Performance Issue: workbook.SaveDocument Slow on Linux Compared to Windows (.NET 8, DevExpress v23.1) - Stack Overflow

Description:

Hi Team, I am facing a performance issue while saving a workbook using workbook.SaveDocument on Linux. The same operation runs significantly faster on Windows.

Issue Details:

I am using .NET 8 and DevExpress v23.1 to create and save a workbook. Below is the execution time comparison:

• Windows (Ryzen 7, 8 Core, 32 GB RAM) → 30-35 seconds
• Linux (Ryzen 9 (Host), 4 Core, 16 GB RAM) → 80-90 seconds

Upon debugging, I found that the major slowdown occurs in the workbook.SaveDocument method on Linux, where it takes 70-80 seconds out of 80-90 seconds total execution time.

Configuration Details:

• .NET Target: .NET 8
• DevExpress Version: v23.1
• Windows Machine: 32 GB RAM, Ryzen 7, 8 Core
• Linux Machine: 16 GB RAM, Ryzen 9 (Host), 4 Core
• Linux (Upgraded Config for Testing): 32 GB RAM, 12 Core

Experiments & Findings:

1. Tried using FileStream instead of MemoryStream – No performance improvement observed.
2. Increased RAM on Linux to 32 GB and CPU cores to 12 – No impact on performance.
3. Observed that workbook.SaveDocument is the bottleneck – It takes 70-80 seconds out of 80-90 seconds on Linux.

Replication Steps:

I have created a minimal reproducible example to demonstrate this issue. You can test it by hitting the '/generate-workbook/template' route in the sample app. Also I have attached my Program.cs file for reference.

Sample App Repository: GitHub Link

Questions:

1. Is this a known issue with DevExpress Spreadsheet on Linux?
2. Are there any optimizations or workarounds to improve the performance on Linux?
3. Does DevExpress internally use any Windows-specific optimizations that could be missing on Linux?
4. Would upgrading to a newer version (if available) help mitigate this issue?
5. Are there any recommended configurations for improving workbook save performance on Linux?

Any insights or recommendations would be greatly appreciated. Thanks!