2 // Copyright (c) 2010-2017 Intel Corporation
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
8 // http://www.apache.org/licenses/LICENSE-2.0
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
18 #include "display_latency.h"
19 #include "stats_latency.h"
22 static struct display_column *min_col;
23 static struct display_column *max_col;
24 static struct display_column *avg_col;
25 static struct display_column *stddev_col;
26 static struct display_column *accuracy_limit_col;
27 static struct display_column *used_col;
28 static struct display_column *lost_col;
29 static struct display_page display_page_latency;
31 static void display_latency_draw_frame(struct screen_state *screen_state)
33 const uint32_t n_latency = stats_get_n_latency();
34 struct display_column *core_col;
35 struct display_column *port_col;
37 display_page_init(&display_page_latency);
39 struct display_table *core = display_page_add_table(&display_page_latency);
40 struct display_table *port = display_page_add_table(&display_page_latency);
41 struct display_table *lat = display_page_add_table(&display_page_latency);
42 struct display_table *acc = display_page_add_table(&display_page_latency);
43 struct display_table *other = display_page_add_table(&display_page_latency);
45 display_table_init(core, "Core");
46 core_col = display_table_add_col(core);
47 display_column_init(core_col, "Nb", 4);
49 display_table_init(port, "Port Nb");
50 port_col = display_table_add_col(port);
51 display_column_init(port_col, "RX", 8);
53 if (screen_state->toggle == 0)
54 display_table_init(lat, "Measured Latency per interval");
56 display_table_init(lat, "Measured Latency since reset");
58 min_col = display_table_add_col(lat);
59 display_column_init(min_col, "Min (us)", 20);
60 max_col = display_table_add_col(lat);
61 display_column_init(max_col, "Max (us)", 20);
62 avg_col = display_table_add_col(lat);
63 display_column_init(avg_col, "Avg (us)", 20);
64 stddev_col = display_table_add_col(lat);
65 display_column_init(stddev_col, "Stddev (us)", 20);
67 display_table_init(acc, "Accuracy ");
68 used_col = display_table_add_col(acc);
69 display_column_init(used_col, "Used Packets (%)", 16);
70 accuracy_limit_col = display_table_add_col(acc);
71 display_column_init(accuracy_limit_col, "limit (us)", 16);
73 display_table_init(other, "Other");
75 lost_col = display_table_add_col(other);
76 display_column_init(lost_col, "Lost Packets", 16);
78 display_page_draw_frame(&display_page_latency, n_latency);
80 for (uint16_t i = 0; i < n_latency; ++i) {
81 uint32_t lcore_id = stats_latency_get_core_id(i);
82 uint32_t task_id = stats_latency_get_task_id(i);
83 struct task_args *targ = &lcore_cfg[lcore_id].targs[task_id];
85 display_column_print(core_col, i, "%2u/%1u", lcore_id, task_id);
86 display_column_port_ring(port_col, i, targ->rx_port_queue, targ->nb_rxports, targ->rx_rings, targ->nb_rxrings);
90 #define AFTER_POINT 1000000
92 static void display_stats_latency_entry(int row, struct stats_latency *stats_latency)
94 struct time_unit_err avg = stats_latency->avg;
95 struct time_unit_err min = stats_latency->min;
96 struct time_unit_err max = stats_latency->max;
97 struct time_unit_err stddev = stats_latency->stddev;
98 struct time_unit accuracy_limit = stats_latency->accuracy_limit;
102 if (stats_latency->tot_all_packets)
103 used = stats_latency->tot_packets * (100 * AFTER_POINT) / stats_latency->tot_all_packets;
107 if (stats_latency->tot_packets) {
108 display_column_print(min_col, row, "%s", print_time_unit_err_usec(dst, &min));
109 display_column_print(max_col, row, "%s", print_time_unit_err_usec(dst, &max));
110 display_column_print(avg_col, row, "%s", print_time_unit_err_usec(dst, &avg));
111 display_column_print(stddev_col, row, "%s", print_time_unit_err_usec(dst, &stddev));
113 display_column_print(min_col, row, "%s", "N/A");
114 display_column_print(max_col, row, "%s", "N/A");
115 display_column_print(avg_col, row, "%s", "N/A");
116 display_column_print(stddev_col, row, "%s", "N/A");
119 display_column_print(accuracy_limit_col, row, "%s", print_time_unit_usec(dst, &accuracy_limit));
120 display_column_print(lost_col, row, "%16"PRIu64"", stats_latency->lost_packets);
121 display_column_print(used_col, row, "%3u.%06u", used / AFTER_POINT, used % AFTER_POINT);
124 static void display_latency_draw_stats(struct screen_state *screen_state)
126 const uint32_t n_latency = stats_get_n_latency();
127 struct stats_latency *stats_latency;
129 for (uint16_t i = 0; i < n_latency; ++i) {
130 if (screen_state->toggle == 0)
131 stats_latency = stats_latency_get(i);
133 stats_latency = stats_latency_tot_get(i);
135 display_stats_latency_entry(i, stats_latency);
139 static int display_latency_get_height(void)
141 return stats_get_n_latency();
144 static struct display_screen display_screen_latency = {
145 .draw_frame = display_latency_draw_frame,
146 .draw_stats = display_latency_draw_stats,
147 .get_height = display_latency_get_height,
151 struct display_screen *display_latency(void)
153 return &display_screen_latency;