Performance decrease (10 second delay) in database migration 8.0.0 vs 8.0.3

[EvgenyMuryshkin]

Hi,

After upgrading from 8.0.0 to 8.0.3, get a large performance decrease during database creation.

https://github.com/EvgenyMuryshkin/EF8PPerf

EF 9 also has the same issue

Include provider and version information

.NET 8/.NET 9
EF 8.0.0 => 8.0.3, 9.0.0-preview.2.24128.4
Windows 11 Pro
VS 2022 17.9.4/17.10.0 Preview 2.0

Thank you

[roji]

@EvgenyMuryshkin looks like a duplicate of #33176, which has already been fixed for 8.0.4. Can you please try the workaround in this comment and confirm?

[EvgenyMuryshkin]

@roji nope, did not work.
I think my issue is not model creation, but database creation.
Model is already created

[roji]

This doesn't repro for me (MacOS Sonoma):

I'm noticing that EF upgraded patch versions of SqlClient between 8.0.0 (SqlClient 5.1.1) and 8.0.3 (SqlClient 5.1.5). Can you try to take a dependency on SqlClient 5.1.1 when using EF Core 8.0.0 to see if the problem comes form there? I'm thinking possibly of #7283 or similar.

[EvgenyMuryshkin]

@roji EF 8.0.1 fast, 8.0.2 slow.

with 8.0.0
5.1.1 - fast
5.1.2 - slow

[roji]

Thanks for confirming!

The 5.1.2 release notes are here, the culprit may be dotnet/SqlClient#1983. This may very well be a dup of #7283.

/cc @David-Engel @cheenamalhotra

[cheenamalhotra]

Have you tried setting ConnectRetryCount=0 on the connection string to disable transient fault handling?

[ajcvickers]

@cheenamalhotra This should not be needed. Issue #7283 goes into this in detail.

[ajcvickers]

/cc @SamMonoRT

[roji]

@cheenamalhotra in addition to #7283, see dotnet/SqlClient#29 and dotnet/SqlClient#463 on the SqlClient side where this was discussed at length (especially why the connection string-based approach is insufficient here).