sb_request_t memory_get_request(int tid)
{
sb_request_t req;
sb_mem_request_t *mem_req = &req.u.mem_request;
(void)tid; /* unused */
SB_THREAD_MUTEX_LOCK();
if (total_bytes >= memory_total_size)
{
req.type = SB_REQ_TYPE_NULL;
SB_THREAD_MUTEX_UNLOCK();
return req;
}
total_ops++;
total_bytes += memory_block_size;
SB_THREAD_MUTEX_UNLOCK();
req.type = SB_REQ_TYPE_MEMORY;
mem_req->block_size = memory_block_size;
mem_req->scope = memory_scope;
mem_req->type = memory_oper;
return req;
}
sb_request_t threads_get_request(void)
{
sb_request_t sb_req;
sb_threads_request_t *threads_req = &sb_req.u.threads_request;
SB_THREAD_MUTEX_LOCK();
if (req_performed >= sb_globals.max_requests)
{
sb_req.type = SB_REQ_TYPE_NULL;
SB_THREAD_MUTEX_UNLOCK();
return sb_req;
}
sb_req.type = SB_REQ_TYPE_THREADS;
threads_req->lock_num = req_performed % thread_locks;
req_performed++;
SB_THREAD_MUTEX_UNLOCK();
return sb_req;
}
sb_request_t cpu_get_request(int thread_id)
{
sb_request_t req;
(void) thread_id; /* unused */
if (sb_globals.max_requests > 0)
{
SB_THREAD_MUTEX_LOCK();
if (req_performed >= sb_globals.max_requests)
{
req.type = SB_REQ_TYPE_NULL;
SB_THREAD_MUTEX_UNLOCK();
return req;
}
req_performed++;
SB_THREAD_MUTEX_UNLOCK();
}
req.type = SB_REQ_TYPE_CPU;
return req;
}
void memory_print_stats(sb_stat_t type)
{
double seconds;
const double megabyte = 1024.0 * 1024.0;
switch (type) {
case SB_STAT_INTERMEDIATE:
SB_THREAD_MUTEX_LOCK();
seconds = NS2SEC(sb_timer_split(&sb_globals.exec_timer));
log_timestamp(LOG_NOTICE, &sb_globals.exec_timer,
"%4.2f MB/sec,",
(double)(total_bytes - last_bytes) / megabyte / seconds);
last_bytes = total_bytes;
SB_THREAD_MUTEX_UNLOCK();
break;
case SB_STAT_CUMULATIVE:
seconds = NS2SEC(sb_timer_split(&sb_globals.cumulative_timer1));
log_text(LOG_NOTICE, "Operations performed: %d (%8.2f ops/sec)\n",
total_ops, total_ops / seconds);
if (memory_oper != SB_MEM_OP_NONE)
log_text(LOG_NOTICE, "%4.2f MB transferred (%4.2f MB/sec)\n",
total_bytes / megabyte,
total_bytes / megabyte / seconds);
total_ops = 0;
total_bytes = 0;
/*
So that intermediate stats are calculated from the current moment
rather than from the previous intermediate report
*/
if (sb_timer_initialized(&sb_globals.exec_timer))
sb_timer_split(&sb_globals.exec_timer);
break;
}
}
int file_execute_request(sb_request_t *sb_req, int thread_id)
{
FILE_DESCRIPTOR fd;
sb_file_request_t *file_req = &sb_req->u.file_request;
log_msg_t msg;
log_msg_oper_t op_msg;
if (sb_globals.debug)
{
log_text(LOG_DEBUG,
"Executing request, operation: %d, file_id: %d, pos: %d, "
"size: %d",
file_req->operation,
file_req->file_id,
(int)file_req->pos,
(int)file_req->size);
}
/* Check request parameters */
if (file_req->file_id > num_files)
{
log_text(LOG_FATAL, "Incorrect file discovered in request");
return 1;
}
if (file_req->pos + file_req->size > file_size)
{
log_text(LOG_FATAL, "Too large position discovered in request!");
return 1;
}
fd = files[file_req->file_id];
/* Prepare log message */
msg.type = LOG_MSG_TYPE_OPER;
msg.data = &op_msg;
switch (file_req->operation) {
case FILE_OP_TYPE_NULL:
log_text(LOG_FATAL, "Execute of NULL request called !, aborting");
return 1;
case FILE_OP_TYPE_WRITE:
/* Store checksum and offset in a buffer when in validation mode */
if (sb_globals.validate)
file_fill_buffer(buffer, file_req->size, file_req->pos);
LOG_EVENT_START(msg, thread_id);
if(file_pwrite(file_req->file_id, buffer, file_req->size, file_req->pos,
thread_id)
!= (ssize_t)file_req->size)
{
log_errno(LOG_FATAL, "Failed to write file! file: " FD_FMT " pos: %lld",
fd, (long long)file_req->pos);
return 1;
}
/* Check if we have to fsync each write operation */
if (file_fsync_all)
{
if (file_fsync(file_req->file_id, thread_id))
{
log_errno(LOG_FATAL, "Failed to fsync file! file: " FD_FMT, fd);
return 1;
}
}
LOG_EVENT_STOP(msg, thread_id);
SB_THREAD_MUTEX_LOCK();
write_ops++;
real_write_ops++;
bytes_written += file_req->size;
if (file_fsync_all)
other_ops++;
SB_THREAD_MUTEX_UNLOCK();
break;
case FILE_OP_TYPE_READ:
LOG_EVENT_START(msg, thread_id);
if(file_pread(file_req->file_id, buffer, file_req->size, file_req->pos,
thread_id)
!= (ssize_t)file_req->size)
{
log_errno(LOG_FATAL, "Failed to read file! file: " FD_FMT " pos: %lld",
fd, (long long)file_req->pos);
return 1;
}
LOG_EVENT_STOP(msg, thread_id);
/* Validate block if run with validation enabled */
if (sb_globals.validate &&
file_validate_buffer(buffer, file_req->size, file_req->pos))
{
log_text(LOG_FATAL,
"Validation failed on file " FD_FMT ", block offset 0x%x, exiting...",
file_req->file_id, file_req->pos);
return 1;
}
SB_THREAD_MUTEX_LOCK();
read_ops++;
real_read_ops++;
bytes_read += file_req->size;
SB_THREAD_MUTEX_UNLOCK();
break;
case FILE_OP_TYPE_FSYNC:
/* Ignore fsync requests if we are already fsync'ing each operation */
if (file_fsync_all)
break;
if(file_fsync(file_req->file_id, thread_id))
{
log_errno(LOG_FATAL, "Failed to fsync file! file: " FD_FMT, fd);
return 1;
}
SB_THREAD_MUTEX_LOCK();
other_ops++;
SB_THREAD_MUTEX_UNLOCK();
break;
default:
log_text(LOG_FATAL, "Execute of UNKNOWN file request type called (%d)!, "
"aborting", file_req->operation);
return 1;
}
return 0;
}
sb_request_t file_get_rnd_request(void)
{
sb_request_t sb_req;
sb_file_request_t *file_req = &sb_req.u.file_request;
unsigned int randnum;
unsigned long long tmppos;
int real_mode = test_mode;
int mode = test_mode;
static unsigned long long ag_pos = 0;
static int ag_group = 0;
sb_req.type = SB_REQ_TYPE_FILE;
/*
Convert mode for combined tests. Locking to get consistent values
We have to use "real" values for mixed test
*/
if (test_mode==MODE_RND_RW)
{
SB_THREAD_MUTEX_LOCK();
if ((double)(real_read_ops + 1) / (real_write_ops + 1) < file_rw_ratio)
mode=MODE_RND_READ;
else
mode=MODE_RND_WRITE;
SB_THREAD_MUTEX_UNLOCK();
}
/* fsync all files (if requested by user) as soon as we are done */
if (req_performed == sb_globals.max_requests && sb_globals.max_requests > 0)
{
if (file_fsync_end != 0 &&
(real_mode == MODE_RND_WRITE || real_mode == MODE_RND_RW ||
real_mode == MODE_AG4_WRITE || real_mode == MODE_MIXED))
{
pthread_mutex_lock(&fsync_mutex);
if(fsynced_file2 < num_files)
{
file_req->file_id = fsynced_file2;
file_req->operation = FILE_OP_TYPE_FSYNC;
file_req->pos = 0;
file_req->size = 0;
fsynced_file2++;
pthread_mutex_unlock(&fsync_mutex);
return sb_req;
}
pthread_mutex_unlock(&fsync_mutex);
}
sb_req.type = SB_REQ_TYPE_NULL;
return sb_req;
}
/*
is_dirty is only set if writes are done and cleared after all files
are synced
*/
if(file_fsync_freq != 0 && is_dirty)
{
if (req_performed % file_fsync_freq == 0)
{
file_req->operation = FILE_OP_TYPE_FSYNC;
file_req->file_id = fsynced_file;
file_req->pos = 0;
file_req->size = 0;
fsynced_file++;
if (fsynced_file == num_files)
{
fsynced_file = 0;
is_dirty = 0;
}
return sb_req;
}
}
randnum=sb_rnd();
if (mode==MODE_RND_WRITE) /* mode shall be WRITE or RND_WRITE only */
file_req->operation = FILE_OP_TYPE_WRITE;
else
file_req->operation = FILE_OP_TYPE_READ;
if (mode==MODE_AG4_WRITE) {
if (++ag_group == 4) {
ag_pos += file_block_size*2;
ag_pos %= total_size / 4;
ag_group = 0;
}
tmppos = ag_pos + total_size / 4 * ag_group;
file_req->operation = FILE_OP_TYPE_WRITE;
}
else {
tmppos = (long long)((double)randnum / (double)SB_MAX_RND * (double)(total_size));
}
tmppos = tmppos - (tmppos % (long long)file_block_size);
file_req->file_id = (int)(tmppos / (long long)file_size);
file_req->pos = (long long)(tmppos % (long long)file_size);
file_req->size = file_block_size;
req_performed++;
if (file_req->operation == FILE_OP_TYPE_WRITE)
is_dirty = 1;
return sb_req;
}