{"id":86040,"date":"2020-06-21T01:42:53","date_gmt":"2020-06-20T23:42:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/oczenka-vliyaniya-na-proizvoditelnost-populyarnyh-dopolnenij-k-chrome"},"modified":"2020-06-21T01:42:53","modified_gmt":"2020-06-20T23:42:53","slug":"oczenka-vliyaniya-na-proizvoditelnost-populyarnyh-dopolnenij-k-chrome","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/oczenka-vliyaniya-na-proizvoditelnost-populyarnyh-dopolnenij-k-chrome","title":{"rendered":"Chrome'i populaarsete laienduste m\u00f5ju tulemuslikkusele","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Avaldatud<\/a><\/noindex> Uuringu tulemused, mis k\u00e4sitlevad tuhat populaarseimat Chrome'i laiendust ja nende m\u00f5ju brauseri tulemuslikkusele. N\u00e4idatakse, et m\u00f5ned laiendused v\u00f5ivad m\u00f5jutada tulemuslikkust ja tekitada suurt koormust s\u00fcsteemile, samuti suurendada m\u00e4lu tarbimist mitmekordselt. Testimise k\u00e4igus hinnati CPU koormuse loomist aktiivsetes ja taustare\u017eiimides, m\u00e4lutarbimist ja m\u00f5ju avatud lehtede laadimiskiiruselt. Tulemused on esitatud kahes valimis, millele on kokku koondatud 100 ja 1000 populaarseimat laiendust.<\/p>\n

100 k\u00f5ige populaarsemast laiendusest on k\u00f5ige rohkem CPU-d koormavad laiendused «Evernote Web Clipper» (4 miljonit kasutajat) ja «Grammarly» (10 miljonit kasutajat), mis p\u00f5hjustavad iga lehe avanemise korral 500 ms processoriaja kulu (v\u00f5rdluseks, testimise veebilehe avamine ilma laiendusteta tarbib 40 ms).
\n\u00dcldiselt kasutavad 20 laiendust rohkem kui 100 ms, samas kui 80 tarbib alla 100 ms. \u00dcks ootamatu leid oli, et laiendus Ghostery tarbib 120 ms CPU aega. Paroolihaldur LastPass tarbib 241 ms, samas kui Skype — 191 ms. Need ressursid ei takista renderdamist, kuid blokeerivad lehega suhtlemise alustamist ja m\u00f5jutavad seadme energiatarbimist.<\/p>\n

\"Chrome'i<\/a><\/noindex><\/center><\/p>\n

1000 laienduse valimis on laiendusi, mis tekitavad m\u00e4rkimisv\u00e4\u00e4rselt suuremat koormust:<\/p>\n

\"Chrome'i<\/a><\/noindex><\/center><\/p>\n

Lehe renderdamise viivituse testis aeglustasid laiendused Clever, Grammarly, Cash Back for Shoping, LastPass ja AVG avamist 150-300 ms, m\u00f5nel juhul p\u00f5hjustades viivitusi, mis olid v\u00f5rreldavad lehe enda renderdamisega. \u00dcldiselt on olukord normaalne, kuna 100 laienduse seas ainult 6 p\u00f5hjustavad viivituse \u00fcle 100 ms.<\/p>\n

\"Chrome'i<\/a><\/noindex><\/center><\/p>\n

Tulemused 1000 laienduse valimist:<\/p>\n

\"Chrome'i<\/a><\/noindex><\/center><\/p>\n

Taustategevuste t\u00e4itmise t\u00f5ttu tekitab laiendus koormust CPU-le.
\nAvira Browser Safety, mis kasutas peaaegu 3 sekundit CPU aega, samas kui teiste lisade kulud ei \u00fcletanud 200 ms. Kuna taustaprogrammi kasutatakse tavaliselt v\u00f5rgu-p\u00e4ringute t\u00f6\u00f6tlemiseks, mis toimuvad lehe avamise protsessis, korrati testi saidil apple.com, mis teeb 50 p\u00e4ringut \u00fche asemel. Tulemused muutusid ja koormuse loomise liidriks kerkis Ghostery, samas kui Avira Browser Safety langes 9. kohale (anal\u00fc\u00fcs n\u00e4itas, et koormus v\u00e4henes, kuna apple.com oli valges nimekirjas).<\/p>\n

\"Chrome'i<\/a><\/noindex><\/center><\/p>\n

1000 lisa testi tulemused:
\n

\"Chrome'i<\/a><\/noindex><\/center><\/p>\n
  • M\u00e4lu tarbimise testis saavutas esimese koha laiendus Avira Browser Safety, mille m\u00e4lu tarbimine oli 218 MB (rohkem kui 30 000 regulaaravaldiste t\u00f6\u00f6tlemise t\u00f5ttu, mis salvestatakse m\u00e4lu). Teisel ja kolmandal kohal olid Adblock Plus ja Adblock, mis tarbivad veidi v\u00e4hem kui 200 MB. 20 k\u00f5ige halvemini m\u00e4lu tarbimise poolest l\u00f5petab uBlock Origin, mis tarvitab v\u00e4hem kui 100 MB (v\u00f5rreldes teiste reklaamiblokeerijatega, on uBlock Origini m\u00e4lu tarbimine \u00fcks madalamaid, vt allpool reklaamiblokeerijate v\u00f5rdlus).\n

    \"Chrome'i<\/a><\/noindex><\/center><\/p>\n

    20 halvimat tulemust 1000 lisandi testimisel:
    \n

    \"Chrome'i<\/a><\/noindex><\/center><\/p>\n

    Kuna kasutajad tihti seostavad madalat j\u00f5udlust ja viivitusi brauseriga, mitte paigaldatud lisadega, Google uue Edge'i brauseriversiooni arendamist, mis p\u00f5hineb Chromiumi mootoril. Uue brauseri arendamise k\u00e4igus<\/a><\/noindex> katsetused probleemsete laiendustega teavitamiseks. Chrome 83 stabiliseeritud versioonis ilmus seade «chrome:\/\/flags\/#extension-checkup», mis lubab kuvada teateid laienduste v\u00f5imaliku m\u00f5ju kohta privaatsusele ja j\u00f5udlusele. Kui suvand on lubatud, hakkavad uue vahekaartide lehe ja laienduste halduri lehel ilmuma hoiatusteated selle kohta, et laiendused v\u00f5ivad p\u00f5hjustada m\u00e4rkimisv\u00e4\u00e4rset ressursside tarbimist v\u00f5i p\u00e4\u00e4seda juurde isikuandmetele ja kasutaja tegevusele.<\/p>\n

    Erinevalt on v\u00f5rreldud reklaamide ja privaatsuse blokeerimise lisasid, keskendudes ressursside kokkuhoiule, blokeerides v\u00e4liseid skripte ja reklaami sisestusi. K\u00f5ik lisad v\u00e4hendasid koormust v\u00e4hemalt kolm korda, t\u00f6\u00f6tlemisel testartiklit \u00fche uudiste saidilt. Parimaks lisaks osutus DuckDuckGo Privacy Essentials, mille kasutamisel v\u00e4henes testlehe avamise koormus 31 sekundilt 1,6 sekundile CPU aega, v\u00e4hendades v\u00f5rgu p\u00e4ringute arvu 95% ja laaditavate andmete mahtu 80%. Sarnast tulemust n\u00e4itas uBlock Origin. <\/p>\n

    \"Chrome'i<\/a><\/noindex><\/center><\/p>\n

    DuckDuckGo Privacy Essentials ja uBlock Origin osutusid ka parimateks ressursside kasutuse hindamisel taustategevuste t\u00e4itmisel.<\/p>\n

    \"Chrome'i<\/a><\/noindex><\/center><\/p>\n

    M\u00e4lu kasutuse testimisel v\u00f5imaldas DuckDuckGo Privacy Essentials ja uBlock Origin v\u00e4hendada m\u00e4lu kasutust 536 MB-lt testlehe t\u00e4ielikul t\u00f6\u00f6tlemisel ~140 MB-le.<\/p>\n

    \"Chrome'i<\/a><\/noindex><\/center><\/p>\n

    Sarnase testimise teostamiseks web-arendajate lisadele. CPU koormus:<\/p>\n

    \"Chrome'i<\/a><\/noindex><\/center><\/p>\n

    CPU koormus taustategevustes
    \n

    \"Chrome'i<\/a><\/noindex><\/center><\/p>\n

    Kuvamise viivitused:
    \n

    \"Chrome'i<\/a><\/noindex><\/center><\/p>\n

    M\u00e4lu kasutus:
    \n

    \"Chrome'i<\/a><\/noindex><\/center><\/p>\n

    <\/a><\/noindex><\/p>\n

    Allikas: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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