source: test/test-format-parallel-stressthreads.c @ 6a082f8

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivelibtrace4ndag_formatpfringrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file since 6a082f8 was 6a082f8, checked in by Richard Sanger <rsangerarj@…>, 6 years ago

Move parallel API functions to libtrace_parallel.h

Also started the process of updating the documentation

  • Property mode set to 100644
File size: 6.5 KB
Line 
1/*
2 * This file is part of libtrace
3 *
4 * Copyright (c) 2007 The University of Waikato, Hamilton, New Zealand.
5 * Authors: Daniel Lawson
6 *          Perry Lorier
7 *         
8 * All rights reserved.
9 *
10 * This code has been developed by the University of Waikato WAND
11 * research group. For further information please see http://www.wand.net.nz/
12 *
13 * libtrace is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * libtrace is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with libtrace; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
26 *
27 * $Id: test-rtclient.c,v 1.2 2006/02/27 03:41:12 perry Exp $
28 *
29 */
30#ifndef WIN32
31#  include <sys/time.h>
32#  include <netinet/in.h>
33#  include <netinet/in_systm.h>
34#  include <netinet/tcp.h>
35#  include <netinet/ip.h>
36#  include <netinet/ip_icmp.h>
37#  include <arpa/inet.h>
38#  include <sys/socket.h>
39#endif
40#include <stdio.h>
41#include <stdlib.h>
42#include <assert.h>
43#include <string.h>
44#include <sys/types.h>
45#include <time.h>
46#include <string.h>
47#include <signal.h>
48#include <unistd.h>
49
50#include "dagformat.h"
51#include "libtrace_parallel.h"
52#include "data-struct/vector.h"
53
54void iferr(libtrace_t *trace,const char *msg)
55{
56        libtrace_err_t err = trace_get_err(trace);
57        if (err.err_num==0)
58                return;
59        printf("Error: %s: %s\n", msg, err.problem);
60        exit(1);
61}
62
63const char *lookup_uri(const char *type) {
64        if (strchr(type,':'))
65                return type;
66        if (!strcmp(type,"erf"))
67                return "erf:traces/100_packets.erf";
68        if (!strcmp(type,"rawerf"))
69                return "rawerf:traces/100_packets.erf";
70        if (!strcmp(type,"pcap"))
71                return "pcap:traces/100_packets.pcap";
72        if (!strcmp(type,"wtf"))
73                return "wtf:traces/wed.wtf";
74        if (!strcmp(type,"rtclient"))
75                return "rtclient:chasm";
76        if (!strcmp(type,"pcapfile"))
77                return "pcapfile:traces/100_packets.pcap";
78        if (!strcmp(type,"pcapfilens"))
79                return "pcapfile:traces/100_packetsns.pcap";
80        if (!strcmp(type, "duck"))
81                return "duck:traces/100_packets.duck";
82        if (!strcmp(type, "legacyatm"))
83                return "legacyatm:traces/legacyatm.gz";
84        if (!strcmp(type, "legacypos"))
85                return "legacypos:traces/legacypos.gz";
86        if (!strcmp(type, "legacyeth"))
87                return "legacyeth:traces/legacyeth.gz";
88        if (!strcmp(type, "tsh"))
89                return "tsh:traces/10_packets.tsh.gz";
90        return type;
91}
92
93
94struct TLS {
95        bool seen_start_message;
96        bool seen_stop_message;
97        bool seen_resuming_message;
98        bool seen_pausing_message;
99        int count;
100};
101
102static int totalpkts = 0;
103static void report_result(libtrace_t *trace UNUSED, int mesg,
104                          libtrace_generic_t data,
105                          libtrace_thread_t *sender UNUSED) {
106        static int totalthreads = 0;
107        switch (mesg) {
108        case MESSAGE_RESULT:
109                assert(libtrace_result_get_key(data.res) == 0);
110                printf("%d,", libtrace_result_get_value(data.res).sint);
111                totalthreads++;
112                totalpkts += libtrace_result_get_value(data.res).sint;
113                break;
114        case MESSAGE_STARTING:
115                // Should have a single thread here
116                assert(libtrace_get_perpkt_count(trace) == 100);
117                printf("\tLooks like %d threads are being used!\n\tcounts(", libtrace_get_perpkt_count(trace));
118                break;
119        case MESSAGE_STOPPING:
120                printf(")\n");
121                assert(totalthreads == libtrace_get_perpkt_count(trace));
122                break;
123        }
124}
125
126static int x;
127static void* per_packet(libtrace_t *trace, libtrace_thread_t *t,
128                        int mesg, libtrace_generic_t data,
129                        libtrace_thread_t *sender UNUSED) {
130        struct TLS *tls;
131        void* ret;
132        int a,*b,c=0;
133        tls = trace_get_tls(t);
134
135        switch (mesg) {
136        case MESSAGE_PACKET:
137                assert(tls != NULL);
138                assert(!(tls->seen_stop_message));
139                tls->count++;
140                if (tls->count>100) {
141                        fprintf(stderr, "Too many packets someone should stop me!!\n");
142                        kill(getpid(), SIGTERM);
143                }
144                // Do some work to even out the load on cores
145                b = &c;
146                for (a = 0; a < 10000000; a++) {
147                        c += a**b;
148                }
149                x = c;
150                return data.pkt;
151        case MESSAGE_STARTING:
152                assert(tls == NULL);
153                tls = calloc(sizeof(struct TLS), 1);
154                ret = trace_set_tls(t, tls);
155                assert(ret == NULL);
156                tls->seen_start_message = true;
157                break;
158        case MESSAGE_STOPPING:
159                assert(tls->seen_start_message);
160                assert(tls != NULL);
161                tls->seen_stop_message = true;
162                trace_set_tls(t, NULL);
163
164                // All threads publish to verify the thread count
165                trace_publish_result(trace, t, (uint64_t) 0, (libtrace_generic_t){.sint=tls->count}, RESULT_NORMAL);
166                trace_post_reporter(trace);
167                free(tls);
168                break;
169        case MESSAGE_TICK:
170                assert(tls->seen_start_message );
171                fprintf(stderr, "Not expecting a tick packet\n");
172                kill(getpid(), SIGTERM);
173                break;
174        case MESSAGE_PAUSING:
175                assert(tls->seen_start_message);
176                tls->seen_pausing_message = true;
177                break;
178        case MESSAGE_RESUMING:
179                assert(tls->seen_pausing_message || tls->seen_start_message);
180                tls->seen_resuming_message = true;
181                break;
182        }
183        return NULL;
184}
185
186
187/**
188 * Test that the single threaded fallback works
189 */
190int test_100_threads(const char *tracename, int expected) {
191        libtrace_t *trace;
192        int error = 0;
193        int i;
194        printf("Testing single threaded\n");
195
196        // Create the trace
197        trace = trace_create(tracename);
198        iferr(trace,tracename);
199
200        // Enable the single threaded fallback codepath
201        i = 100;
202        trace_parallel_config(trace, TRACE_OPTION_SET_PERPKT_THREAD_COUNT, &i);
203
204        // Start it
205        trace_pstart(trace, NULL, per_packet, report_result);
206        iferr(trace,tracename);
207
208        /* Make sure traces survive a pause and restart */
209        trace_ppause(trace);
210        iferr(trace,tracename);
211        trace_pstart(trace, NULL, NULL, NULL);
212        iferr(trace,tracename);
213
214        /* Wait for all threads to stop */
215        trace_join(trace);
216
217        /* Now check we have all received all the packets */
218        if (error == 0) {
219                if (totalpkts == expected) {
220                        printf("success: %d packets read\n",expected);
221                } else {
222                        printf("failure: %d packets expected, %d seen\n",expected,totalpkts);
223                        error = 1;
224                }
225        } else {
226                iferr(trace,tracename);
227        }
228    trace_destroy(trace);
229    return error;
230}
231
232int main(int argc, char *argv[]) {
233        int error = 0;
234        int expected = 100;
235        const char *tracename;
236
237        if (argc<2) {
238                fprintf(stderr,"usage: %s type\n",argv[0]);
239                return 1;
240        }
241
242        tracename = lookup_uri(argv[1]);
243
244        if (strcmp(argv[1],"rtclient")==0) expected=101;
245
246        error = test_100_threads(tracename, expected);
247    return error;
248}
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