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 // Measure the throughput of incrementing a status variable on multiple threads.
53
54 struct partitioned_counter {
55 struct {
56 union {
57 uint64_t counter;
58 uint64_t junk[64/8];
59 } c;
60 } b[4096/64];
61
incrementpartitioned_counter62 void increment() {
63 #if HAVE_SCHED_GETCPU
64 int n = sched_getcpu();
65 #else
66 int n = random();
67 #endif
68 assert(n >= 0);
69 toku_sync_fetch_and_add(&b[ n % (4096/64)].c.counter, 1);
70 }
71
readpartitioned_counter72 uint64_t read() {
73 uint64_t s = 0;
74 for (int i = 0; i < 4096/64; i++)
75 s += b[i].c.counter;
76 return s;
77 }
78 };
79
80 struct partitioned_counter the_counter;
81
UU()82 static int UU() nop(DB_TXN* UU(txn), ARG UU(arg), void* UU(operation_extra), void *UU(stats_extra)) {
83 the_counter.increment();
84 return 0;
85 }
86
87 static void
stress_table(DB_ENV * env,DB ** dbp,struct cli_args * cli_args)88 stress_table(DB_ENV* env, DB** dbp, struct cli_args *cli_args) {
89 if (verbose) printf("starting creation of pthreads\n");
90 const int num_threads = cli_args->num_ptquery_threads;
91 struct arg myargs[num_threads];
92 for (int i = 0; i < num_threads; i++) {
93 arg_init(&myargs[i], dbp, env, cli_args);
94 myargs[i].operation = nop;
95 }
96 run_workers(myargs, num_threads, cli_args->num_seconds, false, cli_args);
97 }
98
99 int
test_main(int argc,char * const argv[])100 test_main(int argc, char *const argv[]) {
101 struct cli_args args = get_default_args_for_perf();
102 parse_stress_test_args(argc, argv, &args);
103 perf_test_main(&args);
104 return 0;
105 }
106