{"id":711,"date":"2009-11-12T09:30:14","date_gmt":"2009-11-12T08:30:14","guid":{"rendered":"http:\/\/www.stenyak.com\/?p=711"},"modified":"2009-11-12T09:30:14","modified_gmt":"2009-11-12T08:30:14","slug":"googles-go-simple-stupid-benchmark-2nd-round-memspeed","status":"publish","type":"post","link":"https:\/\/www.stenyak.com\/?p=711","title":{"rendered":"Google’s “go” simple & stupid benchmark (2nd round: memspeed)"},"content":{"rendered":"

Continued from Round 1: I\/O<\/a><\/p>\n

Thanks to Juanval<\/a> for the suggestion<\/a>.<\/p>\n

$ cat hello.cpp<\/strong> && g++ hello.cpp &&\n> time for i in $(seq 10); do .\/a.out; done\nint main (int argc, char** argv)\n{\n    const int size = 250;\n    int a[size],b[size],c[size];\n    for(int i=0;i<size;++i)\n        for(int j=0;j<size;++j)\n            for(int k=0;k<size;++k)\n                c[k]+=a[i]*b[j];\n}\nreal<\/strong>\t<\/strong><\/span>0m1.041s<\/strong>\nuser<\/strong>\t<\/strong><\/span>0m0.944s<\/strong>\nsys<\/strong>\t<\/strong><\/span>0m0.020s<\/strong><\/pre>\n
\n
$ cat hello.py<\/strong> &&\n> time for i in $(seq 10); do python hello.py; done\nsize = 250\na,b,c = [0]*size, [0]*size, [0]*size\nfor i in a:\n    for j in b:\n        for k in range(0,size):\n            c[k] += i*j\nreal<\/strong>\t<\/strong><\/span>1m7.210s<\/strong>\nuser<\/strong>\t<\/strong><\/span>1m4.924s<\/strong>\nsys<\/strong>\t<\/strong><\/span>0m0.084s<\/strong><\/pre>\n
\n
$ cat hello.go<\/strong> && 8g hello.go && 8l hello.8 &&\n> time for i in $(seq 10); do .\/8.out; done\npackage main\nfunc main()\n{\n    var a,b,c [250]int;\n    for i := range a\n    {\n        for j := range b\n        {\n            for k := range c\n            {\n                c[k] += a[i] * b[j];\n            }\n        }\n    }\n}\nreal<\/strong>\t<\/strong><\/span>0m3.000s<\/strong>\nuser<\/strong>\t<\/strong><\/span>0m2.812s<\/strong>\nsys<\/strong>\t<\/strong><\/span>0m0.020s<\/strong><\/pre>\n","protected":false},"excerpt":{"rendered":"
Continued from Round 1: I\/O Thanks to Juanval for the suggestion. $ cat hello.cpp && g++ hello.cpp && > time for i in $(seq 10); do .\/a.out; done int main (int argc, char** argv) { const int size = 250; int a[size],b[size],c[size]; for(int i=0;i<size;++i) for(int j=0;j<size;++j) for(int k=0;k<size;++k) c[k]+=a[i]*b[j]; } real 0m1.041s user 0m0.944s sys […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,4],"tags":[13],"_links":{"self":[{"href":"https:\/\/www.stenyak.com\/index.php?rest_route=\/wp\/v2\/posts\/711"}],"collection":[{"href":"https:\/\/www.stenyak.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.stenyak.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.stenyak.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.stenyak.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=711"}],"version-history":[{"count":0,"href":"https:\/\/www.stenyak.com\/index.php?rest_route=\/wp\/v2\/posts\/711\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.stenyak.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.stenyak.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.stenyak.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}