %zu\n", plot->x_msec, plot->y_count);
+}
+
+static void plot_draw(struct queue *queue)
+{
+	const char *filename = "analyze.tmp";
+	FILE *gplot = popen("gnuplot", "w");
+	FILE *tmp;
+
+	if (!gplot)
+		return;
+
+	if (queue_isempty(queue))
+		goto done;
+
+	tmp = fopen(filename, "w");
+	if (!tmp)
+		goto done;
+
+	queue_foreach(queue, tmp_write, tmp);
+
+	fprintf(gplot, "set terminal dumb enhanced ansi\n");
+	fprintf(gplot, "set xlabel 'Latency (ms)'\n");
+	fprintf(gplot, "set tics nomirror\n");
+	fprintf(gplot, "set log y\n");
+	fprintf(gplot, "set yrange [0.5:*]\n");
+	fprintf(gplot, "plot './%s' using 1:2 t 'Packets' w impulses\n",
+								filename);
+	fflush(gplot);
+
+	fclose(tmp);
+done:
+	pclose(gplot);
+	unlink(filename);
+}
+
 static void conn_destroy(void *data)
 {
 	struct hci_conn *conn = data;
@@ -172,21 +223,17 @@  static void conn_destroy(void *data)
 	print_field("%lu RX packets", conn->rx_num);
 	print_field("%lu TX packets", conn->tx_num);
 	print_field("%lu TX completed packets", conn->tx_num_comp);
-	print_field("%lld msec min latency",
-			(long long)
-			(conn->tx_lat_min.tv_sec * 1000 +
-			conn->tx_lat_min.tv_usec / 1000));
-	print_field("%lld msec max latency",
-			(long long)
-			(conn->tx_lat_max.tv_sec * 1000 +
-			conn->tx_lat_max.tv_usec / 1000));
+	print_field("%lld msec min latency", TIMEVAL_MSEC(&conn->tx_lat_min));
+	print_field("%lld msec max latency", TIMEVAL_MSEC(&conn->tx_lat_max));
 	print_field("%lld msec median latency",
-			(long long)
-			(conn->tx_lat_med.tv_sec * 1000 +
-			conn->tx_lat_med.tv_usec / 1000));
+			TIMEVAL_MSEC(&conn->tx_lat_med));
 	print_field("%u octets TX min packet size", conn->tx_pkt_min);
 	print_field("%u octets TX max packet size", conn->tx_pkt_max);
 	print_field("%u octets TX median packet size", conn->tx_pkt_med);
+
+	plot_draw(conn->plot);
+
+	queue_destroy(conn->plot, free);
 	queue_destroy(conn->chan_list, chan_destroy);
 
 	queue_destroy(conn->tx_queue, free);
@@ -203,6 +250,7 @@  static struct hci_conn *conn_alloc(struct hci_dev *dev, uint16_t handle,
 	conn->handle = handle;
 	conn->type = type;
 	conn->tx_queue = queue_new();
+	conn->plot = queue_new();
 
 	conn->chan_list = queue_new();
 
@@ -447,6 +495,32 @@  static void evt_cmd_complete(struct hci_dev *dev, struct timeval *tv,
 	}
 }
 
+static bool match_plot_latency(const void *data, const void *user_data)
+{
+	const struct plot *plot = data;
+	const struct timeval *latency = user_data;
+
+	return TIMEVAL_MSEC(latency) == plot->x_msec;
+}
+
+static void plot_add(struct queue *queue, struct timeval *latency,
+						uint16_t count)
+{
+	struct plot *plot;
+
+	plot = queue_find(queue, match_plot_latency, latency);
+	if (plot) {
+		plot->y_count += count;
+		return;
+	}
+
+	plot = new0(struct plot, 1);
+	plot->x_msec = TIMEVAL_MSEC(latency);
+	plot->y_count = count;
+
+	queue_push_tail(queue, plot);
+}
+
 static void evt_num_completed_packets(struct hci_dev *dev, struct timeval *tv,
 					const void *data, uint16_t size)
 {
@@ -504,6 +578,8 @@  static void evt_num_completed_packets(struct hci_dev *dev, struct timeval *tv,
 			} else
 				conn->tx_lat_med = res;
 
+			plot_add(conn->plot, &res, count);
+
 			free(last_tx);
 		}
 	}