function GetProdU()
{
$noNodes = 0;
$noStreams = 0;
PDQ_Init("");
$noStreams = PDQ_CreateClosed("Production", TERM, 20.0, 20.0);
$noNodes = PDQ_CreateNode("CPU", CEN, FCFS);
$noNodes = PDQ_CreateNode("DK1", CEN, FCFS);
$noNodes = PDQ_CreateNode("DK2", CEN, FCFS);
PDQ_SetDemand("CPU", "Production", 0.3);
PDQ_SetDemand("DK1", "Production", 0.08);
PDQ_SetDemand("DK2", "Production", 0.1);
PDQ_Solve(APPROX);
return PDQ_GetUtilization("CPU", "Production", TERM);
}
function main()
{
// Name of this model ...
$scenario = "C/S Upgrade2";
global $job, $node;
$noNodes = 0;
$noStreams = 0;
$txCD = "";
$txRQ = "";
$txSU = "";
$dumCD = "";
$dumRQ = "";
$dumSU = "";
$X = 0.0;
$ulan = 0.0;
$ufs = 0.0;
$ugw = 0.0;
$umf = 0.0;
$work = 0;
$dev = 0;
$i = 0;
$j = 0;
$demand = array(array());
// double [MAXPROC][MAXDEV]
$util = array();
// double [MAXDEV]
$udsk = array();
// double [MAXDEV]
$upc = array();
// double [MAXDEV]
$udasd = array();
// double [MAXDEV];
for ($i = 0; $i < MAXDEV; $i++) {
$util[$i] = 0.0;
$udsk[$i] = 0.0;
$upc[$i] = 0.0;
$udasd[$i] = 0.0;
for ($j = 0; $j < MAXPROC; $j++) {
$demand[$j][$i] = 0.0;
}
}
$PCarray = array();
$FDarray = array();
$MDarray = array();
// Allocate PCarray
for ($i = 0; $i < 2; $i++) {
$PCarray[$i] = new DEVARRAY_TYPE();
}
// Allocate FDarray and MDarray
for ($i = 0; $i < 10; $i++) {
$FDarray[$i] = new DEVARRAY_TYPE();
$MDarray[$i] = new DEVARRAY_TYPE();
}
$PCarray[0]->id = 0;
$PCarray[0]->label = "PCreal";
$PCarray[1]->id = 50;
$PCarray[1]->label = "PCagg";
for ($i = 0; $i < FS_DISKS; $i++) {
$FDarray[$i]->id = FDA + $i;
$FDarray[$i]->label = sprintf("FD%d", $i);
}
for ($i = 0; $i < MF_DISKS; $i++) {
$MDarray[$i]->id = MDA + $i;
$MDarray[$i]->label = sprintf("MD%d", $i);
}
/*
* CPU service times are calculated from MIPS Instruction counts in
* tables presented in original 1993 CMG paper.
*/
$demand[CD_REQ][PC] = 200 * K / PC_MIPS;
$demand[CD_RPY][PC] = 100 * K / PC_MIPS;
$demand[RQ_REQ][PC] = 150 * K / PC_MIPS;
$demand[RQ_RPY][PC] = 200 * K / PC_MIPS;
$demand[SU_REQ][PC] = 300 * K / PC_MIPS;
$demand[SU_RPY][PC] = 300 * K / PC_MIPS;
$demand[REQ_CD][FS] = 50 * K / FS_MIPS;
$demand[REQ_RQ][FS] = 70 * K / FS_MIPS;
$demand[REQ_SU][FS] = 10 * K / FS_MIPS;
$demand[CD_MSG][FS] = 35 * K / FS_MIPS;
$demand[RQ_MSG][FS] = 35 * K / FS_MIPS;
$demand[SU_MSG][FS] = 35 * K / FS_MIPS;
$demand[GT_SND][GW] = 50 * K / GW_MIPS;
$demand[GT_RCV][GW] = 50 * K / GW_MIPS;
$demand[MF_CD][MF] = 50 * K / MF_MIPS;
$demand[MF_RQ][MF] = 150 * K / MF_MIPS;
$demand[MF_SU][MF] = 20 * K / MF_MIPS;
// packets generated at each of the following sources ...
$demand[LAN_TX][PC] = 2 * K * TR_FACT / TR_MBPS;
$demand[LAN_TX][FS] = 2 * K * TR_FACT / TR_MBPS;
$demand[LAN_TX][GW] = 2 * K * TR_FACT / TR_MBPS;
/* File server Disk I/Os = #accesses x caching / (max IOs/Sec) */
for ($i = 0; $i < FS_DISKS; $i++) {
$demand[REQ_CD][$FDarray[$i]->id] = 1.0 * 0.5 / 128.9 / FS_DISKS;
$demand[REQ_RQ][$FDarray[$i]->id] = 1.5 * 0.5 / 128.9 / FS_DISKS;
$demand[REQ_SU][$FDarray[$i]->id] = 0.2 * 0.5 / 128.9 / FS_DISKS;
$demand[CD_MSG][$FDarray[$i]->id] = 1.0 * 0.5 / 128.9 / FS_DISKS;
$demand[RQ_MSG][$FDarray[$i]->id] = 1.5 * 0.5 / 128.9 / FS_DISKS;
$demand[SU_MSG][$FDarray[$i]->id] = 0.5 * 0.5 / 128.9 / FS_DISKS;
}
/* Mainframe DASD I/Os = (#accesses / (max IOs/Sec)) / #disks */
for ($i = 0; $i < MF_DISKS; $i++) {
$demand[MF_CD][$MDarray[$i]->id] = 2.0 / 60.24 / MF_DISKS;
$demand[MF_RQ][$MDarray[$i]->id] = 4.0 / 60.24 / MF_DISKS;
$demand[MF_SU][$MDarray[$i]->id] = 1.0 / 60.24 / MF_DISKS;
}
// Start building the PDQ model ...
PDQ_Init($scenario);
// Define physical resources as queues ...
$noNodes = PDQ_CreateNode($PCarray[0]->label, CEN, FCFS);
//$noNodes = PDQ_CreateNode(PCarray[1]->label, CEN, FCFS);
$noNodes = PDQ_CreateNode("FS", CEN, FCFS);
$noNodes = PDQ_CreateNode("GW", CEN, FCFS);
$noNodes = PDQ_CreateNode("MF", CEN, FCFS);
for ($i = 0; $i < FS_DISKS; $i++) {
$noNodes = PDQ_CreateNode($FDarray[$i]->label, CEN, FCFS);
}
for ($i = 0; $i < MF_DISKS; $i++) {
$noNodes = PDQ_CreateNode($MDarray[$i]->label, CEN, FCFS);
}
$noNodes = PDQ_CreateNode("TR", CEN, FCFS);
/*
* NOTE: Althought the Token Ring LAN is a passive device,
* it is treated as a separate node in order to agree to the results
* presented in the original CMG'93 paper.
*/
if ($noNodes > MAXDEV) {
printf("Number of noNodes %d exceeds MAXDEV = %d", $noNodes, MAXDEV);
}
// Assign transaction names ...
$txCD = "CatDsply";
$txRQ = "RemQuote";
$txSU = "StatusUp";
$dumCD = "CDdummy ";
$dumRQ = "RQdummy ";
$dumSU = "SUdummy ";
// Define an OPEN circuit workloads ...
$noStreams = PDQ_CreateOpen($txCD, 4.0 / 60.0);
$noStreams = PDQ_CreateOpen($txRQ, 8.0 / 60.0);
$noStreams = PDQ_CreateOpen($txSU, 1.0 / 60.0);
$noStreams = PDQ_CreateOpen($dumCD, (USERS - 1) * 4.0 / 60.0);
$noStreams = PDQ_CreateOpen($dumRQ, (USERS - 1) * 8.0 / 60.0);
$noStreams = PDQ_CreateOpen($dumSU, (USERS - 1) * 1.0 / 60.0);
// Define the service demands on each physical resource
// CD request + reply chain from workflow diagram
PDQ_SetDemand($PCarray[0]->label, $txCD, $demand[CD_REQ][PC] + 5 * $demand[CD_RPY][PC]);
// PDQ_SetDemand($PCarray[1]->label, $dumCD,($demand[CD_REQ][PC] + (5 * $demand[CD_RPY][PC])) / (USERS - 1));
PDQ_SetDemand("FS", $txCD, $demand[REQ_CD][FS] + 5 * $demand[CD_MSG][FS]);
PDQ_SetDemand("FS", $dumCD, $demand[REQ_CD][FS] + 5 * $demand[CD_MSG][FS]);
for ($i = 0; $i < FS_DISKS; $i++) {
PDQ_SetDemand($FDarray[$i]->label, $txCD, $demand[REQ_CD][$FDarray[$i]->id] + 5 * $demand[CD_MSG][$FDarray[$i]->id]);
PDQ_SetDemand($FDarray[$i]->label, $dumCD, $demand[REQ_CD][$FDarray[$i]->id] + 5 * $demand[CD_MSG][$FDarray[$i]->id]);
}
PDQ_SetDemand("GW", $txCD, $demand[GT_SND][GW] + 5 * $demand[GT_RCV][GW]);
PDQ_SetDemand("GW", $dumCD, $demand[GT_SND][GW] + 5 * $demand[GT_RCV][GW]);
PDQ_SetDemand("MF", $txCD, $demand[MF_CD][MF]);
PDQ_SetDemand("MF", $dumCD, $demand[MF_CD][MF]);
for ($i = 0; $i < MF_DISKS; $i++) {
PDQ_SetDemand($MDarray[$i]->label, $txCD, $demand[MF_CD][$MDarray[$i]->id]);
PDQ_SetDemand($MDarray[$i]->label, $dumCD, $demand[MF_CD][$MDarray[$i]->id]);
}
/*
* NOTE: Synchronous process execution causes data related to the the CD
* transaction to cross the LAN 12 times as depicted in the following
* parameterization of PDQ_SetDemand.
*/
PDQ_SetDemand("TR", $txCD, 1 * $demand[LAN_TX][PC] + 1 * $demand[LAN_TX][FS] + 5 * $demand[LAN_TX][GW] + 5 * $demand[LAN_TX][FS]);
PDQ_SetDemand("TR", $dumCD, 1 * $demand[LAN_TX][PC] + 1 * $demand[LAN_TX][FS] + 5 * $demand[LAN_TX][GW] + 5 * $demand[LAN_TX][FS]);
// RQ request + reply chain ...
PDQ_SetDemand($PCarray[0]->label, $txRQ, $demand[RQ_REQ][PC] + 3 * $demand[RQ_RPY][PC]);
// PDQ_SetDemand($PCarray[1]->label, $dumRQ,($demand[RQ_REQ][PC] + (3 * $demand[RQ_RPY][PC])) / (USERS - 1));
PDQ_SetDemand("FS", $txRQ, $demand[REQ_RQ][FS] + 3 * $demand[RQ_MSG][FS]);
PDQ_SetDemand("FS", $dumRQ, $demand[REQ_RQ][FS] + 3 * $demand[RQ_MSG][FS]);
for ($i = 0; $i < FS_DISKS; $i++) {
PDQ_SetDemand($FDarray[$i]->label, $txRQ, $demand[REQ_RQ][$FDarray[$i]->id] + 3 * $demand[RQ_MSG][$FDarray[$i]->id]);
PDQ_SetDemand($FDarray[$i]->label, $dumRQ, $demand[REQ_RQ][$FDarray[$i]->id] + 3 * $demand[RQ_MSG][$FDarray[$i]->id]);
}
PDQ_SetDemand("GW", $txRQ, $demand[GT_SND][GW] + 3 * $demand[GT_RCV][GW]);
PDQ_SetDemand("GW", $dumRQ, $demand[GT_SND][GW] + 3 * $demand[GT_RCV][GW]);
PDQ_SetDemand("MF", $txRQ, $demand[MF_RQ][MF]);
PDQ_SetDemand("MF", $dumRQ, $demand[MF_RQ][MF]);
for ($i = 0; $i < MF_DISKS; $i++) {
PDQ_SetDemand($MDarray[$i]->label, $txRQ, $demand[MF_RQ][$MDarray[$i]->id]);
PDQ_SetDemand($MDarray[$i]->label, $dumRQ, $demand[MF_RQ][$MDarray[$i]->id]);
}
PDQ_SetDemand("TR", $txRQ, 1 * $demand[LAN_TX][PC] + 1 * $demand[LAN_TX][FS] + 3 * $demand[LAN_TX][GW] + 3 * $demand[LAN_TX][FS]);
PDQ_SetDemand("TR", $dumRQ, 1 * $demand[LAN_TX][PC] + 1 * $demand[LAN_TX][FS] + 3 * $demand[LAN_TX][GW] + 3 * $demand[LAN_TX][FS]);
// SU request + reply chain ...
PDQ_SetDemand($PCarray[0]->label, $txSU, $demand[SU_REQ][PC] + $demand[SU_RPY][PC]);
// PDQ_SetDemand($PCarray[1]->label, $dumSU,(($demand[SU_REQ][PC] + $demand[SU_RPY][PC])) / (USERS - 1));
PDQ_SetDemand("TR", $txSU, $demand[LAN_TX][PC]);
PDQ_SetDemand("TR", $dumSU, $demand[LAN_TX][PC]);
PDQ_SetDemand("FS", $txSU, $demand[REQ_SU][FS] + $demand[SU_MSG][FS]);
PDQ_SetDemand("FS", $dumSU, $demand[REQ_SU][FS] + $demand[SU_MSG][FS]);
for ($i = 0; $i < FS_DISKS; $i++) {
PDQ_SetDemand($FDarray[$i]->label, $txSU, $demand[REQ_SU][$FDarray[$i]->id] + $demand[SU_MSG][$FDarray[$i]->id]);
PDQ_SetDemand($FDarray[$i]->label, $dumSU, $demand[REQ_SU][$FDarray[$i]->id] + $demand[SU_MSG][$FDarray[$i]->id]);
}
PDQ_SetDemand("TR", $txSU, $demand[LAN_TX][FS]);
PDQ_SetDemand("TR", $dumSU, $demand[LAN_TX][FS]);
PDQ_SetDemand("GW", $txSU, $demand[GT_SND][GW] + $demand[GT_RCV][GW]);
PDQ_SetDemand("GW", $dumSU, $demand[GT_SND][GW] + $demand[GT_RCV][GW]);
PDQ_SetDemand("MF", $txSU, $demand[MF_SU][MF]);
PDQ_SetDemand("MF", $dumSU, $demand[MF_SU][MF]);
for ($i = 0; $i < MF_DISKS; $i++) {
PDQ_SetDemand($MDarray[$i]->label, $txSU, $demand[MF_SU][$MDarray[$i]->id]);
PDQ_SetDemand($MDarray[$i]->label, $dumSU, $demand[MF_SU][$MDarray[$i]->id]);
}
PDQ_SetDemand("TR", $txSU, 1 * $demand[LAN_TX][PC] + 1 * $demand[LAN_TX][FS] + 1 * $demand[LAN_TX][GW] + 1 * $demand[LAN_TX][FS]);
PDQ_SetDemand("TR", $dumSU, 1 * $demand[LAN_TX][PC] + 1 * $demand[LAN_TX][FS] + 1 * $demand[LAN_TX][GW] + 1 * $demand[LAN_TX][FS]);
PDQ_Solve(CANON);
PDQ_Report();
// Break out Tx response times and device utilizations ...
printf("*** PDQ Breakout \"%s\" (%d clients) ***\n\n", $scenario, USERS);
for ($dev = 0; $dev < $noNodes; $dev++) {
$util[$dev] = 0.0;
/* reset array */
for ($work = 0; $work < $noStreams; $work++) {
$util[$dev] += 100 * PDQ_GetUtilization($node[$dev]->devname, $job[$work]->trans->name, TRANS);
}
}
printf("Transaction \tLatency(Secs)\n");
printf("----------- \t-----------\n");
for ($work = 0; $work < $noStreams; $work++) {
printf("%s\t%7.4f\n", $job[$work]->trans->name, $job[$work]->trans->sys->response);
}
printf("\n\n");
for ($dev = 0; $dev < $noNodes; $dev++) {
// for ($i = 0; $i < USERS; $i++)
for ($i = 0; $i < 2; $i++) {
if ($node[$dev]->devname == $PCarray[$i]->label) {
$upc[$i] += $util[$dev];
}
// SZ NOTE: In the original C version you use upc but you have never initialized it!!
}
if ($node[$dev]->devname == "GW") {
$ugw += $util[$dev];
}
if ($node[$dev]->devname == "FS") {
$ufs += $util[$dev];
}
for ($i = 0; $i < FS_DISKS; $i++) {
if ($node[$dev]->devname == $FDarray[$i]->label) {
$udsk[$i] += $util[$dev];
}
// SZ NOTE: In the original C version you use udsk but you have never initialized it!!
}
if ($node[$dev]->devname == "MF") {
$umf += $util[$dev];
}
for ($i = 0; $i < MF_DISKS; $i++) {
if ($node[$dev]->devname == $MDarray[$i]->label) {
$udasd[$i] += $util[$dev];
}
// SZ NOTE: In the original C version you use udasd but you have never initialized it!!
}
if ($node[$dev]->devname == "TR") {
$ulan += $util[$dev];
}
}
printf("Node \t%% Utilization\n");
printf("---- \t--------------\n");
printf("%s\t%7.4f\n", "Token Ring ", $ulan);
printf("%s\t%7.4f\n", "Desktop PC ", $upc[0]);
printf("%s\t%7.4f\n", "FileServer ", $ufs);
for ($i = 0; $i < FS_DISKS; $i++) {
printf("%s%d\t%7.4f\n", "FS Disk", $FDarray[$i]->id, $udsk[$i]);
}
printf("%s\t%7.4f\n", "Gateway SNA", $ugw);
printf("%s\t%7.4f\n", "Mainframe ", $umf);
for ($i = 0; $i < MF_DISKS; $i++) {
printf("%s%d\t%7.4f\n", "MFrame DASD", $MDarray[$i]->id, $udasd[$i]);
}
}
function main()
{
global $job;
$model = "Middleware I";
$work = "eBiz-tx";
$node1 = "WebServer";
$node2 = "AppServer";
$node3 = "DBMServer";
$think = 0.0 * 0.001;
// treated as free param
// Added dummy servers for calibration
$node4 = "DummySvr";
// User loads employed in WAS tool ...
$noNodes = 0;
$noStreams = 0;
$users = 0;
$u1pdq = array();
// double [MAXUSERS+1];
$u2pdq = array();
// double [MAXUSERS+1];
$u3pdq = array();
// double [MAXUSERS+1];
$u1err = array();
// double [MAXUSERS+1];
$u2err = array();
// double [MAXUSERS+1];
$u3err = array();
// double [MAXUSERS+1];
// Utilization data from the paper ...
// In this example the following vectros contain zero value, so on line 106/107/108 can cause division by zero error!!
$u1dat = array(0.0, 21.0, 41.0, 0.0, 74.0, 0.0, 0.0, 95.0, 0.0, 0.0, 96.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 96.0);
// double [MAXUSERS+1]
$u2dat = array(0.0, 8.0, 13.0, 0.0, 20.0, 0.0, 0.0, 23.0, 0.0, 0.0, 22.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 22.0);
// double [MAXUSERS+1]
$u3dat = array(0.0, 4.0, 5.0, 0.0, 5.0, 0.0, 0.0, 5.0, 0.0, 0.0, 6.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 6.0);
// double [MAXUSERS+1]
// Output header ...
printf("\n");
printf("(Tx: \"%s\" for \"%s\")\n\n", $work, $model);
printf("Client delay Z=%5.2f mSec. (Assumed)\n\n", $think * 1000.0);
printf("%3s\t%6s %6s %6s %6s %6s\n", " N ", " X ", " R ", "%Uws", "%Uas", "%Udb");
printf("%3s\t%6s %6s %6s %6s %6s\n", "---", "------", "------", "------", "------", "------");
for ($users = 1; $users <= MAXUSERS; $users++) {
PDQ_Init($model);
$noStreams = PDQ_CreateClosed($work, TERM, (double) $users, $think);
$noNodes = PDQ_CreateNode($node1, CEN, FCFS);
$noNodes = PDQ_CreateNode($node2, CEN, FCFS);
$noNodes = PDQ_CreateNode($node3, CEN, FCFS);
$noNodes = PDQ_CreateNode($node4, CEN, FCFS);
//$noNodes = PDQ_CreateNode($node5, CEN, FCFS);
//$noNodes = PDQ_CreateNode($node6, CEN, FCFS);
// NOTE: timebase is seconds
PDQ_SetDemand($node1, $work, 9.800000000000001 * 0.001);
PDQ_SetDemand($node2, $work, 2.5 * 0.001);
PDQ_SetDemand($node3, $work, 0.72 * 0.001);
// dummy (network) nodes ...
PDQ_SetDemand($node4, $work, 9.800000000000001 * 0.001);
PDQ_Solve(EXACT);
// set up for error analysis of utilzations
$u1pdq[$users] = PDQ_GetUtilization($node1, $work, TERM) * 100;
$u2pdq[$users] = PDQ_GetUtilization($node2, $work, TERM) * 100;
$u3pdq[$users] = PDQ_GetUtilization($node3, $work, TERM) * 100;
$u1err[$users] = 100 * ($u1pdq[$users] - $u1dat[$users]) / $u1dat[$users];
// cause division by zero error due to u1dat vector initialization
$u2err[$users] = 100 * ($u2pdq[$users] - $u2dat[$users]) / $u2dat[$users];
// cause division by zero error due to u2dat vector initialization
$u3err[$users] = 100 * ($u3pdq[$users] - $u3dat[$users]) / $u3dat[$users];
// cause division by zero error due to u3dat vector initialization
printf("%3d\t%6.2f %6.2f %6.2f %6.2f %6.2f\n", $users, PDQ_GetThruput(TERM, $work), PDQ_GetResponse(TERM, $work) * 1000.0, $u1pdq[$users], $u2pdq[$users], $u3pdq[$users]);
}
// for user
printf("\nError Analysis of Utilizations\n\n");
printf("%3s\t%12s %12s %12s\n", " ", " WS ", " AS ", " DB ");
printf("%3s\t%12s %12s %12s\n", " ", "----------------------", "----------------------", "----------------------");
printf("%3s ", " N ");
printf("%6s %6s %6s ", "%Udat", "%Updq", "%Uerr");
printf("%6s %6s %6s ", "%Udat", "%Updq", "%Uerr");
printf("%6s %6s %6s\n", "%Udat", "%Updq", "%Uerr");
printf("%3s ", "---");
printf("%6s %6s %6s ", "-----", "-----", "-----");
printf("%6s %6s %6s ", "-----", "-----", "-----");
printf("%6s %6s %6s\n", "-----", "-----", "-----");
for ($users = 1; $users <= MAXUSERS; $users++) {
switch ($users) {
case 1:
case 2:
case 4:
case 7:
case 10:
case 20:
printf("%3d\t%5.2f\t%5.2f\t%5.2f", $users, $u1dat[$users], $u1pdq[$users], $u1err[$users]);
printf("\t%5.2f\t%5.2f\t%5.2f", $u2dat[$users], $u2pdq[$users], $u2err[$users]);
printf("\t%5.2f\t%5.2f\t%5.2f\n", $u3dat[$users], $u3pdq[$users], $u3err[$users]);
break;
default:
break;
}
}
printf("\n");
// Uncomment the following line for a standard PDQ summary.
PDQ_Report();
}
function main()
{
global $nodes, $streams;
$cname = "";
/* cache id */
$wname = "";
/* workload */
$i = 0;
/* per CPU intruction stream intensity */
$Prhit = RD * HT;
$Pwhit = WR * HT * (1 - WUMD) + WR * (1 - HT) * (1 - MD);
$Prdop = RD * (1 - HT);
$Pwbop = WR * (1 - HT) * MD;
$Pwthr = WR;
$Pinvl = WR * HT * WUMD;
$Nrwht = 0.8075 * MAXCPU;
$Nrdop = 0.08500000000000001 * MAXCPU;
$Nwthr = 0.15 * MAXCPU;
$Nwbop = 0.0003 * MAXCPU * 100;
$Ninvl = 0.015 * MAXCPU;
$Srdop = 20.0;
$Swthr = 25.0;
$Swbop = 20.0;
$Wrwht = 0.0;
$Wrdop = 0.0;
$Wwthr = 0.0;
$Wwbop = 0.0;
$Winvl = 0.0;
$Zrwht = ZX;
$Zrdop = ZX;
$Zwbop = ZX;
$Zinvl = ZX;
$Zwthr = ZX;
$Xcpu = 0.0;
$Pcpu = 0.0;
$Ubrd = 0.0;
$Ubwr = 0.0;
$Ubin = 0.0;
$Ucht = 0.0;
$Ucrd = 0.0;
$Ucwr = 0.0;
$Ucin = 0.0;
$model = "ABC Model";
PDQ_Init($model);
PDQ_SetWUnit("Reqs");
PDQ_SetTUnit("Cycs");
/* create single bus queueing center */
$nodes = PDQ_CreateNode(BUS, CEN, FCFS);
/* create per CPU cache queueing centers */
for ($i = 0; $i < MAXCPU; $i++) {
namex($i, L2C, $cname);
$nodes = PDQ_CreateNode($cname, CEN, FCFS);
}
/* create CPU nodes, workloads, and demands */
for ($i = 0; $i < intwt($Nrwht, $Wrwht); $i++) {
namex($i, RWHT, $wname);
$streams = PDQ_CreateClosed($wname, TERM, $Nrwht, $Zrwht);
namex($i, L2C, $cname);
PDQ_SetDemand($cname, $wname, 1.0);
PDQ_SetDemand(BUS, $wname, 0.0);
/* no bus activity */
}
for ($i = 0; $i < intwt($Nrdop, $Wrdop); $i++) {
namex($i, RDOP, $wname);
$streams = PDQ_CreateClosed($wname, TERM, $Nrdop, $Zrdop);
namex($i, L2C, $cname);
PDQ_SetDemand($cname, $wname, GEN);
/* generate bus request */
PDQ_SetDemand(BUS, $wname, $Srdop);
/* req + async data return */
}
if (WBACK) {
for ($i = 0; $i < intwt($Nwbop, $Wwbop); $i++) {
namex($i, WROP, $wname);
$streams = PDQ_CreateClosed($wname, TERM, $Nwbop, $Zwbop);
namex($i, L2C, $cname);
PDQ_SetDemand($cname, $wname, GEN);
PDQ_SetDemand(BUS, $wname, $Swbop);
/* asych write to memory ? */
}
} else {
/* write-thru */
for ($i = 0; $i < intwt($Nwthr, $Wwthr); $i++) {
namex($i, WROP, $wname);
$streams = PDQ_CreateClosed($wname, TERM, $Nwthr, $Zwthr);
namex($i, L2C, $cname);
PDQ_SetDemand($cname, $wname, GEN);
PDQ_SetDemand(BUS, $wname, $Swthr);
}
}
if (WBACK) {
for ($i = 0; $i < intwt($Ninvl, $Winvl); $i++) {
namex($i, INVL, $wname);
$streams = PDQ_CreateClosed($wname, TERM, $Ninvl, $Zinvl);
namex($i, L2C, $cname);
PDQ_SetDemand($cname, $wname, GEN);
/* GEN + intervene */
PDQ_SetDemand(BUS, $wname, 1.0);
}
}
PDQ_Solve(APPROX);
/* bus utilizations */
for ($i = 0; $i < intwt($Nrdop, $Wrdop); $i++) {
namex($i, RDOP, $wname);
$Ubrd += PDQ_GetUtilization(BUS, $wname, TERM);
}
$Ubrd *= $Wrdop;
if (WBACK) {
for ($i = 0; $i < intwt($Nwbop, $Wwbop); $i++) {
namex($i, WROP, $wname);
$Ubwr += PDQ_GetUtilization(BUS, $wname, TERM);
}
$Ubwr *= $Wwbop;
for ($i = 0; $i < intwt($Ninvl, $Winvl); $i++) {
namex($i, INVL, $wname);
$Ubin += PDQ_GetUtilization(BUS, $wname, TERM);
}
$Ubin *= $Winvl;
} else {
/* write-thru */
for ($i = 0; $i < intwt($Nwthr, $Wwthr); $i++) {
namex($i, WROP, $wname);
$Ubwr += PDQ_GetUtilization(BUS, $wname, TERM);
}
$Ubwr *= $Wwthr;
}
/* cache measures at CPU[0] only */
$i = 0;
namex($i, L2C, $cname);
namex($i, RWHT, $wname);
$Xcpu = PDQ_GetThruput(TERM, $wname) * $Wrwht;
$Pcpu += $Xcpu * $Zrwht;
$Ucht = PDQ_GetUtilization($cname, $wname, TERM) * $Wrwht;
namex($i, RDOP, $wname);
$Xcpu = PDQ_GetThruput(TERM, $wname) * $Wrdop;
$Pcpu += $Xcpu * $Zrdop;
$Ucrd = PDQ_GetUtilization($cname, $wname, TERM) * $Wrdop;
$Pcpu *= 1.88;
if (WBACK) {
namex($i, WROP, $wname);
$Ucwr = PDQ_GetUtilization($cname, $wname, TERM) * $Wwbop;
namex($i, INVL, $wname);
$Ucin = PDQ_GetUtilization($cname, $wname, TERM) * $Winvl;
} else {
/* write-thru */
namex($i, WROP, $wname);
$Ucwr = PDQ_GetUtilization($cname, $wname, TERM) * $Wwthr;
}
printf("\n**** %s Results ****\n", $model);
printf("PDQ nodes: %d PDQ streams: %d\n", $nodes, $streams);
printf("Memory Mode: %s\n", WBACK ? "WriteBack" : "WriteThru");
printf("Ncpu: %2d\n", MAXCPU);
printf("Nrwht: %5.2f (N:%2d W:%5.2f)\n", $Nrwht, intwt($Nrwht, $Wrwht), $Wrwht);
printf("Nrdop: %5.2f (N:%2d W:%5.2f)\n", $Nrdop, intwt($Nrdop, $Wrdop), $Wrdop);
if (WBACK) {
printf("Nwbop: %5.2f (N:%2d W:%5.2f)\n", $Nwbop, intwt($Nwbop, $Wwbop), $Wwbop);
printf("Ninvl: %5.2f (N:%2d W:%5.2f)\n", $Ninvl, intwt($Ninvl, $Winvl), $Winvl);
} else {
printf("Nwthr: %5.2f (N:%2d W:%5.2f)\n", $Nwthr, intwt($Nwthr, $Wwthr), $Wwthr);
}
printf("\n");
printf("Hit Ratio: %5.2f %%\n", HT * 100.0);
printf("Read Miss: %5.2f %%\n", RD * (1 - HT) * 100.0);
printf("WriteMiss: %5.2f %%\n", WR * (1 - HT) * 100.0);
printf("Ucpu: %5.2f %%\n", $Pcpu * 100.0 / MAXCPU);
printf("Pcpu: %5.2f\n", $Pcpu);
printf("\n");
printf("Ubus[reads]: %5.2f %%\n", $Ubrd * 100.0);
printf("Ubus[write]: %5.2f %%\n", $Ubwr * 100.0);
printf("Ubus[inval]: %5.2f %%\n", $Ubin * 100.0);
printf("Ubus[total]: %5.2f %%\n", ($Ubrd + $Ubwr + $Ubin) * 100.0);
printf("\n");
printf("Uca%d[hits]: %5.2f %%\n", $i, $Ucht * 100.0);
printf("Uca%d[reads]: %5.2f %%\n", $i, $Ucrd * 100.0);
printf("Uca%d[write]: %5.2f %%\n", $i, $Ucwr * 100.0);
printf("Uca%d[inval]: %5.2f %%\n", $i, $Ucin * 100.0);
printf("Uca%d[total]: %5.2f %%\n", $i, ($Ucht + $Ucrd + $Ucwr + $Ucin) * 100.0);
}
function main()
{
global $job;
$noNodes = 0;
$noStreams = 0;
$users = 0;
$delta = 0;
$model = "IIS Server";
$work = "http GET 20KB";
$node1 = "CPU";
$node2 = "DSK";
$node3 = "NET";
$node4 = "Dummy";
$think = 1.5 * 0.001;
$u2demand = 0.1 * 0.001;
$u1pdq = array(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
// array of double [11]
$u2pdq = array(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
// array of double [11]
$u3pdq = array(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
// array of double [11]
$u1err = array(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
// array of double [11]
$u2err = array(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
// array of double [11]
$u3err = array(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
// array of double [11]
// Utilization data from the paper ...
$u1dat = array(0.0, 9.0, 14.0, 17.0, 21.0, 24.0, 26.0, 0.0, 0.0, 0.0, 26.0);
// this can cause division by zero error
$u2dat = array(0.0, 2.0, 2.0, 2.0, 2.0, 2.0, 2.0, 0.0, 0.0, 0.0, 2.0);
// this can cause division by zero error
$u3dat = array(0.0, 26.0, 46.0, 61.0, 74.0, 86.0, 92.0, 0.0, 0.0, 0.0, 94.0);
// this can cause division by zero error
// Output main header ...
printf("\n");
printf("(Tx: \"%s\" for \"%s\")\n\n", $work, $model);
printf("Client delay Z=%5.2f mSec. (Assumed)\n\n", $think * 1000.0);
printf("%3s\t%6s %6s %6s %6s %6s\n", " N ", " X ", " R ", "%Ucpu", "%Udsk", "%Unet");
printf("%3s\t%6s %6s %6s %6s %6s\n", "---", "------", "------", "------", "------", "------");
for ($users = 1; $users <= 10; $users++) {
PDQ_Init($model);
$noStreams = PDQ_CreateClosed($work, TERM, (double) $users, $think);
$noNodes = PDQ_CreateNode($node1, CEN, FCFS);
$noNodes = PDQ_CreateNode($node2, CEN, FCFS);
$noNodes = PDQ_CreateNode($node3, CEN, FCFS);
$noNodes = PDQ_CreateNode($node4, CEN, FCFS);
// NOTE: timebase is seconds
PDQ_SetDemand($node1, $work, 0.44 * 0.001);
PDQ_SetDemand($node2, $work, $u2demand);
/* make load-indept */
PDQ_SetDemand($node3, $work, 1.45 * 0.001);
PDQ_SetDemand($node4, $work, 1.6 * 0.001);
PDQ_Solve(EXACT);
// set up for error analysis of utilzations
$u1pdq[$users] = PDQ_GetUtilization($node1, $work, TERM) * 100;
$u2pdq[$users] = PDQ_GetUtilization($node2, $work, TERM) * 100;
$u3pdq[$users] = PDQ_GetUtilization($node3, $work, TERM) * 100;
$u1err[$users] = 100 * ($u1pdq[$users] - $u1dat[$users]) / $u1dat[$users];
// raise division by zero error!!
$u2err[$users] = 100 * ($u2pdq[$users] - $u2dat[$users]) / $u2dat[$users];
// raise division by zero error!!
$u3err[$users] = 100 * ($u3pdq[$users] - $u3dat[$users]) / $u3dat[$users];
// raise division by zero error!!
$u2demand = 0.015 / PDQ_GetThruput(TERM, $work);
/* http GETs-per-second */
/* milliseconds */
printf("%3d\t%6.2f %6.2f %6.2f %6.2f %6.2f\n", $users, PDQ_GetThruput(TERM, $work), PDQ_GetResponse(TERM, $work) * 1000.0, $u1pdq[$users], $u2pdq[$users], $u3pdq[$users]);
}
printf("\nError Analysis of Utilizations\n\n");
printf("%3s\t%12s %12s %12s\n", " ", " CPU ", " DSK ", " NET ");
printf("%3s\t%12s %12s %12s\n", " ", "----------------------", "----------------------", "----------------------");
printf("%3s ", " N ");
printf("%6s %6s %6s ", "%Udat", "%Updq", "%Uerr");
printf("%6s %6s %6s ", "%Udat", "%Updq", "%Uerr");
printf("%6s %6s %6s\n", "%Udat", "%Updq", "%Uerr");
printf("%3s ", "---");
printf("%6s %6s %6s ", "-----", "-----", "-----");
printf("%6s %6s %6s ", "-----", "-----", "-----");
printf("%6s %6s %6s\n", "-----", "-----", "-----");
for ($users = 1; $users <= 10; $users++) {
if ($users <= 6 || $users == 10) {
printf("%3d\t%5.2f\t%5.2f\t%5.2f", $users, $u1dat[$users], $u1pdq[$users], $u1err[$users]);
printf("\t%5.2f\t%5.2f\t%5.2f", $u2dat[$users], $u2pdq[$users], $u2err[$users]);
printf("\t%5.2f\t%5.2f\t%5.2f\n", $u3dat[$users], $u3pdq[$users], $u3err[$users]);
}
}
printf("\n");
}