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timing_tests.cc
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timing_tests.cc
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/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Copyright 2010 NorthScale, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <iostream>
#include <sstream>
#include <map>
#include <string>
#include <vector>
#include <cstdlib>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pthread.h>
#include <netinet/in.h>
#ifdef HAS_ARPA_INET_H
#include <arpa/inet.h>
#endif
#include <memcached/engine.h>
#include <memcached/engine_testapp.h>
#include "ep_testsuite.h"
#include "command_ids.h"
#ifdef linux
/* /usr/include/netinet/in.h defines macros from ntohs() to _bswap_nn to
* optimize the conversion functions, but the prototypes generate warnings
* from gcc. The conversion methods isn't the bottleneck for my app, so
* just remove the warnings by undef'ing the optimization ..
*/
#undef ntohs
#undef ntohl
#undef htons
#undef htonl
#endif
bool abort_msg(const char *expr, const char *msg, int line);
#define check(expr, msg) \
static_cast<void>((expr) ? 0 : abort_msg(#expr, msg, __LINE__))
protocol_binary_response_status last_status(static_cast<protocol_binary_response_status>(0));
char *last_key = NULL;
char *last_body = NULL;
std::map<std::string, std::string> vals;
struct test_harness testHarness;
bool abort_msg(const char *expr, const char *msg, int line) {
fprintf(stderr, "%s:%d Test failed: `%s' (%s)\n",
__FILE__, line, msg, expr);
abort();
// UNREACHABLE
return false;
}
extern "C" {
static void rmdb(void) {
unlink("/tmp/test.db");
unlink("/tmp/test.db-0.sqlite");
unlink("/tmp/test.db-1.sqlite");
unlink("/tmp/test.db-2.sqlite");
unlink("/tmp/test.db-3.sqlite");
}
static bool teardown(ENGINE_HANDLE *h, ENGINE_HANDLE_V1 *h1) {
(void)h; (void)h1;
atexit(rmdb);
vals.clear();
return true;
}
}
static inline void decayingSleep(useconds_t *sleepTime) {
static const useconds_t maxSleepTime = 500000;
usleep(*sleepTime);
*sleepTime = std::min(*sleepTime << 1, maxSleepTime);
}
static ENGINE_ERROR_CODE storeCasVb11(ENGINE_HANDLE *h, ENGINE_HANDLE_V1 *h1,
const void *cookie,
ENGINE_STORE_OPERATION op,
const char *key,
const char *value, size_t vlen,
uint32_t flags,
item **outitem, uint64_t casIn,
uint16_t vb) {
item *it = NULL;
uint64_t cas = 0;
ENGINE_ERROR_CODE rv = ENGINE_SUCCESS;
rv = h1->allocate(h, cookie, &it,
key, strlen(key),
vlen, flags, 3600);
check(rv == ENGINE_SUCCESS, "Allocation failed.");
item_info info;
info.nvalue = 1;
if (!h1->get_item_info(h, cookie, it, &info)) {
abort();
}
memcpy(info.value[0].iov_base, value, vlen);
h1->item_set_cas(h, cookie, it, casIn);
rv = h1->store(h, cookie, it, &cas, op, vb);
if (outitem) {
*outitem = it;
}
return rv;
}
extern "C" {
static void add_stats(const char *key, const uint16_t klen,
const char *val, const uint32_t vlen,
const void *cookie) {
(void)cookie;
std::string k(key, klen);
std::string v(val, vlen);
vals[k] = v;
}
}
static int get_int_stat(ENGINE_HANDLE *h, ENGINE_HANDLE_V1 *h1,
const char *statname, const char *statkey = NULL) {
vals.clear();
check(h1->get_stats(h, NULL, statkey, statkey == NULL ? 0 : strlen(statkey),
add_stats) == ENGINE_SUCCESS,
"Failed to get stats.");
std::string s = vals[statname];
return atoi(s.c_str());
}
static void verify_curr_items(ENGINE_HANDLE *h, ENGINE_HANDLE_V1 *h1,
int exp, const char *msg) {
int curr_items = get_int_stat(h, h1, "curr_items");
if (curr_items != exp) {
std::cerr << "Expected "<< exp << " curr_items after " << msg
<< ", got " << curr_items << std::endl;
abort();
}
}
static void wait_for_flusher_to_settle(ENGINE_HANDLE *h, ENGINE_HANDLE_V1 *h1) {
useconds_t sleepTime = 128;
while (get_int_stat(h, h1, "ep_flusher_todo")
+ get_int_stat(h, h1, "ep_queue_size") > 0) {
decayingSleep(&sleepTime);
}
}
static size_t env_int(const char *k, size_t rv) {
char *x = getenv(k);
if (x) {
rv = static_cast<size_t>(atoi(x));
}
return rv;
}
extern "C" {
static test_result test_persistence(ENGINE_HANDLE *h, ENGINE_HANDLE_V1 *h1) {
size_t total = env_int("TEST_TOTAL_KEYS", 100000);
size_t size = env_int("TEST_VAL_SIZE", 20);
char key[24];
char *data;
data = static_cast<char *>(malloc(sizeof(char) * size));
assert(data);
for (size_t i = 0; i < (sizeof(char) * size); ++i) {
data[i] = 0xff & rand();
}
for (size_t i = 0; i < total; ++i) {
item *it = NULL;
snprintf(key, sizeof(key), "k%d", static_cast<int>(i));
check(storeCasVb11(h, h1, NULL, OPERATION_SET, key, data,
size, 9713, &it, 0, 0) == ENGINE_SUCCESS,
"store failure");
}
wait_for_flusher_to_settle(h, h1);
std::cout << total << " at " << size << " - "
<< get_int_stat(h, h1, "ep_flush_duration_total")
<< ", " << get_int_stat(h, h1, "ep_commit_time_total") << std::endl;
verify_curr_items(h, h1, total, "storing something");
return SUCCESS;
}
}
extern "C" MEMCACHED_PUBLIC_API
bool setup_suite(struct test_harness *th) {
testHarness = *th;
return true;
}
extern "C" MEMCACHED_PUBLIC_API
engine_test_t* get_tests(void) {
static engine_test_t tests[] = {
{"test persistence", test_persistence, NULL, teardown, NULL},
{NULL, NULL, NULL, NULL, NULL}
};
return tests;
}