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vanuda

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  1. Or actually not.. On my Thinkpad X300 ( early 2007 samsung ssd , no trim/ncq ) i can see a speed improve when doing a defrag.. Ok.. I know that this should not happen.. Normally the SSD will do My guess here is that what i actually see is that the number of disc accesses due to directory/file fragmentation is minimized. When booting the disc led is even rarely flashing.. I.e. there might be a need for a filesystem defragmentation ( not disc ) to improve SSD disc access.. When a file is defragmented in the filesystem and there are perhaps 100 fragments this slows down the access due to that the OS needs to do another 100 accesses to the disc... Ok.. I know that this access is fast.. But if there is plenty of accesses like this this unnneccesarily slows down the access of a single file.. And if there is plenty of files this slows down the system.. True/False.. Cannot say.. But even if the access is fast excessive IO does punish the access of a file.. Maybe this kind of defrag should not be done more than perhaps 2-3 times per year..
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