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Ef savechanges slow

WebMay 10, 2011 · Especially Add calls DetectChanges which is responsible for the poor performance you experienced. I contrast to this the ObjectContext API calls DetectChanges only automatically in SaveChanges but not in AddObject and the other corresponding methods mentioned above. That's the reason why the default performance of … WebJun 15, 2024 · You may want to run performance profiler (part of VS) to see which functions are the ones that run slowly. If the saving bit is the problematic one there is also another configuration that you can set _dbContext.Configuration.ValidateOnSaveEnabled = false (it will be validated on SQL side anyway, also if you provide there always correct data …

Keeping a DbContext open overtime eventually slows …

WebJan 21, 2014 · It is fast when you process hundreds of records. Then when we move to 100k records, entity.saveChanges is very very slow. around 1-3 seconds per record. Then we … WebTo set up relationships between entities in different DbContext instances and schemas, you can follow these steps: Define the entity classes in each DbContext instance. Configure the mapping between the entities and the database tables in each context. In EF, you can use the OnModelCreating method to configure the mapping between the entities ... nutrafirst.in https://fearlesspitbikes.com

Getting Started with BulkSaveChanges - Entity Framework …

WebNov 19, 2024 · According to Admir's answer, I send every 20 records with one INSERT statement and fortunately ExecuteSqlCommand takes only 6 seconds. BUT SaveChanges () takes about 2 minutes! How can I overcome this problem? c# sql-server entity-framework entity-framework-6 sql-insert Share Follow edited Nov 19, 2024 at 21:40 … WebDec 12, 2013 · Getting the user records and removing them from the EF memory model is quick but context.SaveChanges() takes way too long. It takes about 2 minutes to delete … WebMar 28, 2015 · It's just slow by default. If you guys have been putting up with awful performance, you might want to reconsider your preconception that ORMs are meant to … nutraflo reviews for kidney stones

Why is DbContext.SaveChanges 10x slower in debug mode

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Ef savechanges slow

SaveChanges very slow - social.msdn.microsoft.com

WebApr 29, 2024 · The expectation is that the reuse of the same DbContext instance would be better for performance, but in fact it causes a pretty severe degradation. It would seem … WebNov 7, 2016 · 2 Answers Sorted by: 3 It might not be the SaveChanges call - the first time you make any call to the database in EF, it has to do some initial code generation from the metadata. You can pre-generate this though at compile-time: http://msdn.microsoft.com/en-us/library/bb896240.aspx I would be surprised if that's the only problem, but it might help.

Ef savechanges slow

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WebJan 30, 2024 · It fixes the part that's slow in the Application. However, the SaveChanges still take a lot of time because one database round-trip is made for every entity you save. So if you have 10k entities to insert, 10,000 database round-trip will be made which is INSANELY slow. Disclaimer: I'm the owner of Entity Framework Extensions WebOct 5, 2016 · With each change - If you want each save to run in its own transaction and be independent of other changes then run the save in the loop or after you make a change. Note that if there is a failure later in the code then the changes that have already occurred are persisted and will not be rolled back. This also has a higher performance cost as ...

WebMay 10, 2011 · 1. Using EF, add all your records to an empty staging table. Then use SQL to insert into the main (large and slow) table in a single SQL instruction. Then empty your staging table. It's a very fast way of inserting a lot of data into an already large table. WebDec 12, 2013 · Getting the user records and removing them from the EF memory model is quick but context.SaveChanges() takes way too long. It takes about 2 minutes to delete 1300 records from the database. Something is wrong here. It shouldn't be so slow. There is not a first compilation issue since subsequent invocations take some amount of time to …

WebDo SaveChanges () in packages of 100 inserts... or you can try with packages of 1000 items and see the changes in performance. Since during all this inserts, the context is the same and it is getting bigger, you can rebuild your context object every 1000 inserts. var yourContext = new YourContext (); I think this is the big gain. WebMar 18, 2024 · Currently inserting thousands (1000, 10000, 100000) of records is really slow. I think there is room for improvement, so I am creating feature request for bulk SaveChanges. Inspiration came form (EntityFramework Extensions). In my case, the factor between SaveChanges and BulkSaveChanges is even greater then:

WebJun 4, 2016 · Also, you call the SaveChanges method every iteration in your loop. This means you make a call to your DB every iteration to persist that entity and is intensive and time consuming. Place that line of code outside your loop. foreach (var taskCode in taskCodes) { //logic db.TaskCodes.Add (newTaskCode); } db.SaveChanges ();

WebRemarks. This method will automatically call DetectChanges () to discover any changes to entity instances before saving to the underlying database. This can be disabled via AutoDetectChangesEnabled. Entity Framework Core does not support multiple parallel operations being run on the same DbContext instance. nutrafol and finasteride together redditnutrafol and blood pressureWebFeb 16, 2015 · For the regular EF call ( .ToList () ), the profiling seems "normal" and is easy to read : Here we find the 8.4 seconds we have with the Stopwatch (profiling slow downs the perfs). We also find HitCount = 3500 along the call path, which is consistent with the 3500 lines in the test. nutra flo ingredients