BulkSaveChanges allows you to improve EF performance by saving multiples entities with bulk operations.
For HUGE performance gains, Entity Framework makes one database round-trip for each entity to insert/update/delete.
So if you want to save (add, modify or remove) 10,000 entities, 10,000 database round trip will be required which is INSANELY slow. To use BulkSaveChanges, you will need to use a third-party library.
|Operations||1,000 Entities||2,000 Entities||5,000 Entities|
|BulKSaveChanges||90 ms||150 ms||350 ms|
|SaveChanges||1,000 ms||2,000 ms||5,000 ms|
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|Z.EntityFramework.Extensions||PRO||EF6||< 1 Day||Yes||Bulk SaveChanges