add missing file

src/config/oltp.rs

@@ -0,0 +1,19 @@
+use super::*;
+
+#[derive(Clone, Deserialize)]
+pub struct Oltp {
+    /// The number of connections this process will have to each endpoint.
+    poolsize: usize,
+    // number of threads for oltp tasks
+    threads: usize,
+}
+
+impl Oltp {
+    pub fn threads(&self) -> usize {
+        self.threads
+    }
+
+    pub fn poolsize(&self) -> usize {
+        std::cmp::max(1, self.poolsize)
+    }
+}