//------------------------------------------------
// Do one large block write operation and report.
//
static void write_and_report_large_block(device* p_device) {
salter* p_salter;
if (g_num_write_buffers > 1) {
p_salter = &g_salters[rand_32() % g_num_write_buffers];
pthread_mutex_lock(&p_salter->lock);
*(uint32_t*)p_salter->p_buffer = p_salter->stamp++;
}
else {
p_salter = &g_salters[0];
}
uint64_t offset = random_large_block_offset(p_device);
uint64_t start_time = cf_getus();
uint64_t stop_time = write_to_device(p_device, offset,
g_large_block_ops_bytes, p_salter->p_buffer);
if (g_num_write_buffers > 1) {
pthread_mutex_unlock(&p_salter->lock);
}
if (stop_time != -1) {
histogram_insert_data_point(g_p_large_block_write_histogram,
safe_delta_us(start_time, stop_time));
}
}
//------------------------------------------------
// Do one large block read operation and report.
//
static void read_and_report_large_block(device* p_device) {
uint64_t offset = random_large_block_offset(p_device);
uint64_t start_time = cf_getus();
uint64_t stop_time = read_from_device(p_device, offset,
g_large_block_ops_bytes, p_device->p_large_block_read_buffer);
if (stop_time != -1) {
histogram_insert_data_point(g_p_large_block_read_histogram,
safe_delta_us(start_time, stop_time));
}
}
//------------------------------------------------
// Do one large block read operation and report.
//
static void
read_and_report_large_block(device* dev, uint8_t* buf)
{
uint64_t offset = random_large_block_offset(dev);
uint64_t start_time = get_ns();
uint64_t stop_time = read_from_device(dev, offset,
g_scfg.large_block_ops_bytes, buf);
if (stop_time != -1) {
histogram_insert_data_point(g_large_block_read_hist,
safe_delta_ns(start_time, stop_time));
}
}
//------------------------------------------------
// Do one large block write operation and report.
//
static void
write_and_report_large_block(device* dev, uint8_t* buf, uint64_t count)
{
// Salt the block each time.
rand_fill(buf, g_scfg.large_block_ops_bytes);
uint64_t offset = random_large_block_offset(dev);
uint64_t start_time = get_ns();
uint64_t stop_time = write_to_device(dev, offset,
g_scfg.large_block_ops_bytes, buf);
if (stop_time != -1) {
histogram_insert_data_point(g_large_block_write_hist,
safe_delta_ns(start_time, stop_time));
}
}