+John Teacake MVC Posted April 21, 2013 MVC Share Posted April 21, 2013 Hi All, I have been playing around with some Compiler Optimizations in the Linux Kernel. I want to know what your results are if you run this in a terminal. Whats your Hardware and whats your kernel version? time echo "scale=5000; a(1)*4" | bc -l[/CODE] Link to comment Share on other sites More sharing options...
Mindovermaster Moderator Posted April 21, 2013 Moderator Share Posted April 21, 2013 3.141592653589793238462643383279502884197169399375105820974944592307\81640628620899862803482534211706798214808651328230664709384460955058\22317253594081284811174502841027019385211055596446229489549303819644\28810975665933446128475648233786783165271201909145648566923460348610\45432664821339360726024914127372458700660631558817488152092096282925\40917153643678925903600113305305488204665213841469519415116094330572\70365759591953092186117381932611793105118548074462379962749567351885\75272489122793818301194912983367336244065664308602139494639522473719\07021798609437027705392171762931767523846748184676694051320005681271\45263560827785771342757789609173637178721468440901224953430146549585\37105079227968925892354201995611212902196086403441815981362977477130\99605187072113499999983729780499510597317328160963185950244594553469\08302642522308253344685035261931188171010003137838752886587533208381\42061717766914730359825349042875546873115956286388235378759375195778\18577805321712268066130019278766111959092164201989380952572010654858\63278865936153381827968230301952035301852968995773622599413891249721\77528347913151557485724245415069595082953311686172785588907509838175\46374649393192550604009277016711390098488240128583616035637076601047\10181942955596198946767837449448255379774726847104047534646208046684\25906949129331367702898915210475216205696602405803815019351125338243\00355876402474964732639141992726042699227967823547816360093417216412\19924586315030286182974555706749838505494588586926995690927210797509\30295532116534498720275596023648066549911988183479775356636980742654\25278625518184175746728909777727938000816470600161452491921732172147\72350141441973568548161361157352552133475741849468438523323907394143\33454776241686251898356948556209921922218427255025425688767179049460\16534668049886272327917860857843838279679766814541009538837863609506\80064225125205117392984896084128488626945604241965285022210661186306\74427862203919494504712371378696095636437191728746776465757396241389\08658326459958133904780275900994657640789512694683983525957098258226\20522489407726719478268482601476990902640136394437455305068203496252\45174939965143142980919065925093722169646151570985838741059788595977\29754989301617539284681382686838689427741559918559252459539594310499\72524680845987273644695848653836736222626099124608051243884390451244\13654976278079771569143599770012961608944169486855584840635342207222\58284886481584560285060168427394522674676788952521385225499546667278\23986456596116354886230577456498035593634568174324112515076069479451\09659609402522887971089314566913686722874894056010150330861792868092\08747609178249385890097149096759852613655497818931297848216829989487\22658804857564014270477555132379641451523746234364542858444795265867\82105114135473573952311342716610213596953623144295248493718711014576\54035902799344037420073105785390621983874478084784896833214457138687\51943506430218453191048481005370614680674919278191197939952061419663\42875444064374512371819217999839101591956181467514269123974894090718\64942319615679452080951465502252316038819301420937621378559566389377\87083039069792077346722182562599661501421503068038447734549202605414\66592520149744285073251866600213243408819071048633173464965145390579\62685610055081066587969981635747363840525714591028970641401109712062\80439039759515677157700420337869936007230558763176359421873125147120\53292819182618612586732157919841484882916447060957527069572209175671\16722910981690915280173506712748583222871835209353965725121083579151\36988209144421006751033467110314126711136990865851639831501970165151\16851714376576183515565088490998985998238734552833163550764791853589\32261854896321329330898570642046752590709154814165498594616371802709\81994309924488957571282890592323326097299712084433573265489382391193\25974636673058360414281388303203824903758985243744170291327656180937\73444030707469211201913020330380197621101100449293215160842444859637\66983895228684783123552658213144957685726243344189303968642624341077\32269780280731891544110104468232527162010526522721116603966655730925\47110557853763466820653109896526918620564769312570586356620185581007\29360659876486117910453348850346113657686753249441668039626579787718\55608455296541266540853061434443185867697514566140680070023787765913\44017127494704205622305389945613140711270004078547332699390814546646\45880797270826683063432858785698305235808933065757406795457163775254\20211495576158140025012622859413021647155097925923099079654737612551\76567513575178296664547791745011299614890304639947132962107340437518\95735961458901938971311179042978285647503203198691514028708085990480\10941214722131794764777262241425485454033215718530614228813758504306\33217518297986622371721591607716692547487389866549494501146540628433\66393790039769265672146385306736096571209180763832716641627488880078\69256029022847210403172118608204190004229661711963779213375751149595\01566049631862947265473642523081770367515906735023507283540567040386\74351362222477158915049530984448933309634087807693259939780541934144\73774418426312986080998886874132604720real 0m17.893suser 0m17.837ssys 0m0.028s[/CODE] What's that supposed to mean? :huh: Link to comment Share on other sites More sharing options...
Setnom Posted April 21, 2013 Share Posted April 21, 2013 Is that the number pi? Link to comment Share on other sites More sharing options...
Mindovermaster Moderator Posted April 21, 2013 Moderator Share Posted April 21, 2013 Pi is 1.34~ Link to comment Share on other sites More sharing options...
xxxxxx.xxxxxx Posted April 21, 2013 Share Posted April 21, 2013 Note to all: You should never mindlessly type commands into a console when asked without researching and understanding their function. Matthew_Thepc 1 Share Link to comment Share on other sites More sharing options...
+John Teacake MVC Posted April 21, 2013 Author MVC Share Posted April 21, 2013 Yeah I should have mentioned that it calculates Pi. Im a trust worthy member around here... Sort of :-p But yeah Note to all: You should never mindlessly type commands into a console when asked without researching and understanding their function. Yours does it faster than my hardware! Mine does it in 22seconds! ...What hardware are you running? Link to comment Share on other sites More sharing options...
Mindovermaster Moderator Posted April 21, 2013 Moderator Share Posted April 21, 2013 unless it says sudo, you won't do that much... I have an i5 3570K (no OC yet), and ASRock Extreme 3 Link to comment Share on other sites More sharing options...
+Majesticmerc MVC Posted April 21, 2013 MVC Share Posted April 21, 2013 3.141592653589793238462643383279502884197169399375105820974944592307\ 81640628620899862803482534211706798214808651328230664709384460955058\ 22317253594081284811174502841027019385211055596446229489549303819644\ 28810975665933446128475648233786783165271201909145648566923460348610\ 45432664821339360726024914127372458700660631558817488152092096282925\ 40917153643678925903600113305305488204665213841469519415116094330572\ 70365759591953092186117381932611793105118548074462379962749567351885\ 75272489122793818301194912983367336244065664308602139494639522473719\ 07021798609437027705392171762931767523846748184676694051320005681271\ 45263560827785771342757789609173637178721468440901224953430146549585\ 37105079227968925892354201995611212902196086403441815981362977477130\ 99605187072113499999983729780499510597317328160963185950244594553469\ 08302642522308253344685035261931188171010003137838752886587533208381\ 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25974636673058360414281388303203824903758985243744170291327656180937\ 73444030707469211201913020330380197621101100449293215160842444859637\ 66983895228684783123552658213144957685726243344189303968642624341077\ 32269780280731891544110104468232527162010526522721116603966655730925\ 47110557853763466820653109896526918620564769312570586356620185581007\ 29360659876486117910453348850346113657686753249441668039626579787718\ 55608455296541266540853061434443185867697514566140680070023787765913\ 44017127494704205622305389945613140711270004078547332699390814546646\ 45880797270826683063432858785698305235808933065757406795457163775254\ 20211495576158140025012622859413021647155097925923099079654737612551\ 76567513575178296664547791745011299614890304639947132962107340437518\ 95735961458901938971311179042978285647503203198691514028708085990480\ 10941214722131794764777262241425485454033215718530614228813758504306\ 33217518297986622371721591607716692547487389866549494501146540628433\ 66393790039769265672146385306736096571209180763832716641627488880078\ 69256029022847210403172118608204190004229661711963779213375751149595\ 01566049631862947265473642523081770367515906735023507283540567040386\ 74351362222477158915049530984448933309634087807693259939780541934144\ 73774418426312986080998886874132604720 real 0m49.791s user 0m49.520s sys 0m0.013s Hardware Intel Core 2 Duo CPU T5250 (-MCP-) clocked at 1500.000 Mhz 2GB RAM Kernel 3.8.7-1-ARCH x86_64 Link to comment Share on other sites More sharing options...
Karl L. Posted April 22, 2013 Share Posted April 22, 2013 3.141592653589793238462643383279502884197169399375105820974944592307\81640628620899862803482534211706798214808651328230664709384460955058\22317253594081284811174502841027019385211055596446229489549303819644\28810975665933446128475648233786783165271201909145648566923460348610\45432664821339360726024914127372458700660631558817488152092096282925\40917153643678925903600113305305488204665213841469519415116094330572\70365759591953092186117381932611793105118548074462379962749567351885\75272489122793818301194912983367336244065664308602139494639522473719\07021798609437027705392171762931767523846748184676694051320005681271\45263560827785771342757789609173637178721468440901224953430146549585\37105079227968925892354201995611212902196086403441815981362977477130\99605187072113499999983729780499510597317328160963185950244594553469\08302642522308253344685035261931188171010003137838752886587533208381\42061717766914730359825349042875546873115956286388235378759375195778\18577805321712268066130019278766111959092164201989380952572010654858\63278865936153381827968230301952035301852968995773622599413891249721\77528347913151557485724245415069595082953311686172785588907509838175\46374649393192550604009277016711390098488240128583616035637076601047\10181942955596198946767837449448255379774726847104047534646208046684\25906949129331367702898915210475216205696602405803815019351125338243\00355876402474964732639141992726042699227967823547816360093417216412\19924586315030286182974555706749838505494588586926995690927210797509\30295532116534498720275596023648066549911988183479775356636980742654\25278625518184175746728909777727938000816470600161452491921732172147\72350141441973568548161361157352552133475741849468438523323907394143\33454776241686251898356948556209921922218427255025425688767179049460\16534668049886272327917860857843838279679766814541009538837863609506\80064225125205117392984896084128488626945604241965285022210661186306\74427862203919494504712371378696095636437191728746776465757396241389\08658326459958133904780275900994657640789512694683983525957098258226\20522489407726719478268482601476990902640136394437455305068203496252\45174939965143142980919065925093722169646151570985838741059788595977\29754989301617539284681382686838689427741559918559252459539594310499\72524680845987273644695848653836736222626099124608051243884390451244\13654976278079771569143599770012961608944169486855584840635342207222\58284886481584560285060168427394522674676788952521385225499546667278\23986456596116354886230577456498035593634568174324112515076069479451\09659609402522887971089314566913686722874894056010150330861803525349\26405628141238318057841705943332758574332598984034941906987190827077\78800563758907673598476565621751899342141739174608536976010500429544\97914338686005220001118337811537535870789868205242501742119954572926\08064019121534445832223871740804021266231732623804857897893758410276\80559945431249738788098122178065613023460584971431268589190517059713\67863658649235616898022141439995178702171967255934705944461122300191\90990455052113690089428986937772941114299875352687256660055151501910\54346484571790828311777320064106726911789402925046658825360900699498\13994630511319896853532683576397453722524094333445752903347457486116\56180135385407154091144214138926043317519187658409887995199042154820\48173429009289164300666940617887974638071838048285283400579134427776\98653733578044176161109901553630618717787629360779214689171053712516\96929836257877364490328364198608093871458118755467347458876405019869\11929291294012540560547332296750954390786729279541567813892854365257\29151266324244440556283675140992156028932206981841774602730900394251\59699186402299448655083422333798805241201274009459824213749144064263\24489250353097554920216784857439753855497782648375705981096229721754\94653400999334164779071210944998864849639156407738084592128739301262\80146173294769187759015682182164919839790068544987515285454332066009\47315986064707992687849816296670792238300216036771993992803359199137\14331578921792615398889450399932747782702046214229340638918949391305\18148298772166781212391812329897763327254570792248296643866198603586\62675195552286003897639317060203299203706915854949865635518902086448\47680385643256427478288559990747813345217638828123563106667390102754\35984409455178091680914182328186605852932017926161320529095568019114\31815752162247892379522784601586154927670965143633603889864422975538\75329415490314629253906659163341871756174888293989666972790036850458\43702350714544039956776343319091037384740355470681308218077567401473\60664591730485540712428920582857383456320165658299216270513576504396\00001617189004469989562122396366336201363073406137497078282821316959\64283624203463330458244959835820009740206643159841554384966975713601\68087932837219256005381812239006045628780574357697884991369708541707\32214885500425421614141409669426291276174291204776085839437651584269\19673715480185947785069603147832366015787718450203282895945841275266\07059870062232755603634700698595476406849071291561266671434287786971\65825847993825298354061509667094723200real 5m44.403suser 5m44.474ssys 0m0.012s[/CODE] [b]Hardware[/b] Sun UltraSparc T1 (Niagara) CPU clocked at 1.0 GHz 8 GB of RAM [b]Kernel[/b] Debian 3.2.39-2 sparc64 (SMP) Link to comment Share on other sites More sharing options...
Karl L. Posted April 22, 2013 Share Posted April 22, 2013 3.141592653589793238462643383279502884197169399375105820974944592307\81640628620899862803482534211706798214808651328230664709384460955058\22317253594081284811174502841027019385211055596446229489549303819644\28810975665933446128475648233786783165271201909145648566923460348610\45432664821339360726024914127372458700660631558817488152092096282925\40917153643678925903600113305305488204665213841469519415116094330572\70365759591953092186117381932611793105118548074462379962749567351885\75272489122793818301194912983367336244065664308602139494639522473719\07021798609437027705392171762931767523846748184676694051320005681271\45263560827785771342757789609173637178721468440901224953430146549585\37105079227968925892354201995611212902196086403441815981362977477130\99605187072113499999983729780499510597317328160963185950244594553469\08302642522308253344685035261931188171010003137838752886587533208381\42061717766914730359825349042875546873115956286388235378759375195778\18577805321712268066130019278766111959092164201989380952572010654858\63278865936153381827968230301952035301852968995773622599413891249721\77528347913151557485724245415069595082953311686172785588907509838175\46374649393192550604009277016711390098488240128583616035637076601047\10181942955596198946767837449448255379774726847104047534646208046684\25906949129331367702898915210475216205696602405803815019351125338243\00355876402474964732639141992726042699227967823547816360093417216412\19924586315030286182974555706749838505494588586926995690927210797509\30295532116534498720275596023648066549911988183479775356636980742654\25278625518184175746728909777727938000816470600161452491921732172147\72350141441973568548161361157352552133475741849468438523323907394143\33454776241686251898356948556209921922218427255025425688767179049460\16534668049886272327917860857843838279679766814541009538837863609506\80064225125205117392984896084128488626945604241965285022210661186306\74427862203919494504712371378696095636437191728746776465757396241389\08658326459958133904780275900994657640789512694683983525957098258226\20522489407726719478268482601476990902640136394437455305068203496252\45174939965143142980919065925093722169646151570985838741059788595977\29754989301617539284681382686838689427741559918559252459539594310499\72524680845987273644695848653836736222626099124608051243884390451244\13654976278079771569143599770012961608944169486855584840635342207222\58284886481584560285060168427394522674676788952521385225499546667278\23986456596116354886230577456498035593634568174324112515076069479451\09659609402522887971089314566913686722874894056010150330861792868092\08747609178249385890097149096759852613655497818931297848216829989487\22658804857564014270477555132379641451523746234364542858444795265867\82105114135473573952311342716610213596953623144295248493718711014576\54035902799344037420073105785390621983874478084784896833214457138687\51943506430218453191048481005370614680674919278191197939952061419663\42875444064374512371819217999839101591956181467514269123974894090718\64942319615679452080951465502252316038819301420937621378559566389377\87083039069792077346722182562599661501421503068038447734549202605414\66592520149744285073251866600213243408819071048633173464965145390579\62685610055081066587969981635747363840525714591028970641401109712062\80439039759515677157700420337869936007230558763176359421873125147120\53292819182618612586732157919841484882916447060957527069572209175671\16722910981690915280173506712748583222871835209353965725121083579151\36988209144421006751033467110314126711136990865851639831501970165151\16851714376576183515565088490998985998238734552833163550764791853589\32261854896321329330898570642046752590709154814165498594616371802709\81994309924488957571282890592323326097299712084433573265489382391193\25974636673058360414281388303203824903758985243744170291327656180937\73444030707469211201913020330380197621101100449293215160842444859637\66983895228684783123552658213144957685726243344189303968642624341077\32269780280731891544110104468232527162010526522721116603966655730925\47110557853763466820653109896526918620564769312570586356620185581007\29360659876486117910453348850346113657686753249441668039626579787718\55608455296541266540853061434443185867697514566140680070023787765913\44017127494704205622305389945613140711270004078547332699390814546646\45880797270826683063432858785698305235808933065757406795457163775254\20211495576158140025012622859413021647155097925923099079654737612551\76567513575178296664547791745011299614890304639947132962107340437518\95735961458901938971311179042978285647503203198691514028708085990480\10941214722131794764777262241425485454033215718530614228813758504306\33217518297986622371721591607716692547487389866549494501146540628433\66393790039769265672146385306736096571209180763832716641627488880078\69256029022847210403172118608204190004229661711963779213375751149595\01566049631862947265473642523081770367515906735023507283540567040386\74351362222477158915049530984448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0m33.375suser 0m33.369ssys 0m0.001s[/CODE] [b]Hardware[/b] Intel Core 2 Quad CPU Q6600 clocked at 2.40 GHz 8 GB of RAM [b]Kernel[/b] 2.6.32-358.2.1.el6.x86_64 (SMP) Link to comment Share on other sites More sharing options...
n_K Posted April 22, 2013 Share Posted April 22, 2013 "real 0m33.296s user 0m33.268s sys 0m0.012s" (hack)Mac, Q6700, 6GB DDR2 RAM "real 0m30.680s user 0m30.627s sys 0m0.003s" Arch VM on ESXi server, 8 cores of 16 allowed from dual E5620, 4GB DDR3 RAM Link to comment Share on other sites More sharing options...
drazen11 Posted April 22, 2013 Share Posted April 22, 2013 Pi is 1.34~ Are you insane?? :woot: :wacko: :rofl: spikey_richie and Killer_Z 2 Share Link to comment Share on other sites More sharing options...
ajcdotme Posted April 22, 2013 Share Posted April 22, 2013 Hardware: Intel? Core? i7 CPU M 620 @ 2.67GHz / 8 GB RAM Kernel: 3.5.0-17-generic (Mint / Macbook Pro late 2010) ... snip ...real 0m25.536s user 0m25.274s sys 0m0.108s Hardware: Intel? Core? i7 CPU 930 @ 2.80GHz / 16GB RAM Kernel: 2.6.32-358.2.1.el6.x86_64 (CentOS / Generic) ... snip ...real 0m17.346s user 0m17.269s sys 0m0.000s Link to comment Share on other sites More sharing options...
Karl L. Posted April 22, 2013 Share Posted April 22, 2013 5 minutes and 44 seconds seems nigh unbeatable based on everyone else's times (including my own). I THINK I'M GOING TO WIN! Too bad I don't have a working hard drive for my PowerBook G4 anymore. Maybe that machine would take even longer to compute Pi to 5000 decimal places and multiply it by four! I really want to try it now... Link to comment Share on other sites More sharing options...
Salutary7 Posted April 22, 2013 Share Posted April 22, 2013 Intel? Core?2 Quad CPU Q6600 @ 2.40GHz ? 4 Kernel Linux 3.5.0-17-generic real 0m31.375s user 0m31.358s sys 0m0.012s Btw, what is it you're trying to test? Link to comment Share on other sites More sharing options...
Circaflex Posted April 22, 2013 Share Posted April 22, 2013 Pi is 1.34~ wait what? not it isnt its 3.14........ Is that the number pi? yep that is pi expanded out Link to comment Share on other sites More sharing options...
Karl L. Posted April 22, 2013 Share Posted April 22, 2013 I am also interested in knowing what, specifically, you are testing. Which compiler options are you enabling/disabling? Which compiler are you using? Which distribution are you compiling the kernel on? How are you compiling the kernel (using kbuild, Debian kernel build scripts, or something else)? Are you using the mainline kernel, a stable kernel, a specific distro kernel, or something else? Off Topic: ChuckFinley, I really like your user name! I'm a fan of that show too. I've watched all the episodes they have on Netflix. I'll probably have to buy it outright at some point. Link to comment Share on other sites More sharing options...
Mindovermaster Moderator Posted April 22, 2013 Moderator Share Posted April 22, 2013 wait what? not it isnt its 3.14........ I had a very bad headache at that time. My head's not always thinking logically... :| Circaflex 1 Share Link to comment Share on other sites More sharing options...
Karl L. Posted April 22, 2013 Share Posted April 22, 2013 I had a very bad headache at that time. My head's not always thinking logically... :| Its okay. You're not the only one who made a mistake. I stated that it is "Pi to 5000 decimal places [multiplied] by four", but that's not actually true. The command is just timing how long it takes for bc to compute Pi (to 5000 decimals of precision). Link to comment Share on other sites More sharing options...
n_K Posted April 22, 2013 Share Posted April 22, 2013 Intel? Core?2 Quad CPU Q6600 @ 2.40GHz ? 4 Kernel Linux 3.5.0-17-generic real 0m31.375s user 0m31.358s sys 0m0.012s Wait, what? You beat my q6700 with a q6600? Think this test is kinda flawed haha... Link to comment Share on other sites More sharing options...
XerXis Posted April 22, 2013 Share Posted April 22, 2013 unless it says sudo, you won't do that much... I have an i5 3570K (no OC yet), and ASRock Extreme 3 stupid thing to say, I would rather have a command break my system (which can be reinstalled) than some command erasing all my personal files and work that I had done that day. Link to comment Share on other sites More sharing options...
offroadaaron Posted April 22, 2013 Share Posted April 22, 2013 real 0m20.158s user 0m20.149s sys 0m0.007s MBPr 2.6 GHz Intel Core i7 Link to comment Share on other sites More sharing options...
Rablet Posted April 22, 2013 Share Posted April 22, 2013 Calculating Pi on the (Raspberry) Pi: real 4m4.804s user 4m3.870s sys 0m0.140s Link to comment Share on other sites More sharing options...
soumyasch Posted April 22, 2013 Share Posted April 22, 2013 ...snip... 65825847993825298354061509667094723200 [b]Hardware[/b] Sun UltraSparc T1 (Niagara) CPU clocked at 1.0 GHz 8 GB of RAM [b]Kernel[/b] Debian 3.2.39-2 sparc64 (SMP) [code] ...snip... 73774418426312986080998886874132604720 [b]Hardware[/b] Intel Core 2 Quad CPU Q6600 clocked at 2.40 GHz 8 GB of RAM [b]Kernel[/b] 2.6.32-358.2.1.el6.x86_64 (SMP) Why do you get different results in your Sun system? Which one is flawed? Link to comment Share on other sites More sharing options...
+John Teacake MVC Posted April 22, 2013 Author MVC Share Posted April 22, 2013 Thanks for these guys, Looks like we have a healthy discussion going. Yeah why does the SPARC get a different result and also take over 5mins to do it. It looks like the i7's are the winners. I got mine to a 22sec. I am trying the latest bleeding edge mainline kernel with the i7 gcc optimizations. Link to comment Share on other sites More sharing options...
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