On Fri, Apr 3, 2009 at 2:24 PM, <david.hagood@xxxxxxxxx> wrote:
> Has anybody done any benchmarking on POP flash read/write speeds (using
> JFFS2) vs. MMC/SDHC card access (using ext[234])? Or for that matter, has
> anybody done any playing around with using the execute in place function
> of JFFS2 to see if there is any over-all speed advantage (due to reduced
> pressure on the RAM) vs. loading into RAM?
>
UBIFS on POP NAND
Version 1.03c ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
beagleboard 300M 2333 86 19899 45 10420 59 2289 95 17719 93 2060 93
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 5310 94 7931 96 4439 87 4734 85 +++++ +++ 3082 95
beagleboard,300M,2333,86,19899,45,10420,59,2289,95,17719,93,2060.1,93,16,5310,94,7931,96,4439,87,4734,85,+++++,+++,3082,95
ext3 (noatime,async,data=ordered) on MMC (4GB class 6)
Version 1.03c ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
beagleboard 300M 2026 81 4553 11 4281 6 2502 92 16079 14 1672 23
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 7135 95 +++++ +++ 12173 95 5040 67 +++++ +++ 11766 96
beagleboard,300M,2026,81,4553,11,4281,6,2502,92,16079,14,1672.3,23,16,7135,95,+++++,+++,12173,95,5040,67,+++++,+++,11766,96
ext3 (noatime,async,data=writeback) on MMC (4GB class 6)
Version 1.03c ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
beagleboard 300M 2343 85 19370 40 10937 61 2312 95 19176 94 3122 93
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 5194 93 7863 95 4511 87 4970 89 +++++ +++ 3076 95
beagleboard,300M,2343,85,19370,40,10937,61,2312,95,19176,94,3122.3,93,16,5194,93,7863,95,4511,87,4970,89,+++++,+++,3076,95
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