Bug 501898 - Extremely slow SQLite → SQLite database migration process to NVME SSD
Summary: Extremely slow SQLite → SQLite database migration process to NVME SSD
Status: RESOLVED DUPLICATE of bug 325653
Alias: None
Product: digikam
Classification: Applications
Component: Database-Migration (other bugs)
Version First Reported In: 8.6.0
Platform: Microsoft Windows Microsoft Windows
: NOR normal
Target Milestone: ---
Assignee: Digikam Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-03-23 10:25 UTC by korwin
Modified: 2025-03-23 10:27 UTC (History)
1 user (show)

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Description korwin 2025-03-23 10:25:24 UTC 
§ STEPS TO REPRODUCE

1. Create a 2.5 GB SWLite database on a (slow) 5400 rpm HDD
2. Run its migration to a (fast) NVME SSD while preserving the database format

§ OBSERVED RESULT

Windows Process Manager shows:
• Source disk usage is around 0-1%;
• Target disk usage is around 95-100%;
• Transfer speed is around 1.5-2.0 MB/s.

§ EXPECTED RESULT

With read speeds from this HDD around 100MB/s, I expect the migration to complete in a few minutes.

§ SOFTWARE/OS VERSIONS

Microsoft Windows 10.0.19045.5608 (22H2)
KDE Frameworks: 6.10.0
Qt: Using 6.8.1 and built against 6.8.1
Build ABI: x86_64-little_endian-llp64
Kernel: winnt 10.0.19045

§ Additional info

• Overall progress is 13% in 15 hours.
• CrystalDiskInfo shows no problems for these disks.
Comment 1 Maik Qualmann 2025-03-23 10:26:53 UTC 

*** This bug has been marked as a duplicate of bug 325653 ***