1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
#include "common/ceph_argparse.h"
#include "common/debug.h"
#include "common/config.h"
#include "global/global_init.h"
#include "global/signal_handler.h"
#include "include/mempool.h"
#include <iostream>
#include <string>
using std::cerr;
using std::string;
static void usage(void)
{
cerr << "--threads number of threads (default 1)" << std::endl;
cerr << "--sharding activate sharding optimization" << std::endl;
}
mempool::shard_t shards[mempool::num_shards] = {0};
void sigterm_handler(int signum)
{
size_t total = 0;
for (auto& shard : shards) {
total += shard.bytes;
}
std::cout << total << std::endl;
exit(0);
}
int main(int argc, const char **argv)
{
int ret = 0;
auto args = argv_to_vec(argc, argv);
auto cct = global_init(NULL, args, CEPH_ENTITY_TYPE_CLIENT,
CODE_ENVIRONMENT_UTILITY,
CINIT_FLAG_NO_DEFAULT_CONFIG_FILE);
common_init_finish(g_ceph_context);
int threads = 1;
bool sharding = false;
for (std::vector<const char*>::iterator i = args.begin(); i != args.end(); ) {
if (ceph_argparse_double_dash(args, i)) {
break;
}
else if (ceph_argparse_witharg(args, i, &threads, cerr, "--threads", "-t", (char*)NULL)) {
}
else if (ceph_argparse_flag(args, i, "--sharding", "-s", (char*)NULL)) {
sharding = true;
}
else {
cerr << "unknown command line option: " << *i << std::endl;
cerr << std::endl;
usage();
return 2;
}
}
init_async_signal_handler();
register_async_signal_handler(SIGTERM, sigterm_handler);
std::vector<std::thread> workers;
for (int i = 0; i < threads; i++) {
workers.push_back(
std::thread([&](){
while(1) {
size_t i;
if (sharding) {
i = mempool::pool_t::pick_a_shard_int();
} else {
i = 0;
}
shards[i].bytes++;
}
}));
}
for (auto& t:workers) {
t.join();
}
workers.clear();
return ret;
}
|
