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BetterRed · 06-06-2014, 07:10 PM

@Hampshire Nanny - Presumably you have more than calibre on the 128GB flash drive. How is performance of other applications on other data on the same drive.

FWIW : I have a library of ~40,000 books (20G), and another of ~8,000 books (600GB), mirrored to a USB3.0 spinning disk drive. Calibre performance on those libraries is faster than the same libraries on an internal SATA2.0 spinning disk drive . That said, the performance on the internal SATA 2.0 disk is more than good enough.

Have you checked the speed of the USB3.0 flash drive. Here is a review of some speed testers ==>> 6 Tools to Test Read and Write Speed of USB Flash Drives

Try copying the 400+ books to an empty library without any existing custom columns and see how that goes. I have known composite columns to slow things down, but I hasten to add a) only on large libraries, and b) since Calibre 1.0 even those situations have gone away.

BR

06-06-2014, 07:10 PM	#3
BetterRed null operator (he/him) Posts: 21,648 Karma: 29711016 Join Date: Mar 2012 Location: Sydney Australia Device: none	@Hampshire Nanny - Presumably you have more than calibre on the 128GB flash drive. How is performance of other applications on other data on the same drive. FWIW : I have a library of ~40,000 books (20G), and another of ~8,000 books (600GB), mirrored to a USB3.0 spinning disk drive. Calibre performance on those libraries is faster than the same libraries on an internal SATA2.0 spinning disk drive . That said, the performance on the internal SATA 2.0 disk is more than good enough. Have you checked the speed of the USB3.0 flash drive. Here is a review of some speed testers ==>> 6 Tools to Test Read and Write Speed of USB Flash Drives Try copying the 400+ books to an empty library without any existing custom columns and see how that goes. I have known composite columns to slow things down, but I hasten to add a) only on large libraries, and b) since Calibre 1.0 even those situations have gone away. BR