X-Git-Url: https://pd.if.org/git/?p=nbds;a=blobdiff_plain;f=test%2Fperf_test.c;fp=test%2Fperf_test.c;h=ace96d08e3171d6d9c03e38b0de97ddf88a40c4d;hp=0000000000000000000000000000000000000000;hb=7d658a03f83e64690d0c71b4733dd3f9a2c60208;hpb=6b4f3ea4891b6c0e65dfd6d41f49aee2daa9e23d

diff --git a/test/perf_test.c b/test/perf_test.c
new file mode 100644
index 0000000..ace96d0
--- /dev/null
+++ b/test/perf_test.c
@@ -0,0 +1,180 @@
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <sys/time.h>
+
+#include "common.h"
+#include "nstring.h"
+#include "runtime.h"
+#include "map.h"
+#include "rcu.h"
+#include "mem.h"
+#include "list.h"
+#include "skiplist.h"
+#include "hashtable.h"
+
+//#define TEST_STRING_KEYS
+
+static volatile int wait_;
+static volatile int stop_;
+static long num_threads_;
+static map_t *map_;
+static int get_range_;
+static int put_range_;
+static int num_keys_;
+static map_key_t *keys_ = NULL;
+static uint64_t times_[MAX_NUM_THREADS] = {};
+static int ops_[MAX_NUM_THREADS] = {};
+
+void *worker (void *arg) {
+    int tid = (int)(size_t)arg;
+    uint64_t s = nbd_rand_seed(tid);
+    int get_ops = 0, put_ops = 0, del_ops = 0;
+
+    // Wait for all the worker threads to be ready.
+    (void)SYNC_ADD(&wait_, -1);
+    do {} while (wait_); 
+
+    uint64_t t1 = rdtsc();
+
+    while (!stop_) {
+        int r = nbd_next_rand(&s);
+        int x = r & ( (1 << 20) - 1 );
+        int i = nbd_next_rand(&s) & (num_keys_ - 1);
+        map_key_t key = keys_[i];
+        if (x < get_range_) {
+            map_val_t val = map_get(map_, key);
+#ifdef TEST_STRING_KEYS
+            ASSERT(val == DOES_NOT_EXIST || ns_cmp((nstring_t *)key, (nstring_t *)val) == 0);
+#else
+            ASSERT(val == DOES_NOT_EXIST || key == val);
+#endif
+            get_ops++;
+        } else if (x < put_range_) {
+            map_add(map_, key, key);
+            put_ops++;
+        } else {
+            map_remove(map_, key);
+            del_ops++;
+        }
+        rcu_update();
+    }
+
+    times_[tid] = rdtsc() - t1;
+    ops_[tid] = get_ops + put_ops + del_ops;
+
+    return NULL;
+}
+
+void run_test (void) {
+    wait_ = num_threads_ + 1;
+
+    // Quicky sanity check
+    int n = 100;
+    if (num_keys_ < n) { n = num_keys_; }
+    for (int i = 0; i < n; ++i) {
+        map_set(map_, keys_[i], keys_[i]);
+        for(int j = 0; j < i; ++j) {
+#ifdef TEST_STRING_KEYS
+            ASSERT(ns_cmp((nstring_t *)map_get(map_, keys_[i]), (nstring_t *)keys_[i]) == 0);
+#else
+            ASSERT(map_get(map_, keys_[i]) == keys_[i]);
+#endif
+        }
+    }
+
+    stop_ = 0;
+
+    pthread_t thread[MAX_NUM_THREADS];
+    for (int i = 0; i < num_threads_; ++i) {
+        int rc = nbd_thread_create(thread + i, i, worker, (void*)(size_t)i);
+        if (rc != 0) { perror("pthread_create"); exit(rc); }
+    }
+
+    do { /* nothing */ } while (wait_ != 1);
+
+    wait_ = 0;
+    sleep(2);
+    stop_ = 1;
+
+    for (int i = 0; i < num_threads_; ++i) {
+        pthread_join(thread[i], NULL);
+    }
+}
+
+int main (int argc, char **argv) {
+    char* program_name = argv[0];
+
+    if (argc > 2) {
+        fprintf(stderr, "Usage: %s num_threads\n", program_name);
+        return -1;
+    }
+
+    num_threads_ = 2;
+    if (argc == 2)
+    {
+        errno = 0;
+        num_threads_ = strtol(argv[1], NULL, 10);
+        if (errno) {
+            fprintf(stderr, "%s: Invalid argument for number of threads\n", program_name);
+            return -1;
+        }
+        if (num_threads_ <= 0) {
+            fprintf(stderr, "%s: Number of threads must be at least 1\n", program_name);
+            return -1;
+        }
+        if (num_threads_ > MAX_NUM_THREADS) {
+            fprintf(stderr, "%s: Number of threads cannot be more than %d\n", program_name, MAX_NUM_THREADS);
+            return -1;
+        }
+    }
+
+
+    int table_scale = 10;
+    int read_ratio = 95;
+    get_range_ = (read_ratio << 20) / 100;
+    put_range_ = (((1 << 20) - get_range_) >> 1) + get_range_;
+
+    static const map_impl_t *map_types[] = { &MAP_IMPL_HT };
+    for (int i = 0; i < sizeof(map_types)/sizeof(*map_types); ++i) {
+#ifdef TEST_STRING_KEYS
+        map_ = map_alloc(map_types[i], &DATATYPE_NSTRING);
+#else
+        map_ = map_alloc(map_types[i], NULL);
+#endif
+
+        // Do some warmup
+        num_keys_ = 1 << table_scale;
+        keys_ = nbd_malloc(sizeof(map_key_t) * num_keys_);
+        for (int j = 0; j < num_keys_; ++j) {
+#ifdef TEST_STRING_KEYS
+            char tmp[64];
+            snprintf(tmp, sizeof(tmp), "%dabc%d", j, j*17+123);
+            int n = strlen(tmp);
+            keys_[j] = ns_alloc(n);
+            memcpy(keys_[j], tmp, n);
+#else
+            keys_[j] = j*17+123;
+#endif
+        }
+
+        struct timeval tv1, tv2;
+        gettimeofday(&tv1, NULL);
+
+        int num_trials = 1;
+        for (int i = 0; i < num_trials; ++i) {
+            run_test();
+        }
+
+        gettimeofday(&tv2, NULL);
+        int ms = (int)(1000000*(tv2.tv_sec - tv1.tv_sec) + tv2.tv_usec - tv1.tv_usec) / 1000;
+        map_print(map_);
+        printf("Th:%ld Time:%dms\n\n", num_threads_, ms);
+        fflush(stdout);
+
+        map_free(map_);
+    }
+
+    return 0;
+}