From: Luiz Augusto von Dentz <[email protected]>
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(-)
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);
}
}
--
2.41.0
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=770289
---Test result---
Test Summary:
CheckPatch FAIL 0.70 seconds
GitLint PASS 0.23 seconds
BuildEll PASS 33.67 seconds
BluezMake PASS 1173.46 seconds
MakeCheck PASS 12.92 seconds
MakeDistcheck PASS 195.13 seconds
CheckValgrind PASS 314.79 seconds
CheckSmatch PASS 438.72 seconds
bluezmakeextell PASS 130.61 seconds
IncrementalBuild PASS 971.95 seconds
ScanBuild PASS 1402.53 seconds
Details
##############################
Test: CheckPatch - FAIL
Desc: Run checkpatch.pl script
Output:
[BlueZ,v3] 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/13330735.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/13330735.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.
---
Regards,
Linux Bluetooth