1 /* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 // vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
3 #ident "$Id$"
4 /*======
5 This file is part of PerconaFT.
6
7
8 Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
9
10 PerconaFT is free software: you can redistribute it and/or modify
11 it under the terms of the GNU General Public License, version 2,
12 as published by the Free Software Foundation.
13
14 PerconaFT is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
21
22 ----------------------------------------
23
24 PerconaFT is free software: you can redistribute it and/or modify
25 it under the terms of the GNU Affero General Public License, version 3,
26 as published by the Free Software Foundation.
27
28 PerconaFT is distributed in the hope that it will be useful,
29 but WITHOUT ANY WARRANTY; without even the implied warranty of
30 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31 GNU Affero General Public License for more details.
32
33 You should have received a copy of the GNU Affero General Public License
34 along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
35 ======= */
36
37 #ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
38
39 #include "test.h"
40
41 #include <stdio.h>
42 #include <stdlib.h>
43
44 #include <toku_pthread.h>
45 #include <unistd.h>
46 #include <memory.h>
47 #include <sys/stat.h>
48 #include <db.h>
49
50 #include "threaded_stress_test_helpers.h"
51
52 //
53 // This test is a form of stress that does operations on a single dictionary:
54 // We create a dictionary bigger than the cachetable (around 4x greater).
55 // Then, we spawn a bunch of pthreads that do the following:
56 // - scan dictionary forward with bulk fetch
57 // - scan dictionary forward slowly
58 // - scan dictionary backward with bulk fetch
59 // - scan dictionary backward slowly
60 // - update existing values in the dictionary with db->put(DB_YESOVERWRITE)
61 // - do random point queries into the dictionary
62 // With the small cachetable, this should produce quite a bit of churn in reading in and evicting nodes.
63 // If the test runs to completion without crashing, we consider it a success.
64 //
65 // This test differs from stress2 in that it sends periodic update broadcasts.
66 //
67
68 static void
stress_table(DB_ENV * env,DB ** dbp,struct cli_args * cli_args)69 stress_table(DB_ENV *env, DB **dbp, struct cli_args *cli_args) {
70 //
71 // the threads that we want:
72 // - one thread constantly updating random values
73 // - one thread doing table scan with bulk fetch
74 // - one thread doing table scan without bulk fetch
75 // - one thread doing random point queries
76 //
77 if (verbose) printf("starting creation of pthreads\n");
78 const int num_threads = 5 + cli_args->num_update_threads + cli_args->num_ptquery_threads;
79 struct arg myargs[num_threads];
80 for (int i = 0; i < num_threads; i++) {
81 arg_init(&myargs[i], dbp, env, cli_args);
82 }
83
84 struct scan_op_extra soe[4];
85
86 // make the forward fast scanner
87 soe[0].fast = true;
88 soe[0].fwd = true;
89 soe[0].prefetch = false;
90 myargs[0].operation_extra = &soe[0];
91 myargs[0].operation = scan_op;
92
93 // make the forward slow scanner
94 soe[1].fast = false;
95 soe[1].fwd = true;
96 soe[1].prefetch = false;
97 myargs[1].operation_extra = &soe[1];
98 myargs[1].operation = scan_op;
99 myargs[1].txn_flags = DB_TXN_SNAPSHOT | DB_TXN_READ_ONLY;
100
101 // make the backward fast scanner
102 soe[2].fast = true;
103 soe[2].fwd = false;
104 soe[2].prefetch = false;
105 myargs[2].operation_extra = &soe[2];
106 myargs[2].operation = scan_op;
107 myargs[2].txn_flags = DB_TXN_SNAPSHOT | DB_TXN_READ_ONLY;
108
109 // make the backward slow scanner
110 soe[3].fast = false;
111 soe[3].fwd = false;
112 soe[3].prefetch = false;
113 myargs[3].operation_extra = &soe[3];
114 myargs[3].operation = scan_op;
115
116 struct update_op_args uoe = get_update_op_args(cli_args, NULL);
117 // make the guy that updates the db
118 for (int i = 4; i < 4 + cli_args->num_update_threads; ++i) {
119 myargs[i].operation_extra = &uoe;
120 myargs[i].lock_type = STRESS_LOCK_SHARED;
121 myargs[i].operation = update_op;
122 }
123
124 // make the guy that sends update broadcasts
125 myargs[4 + cli_args->num_update_threads].lock_type = STRESS_LOCK_EXCL;
126 myargs[4 + cli_args->num_update_threads].sleep_ms = cli_args->update_broadcast_period_ms;
127 myargs[4 + cli_args->num_update_threads].operation = update_broadcast_op;
128
129 // make the guys that do point queries
130 for (int i = 5 + cli_args->num_update_threads; i < num_threads; i++) {
131 myargs[i].operation = ptquery_op;
132 }
133
134 run_workers(myargs, num_threads, cli_args->num_seconds, false, cli_args);
135 }
136
137 int
test_main(int argc,char * const argv[])138 test_main(int argc, char *const argv[]) {
139 struct cli_args args = get_default_args();
140 parse_stress_test_args(argc, argv, &args);
141 stress_test_main(&args);
142 return 0;
143 }
144