Performance regression between 7.10.1 and 8.0.1
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Key: DNET-1042
URL: http://tracker.firebirdsql.org/browse/DNET-1042
Project: .NET Data provider
Issue Type: Bug
Components: ADO.NET Provider
Affects Versions: 8.0.1.0
Environment: Win10, FB 3.0.7
Reporter: Rand Random
Assignee: Jiri Cincura
The performance to read data dropped to half between 7.10.1 and 8.0.1.
On 7.10.1 my test finishes with 11.14 s.
On 8.0.1 my test finishes with 28.72 s.
I have created this github project with the code demonstrating my issue
https://github.com/Rand-Random/FbPerf
Only this file contains code:
https://github.com/Rand-Random/FbPerf/blob/main/FbPerf8/FbPerfTest.cs
This *.cs file reads 1 million rows from a database containing 5 million
records.
You can find the used database 7-zipped as TESTPERF.7z in the root of the
github project, the file FbPerfTest.cs also contains code how I created/filled
the test database, in case it is relevent.
The C# project FbPerf7 has the NuGet package for 7.10.1, while the C# project
FbPerf8 has the NuGet package version 8.0.1.
I am using BenchmarkDotNet for the performance tests, I added the results as
images into the root of the github project.
The perf7.jpg contains the result for the FbPerf7 C# project, and the perf8.jpg
for the FbPerf8 C# project.
Please be aware of the fact that the folder FbPerf7 only contains the *.csproj
file and not a single *.cs file, this is because I am linking existing files
from the FbPerf8 folder, I do this to avoid writing the test twice.
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