Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
What is the best filesystem for SD card?
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Gentoo Chat
View previous topic :: View next topic  

What's the best file system for SD card?
FAT32
66%
 66%  [ 4 ]
NTFS
0%
 0%  [ 0 ]
EXT2
16%
 16%  [ 1 ]
EXT3
0%
 0%  [ 0 ]
EXT4
16%
 16%  [ 1 ]
exFAT
0%
 0%  [ 0 ]
Total Votes : 6

Author Message
pigsboss
n00b
n00b


Joined: 27 Dec 2011
Posts: 7

PostPosted: Thu Jul 05, 2012 6:48 am    Post subject: What is the best filesystem for SD card? Reply with quote

I put my OS in SSD and my backup & archives & ISOs in HDD.

I'm now planning to put my work directories (lots of small codes) in SD cards so that I can manage them conveniently.

What is the best filesystem for SD card? I will access my SD cards through a built-in cardreader in my laptop. Because I have to access them both in Windows and in Gentoo, so I think I have only several choises.

I performed several tests using fs_mark on a SanDisk 16GB SD card (Class10, w/r up to 30MB/s and 45MB/s).

Here is some results:

1, NTFS, block(cluster) size=32kiB, libntfs-3g v2012-1-15, 1MiB*1000: 1.9 files/sec

2, ext4, block size=4kiB, (kernel: 3.2.12), 1MiB*1000: 12.9 files/sec

3, FAT32, block(cluster) size=32kiB, 1MiB*1000: 11.8 files/sec

4, exFat, cluster size=32kiB, 1MiB*1000: 245.3 files/sec



I think results from both ext4 test and vfat test are really reaonable. However the results of NTFS test and exFat test are really strange!

What's your opinion? What are you using with your SD card?
_________________
Pig's Boss / 猪头
Back to top
View user's profile Send private message
aCOSwt
Moderator
Moderator


Joined: 19 Oct 2007
Posts: 2537
Location: Hilbert space

PostPosted: Thu Jul 05, 2012 8:37 am    Post subject: Reply with quote

My opinion is :
Code:

    G64_SSDP = {
        features = ^has_journal,ext_attr,^resize_inode,dir_index,filetype,^extent,^flex_bg,sparse_super,large_file,^huge_file,^uninit_bg,^dir_nlink,^extra_isize
        blocksize = 4096
        inode_ratio = 32768
        inode_size = 128
    }
    G64_SSDJ = {
        features = has_journal,ext_attr,^resize_inode,dir_index,filetype,extent,flex_bg,sparse_super,large_file,^huge_file,uninit_bg,^dir_nlink,^extra_isize
        blocksize = 4096
        inode_ratio = 262144
        inode_size = 128
    }

SSDP is ext2 like, if yoursystem is battery-powered, you do not need journaling.
SSDJ is ext4 journaled like.
Of course I do not need extensive xattrs, nor have enough space for huge files.

BTW, I use cfdisk to create the partition and use its maximize facility.

All in all, I manage to lower the €/Mo ratio... 8)
_________________
Back to top
View user's profile Send private message
Ant P.
Advocate
Advocate


Joined: 18 Apr 2009
Posts: 2584
Location: UK

PostPosted: Thu Jul 05, 2012 5:11 pm    Post subject: Reply with quote

UDF.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Gentoo Chat All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum