diff --git a/Cargo.toml b/Cargo.toml
index 3580168e1..385297b18 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -62,6 +62,7 @@ tokenizer-api = { version= "0.3", path="./tokenizer-api", package="tantivy-token
 sketches-ddsketch = { version = "0.2.1", features = ["use_serde"] }
 futures-util = { version = "0.3.28", optional = true }
 fnv = "1.0.7"
+mediumvec = "1.3.0"
 
 [target.'cfg(windows)'.dependencies]
 winapi = "0.3.9"
@@ -81,6 +82,7 @@ time = { version = "0.3.10", features = ["serde-well-known", "macros"] }
 postcard = { version = "1.0.4", features = [
   "use-std",
 ], default-features = false }
+peakmem-alloc = "0.3.0"
 
 [target.'cfg(not(windows))'.dev-dependencies]
 criterion = { version = "0.5", default-features = false }
diff --git a/examples/doc_mem.rs b/examples/doc_mem.rs
new file mode 100644
index 000000000..aa8b616d2
--- /dev/null
+++ b/examples/doc_mem.rs
@@ -0,0 +1,335 @@
+#![allow(unused_imports)]
+#![allow(dead_code)]
+use std::alloc::System;
+use std::env::args;
+use std::net::Ipv6Addr;
+
+use columnar::{MonotonicallyMappableToU128, MonotonicallyMappableToU64};
+use common::{BinarySerializable, CountingWriter, DateTime, FixedSize};
+use peakmem_alloc::*;
+use tantivy::schema::{Field, FieldValue, OwnedValue, FAST, INDEXED, STRING, TEXT};
+use tantivy::tokenizer::PreTokenizedString;
+use tantivy::{doc, TantivyDocument};
+
+const GH_LOGS: &str = include_str!("../benches/gh.json");
+const HDFS_LOGS: &str = include_str!("../benches/hdfs.json");
+
+#[global_allocator]
+static GLOBAL: &PeakMemAlloc<System> = &INSTRUMENTED_SYSTEM;
+
+fn main() {
+    dbg!(std::mem::size_of::<TantivyDocument>());
+    dbg!(std::mem::size_of::<DocContainerRef>());
+    dbg!(std::mem::size_of::<OwnedValue>());
+    dbg!(std::mem::size_of::<OwnedValueMedVec>());
+    dbg!(std::mem::size_of::<ValueContainerRef>());
+    dbg!(std::mem::size_of::<mediumvec::vec32::Vec32::<u8>>());
+
+    let filter = args().nth(1);
+    measure_fn(
+        test_hdfs::<TantivyDocument>,
+        "hdfs TantivyDocument",
+        &filter,
+    );
+    measure_fn(
+        test_hdfs::<TantivyDocumentMedVec>,
+        "hdfs TantivyDocumentMedVec",
+        &filter,
+    );
+    measure_fn(
+        test_hdfs::<DocContainerRef>,
+        "hdfs DocContainerRef",
+        &filter,
+    );
+    measure_fn(test_gh::<TantivyDocument>, "gh TantivyDocument", &filter);
+    measure_fn(
+        test_gh::<TantivyDocumentMedVec>,
+        "gh TantivyDocumentMedVec",
+        &filter,
+    );
+    measure_fn(test_gh::<DocContainerRef>, "gh DocContainerRef", &filter);
+}
+fn measure_fn<F: FnOnce()>(f: F, name: &str, filter: &Option<std::string::String>) {
+    if let Some(filter) = filter {
+        if !name.contains(filter) {
+            return;
+        }
+    }
+    GLOBAL.reset_peak_memory();
+    f();
+    println!("Peak Memory {} : {:#?}", GLOBAL.get_peak_memory(), name);
+}
+fn test_hdfs<T: From<TantivyDocument>>() {
+    let schema = {
+        let mut schema_builder = tantivy::schema::SchemaBuilder::new();
+        schema_builder.add_u64_field("timestamp", INDEXED);
+        schema_builder.add_text_field("body", TEXT);
+        schema_builder.add_text_field("severity", STRING);
+        schema_builder.build()
+    };
+    let mut docs: Vec<T> = Vec::with_capacity(HDFS_LOGS.lines().count());
+    for doc_json in HDFS_LOGS.lines() {
+        let doc = TantivyDocument::parse_json(&schema, doc_json)
+            .unwrap()
+            .into();
+        docs.push(doc);
+    }
+}
+
+fn test_gh<T: From<TantivyDocument>>() {
+    let schema = {
+        let mut schema_builder = tantivy::schema::SchemaBuilder::new();
+        schema_builder.add_json_field("json", FAST);
+        schema_builder.build()
+    };
+    let mut docs: Vec<T> = Vec::with_capacity(GH_LOGS.lines().count());
+    for doc_json in GH_LOGS.lines() {
+        let json_field = schema.get_field("json").unwrap();
+
+        let json_val: serde_json::Map<String, serde_json::Value> =
+            serde_json::from_str(doc_json).unwrap();
+        let doc = tantivy::doc!(json_field=>json_val).into();
+        docs.push(doc);
+    }
+}
+
+#[derive(Clone, Debug, Default)]
+#[allow(dead_code)]
+pub struct TantivyDocumentMedVec {
+    field_values: mediumvec::Vec32<FieldValueMedVec>,
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub struct FieldValueMedVec {
+    pub field: Field,
+    pub value: OwnedValueMedVec,
+}
+
+/// This is a owned variant of `Value`, that can be passed around without lifetimes.
+/// Represents the value of a any field.
+/// It is an enum over all over all of the possible field type.
+#[derive(Debug, Clone, PartialEq)]
+pub enum OwnedValueMedVec {
+    /// A null value.
+    Null,
+    /// The str type is used for any text information.
+    Str(mediumvec::vec32::Vec32<u8>),
+    /// Unsigned 64-bits Integer `u64`
+    U64(u64),
+    /// Signed 64-bits Integer `i64`
+    I64(i64),
+    /// 64-bits Float `f64`
+    F64(f64),
+    /// Bool value
+    Bool(bool),
+    /// Date/time with nanoseconds precision
+    Date(DateTime),
+    Array(mediumvec::vec32::Vec32<Self>),
+    /// Dynamic object value.
+    Object(mediumvec::vec32::Vec32<(String, Self)>),
+    /// IpV6 Address. Internally there is no IpV4, it needs to be converted to `Ipv6Addr`.
+    IpAddr(Ipv6Addr),
+    /// Pre-tokenized str type,
+    PreTokStr(Box<PreTokenizedString>),
+    /// Arbitrarily sized byte array
+    Bytes(mediumvec::vec32::Vec32<u8>),
+}
+
+impl From<TantivyDocument> for TantivyDocumentMedVec {
+    fn from(doc: TantivyDocument) -> Self {
+        let field_values = doc
+            .into_iter()
+            .map(|fv| FieldValueMedVec {
+                field: fv.field,
+                value: fv.value.into(),
+            })
+            .collect();
+        TantivyDocumentMedVec { field_values }
+    }
+}
+impl From<OwnedValue> for OwnedValueMedVec {
+    fn from(value: OwnedValue) -> Self {
+        match value {
+            OwnedValue::Null => OwnedValueMedVec::Null,
+            OwnedValue::Str(s) => {
+                let bytes = s.into_bytes();
+                let vec = mediumvec::vec32::Vec32::from_vec(bytes);
+                OwnedValueMedVec::Str(vec)
+            }
+            OwnedValue::U64(u) => OwnedValueMedVec::U64(u),
+            OwnedValue::I64(i) => OwnedValueMedVec::I64(i),
+            OwnedValue::F64(f) => OwnedValueMedVec::F64(f),
+            OwnedValue::Bool(b) => OwnedValueMedVec::Bool(b),
+            OwnedValue::Date(d) => OwnedValueMedVec::Date(d),
+            OwnedValue::Array(arr) => {
+                let arr = arr.into_iter().map(|v| v.into()).collect();
+                OwnedValueMedVec::Array(arr)
+            }
+            OwnedValue::Object(obj) => {
+                let obj = obj.into_iter().map(|(k, v)| (k, v.into())).collect();
+                OwnedValueMedVec::Object(obj)
+            }
+            OwnedValue::IpAddr(ip) => OwnedValueMedVec::IpAddr(ip),
+            _ => panic!("Unsupported value type {:?}", value),
+        }
+    }
+}
+
+#[repr(packed)]
+pub struct FieldValueContainerRef {
+    pub field: u16,
+    pub value: ValueContainerRef,
+}
+
+#[repr(packed)]
+struct DocContainerRef {
+    container: OwnedValueRefContainer,
+    field_values: mediumvec::Vec32<FieldValueContainerRef>,
+}
+
+#[derive(Default)]
+struct OwnedValueRefContainer {
+    nodes: mediumvec::Vec32<ValueContainerRef>,
+    node_data: mediumvec::Vec32<u8>,
+}
+impl OwnedValueRefContainer {
+    fn shrink_to_fit(&mut self) {
+        self.nodes.shrink_to_fit();
+        self.node_data.shrink_to_fit();
+    }
+}
+
+impl From<TantivyDocument> for DocContainerRef {
+    fn from(doc: TantivyDocument) -> Self {
+        let mut container = OwnedValueRefContainer::default();
+        let field_values = doc
+            .into_iter()
+            .map(|fv| FieldValueContainerRef {
+                field: fv.field.field_id().try_into().unwrap(),
+                value: container.add_value(fv.value),
+            })
+            .collect();
+        container.shrink_to_fit();
+        Self {
+            field_values,
+            container,
+        }
+    }
+}
+
+// References to positions in two array, one for the OwnedValueRef and the other for the encoded
+// bytes
+#[derive(Debug, Clone, PartialEq)]
+pub enum ValueContainerRef {
+    /// A null value.
+    Null,
+    /// The str type is used for any text information.
+    Str(u32),
+    /// Unsigned 64-bits Integer `u64`
+    U64(u32), // position of the serialized 8 bytes in the data array
+    /// Signed 64-bits Integer `i64`
+    I64(u32), // position of the serialized 8 bytes in the data array
+    /// 64-bits Float `f64`
+    F64(u32), // position of the serialized 8 bytes in the data array
+    /// Bool value
+    Bool(bool), // inlined bool
+    /// Date/time with nanoseconds precision
+    Date(u32), // position of the serialized 8 byte in the data array
+    Array(NodeAddress),
+    /// Dynamic object value.
+    Object(NodeAddress),
+    /// IpV6 Address. Internally there is no IpV4, it needs to be converted to `Ipv6Addr`.
+    IpAddr(u32), // position of the serialized 16 bytes in the data array
+    /// Arbitrarily sized byte array
+    Bytes(u32),
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub struct NodeAddress {
+    pos: u32,
+    num_nodes: u32,
+}
+
+impl OwnedValueRefContainer {
+    pub fn add_value(&mut self, value: OwnedValue) -> ValueContainerRef {
+        match value {
+            OwnedValue::Null => ValueContainerRef::Null,
+            OwnedValue::U64(num) => ValueContainerRef::U64(write_into(&mut self.node_data, num)),
+            OwnedValue::I64(num) => ValueContainerRef::I64(write_into(&mut self.node_data, num)),
+            OwnedValue::F64(num) => ValueContainerRef::F64(write_into(&mut self.node_data, num)),
+            OwnedValue::Bool(b) => ValueContainerRef::Bool(b),
+            OwnedValue::Date(date) => ValueContainerRef::Date(write_into(
+                &mut self.node_data,
+                date.into_timestamp_nanos(),
+            )),
+            OwnedValue::Str(bytes) => {
+                ValueContainerRef::Str(write_into(&mut self.node_data, bytes))
+            }
+            OwnedValue::Bytes(bytes) => {
+                ValueContainerRef::Bytes(write_into(&mut self.node_data, bytes))
+            }
+            OwnedValue::Array(elements) => {
+                let pos = self.nodes.len() as u32;
+                let len = elements.len() as u32;
+                for elem in elements {
+                    let ref_elem = self.add_value(elem);
+                    self.nodes.push(ref_elem);
+                }
+                ValueContainerRef::Array(NodeAddress {
+                    pos,
+                    num_nodes: len,
+                })
+            }
+            OwnedValue::Object(entries) => {
+                let pos = self.nodes.len() as u32;
+                let len = entries.len() as u32;
+                for (key, value) in entries {
+                    let ref_key = self.add_value(OwnedValue::Str(key));
+                    let ref_value = self.add_value(value);
+                    self.nodes.push(ref_key);
+                    self.nodes.push(ref_value);
+                }
+                ValueContainerRef::Object(NodeAddress {
+                    pos,
+                    num_nodes: len,
+                })
+            }
+            OwnedValue::IpAddr(num) => {
+                ValueContainerRef::IpAddr(write_into(&mut self.node_data, num.to_u128()))
+            }
+            OwnedValue::PreTokStr(_) => todo!(),
+            OwnedValue::Facet(_) => todo!(),
+        }
+    }
+}
+
+fn write_into<T: BinarySerializable>(data: &mut mediumvec::Vec32<u8>, value: T) -> u32 {
+    let pos = data.len() as u32;
+    data.as_vec(|vec| value.serialize(vec).unwrap());
+    pos
+}
+
+fn write_into_2<T: BinarySerializable>(data: &mut mediumvec::Vec32<u8>, value: T) -> NodeAddress {
+    let pos = data.len() as u32;
+    let mut len = 0;
+    data.as_vec(|vec| {
+        let mut wrt = CountingWriter::wrap(vec);
+        value.serialize(&mut wrt).unwrap();
+        len = wrt.written_bytes() as u32;
+    });
+    NodeAddress {
+        pos,
+        num_nodes: len,
+    }
+}
+
+// impl From<ContainerDocRef> for TantivyDocument {
+// fn from(doc: ContainerDocRef) -> Self {
+// let mut doc2 = TantivyDocument::new();
+// for fv in doc.field_values {
+// let field = Field::from_field_id(fv.field as u32);
+// let value = doc.container.get_value(fv.value);
+// doc2.add(FieldValue::new(field, value));
+//}
+// doc2
+//}