diff --git a/Cargo.toml b/Cargo.toml
index 0eb29a2..564b4aa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,7 +26,6 @@ flurry = { version = "0.5.1", optional = true }
 hashbrown = "0.14.5"
 hdrhistogram = "7.5.4"
 inventory = "0.3.15"
-jemallocator = "0.5.4"
 log = "0.4.22"
 mio = { version = "1.0.1", features = ["net", "os-poll"] }
 papaya = { version = "0.1.2", optional = true }
diff --git a/src/bench.rs b/src/bench.rs
index 016af7d..ffc2ba6 100644
--- a/src/bench.rs
+++ b/src/bench.rs
@@ -120,7 +120,7 @@
 //! An example of the CDF data will look like:
 //!
 //! ```txt
-//! cdf_ns percentile 0 0.0 1 0.0 2 0.0 3 10.0 4 20.0 5 20.0 ...
+//! cdf_ns percentile 0 0.00 1 0.00 2 0.00 3 10.00 4 20.00 5 20.00 ...
 //! ```
 //!
 //! It means there are not data points at 0/1/2 nanoseconds. At 3 nanoseconds, there are 10% data
diff --git a/src/stores/mod.rs b/src/stores.rs
similarity index 98%
rename from src/stores/mod.rs
rename to src/stores.rs
index 42cadd7..13d5589 100644
--- a/src/stores/mod.rs
+++ b/src/stores.rs
@@ -1,4 +1,4 @@
-//! The implementation of built-in key-value stores, and some helper functions.
+//! Adapters for built-in and external key-value stores.
 //!
 //! ## Configuration Format
 //!