lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

UBIFS: add no_chk_data_crc mount option

Browse Source 
UBIFS read performance can be improved by skipping the CRC
check when data nodes are read.  This option can be used if
the underlying media is considered to be highly reliable.
Note that CRCs are always checked for metadata.

Read speed on Arm platform with OneNAND goes from 19 MiB/s
to 27 MiB/s with data CRC checking disabled.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
This commit is contained in:
Adrian Hunter
2008-09-04 16:26:00 +03:00
committed by Artem Bityutskiy
parent 4793e7c5e1
commit 2953e73f1c
6 changed files with 61 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
Documentation/filesystems/ubifs.txt
View File

@ -89,6 +89,12 @@ fast_unmount do not commit on unmount; this option makes
bulk_read read more in one go to take advantage of flash
media that read faster sequentially
no_bulk_read (*) do not bulk-read
no_chk_data_crc skip checking of CRCs on data nodes in order to
improve read performance. Use this option only
if the flash media is highly reliable. The effect
of this option is that corruption of the contents
of a file can go unnoticed.
chk_data_crc (*) do not skip checking CRCs on data nodes
Quick usage instructions