NVMe SSD and battery life?
#1
If I keep /boot on the eMMC and put everything else on an NVMe SSD drive how much battery life am I going to loose?
  Reply
#2
It depends on how much power the SSD is using. There are ways to limit the power using the nvme command. I think in my case it's about a couple hours of use time.

Some more thoughts:
https://forum.pine64.org/showthread.php?...3#pid83373

Since that time I've also converted it to the f2fs file system, I don't see any improvement over ext4 in benchmarks or otherwise but it's been quite stable and resilient to corruption so I'm not rushing to change back. I keep the boot partition in the emmc, like you propose in the OP.
  Reply
#3
(04-10-2021, 03:16 PM)slyecho Wrote: It depends on how much power the SSD is using. There are ways to limit the power using the nvme command. I think in my case it's about a couple hours of use time.

Some more thoughts:
https://forum.pine64.org/showthread.php?...3#pid83373

Since that time I've also converted it to the f2fs file system, I don't see any improvement over ext4 in benchmarks or otherwise but it's been quite stable and resilient to corruption so I'm not rushing to change back. I keep the boot partition in the emmc, like you propose in the OP.

Loosing a couple of hours seems like a shame.  One of the things I love about this laptop is its long battery life.

Is there any risk of wearing out the built in eMMC drive?  I just had an SSD failure on my work Lenovo T470.  Having only /boot on the eMMC means that it's never going to wear out I guess.

interesting article on SSDs and battery life here https://www.tweaktown.com/articles/8856/...index.html
  Reply
#4
Why I still keep using the SSD:
  1. It's still a lot faster
  2. It has tons of space
These two things combined also allow me to actually use a large swap partition (8GB) because the computer has relatively little RAM.
I wouldn't be concerned about the longevity of the eMMC, it's perfectly useable and faster than an SD card. I have some other tablets that have eMMC storage and they have lasted for years.
It's also not soldered on, Pine 64 sell the modules separately and you can replace them very easily if it should fail.
  Reply


Possibly Related Threads…
Thread Author Replies Views Last Post
  Selling Pinebook Pro 128GB version (w/ NVMe adaptor) due to lack of use VoT 3 879 03-19-2021, 03:11 AM
Last Post: jj282
  [split] U-Boot with NVMe support, keyboard & display working as400 83 30,997 01-27-2021, 12:48 AM
Last Post: as400
  U-Boot with direct NVMe boot support for eMMC/SPI Flash pcm720 115 84,730 01-04-2021, 09:57 AM
Last Post: wdt
  emmc vs NVMe real-world performances Henry 7 2,629 11-15-2020, 02:03 PM
Last Post: rimaille
  NVMe doesn't show up Seferi 19 4,590 10-30-2020, 07:08 AM
Last Post: ReddestDream
  [AUG 2020] PBP Battery Issue (?) mercato 7 1,929 09-22-2020, 12:10 AM
Last Post: KC9UDX
  No battery or wifi after poweroff Goin2mars 3 1,291 09-19-2020, 09:58 AM
Last Post: xmixahlx
  Unable to mount NVME (PineBook Pro) WallStreet 4 2,118 09-13-2020, 11:16 PM
Last Post: Phillip Bell
  NVME problems mamboman777 12 4,504 08-19-2020, 12:01 PM
Last Post: xmixahlx
  NVMe adapter separate order? powerful owl 5 1,696 07-27-2020, 10:02 PM
Last Post: powerful owl

Forum Jump:


Users browsing this thread: 1 Guest(s)