add pmap checker

.gitignore

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+/target
+/data

README.md

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-# mem_checker
+# mem_checker
+
+## How to use
+
+### setup
+
+```
+git clone https://github.com/TakanoTaiga/mem_checker.git
+cd mem_checker
+mkdir ./data
+```
+
+### record
+
+ps
+```
+cargo run --bin auto_ps
+```
+
+pmap 
+```
+cargo run --bin auto_pmap
+```

src/bin/auto_pmap.rs

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+use std::collections::HashMap;
+use std::process::{Command, Stdio};
+use std::thread;
+use std::time::Duration;
+use std::path::Path;
+use std::fs::OpenOptions;
+use std::io::Write;
+
+fn main() {
+    loop {
+        let output = Command::new("pmap")
+            .args(["-x", "54875"])
+            .stdout(Stdio::piped())
+            .output()
+            .expect("Failed to execute command");
+
+        let output_str = String::from_utf8_lossy(&output.stdout);
+        let lines = output_str.lines().skip(1);
+
+        let mut rss_map: HashMap<String, u32> = HashMap::new();
+
+        for line in lines {
+            let columns: Vec<&str> = line.split_whitespace().collect();
+
+            let rss = columns.get(2).and_then(|&s| s.parse::<u32>().ok()).unwrap_or(0);
+            let name = columns.get(5).unwrap_or(&"");
+
+            if rss == 0 || !name.contains(".so") {
+                continue;
+            }
+
+            *rss_map.entry(name.to_string()).or_insert(0) += rss;
+        }
+
+        for (name, total_rss) in rss_map {
+            let file_name = format!("./data/{}.csv",name);
+                let path = Path::new(&file_name);
+                let mut file = OpenOptions::new()
+                    .write(true)
+                    .append(true)
+                    .create(true)
+                    .open(path)
+                    .expect("Failed to open file");
+
+                writeln!(file, "{}",total_rss)
+                    .expect("Failed to write to file");
+        }
+        thread::sleep(Duration::from_secs(1));
+    }
+}