In version 5 of LiteDB, the file upload speed to the database has slowed down.

[BibaAndBoba23]

Good day! We are using the fourth version of LiteDB as a file cache. Upon upgrading to version 5, we noticed a significant drop in performance.
Example of data loading:

using LiteDatabase cache_database = new LiteDatabase(connectionString: this.connection_string); file_stream.Position = 0; LiteFileInfo lite_file_info = cache_database.FileStorage.Upload(id: $"{this.id_server}/{id_file}", filename: file_stream.Name, stream: file_stream);

maybe there are new ways to quickly download/upload files?

[BibaAndBoba23]

You can see detailed information about the test results on this page:
http://bug.sdpss.ru/issue/SDP-13037/Nizkaya-skorost-zagruzki-fajlov-pri-obnovlenii-versii-LiteDB-do-5

[JKamsker]

The detailed information is hidden behind an auth wall.

[Lihoradit]

Hello, we've encountered an issue with LiteDB5 where the file upload speed is slower than in version 4. The screenshot below shows the measurements for a 1GB file.

[Lihoradit]

*Re-measurement with different file sizes:
Calculation: minutes/seconds

5 files 1Gb
Cache size	0Gb	11 Gb
LiteDb 5	17:41,84	20:50,11
LiteDB 4	05:14,66	11:00.91

File tree size 76 Mb
Cache size	0Gb	11Gb
LiteDB 5	00:12,20	00:14,45
LiteDB 4	00:07,50	00:08,72

Image 135Mb
Cache size	0Gb	11Gb
LiteDB 5	00:26,05	00:33,30
LiteDB 4	00:05,11	00:05,56

10 files 20 Mb
Cache size	0Gb	11Gb
LiteDb 5	00:43,02	00:45,94
LiteDB 4	00:12,34	00:10,76

-On LiteDB 4, there seems to be a cap after which nothing is written to the cache, even though there is 65GB free on the C drive.
-If you cancel the file copying process through document management, the temporary files remain in the cache folder and are not deleted.
-The cache write limit is always different; on 11.09, my cap was 9.7GB, and on 12.09, it was 11.8GB. This might be slowing down the file copying speed to the disk.