[Yaffs] Performance of overwrite vs new file

Roberts Nathan-mcg31137 Nathan.Roberts at motorola.com
Wed Oct 12 16:24:00 BST 2005


I've run into an interesting performance issue that I 
was hoping someone with more knowledge of YAFFS's inner
workings could explain rather quickly.

Essentially, I am observing that overwriting a file (1MB or so)
takes about 7 times longer than writing exactly the same file 
under a new name.

This is using YAFFS1 on NAND with 512B pages.

Thanks for any insight.



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