Add cross-runtime streaming query stress test support

Author: shps951023

README.md

@@ -18,6 +18,16 @@ cargo add miniexcel
 
 MiniExcel requires Rust 1.85.0 or later.
 
+## Rust and .NET Stress Test
+
+Keep `MiniExcel-Rust` and the [.NET MiniExcel repository](https://github.com/mini-software/MiniExcel) in sibling directories, then run the shared stress harness from the .NET repository:
+
+```powershell
+pwsh ./benchmarks/compare-rust-dotnet.ps1
+```
+
+This benchmark compares dynamic streaming Query performance: Rust uses `MiniExcel::query`, and .NET uses `OpenXmlImporter.Query`. Save performance is not included. Both implementations stream the same 100,000-row XLSX workbook. The harness verifies matching row counts and reports elapsed time and peak working set over repeated runs. Results vary by environment, so compare values produced on the same machine.
+
 ## Features
 
 - Bounded-memory dynamic and typed worksheet streaming.

README.zh-CN.md

@@ -18,6 +18,16 @@ cargo add miniexcel
 
 MiniExcel 最低支持 Rust 1.85.0。
 
+## Rust 与 .NET 压力测试
+
+将 `MiniExcel-Rust` 与 [.NET MiniExcel 仓库](https://github.com/mini-software/MiniExcel) 放在同级目录，然后从 .NET 仓库运行共用压力测试脚本：
+
+```powershell
+pwsh ./benchmarks/compare-rust-dotnet.ps1
+```
+
+本测试比较动态流式 Query 性能：Rust 使用 `MiniExcel::query`，.NET 使用 `OpenXmlImporter.Query`，不包含 Save 性能。两种实现会流式读取同一份 100,000 行 XLSX 工作簿。脚本将校验读取行数一致，并报告多轮测试的耗时和峰值工作集。测试结果受运行环境影响，应以同一台机器产生的数据进行比较。
+
 ## 功能
 
 - 以有界内存流式读取动态行和类型化行。

miniexcel/examples/stress_query.rs

@@ -0,0 +1,33 @@
+use std::env;
+use std::error::Error;
+use std::io;
+
+use miniexcel::MiniExcel;
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut args = env::args_os().skip(1);
+    let path = args.next().ok_or_else(|| {
+        io::Error::new(io::ErrorKind::InvalidInput, "usage: stress_query <xlsx-path> [passes]")
+    })?;
+    let passes =
+        args.next().map(|value| value.to_string_lossy().parse::<usize>()).transpose()?.unwrap_or(1);
+
+    if passes == 0 || args.next().is_some() {
+        return Err(io::Error::new(
+            io::ErrorKind::InvalidInput,
+            "usage: stress_query <xlsx-path> [passes]",
+        )
+        .into());
+    }
+
+    let mut row_count = 0_u64;
+    for _ in 0..passes {
+        for row in MiniExcel::query(&path)? {
+            let _ = row?;
+            row_count += 1;
+        }
+    }
+
+    println!("{row_count}");
+    Ok(())
+}