void schedule_new_transaction(int chan_id) {
int transaction_index;
int next_slot_id;
/* Then if the command bus(ses) are still open and idle, and something *could* be scheduled,
* but isn't, then we can look to create a new transaction by looking in the biu for pending requests
* FBDIMM : You check the up_bus
* If Refresh enabled you check if you have a refresh waiting ... */
if(dram_system.dram_controller[chan_id].transaction_queue.transaction_count >= (dram_system.config.max_tq_size)){
if (get_transaction_debug())
fprintf(stdout,"[%llu] Transaction queue [%d] full. Cannot start new transaction.\n",dram_system.current_dram_time,chan_id);
return ;
}
if((next_slot_id = get_next_request_from_biu(global_biu)) != MEM_STATE_INVALID){
/* If command bus is idle, see if there is another request in BIU that needs to be serviced.
* We start by finding the request we want to service.
* Specifically, we want the slot_id of the request
* and either move it from VALID to MEM_STATE_SCHEDULED or from MEM_STATE_SCHEDULED to COMPLETED
*/
transaction_index = add_transaction(dram_system.current_dram_time,
get_access_type(global_biu, next_slot_id),
next_slot_id,&chan_id);
if(transaction_index != MEM_STATE_INVALID){
set_last_transaction_type(global_biu, get_access_type(global_biu, next_slot_id));
set_biu_slot_status(global_biu, next_slot_id, MEM_STATE_SCHEDULED);
if(get_transaction_debug()){
fprintf(stdout,"Start @ [%llu]: ",dram_system.current_dram_time);
print_transaction(dram_system.current_dram_time,chan_id,dram_system.dram_controller[chan_id].transaction_queue.entry[transaction_index].transaction_id);
}
} else if (get_transaction_debug()){
fprintf(stdout,"Transaction queue full. Cannot start new transaction.\n");
}
}
}
void
print_stats(const char *title,
unsigned int length,
unsigned int transactionFlag,
GeneratorStatistics *gen,
int numProc, int parallellism)
{
int i;
char buf[10];
char name[MAXHOSTNAMELEN];
name[0] = 0;
NdbHost_GetHostName(name);
ndbout_c("\n------ %s ------",title);
ndbout_c("Length : %d %s",
length,
transactionFlag ? "Transactions" : "sec");
ndbout_c("Processor : %s", name);
ndbout_c("Number of Proc: %d",numProc);
ndbout_c("Parallellism : %d", parallellism);
ndbout_c("\n");
if( gen->totalTransactions == 0 ) {
ndbout_c(" No Transactions for this test");
}
else {
for(i = 0; i < 5; i++) {
sprintf(buf, "T%d",i+1);
print_transaction(buf,
gen->totalTransactions,
&gen->transactions[i],
i >= 2,
i >= 3 );
}
ndbout_c("\n");
ndbout_c(" Overall Statistics:");
ndbout_c(" Transactions: %d", gen->totalTransactions);
ndbout_c(" Outer : %.0f TPS",gen->outerTps);
ndbout_c("\n");
}
}
std::ostream & Transaction::print_stream ( std::ostream &os ) const
{
for ( unsigned i = 0 ; i != m_modified.size() ; i++ )
print_transaction ( i , os );
return os;
}
