That seems odd to me too.
It seems that you only have about 35 files on the system. Even with worst
case overheads I would net expect more than 30kB extra YAFFS "bloat".
Are you sure the the 2.1MB figure tor ext2 is correct?
-- CHarles
On Sunday 28 March 2004 23:25, Skumar wrote:
> Hi,
> i am copying files & the size of files on yaffs on more.
> here r the logs
> i have copied /lib to yaffs
> size of /lib on ext2 is 2.1M but on yaffs it is 4.3M
>
> i am not able to understand what is happening?
>
> Regards
> Sharath
>
>
> Linux login: root
> [root@Linux /root]$df
> Filesystem 1k-blocks Used Available Use% Mounted on
> /dev/ram0 7931 5278 2244 70% /
> /dev/mtdblock1 11248 96 11152 1% /mnt/NAND
> [root@Linux /root]$cd /lib
> [root@Linux /lib]$du -h
> 2.1M .
> [root@Linux /lib]$df -h
> Filesystem Size Used Available Use% Mounted on
> /dev/ram0 7.7M 5.2M 2.2M 70% /
> /dev/mtdblock1 11.0M 96.0k 10.9M 1% /mnt/NAND
> [root@Linux /lib]$cp -R /lib /mnt/NAND/
> [root@Linux /lib]$cd /mnt/NAND/
> [root@Linux NAND]$du -h
> 4.3M ./lib
> 0 ./lost+found
> 4.3M .
> [root@Linux NAND]$cd lib
> [root@Linux lib]$du -h
> 4.3M .
> $df -h
> Filesystem Size Used Available Use% Mounted on
> /dev/ram0 7.7M 5.2M 2.2M 70% /
> /dev/mtdblock1 11.0M 4.4M 6.5M 40% /mnt/NAND
> [root@Linux lib]$cat /proc/yaffs
> YAFFS built:Mar 28 2004 15:29:50
> $Id: yaffs_fs.c,v 1.32 2003/10/29 20:42:34 charles Exp $
> $Id: yaffs_guts.c,v 1.33 2003/11/16 07:40:42 charles Exp $
>
> Device yaffs
> startBlock......... 1
> endBlock........... 703
> chunkGroupBits..... 0
> chunkGroupSize..... 1
> nErasedBlocks...... 423
> nTnodesCreated..... 700
> nFreeTnodes........ 28
> nObjectsCreated.... 100
> nFreeObjects....... 62
> nFreeChunks........ 13597
> nPageWrites........ 0
> nPageReads......... 70
> nBlockErasures..... 0
> nGCCopies.......... 0
> garbageCollections. 0
> passiveGCs......... 0
> nRetriedWrites..... 0
> nRetireBlocks...... 0
> eccFixed........... 0
> eccUnfixed......... 0
> tagsEccFixed....... 0
> tagsEccUnfixed..... 424
> cacheHits.......... 0
> nDeletedFiles...... 0
> nUnlinkedFiles..... 0
> nBackgroudDeletions 0
> useNANDECC......... 0
>
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