回復 5# edgarjr
FAQ: Why You Shouldn』t Be Using a Task Killer with Android:
http://geekfor.me/faq/you-should ... iller-with-android/
如果真係要快就直接modity個system internal memory task-killer
點解你用左會快左,因為本身android 個system設定到得番好少ram先kill "active" / "foreground" service 黎實現/確保可以multi-tasking, 所以當你開新O既application而個application又係大食O既話咁就會唔夠ram,同時system自己同你kill task等你可以開到個software,當中會有一個latency o係度.
但係用3rd party kill application唔會完全同你放曬D ram, 3rd party task killing 唔同放ram,
無錯3rd party 係會放到一定程度O既ram,但係唔係完全放曬的,你用得愈密只會搞到個system memory allocation亂曬,會愈黎愈少ram,如果你長開唔熄會發現部機過左幾日kill曬所有software都好慢,要reboot
android同wm唔同...
舉個例,如果你download個terminal跟住打 free ,會show比你睇你有幾多ram free, 通常都無free ram, 但係你同時開個task manager 出黎會show 你有幾十mb free ram甚至過百mb, 因為android kill舊task/ 將task變成idle時 保留左部份做cache 等你再開時會快D, cache/swap 係linux 特色, 係比較進步o既memory management, 而家windows vista / 7 都有cache了, 不過慢人十年...
好多用家都用慣symbian / wm 機用番以前o個套用法, 完全錯曬...
用android task manager 叫你買係當然要講到自己有用,如果唔係搵鬼買咩.
例如:task killing 會慳電, 令到好多用家以為愈少software 開住, 愈多free ram battery life 就愈longlasting
根本成個concept又係錯到不行, ram 開機個chips 就要導電, 無論有無allocate到data都係用咁多電, 你用電腦0MB free ram / 4GB free ram 時, ram 都係要用咁多電, 電話都係一樣, kill task 可以慳電唔係因為Free-up ram, 係因為可能某D task 不停咁track GPS / background sync (例如: twitter, email, IM client)等. 但係如果你開game / browser 呢類程式唔用的話你唔kill 佢佢都唔會用到wifi, 3G, gps 等o既, 咁你kill左佢根本就無慳到電.
另一方面,如果email client / twitter 等你kill左佢咁不如唔好用啦
當年iphone出時, steve 又係講到唔清唔楚話multi tasking 食電, single tasking 無咁食電, 一野唱衰所有智能機, iphone single tasking 慳電可以實現係因為唔比3rd party software 做background sync , 統一做push-notification, 呢個先係成功地方, 因為1個統一O既push notification比起N個3rd party 用data 做tracking / sync 慳電.
完全唔明白點解D人要用task manager 熄曬所有application, 如果重新開過慢好多, 甚至會有其他問題,
例如browser kill左重開之前睇緊個page 會唔見左,但係system自己kill 留番個cache 就係要黎保留最後個appliation狀態...
真係覺得慢自己改system吧, 隨左無電我部機從來都唔會慢到頂唔住要reboot,又唔洗下下開個task manager出黎搞一大輪
P.S. 有關於手提battery life仲有一點要注意, D用家換左新radio rom , 用左task manager kill task,etc...成日話better battery life, 我成日都覺得係placebo effect, 每日用量都唔同好難作準,要慳電只有off 3G/GPRS, wifi, screen brightness先真係有效..
另外,gps 唔一定要熄因為唔開D 要用gps o既software gps 只係standby ,唔係activate, 用唔到幾多電..
(用左android 2年幾)... |