BulkInsert allows you to improve EF performance by inserting multiples entities with bulk operations.

Why BulkInsert?

For HUGE performance gains, Entity Framework makes one database round-trip for each entity to insert.

So if you want to add 10,000 entities, 10,000 database round trip will be required which is INSANELY slow. To use BulkInsert, you will need to use a third-party library.

Operations 1,000 Entities 2,000 Entities 5,000 Entities
BulkInsert 6 ms 10 ms 15 ms
SaveChanges 1,000 ms 2,000 ms 5,000 ms


// using Z.EntityFramework.Extensions; // Don't forget to include this.

// Easy to use

// Easy to customize
context.BulkInsert(list, bulk => bulk.BatchSize = 100);

Supported Libraries

Library Type EF Version Support Doc Features
Z.EntityFramework.Extensions PRO EF6 < 1 Day Yes Bulk SaveChanges
Bulk Insert
Bulk Update
Bulk Delete
Bulk Merge

Unsuported Libraries

Use these libraries at your risk!

Library Type EF Version Support Doc Features
EFUtilities FREE EF5
No No Bulk Insert
Batch Delete
Batch Update
Include Optimized
EntityFramework.BulkInsert FREE EF5
No Yes Bulk Insert