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M8(android 6.0)若用合併內存, 哪張SD卡比較推薦?

zsuper0405 wrote:
那個人應該沒用過6...(恕刪)


你錯了~他們在台灣區更新6.0前就在開發6.0用的ROM了
你真以為SDcard能跟NAND比?

以下我就不翻譯了
有人合併後發生問題,開發者這麼說:
You are experimenting with new stuff introduced by Marshmallow, find yourself in trouble and then ask for help...
I can tell you few things about that, none helpful though...
Not a single developer or beta tester have done that, cause we find it stupid for several reasons, main being that micro SD card is much slower then internal NAND memory, except if you buy some extremely fast and extremely expensive one.
Other reason is that it obviously messes up access to both internal and external memory from TWRP (and PC).
Best advice for you two, in XDA-developers spirit, is to find a solution by yourself and share with others, or if there is none, share process of reverting what you did with least possible data loss.


另外一個老外...
Yeah one thing I don't get really. Why would you want to decrease the entire ROM's performance by using a slow sdcard as internal memory? Only reason I can see is ignorance. People don't know.

Just to put things in perspective: I recently updated my sdcard to an expensive one known to deliver good speeds. That sdcard produces these speeds: from NAND to card approx 25 - 35 MB/s on large files, slower for small files. The reverse way it's 85Mbit/s from card to NAND.
Now that doesn't sound too bad, right?
But only until you realise it's most likely just 85Mbit because the card can't read faster. The internal read speed of the NAND, when the system accesses files on internal for instance, or launches an app, is much much higher than 85Mbit. It's basically like an SSD versus Sdcard. My benchmark says my NAND reads with 235Mbit/s and writes with 86Mbit/s, whereas I believe that write speed is mostly due to the benchmark app. I guess it's still higher.

Putting apps and their data on an sdcard is simply sacrificing one of the nicest things about the M9: incredibly fast NAND.

Another trivial fact: the NAND of the M9 is almost twice as fast as the one from the M8...

nahaha wrote:
目前發現將SD卡格式...(恕刪)

推分享心得。沒錯目前同樣組合不過是金士頓U3紅卡也是大約這種速度。載入網頁時就有感覺了,不像合併前很順暢的載入整個頁面,會微微的卡一下卡一下。

結論金士頓的SDXC U1 64G與SDXC U3 64G 都不適合目前Android 6.0的合併儲存空間功能

sandershgt wrote:
我用的是TOSHIB...(恕刪)

想請問是合併儲存空間後速度一樣不變嗎?
小弟今天剛升6.0 想問SD合併後萬一速度太慢,還能還原SD出來嗎?如果不行那是否就浪費一張了@@?
還有用來合併的卡,只要是U3的就不會太卡太鈍是嗎?謝謝回復~
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