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On Sat, May 2, 2009 at 12:16 PM, Martin Herrman <martin@×××××××.nl> wrote: |
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> |
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> After reading this: |
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> |
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> http://ext4.wiki.kernel.org/index.php/Ext4_Howto#Converting_an_ext3_filesystem_to_ext4 |
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> |
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> do you have any experience with mounting your ext3 filesystems using the |
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> ext4 module? Is the performance improvement noticeable? |
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I have my ext3 mounted using ext4 driver, but I don't notice anything |
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better or worse. The on-disk structures are the same, obviously, so |
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any improvement would be the difference between how ext4 driver |
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handles the ext3 data in a different way (dealloc and mballoc, as that |
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wiki page says). |
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|
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To really gain any improvement you'd need to use the new on-disk |
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format, which the tune2fs stuff will do for any NEW files, but all |
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existing files will still be old. You'd probably be better off making |
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a backup, formatting as ext4, then restoring backup. |
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|
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However, with that being said, I used a freshly-formatted ext4 in my |
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laptop and still don't notice any difference compared to when it had |
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ext3. |
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