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3333 V11 C984(Syntax:)S720 H3463 V1248(pf=filename)S2370(The)S2634(data)S2964(pattern)S3492(file)S3822(to)S4020(use.)S720 H3694 V12 B720(4.4)S942(Block)S1272(Size)S1515(")S12 I1582(bs=)S12 B1771(")S1874(Option.)S720 H3860 V11 R970(This)S1218(option)S1552(speci\256es)S1982(the)S2168(block)S2464(size,)S2714(in)S2852(bytes,)S3164(to)S3302(use)S3500(during)S3839(testing.)S4246(At)S4408(the)S4594(present)S4963(time,)S5240(this)S720 H3990 V720(option)S1042(sets)S1247(both)S1483(the)S1657(input)S1924(and)S2121(output)S2442(block)S2725(sizes.)S3038(At)S3187(the)S3360(time)S3595(I)S3670(originally)S4137(wrote)S4425(this)S4624(program,)S5062(I)S5137(didn't)S720 H4120 V720(have)S966(the)S1140(need)S1386(for)S1553(seperate)S1950(block)S2234(sizes,)S2515(but)S2696(this)S2897(may)S3127(change)S3477(in)S3604(a)S3693(future)S3995(release)S4338(where)S4645(I'll)S4820(add)S5019(back)S5266(the)S720 H4250 V720(")S11 I765(ibs=)S11 R969(")S1047(&)S1166(")S11 I1211(obs=)S11 R1439(")S1517(options)S1875(available)S2303(with)S11 I2532(dd)S11 R2642(.)S720 H4445 V720(Special)S1076(Notes:)S720 H4575 V732( )S12 R930(\267)S11 R1105(When)S1421(enabling)S1854(variable)S2261(length)S2591(records)S2967(via)S3156(the)S3345(")S11 I3390(min=)S11 R3630(")S3730(option,)S4095(this)S4310(also)S4542(sets)S4763(the)S4953(maximum)S720 H4705 V1105(record)S1416(size)S1619(to)S1738(be)S1874(written/read.)S720 H4835 V732( )S12 R930(\267)S11 R1105(For)S1294(memory)S1696(mapped)S2079(\256les,)S2327(the)S2497(block)S2777(size)S11 I2983(must)S11 R3228(be)S3368(a)S3453(multiple)S3858(of)S3986(the)S4157(system)S4500(dependent)S4987(page)S5230(size)S720 H4965 V1105(\(normally)S1571(4k)S1714(or)S1838(8k)S1981(bytes\).)S720 H5196 V11 C984(Syntax:)S720 H5326 V1248(bs=value)S2370(The)S2634(block)S3030(size)S3360(to)S3558(read/write.)S720 H5557 V12 B720(4.5)S942(Log)S1178(File)S1408(")S12 I1475(log=)S12 B1711(")S1814(Option.)S720 H5723 V11 R970(This)S1202(option)S1521(speci\256es)S1936(the)S2107(log)S2285(\256le)S2463(to)S2586(redirect)S2956(all)S3103(program)S3511(output)S3830(to.)S4014(This)S4247(is)S4358(done)S4608(by)S4755(re-opening)S5266(the)S720 H5853 V720(standard)S1141(error)S1401(stream)S1742(\(stderr\))S2112(to)S2247(the)S2430(specifed)S2843(log)S3033(\256le.)S3284(Since)S3577(all)S3736(output)S4067(from)S11 I4329(dt)S11 R4464(is)S4587(directed)S4988(to)S5123(stderr,)S720 H5983 V720(library)S1045(functions)S1487(such)S1721(as)S1845(perror\(\))S2216(also)S2426(write)S2684(to)S2803(this)S2996(log)S3170(\256le.)S720 H6178 V720(Special)S1076(Notes:)S720 H6308 V732( )S12 R930(\267)S11 R1105(A)S1230(seperate)S1633(bu)S1743 H (f)show 11 -.5 mul h (f)show11 R1811(er)S1941(is)S2061(allocated)S2502(for)S2675(the)S2855(stderr)S3150(stream,)S3516(and)S3720(this)S3926(stream)S4264(is)S4385(set)S4554(bu)S4664 H (f)show 11 -.5 mul h (f)show11 R4732(ered)S4966(so)S5111(timing)S720 H6438 V1105(isn't)S1334(a)S1382 H (f)show 11 -.5 mul h (f)show11 R1450(ected)S1713(by)S1856(program)S2260(output.)S720 H6568 V732( )S12 R930(\267)S11 R1105(When)S1401(starting)S1766(multiple)S2169(processes)S2623(via)S2792(the)S2961(")S11 I3006(procs=)S11 R3325(")S3405(option,)S3750(all)S3895(output)S4212(is)S4321(directed)S4708(to)S4829(the)S4998(same)S5259(log)S720 H6698 V1105(\256le.)S1344(The)S1551(output)S1870(from)S2120(each)S2356(process)S2721(is)S2831(identi\256ed)S3283(by)S3429(the)S3599(process)S3963(ID)S4114(\(PID\))S4399(as)S4526(part)S4732(of)S4859(the)S5029(message)S720 H6828 V1105(\(errors)S1428(&)S1547(statistics\).)S720 H7690 V2909(Page 4)S7920 VEP%%PageTrailer%DEC_EDMS_Folio: 6%%Page: 5 7BP/slant 0 def/height 1.000000 def11 R11 R720 H670 V11 I720(Users Manual for)S4507(February 2nd, 2001)S720 H800 V720(dt - Data Test Program)S4832(Version 14.1)S720 H1210 V11 C984(Syntax:)S720 H1340 V1248(log=filename)S2370(The)S2634(log)S2898(file)S3228(name)S3558(to)S3756(write.)S720 H1571 V12 B720(4.6)S942(POSIX)S1345(Asynchronous)S2115(I/O)S2326(")S12 I2393(aios=)S12 B2676(")S2779(Option.)S720 H1737 V11 R970(This)S1200(option)S1516(enables)S1879(and)S2072(controls)S2461(the)S2630(number)S3000(of)S3126(POSIX)S3479(Asychronous)S4093(I/O)S4274(requests)S4668(used)S4904(by)S5049(the)S5218(pro-)S720 H1867 V720(gram.)S720 H2062 V720(Special)S1076(Notes:)S720 H2192 V732( )S12 R930(\267)S11 R1105(The)S1308(default)S1645(is)S1752(to)S1871(queue)S2165(up)S2308(to)S2427(8)S2515(requests.)S720 H2322 V732( )S12 R930(\267)S11 R1105(This)S1334(option)S1649(is)S1756(only)S1985(valid)S2238(for)S2398(Tru64)S2699(UNIX)S3005(systems)S3387(are)S3552(this)S3745(time.)S720 H2452 V732( )S12 R930(\267)S11 R1105(The)S1333(system)S1697(limit)S1965(for)S2150(AIO)S2402(on)S2570(Tru64)S2896(UNIX)S3227(is)S3359(dynamic,)S3823(and)S4040(can)S4250(be)S4412(queried)S4799(by)S4968(using)S5266(the)S720 H2582 V1105(")S11 I1150(syscon\256g)S1585(-q)S1709(rt)S11 R1783(")S1861(command.)S720 H2712 V732( )S12 R930(\267)S11 R1105(You)S1327(can)S1511(use)S1690(the)S1857(")S11 I1902(enable=aio)S11 R2410(")S2488(option)S2803(to)S2922(enable)S3240(AIO)S3467(and)S3658(use)S3837(the)S4004(default)S4341(request)S4690(limit.)S720 H2842 V732( )S12 R930(\267)S11 R1105(AIO)S1345(is)S1465(only)S1707(supported)S2186(for)S2359(character)S2803(devices)S3177(and)S3381(is)S3501(disabled)S3913(for)S4086(terminals.)S4603(On)S4784(Tru64)S5099(UNIX,)S720 H2972 V1105(you)S1310(can)S1501(alter)S1735(the)S1909(Make\256le)S2339(and)S2537(link)S2749(against)S3100(libaio.a,)S3495(which)S3803(allows)S4129(AIO)S4362(with)S4597(any)S4794(device/\256le)S5290(by)S720 H3102 V1105(mimic'ing)S1597(AIO)S1824(using)S2096(POSIX)S2447(threads.)S720 H3232 V732( )S12 R930(\267)S11 R1105(AIO)S1332(requests)S1724(can)S11 B1908(not)S11 R2095(be)S2232(cancelled)S2678(on)S2822(Tru64)S3124(UNIX,)S3459(so)S3591(queuing)S3979(many)S4257(requests)S4650(to)S4770(1/2")S4990(tape)S5206(dev-)S720 H3362 V1105(ices)S1314(will)S1525(probably)S1954(result)S2236(in)S2360(running)S2740(o)S2795 H (f)show 11 -.5 mul h (f)show11 R2901(the)S3073(end)S3269(of)S3398(the)S3570(tape)S3790(reel.)S4052(This)S4286(is)S4398(not)S4577(a)S4663(problem)S5067(for)S5232(car-)S720 H3492 V1105(tridge)S1394(tapes.)S720 H3723 V11 C984(Syntax:)S720 H3853 V1248(aios=value)S2370(Set)S2634(number)S3096(of)S3294(AIO's)S3690(to)S3888(queue.)S720 H4084 V12 B720(4.7)S942(Bu)S1089 H (f)show 12 -.5 mul h (f)show12 B1163(er)S1305(Alignment)S1882(")S12 I1949(align=)S12 B2279(")S2382(Option.)S720 H4250 V11 R970(This)S1201(option)S1518(controls)S1907(the)S2076(alignment)S2551(of)S2677(the)S2846(normally)S3278(page)S3519(aligned)S3878(data)S4096(bu)S4206 H (f)show 11 -.5 mul h (f)show11 R4274(er)S4394(allocated.)S4886(This)S5118(option)S720 H4380 V720(is)S828(often)S1087(useful)S1389(for)S1550(testing)S1878(certain)S2209(DMA)S2499(boundary)S2947(conditions)S3440(not)S3615(easily)S3904(reproduced)S4428(otherwise.)S4948(The)S5151(rotate)S720 H4510 V720(option)S1038(automatically)S1672(adjust)S1971(the)S2141(data)S2359(bu)S2469 H (f)show 11 -.5 mul h (f)show11 R2537(er)S2657(pointer)S3004(by)S3150(\(0,)S3305(1,)S3424(2,)S3543(3,)S3662(...\))S3818(for)S3981(each)S4216(I/O)S4398(request)S4750(to)S4872(ensure)S5194(vari-)S720 H4640 V720(ous)S906(boundaries)S1420(are)S1585(fully)S1826(tested.)S720 H4835 V11 C984(Syntax:)S720 H4965 V1248(align=offset)S2370(Set)S2634(offset)S3096(within)S3558(page)S3888(aligned)S4416(buffer.)S720 H5095 V984(or)S1248(align=rotate)S2370(Rotate)S2832(data)S3162(address)S3690(through)S4218(sizeof\(ptr\).)S720 H5326 V12 B720(4.8)S942(File)S1172(Disposition)S1784(")S12 I1851(dispose=)S12 B2294(")S2397(Option.)S720 H5492 V11 R970(This)S1208(option)S1533(controls)S1930(the)S2107(disposition)S2635(of)S2769(test)S2965(\256les)S3192(created)S3549(on)S3702(\256le)S3886(systems.)S4339(By)S4511(default,)S4886(the)S5063(test)S5259(\256le)S720 H5622 V720(created)S1072(is)S1184(deleted)S1538(before)S1854(exiting,)S2226(but)S2405(sometimes)S2914(you)S3117(may)S3344(wish)S3590(to)S3713(keep)S3956(this)S4153(\256le)S4331(for)S4495(further)S4829(examination,)S720 H5752 V720(for)S895(use)S1089(as)S1228(a)S1324(pattern)S1676(\256le,)S1893(or)S2032(simply)S2382(for)S2558(the)S2741(read)S2977(verify)S3287(pass)S3525(of)S3665(another)S4042(test)S4244(\(e.g.,)S4516(reading)S4893(the)S5076(\256le)S5266(via)S720 H5882 V720(memory)S1119(map)S1341(API\).)S720 H6077 V11 C984(Syntax:)S720 H6207 V1248(dispose=mode)S2370(Set)S2634(file)S2964(dispose)S3492(to:)S3756(delete)S4218(or)S4416(keep.)S720 H6438 V12 B720(4.9)S942(Dump)S1298(Data)S1580(Limit)S1904(")S12 I1971(dlimit=)S12 B2335(")S2438(Option.)S720 H6604 V11 R970(This)S1203(option)S1522(allows)S1846(you)S2048(to)S2171(specify)S2524(the)S2695(dump)S2983(data)S3202(limit)S3449(used)S3688(when)S3963(data)S4183(compare)S4597(errors)S4889(occur.)S5230(The)S720 H6734 V720(default)S1057(dump)S1341(data)S1556(limit)S1799(is)S1906(64)S2049(bytes.)S720 H6929 V11 C984(Syntax:)S720 H7059 V1248(dlimit=value)S2370(Sets)S2700(the)S2964(data)S3294(dump)S3624(limit)S4020(to)S4218(value.)S720 H7690 V11 R2909(Page 5)S7920 VEP%%PageTrailer%DEC_EDMS_Folio: 7%%Page: 6 8BP/slant 0 def/height 1.000000 def11 R11 R720 H670 V11 I720(Users Manual for)S4507(February 2nd, 2001)S720 H800 V720(dt - Data Test Program)S4832(Version 14.1)S720 H1210 V12 B720(4.10)S1002(Device)S1377(Size)S1620(")S12 I1687(dsize=)S12 B2010(")S2113(Option.)S720 H1376 V11 R970(This)S1209(option)S1534(allows)S1864(you)S2072(to)S2201(specify)S2560(the)S2737(device)S3065(block)S3352(size)S3565(used.)S3870(On)S4047(Tru64)S4358(Unix,)S4649(the)S4827(device)S5156(block)S720 H1506 V720(size)S929(is)S1042(obatined)S1459(automatically)S2096(by)S2245(an)S2387(OS)S2567(speci\256c)S2941(IOCTL.)S3364(For)S3556(all)S3705(other)S3968(systems,)S4383(random)S4756(access)S5072(devices)S720 H1636 V720(default)S1058(to)S1178(512)S1377(byte)S1600(blocks.)S1982(You'll)S2303(likely)S2588(use)S2768(this)S2963(option)S3280(with)S3511(C/DVD's,)S3995(since)S4255(their)S4491(default)S4830(block)S5109(size)S5314(to)S720 H1766 V720(2048)S973(bytes)S1238(per)S1410(block.)S720 H1961 V11 C984(Syntax:)S720 H2091 V1248(dsize=value)S2370(Set)S2634(the)S2898(device)S3360(block)S3756(\(sector\))S4350(size.)S720 H2322 V12 B720(4.11)S1002(Device)S1377(Type)S1673(")S12 I1740(dtype=)S12 B2082(")S2185(Option.)S720 H2524 V720(4.12)S1002(Input)S1326(Device)S1701(Type)S1997(")S12 I2064(idtype=)S12 B2440(")S2543(Option.)S720 H2726 V720(4.13)S1002(Output)S1413(Device)S1788(Type)S2084(")S12 I2151(odtype=)S12 B2553(")S2656(Option.)S720 H2892 V11 R970(These)S1269(options)S1632(provide)S2005(a)S2091(method)S2459(to)S2583(inform)S11 I2920(dt)S11 R3044(of)S3173(the)S3345(type)S3572(of)S3701(device)S4025(test)S4217(to)S4342(be)S4484(performed.)S5039(Without)S720 H3022 V720(this)S913(knowledge,)S1455(only)S1684(generic)S2038(testing)S2365(is)S2472(possible.)S720 H3217 V⌨️ 快捷键说明
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