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ilovejedd · 10-14-2018, 10:14 AM

What I do is create the empty library in Calibre GUI first (including any custom columns), then quit Calibre GUI. On Windows, I used the ff command line:

Code:

calibredb add --duplicates --recurse --library-path "[DriveLetter]:\path\to\your\calibre\library"
"[DriveLetter]:\path\to\ebooks\you\want\to\add"

By the way, I ran the same import test on a Windows 10 netbook with i3-3227U 1.9GHz, 4GB RAM and 320GB HDD (waiting for Black Friday sales on 1TB SSDs). Import from internal HDD to internal HDD took 3 1/2 freakin' hours. CPU load hovered at 3-5% and Disk 1 C: was constantly at 90-100% load.

Ran the import test again using the exact same netbook this time with source and destination both on a 256GB Samsung 830 SSD connected via USB 3.0. Import took a mere 21 min 41s. One CPU core was constantly maxed out and Disk 2 D: load was around 20%.

Both tests were performed with Windows Defender Real-Time Protection disabled.

Too sleepy last night (didn't expect the laptop HDD test to take 3.5 freakin' hours) but will be running a couple more import tests on the netbook today. This time, I'll be testing a portable USB HDD and a Samsung Fit flash drive.

10-14-2018, 10:14 AM	#17
ilovejedd hopeless n00b Posts: 5,110 Karma: 19597086 Join Date: Jan 2009 Location: in the middle of nowhere Device: PW4, PW3, Libra H2O, iPad 10.5, iPad 11, iPad 12.9	What I do is create the empty library in Calibre GUI first (including any custom columns), then quit Calibre GUI. On Windows, I used the ff command line: Code: calibredb add --duplicates --recurse --library-path "[DriveLetter]:\path\to\your\calibre\library" "[DriveLetter]:\path\to\ebooks\you\want\to\add" By the way, I ran the same import test on a Windows 10 netbook with i3-3227U 1.9GHz, 4GB RAM and 320GB HDD (waiting for Black Friday sales on 1TB SSDs). Import from internal HDD to internal HDD took 3 1/2 freakin' hours. CPU load hovered at 3-5% and Disk 1 C: was constantly at 90-100% load. Ran the import test again using the exact same netbook this time with source and destination both on a 256GB Samsung 830 SSD connected via USB 3.0. Import took a mere 21 min 41s. One CPU core was constantly maxed out and Disk 2 D: load was around 20%. Both tests were performed with Windows Defender Real-Time Protection disabled. Too sleepy last night (didn't expect the laptop HDD test to take 3.5 freakin' hours) but will be running a couple more import tests on the netbook today. This time, I'll be testing a portable USB HDD and a Samsung Fit flash drive.