{"id":2314,"date":"2019-12-02T17:46:23","date_gmt":"2019-12-02T17:46:23","guid":{"rendered":"http:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/?p=2314"},"modified":"2019-12-02T17:55:02","modified_gmt":"2019-12-02T17:55:02","slug":"raspberrypi-zerow-test-mathematicy-2","status":"publish","type":"post","link":"https:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/?p=2314","title":{"rendered":"RaspberryPi 4 – test Mathematicy"},"content":{"rendered":"

Nowa malinka z 4GB RAMu – jak\u0105 ma wydajno\u015b\u0107 w moim te\u015bcie<\/a> Mathematicy?<\/p>\n

Uruchomienie<\/h2>\n

System startuje w oko\u0142o 20 sek<\/strong> (liczone od momentu w\u0142\u0105czenia zasilania do uruchomienia X-\u00f3w i odpalenia terminala). Por\u00f3wnuj\u0105c to do RPi v3 jest szybszy o jakie\u015b ~10s. Sama Mathematica startuje szybciutko, cho\u0107 czasu nie liczy\u0142em – ale jest zdecydowanie szybciej ni\u017c na RPi Zero, gdzie (przypomn\u0119) start Mathematicay zajmowa\u0142 ponad 2 minuty!<\/strong><\/p>\n

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Distributor ID: Raspbian
\nDescription: Raspbian GNU\/Linux 10 (buster)
\nRelease: 10
\nCodename: buster<\/p>\n

Testy Mathematicy<\/h2>\n

Nie ma si\u0119 co oszukiwa\u0107 – 4 GB RAM robi swoje. Podczas test\u00f3w system dzia\u0142a sprawnie<\/strong>, jest bardzo responsywny, temperatura na procku dochodzi do 42C, a zu\u017cycie RAMu wskazuje oko\u0142o 420 MB. Jest wi\u0119c du\u017cy zapas, i dlatego wszystko dzia\u0142a jak powinno.<\/p>\n

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Nowe wyniki, system Raspbian Buster:<\/p>\n\n\n\n
              <\/td>\n                      TEST1<\/td>\nEXPORT<\/td>\nTEST3<\/td>\nTEST4<\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
RPi v4, 4GB, 1.5GHz<\/td>\n6.0 s<\/td>\n7.3 s<\/td>\n10.2 s<\/td>\n1.6 s<\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
RPi v3B, 1GB, 1.2GHz<\/td>\n26.2 s<\/td>\n27.6 s<\/td>\n47.1 s<\/td>\n6.9 s<\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Wyniki w tabelce to wynik polece\u0144 Timing[] Mathematicy i poszczeg\u00f3lnych test\u00f3w<\/a>. Wychodzi na to, \u017ce malinka v4 jest oko\u0142o 4x szybsza<\/strong> od malinki v3 model B. Nie t\u0142umaczy tego wzrost pr\u0119dko\u015bci pojedynczego rdzenia (1.5GHz to „tylko” 25% od 1.2 GHz), ani zastosowanie pami\u0119ci DDR4 (w stosunku do DDR2) – ale ca\u0142o\u015b\u0107 ju\u017c robi swoje (co wida\u0107). Sam rozmiar RAMu nie gra\u0142 tu chyba istotnej roli – jak wspomnia\u0142em wcze\u015bniej, zu\u017cycie pami\u0119ci by\u0142o maksymalnie ~420MB.<\/p>\n

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Podsumowuj\u0105c<\/h2>\n

RPi v4  – baaaardzo fajne urz\u0105dzenie, cho\u0107 wymaga ch\u0142odzenia – podczas moich test\u00f3w system grza\u0142 si\u0119 do 42C (vcgencmd measure_temp) mimo zastosowania ch\u0142odzenia aktywnego – wiatraczka 5V. By\u0142o wi\u0119c do\u015b\u0107 g\u0142o\u015bno \ud83d\ude1b Te same testy RPi v3 z ch\u0142odzeniem pasywnym wskazywa\u0142 53C ale nic-a-nic nie szumia\u0142o.<\/p>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

Nowa malinka z 4GB RAMu – jak\u0105 ma wydajno\u015b\u0107 w moim te\u015bcie Mathematicy? Uruchomienie System startuje w oko\u0142o 20 sek (liczone od momentu w\u0142\u0105czenia zasilania do uruchomienia X-\u00f3w i odpalenia terminala). Por\u00f3wnuj\u0105c to do RPi v3 jest szybszy o jakie\u015b ~10s. Sama Mathematica startuje szybciutko, cho\u0107 czasu nie liczy\u0142em – ale jest zdecydowanie szybciej ni\u017c […]<\/p>\n","protected":false},"author":5,"featured_media":2318,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[54],"tags":[165,163,55,369,370,166],"class_list":{"0":"post-2314","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-news","8":"tag-mathematica","9":"tag-pi","10":"tag-raspberry","11":"tag-rpi","12":"tag-v4","13":"tag-wolfram","15":"post-with-thumbnail","16":"post-with-thumbnail-large"},"_links":{"self":[{"href":"https:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/index.php?rest_route=\/wp\/v2\/posts\/2314","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2314"}],"version-history":[{"count":5,"href":"https:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/index.php?rest_route=\/wp\/v2\/posts\/2314\/revisions"}],"predecessor-version":[{"id":2323,"href":"https:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/index.php?rest_route=\/wp\/v2\/posts\/2314\/revisions\/2323"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/index.php?rest_route=\/wp\/v2\/media\/2318"}],"wp:attachment":[{"href":"https:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2314"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2314"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/physics.uwb.edu.pl\/wf\/fi-bot\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}