diff --git a/cluster/raft/raft.go b/cluster/raft/raft.go
index 996345e0..347a7012 100644
--- a/cluster/raft/raft.go
+++ b/cluster/raft/raft.go
@@ -1,6 +1,7 @@
 package raft
 
 import (
+	"bytes"
 	"encoding/base64"
 	"fmt"
 	"io"
@@ -15,7 +16,6 @@ import (
 	"github.com/datarhei/core/v16/cluster/store"
 	"github.com/datarhei/core/v16/encoding/json"
 	"github.com/datarhei/core/v16/log"
-	"github.com/datarhei/core/v16/mem"
 	"go.etcd.io/bbolt"
 
 	"github.com/hashicorp/go-hclog"
@@ -318,18 +318,6 @@ func (r *raft) LeadershipTransfer(id string) error {
 	return nil
 }
 
-type readCloserWrapper struct {
-	io.Reader
-}
-
-func (rcw *readCloserWrapper) Read(p []byte) (int, error) {
-	return rcw.Reader.Read(p)
-}
-
-func (rcw *readCloserWrapper) Close() error {
-	return nil
-}
-
 type Snapshot struct {
 	Metadata *hcraft.SnapshotMeta
 	Data     string
@@ -359,14 +347,14 @@ func (r *raft) Snapshot() (io.ReadCloser, error) {
 		Data:     base64.StdEncoding.EncodeToString(data),
 	}
 
-	buffer := mem.Get()
+	buffer := &bytes.Buffer{}
 	enc := json.NewEncoder(buffer)
 	err = enc.Encode(snapshot)
 	if err != nil {
 		return nil, err
 	}
 
-	return &readCloserWrapper{buffer}, nil
+	return io.NopCloser(buffer), nil
 }
 
 func (r *raft) start(fsm hcraft.FSM, peers []Peer, inmem bool) error {
diff --git a/http/client/client.go b/http/client/client.go
index ae25779e..a4d2f65c 100644
--- a/http/client/client.go
+++ b/http/client/client.go
@@ -661,7 +661,7 @@ func (r *restclient) login() error {
 	e := json.NewEncoder(buf)
 	e.Encode(login)
 
-	req, err := http.NewRequest("POST", r.address+r.prefix+"/login", buf)
+	req, err := http.NewRequest("POST", r.address+r.prefix+"/login", buf.Reader())
 	if err != nil {
 		return err
 	}
diff --git a/http/client/events.go b/http/client/events.go
index e2f25279..22780e1e 100644
--- a/http/client/events.go
+++ b/http/client/events.go
@@ -19,7 +19,7 @@ func (r *restclient) Events(ctx context.Context, filters api.EventFilters) (<-ch
 	header := make(http.Header)
 	header.Set("Accept", "application/x-json-stream")
 
-	stream, err := r.stream(ctx, "POST", "/v3/events", nil, header, "application/json", buf)
+	stream, err := r.stream(ctx, "POST", "/v3/events", nil, header, "application/json", buf.Reader())
 	if err != nil {
 		return nil, err
 	}
diff --git a/http/client/process.go b/http/client/process.go
index 485ab313..6a5f5e11 100644
--- a/http/client/process.go
+++ b/http/client/process.go
@@ -74,7 +74,7 @@ func (r *restclient) ProcessAdd(p *app.Config, metadata map[string]interface{})
 	e := json.NewEncoder(buf)
 	e.Encode(config)
 
-	_, err := r.call("POST", "/v3/process", nil, nil, "application/json", buf)
+	_, err := r.call("POST", "/v3/process", nil, nil, "application/json", buf.Reader())
 	if err != nil {
 		return err
 	}
@@ -95,7 +95,7 @@ func (r *restclient) ProcessUpdate(id app.ProcessID, p *app.Config, metadata map
 	query := &url.Values{}
 	query.Set("domain", id.Domain)
 
-	_, err := r.call("PUT", "/v3/process/"+url.PathEscape(id.ID), query, nil, "application/json", buf)
+	_, err := r.call("PUT", "/v3/process/"+url.PathEscape(id.ID), query, nil, "application/json", buf.Reader())
 	if err != nil {
 		return err
 	}
@@ -116,7 +116,7 @@ func (r *restclient) ProcessReportSet(id app.ProcessID, report *app.Report) erro
 	query := &url.Values{}
 	query.Set("domain", id.Domain)
 
-	_, err := r.call("PUT", "/v3/process/"+url.PathEscape(id.ID)+"/report", query, nil, "application/json", buf)
+	_, err := r.call("PUT", "/v3/process/"+url.PathEscape(id.ID)+"/report", query, nil, "application/json", buf.Reader())
 	if err != nil {
 		return err
 	}
@@ -145,7 +145,7 @@ func (r *restclient) ProcessCommand(id app.ProcessID, command string) error {
 	query := &url.Values{}
 	query.Set("domain", id.Domain)
 
-	_, err := r.call("PUT", "/v3/process/"+url.PathEscape(id.ID)+"/command", query, nil, "application/json", buf)
+	_, err := r.call("PUT", "/v3/process/"+url.PathEscape(id.ID)+"/command", query, nil, "application/json", buf.Reader())
 
 	return err
 }
@@ -182,7 +182,7 @@ func (r *restclient) ProcessMetadataSet(id app.ProcessID, key string, metadata a
 	query := &url.Values{}
 	query.Set("domain", id.Domain)
 
-	_, err := r.call("PUT", "/v3/process/"+url.PathEscape(id.ID)+"/metadata/"+url.PathEscape(key), query, nil, "application/json", buf)
+	_, err := r.call("PUT", "/v3/process/"+url.PathEscape(id.ID)+"/metadata/"+url.PathEscape(key), query, nil, "application/json", buf.Reader())
 
 	return err
 }
@@ -215,7 +215,7 @@ func (r *restclient) ProcessProbeConfig(p *app.Config) (api.Probe, error) {
 	e := json.NewEncoder(buf)
 	e.Encode(config)
 
-	data, err := r.call("POST", "/v3/process/probe", nil, nil, "application/json", buf)
+	data, err := r.call("POST", "/v3/process/probe", nil, nil, "application/json", buf.Reader())
 	if err != nil {
 		return probe, err
 	}
diff --git a/http/middleware/compress/compress.go b/http/middleware/compress/compress.go
index 43688d2f..c4244503 100644
--- a/http/middleware/compress/compress.go
+++ b/http/middleware/compress/compress.go
@@ -2,7 +2,6 @@ package compress
 
 import (
 	"bufio"
-	"bytes"
 	"fmt"
 	"io"
 	"net"
@@ -55,7 +54,7 @@ type compressResponseWriter struct {
 	wroteBody           bool
 	minLength           int
 	minLengthExceeded   bool
-	buffer              *bytes.Buffer
+	buffer              *mem.Buffer
 	code                int
 	headerContentLength string
 	scheme              string
diff --git a/http/middleware/hlsrewrite/hlsrewrite.go b/http/middleware/hlsrewrite/hlsrewrite.go
index 02f21f2c..bfc6fd47 100644
--- a/http/middleware/hlsrewrite/hlsrewrite.go
+++ b/http/middleware/hlsrewrite/hlsrewrite.go
@@ -127,7 +127,7 @@ func (h *hlsrewrite) rewrite(c echo.Context, next echo.HandlerFunc) error {
 
 type hlsRewriter struct {
 	http.ResponseWriter
-	buffer *bytes.Buffer
+	buffer *mem.Buffer
 }
 
 func (g *hlsRewriter) Write(data []byte) (int, error) {
@@ -137,9 +137,9 @@ func (g *hlsRewriter) Write(data []byte) (int, error) {
 	return w, err
 }
 
-func (g *hlsRewriter) rewrite(pathPrefix []byte, buffer *bytes.Buffer) {
+func (g *hlsRewriter) rewrite(pathPrefix []byte, buffer *mem.Buffer) {
 	// Find all URLS in the .m3u8 and add the session ID to the query string
-	scanner := bufio.NewScanner(g.buffer)
+	scanner := bufio.NewScanner(g.buffer.Reader())
 	for scanner.Scan() {
 		line := scanner.Bytes()
 
diff --git a/http/middleware/hlsrewrite/hlsrewrite_test.go b/http/middleware/hlsrewrite/hlsrewrite_test.go
index 7fb5341e..a149feaa 100644
--- a/http/middleware/hlsrewrite/hlsrewrite_test.go
+++ b/http/middleware/hlsrewrite/hlsrewrite_test.go
@@ -1,10 +1,10 @@
 package hlsrewrite
 
 import (
-	"bytes"
 	"os"
 	"testing"
 
+	"github.com/datarhei/core/v16/mem"
 	"github.com/stretchr/testify/require"
 )
 
@@ -16,12 +16,12 @@ func TestRewrite(t *testing.T) {
 	require.NoError(t, err)
 
 	r := &hlsRewriter{
-		buffer: &bytes.Buffer{},
+		buffer: &mem.Buffer{},
 	}
 
 	r.Write(data)
 
-	buffer := &bytes.Buffer{}
+	buffer := &mem.Buffer{}
 	prefix := []byte("/path/to/foobar/")
 	r.rewrite(prefix, buffer)
 
@@ -33,10 +33,10 @@ func BenchmarkRewrite(b *testing.B) {
 	require.NoError(b, err)
 
 	r := &hlsRewriter{
-		buffer: &bytes.Buffer{},
+		buffer: &mem.Buffer{},
 	}
 
-	buffer := &bytes.Buffer{}
+	buffer := &mem.Buffer{}
 	prefix := []byte("/path/to/foobar/")
 
 	for i := 0; i < b.N; i++ {
diff --git a/http/middleware/session/HLS.go b/http/middleware/session/HLS.go
index c76dd4d2..f8654bd6 100644
--- a/http/middleware/session/HLS.go
+++ b/http/middleware/session/HLS.go
@@ -3,7 +3,6 @@ package session
 
 import (
 	"bufio"
-	"bytes"
 	"io"
 	"net/http"
 	"net/url"
@@ -11,6 +10,7 @@ import (
 	"path/filepath"
 	"strings"
 
+	"github.com/datarhei/core/v16/mem"
 	"github.com/datarhei/core/v16/net"
 	"github.com/lithammer/shortuuid/v4"
 
@@ -233,7 +233,7 @@ func (h *handler) handleHLSEgress(c echo.Context, _ string, data map[string]inte
 
 type segmentReader struct {
 	reader io.ReadCloser
-	buffer *bytes.Buffer
+	buffer *mem.Buffer
 	size   int64
 }
 
@@ -255,7 +255,7 @@ func (r *segmentReader) getSegments(dir string) []string {
 	segments := []string{}
 
 	// Find all segment URLs in the .m3u8
-	scanner := bufio.NewScanner(r.buffer)
+	scanner := bufio.NewScanner(r.buffer.Reader())
 	for scanner.Scan() {
 		line := scanner.Text()
 
@@ -299,7 +299,7 @@ func (r *segmentReader) getSegments(dir string) []string {
 
 type sessionRewriter struct {
 	http.ResponseWriter
-	buffer *bytes.Buffer
+	buffer *mem.Buffer
 }
 
 func (g *sessionRewriter) Write(data []byte) (int, error) {
@@ -307,11 +307,11 @@ func (g *sessionRewriter) Write(data []byte) (int, error) {
 	return g.buffer.Write(data)
 }
 
-func (g *sessionRewriter) rewriteHLS(sessionID string, requestURL *url.URL, buffer *bytes.Buffer) {
+func (g *sessionRewriter) rewriteHLS(sessionID string, requestURL *url.URL, buffer *mem.Buffer) {
 	isMaster := false
 
 	// Find all URLS in the .m3u8 and add the session ID to the query string
-	scanner := bufio.NewScanner(g.buffer)
+	scanner := bufio.NewScanner(g.buffer.Reader())
 	for scanner.Scan() {
 		byteline := scanner.Bytes()
 
diff --git a/http/middleware/session/HLS_test.go b/http/middleware/session/HLS_test.go
index e5cede1a..b7bc6564 100644
--- a/http/middleware/session/HLS_test.go
+++ b/http/middleware/session/HLS_test.go
@@ -19,7 +19,7 @@ func TestHLSSegmentReader(t *testing.T) {
 
 	br := &segmentReader{
 		reader: io.NopCloser(r),
-		buffer: &bytes.Buffer{},
+		buffer: &mem.Buffer{},
 	}
 
 	_, err = io.ReadAll(br)
@@ -66,7 +66,7 @@ func TestHLSRewrite(t *testing.T) {
 	require.NoError(t, err)
 
 	br := &sessionRewriter{
-		buffer: &bytes.Buffer{},
+		buffer: &mem.Buffer{},
 	}
 
 	_, err = br.Write(data)
@@ -75,7 +75,7 @@ func TestHLSRewrite(t *testing.T) {
 	u, err := url.Parse("http://example.com/test.m3u8")
 	require.NoError(t, err)
 
-	buffer := &bytes.Buffer{}
+	buffer := &mem.Buffer{}
 
 	br.rewriteHLS("oT5GV8eWBbRAh4aib5egoK", u, buffer)
 
diff --git a/http/middleware/session/session.go b/http/middleware/session/session.go
index 3f12f405..d30eae08 100644
--- a/http/middleware/session/session.go
+++ b/http/middleware/session/session.go
@@ -1,7 +1,6 @@
 package session
 
 import (
-	"bytes"
 	"fmt"
 	"io"
 	"net/http"
@@ -177,7 +176,7 @@ func verifySession(raw interface{}, path, referrer string) (map[string]interface
 	return data, nil
 }
 
-func headerSize(header http.Header, buffer *bytes.Buffer) int64 {
+func headerSize(header http.Header, buffer *mem.Buffer) int64 {
 	buffer.Reset()
 	header.Write(buffer)
 
diff --git a/http/middleware/session/session_test.go b/http/middleware/session/session_test.go
index b8633b19..f5c0c597 100644
--- a/http/middleware/session/session_test.go
+++ b/http/middleware/session/session_test.go
@@ -1,11 +1,11 @@
 package session
 
 import (
-	"bytes"
 	"net/http"
 	"testing"
 
 	"github.com/datarhei/core/v16/encoding/json"
+	"github.com/datarhei/core/v16/mem"
 
 	"github.com/stretchr/testify/require"
 )
@@ -143,7 +143,7 @@ func TestHeaderSize(t *testing.T) {
 	header.Add("Content-Type", "application/json")
 	header.Add("Content-Encoding", "gzip")
 
-	buffer := &bytes.Buffer{}
+	buffer := &mem.Buffer{}
 	size := headerSize(header, buffer)
 
 	require.Equal(t, "Content-Encoding: gzip\r\nContent-Type: application/json\r\n", buffer.String())
@@ -156,7 +156,7 @@ func BenchmarkHeaderSize(b *testing.B) {
 	header.Add("Content-Type", "application/json")
 	header.Add("Content-Encoding", "gzip")
 
-	buffer := &bytes.Buffer{}
+	buffer := &mem.Buffer{}
 
 	for i := 0; i < b.N; i++ {
 		headerSize(header, buffer)
diff --git a/io/fs/mem.go b/io/fs/mem.go
index 2eb68410..237d486e 100644
--- a/io/fs/mem.go
+++ b/io/fs/mem.go
@@ -2,7 +2,6 @@ package fs
 
 import (
 	"bytes"
-	"errors"
 	"fmt"
 	"io"
 	"io/fs"
@@ -69,8 +68,8 @@ func (f *memFileInfo) IsDir() bool {
 
 type memFile struct {
 	memFileInfo
-	data *bytes.Buffer // Contents of the file
-	r    *bytes.Reader
+	data *mem.Buffer // Contents of the file
+	r    io.ReadSeeker
 }
 
 func (f *memFile) Name() string {
@@ -380,9 +379,7 @@ func (fs *memFilesystem) ReadFile(path string) ([]byte, error) {
 	}
 
 	data := pool.Get()
-
-	data.Grow(file.data.Len())
-	data.Write(file.data.Bytes())
+	file.data.WriteTo(data)
 
 	return data.Bytes(), nil
 }
@@ -433,35 +430,6 @@ func (fs *memFilesystem) Symlink(oldname, newname string) error {
 	return nil
 }
 
-func copyToBufferFromReader(buf *bytes.Buffer, r io.Reader, _ int) (int64, error) {
-	chunkData := [128 * 1024]byte{}
-	chunk := chunkData[0:]
-
-	size := int64(0)
-
-	for {
-		n, err := r.Read(chunk)
-		if n != 0 {
-			buf.Write(chunk[:n])
-			size += int64(n)
-		}
-
-		if err != nil {
-			if errors.Is(err, io.EOF) {
-				return size, nil
-			}
-
-			return size, err
-		}
-
-		if n == 0 {
-			break
-		}
-	}
-
-	return size, nil
-}
-
 func (fs *memFilesystem) WriteFileReader(path string, r io.Reader, sizeHint int) (int64, bool, error) {
 	path = fs.cleanPath(path)
 
@@ -480,11 +448,7 @@ func (fs *memFilesystem) WriteFileReader(path string, r io.Reader, sizeHint int)
 		data: pool.Get(),
 	}
 
-	if sizeHint > 0 && sizeHint < 5*1024*1024 {
-		newFile.data.Grow(sizeHint)
-	}
-
-	size, err := copyToBufferFromReader(newFile.data, r, 8*1024)
+	size, err := newFile.data.ReadFrom(r)
 	if err != nil {
 		fs.logger.WithFields(log.Fields{
 			"path":           path,
@@ -558,10 +522,9 @@ func (fs *memFilesystem) AppendFileReader(path string, r io.Reader, sizeHint int
 		data: pool.Get(),
 	}
 
-	newFile.data.Grow(file.data.Len())
-	newFile.data.Write(file.data.Bytes())
+	file.data.WriteTo(newFile.data)
 
-	size, err := copyToBufferFromReader(newFile.data, r, 8*1024)
+	size, err := newFile.data.ReadFrom(r)
 	if err != nil {
 		fs.logger.WithFields(log.Fields{
 			"path":           path,
@@ -720,8 +683,7 @@ func (fs *memFilesystem) Copy(src, dst string) error {
 		data: pool.Get(),
 	}
 
-	dstFile.data.Grow(srcFile.data.Len())
-	dstFile.data.Write(srcFile.data.Bytes())
+	srcFile.data.WriteTo(dstFile.data)
 
 	f, replace := fs.storage.Store(dst, dstFile)
 
diff --git a/io/fs/mem_storage.go b/io/fs/mem_storage.go
index 8267660a..18b447ba 100644
--- a/io/fs/mem_storage.go
+++ b/io/fs/mem_storage.go
@@ -1,7 +1,6 @@
 package fs
 
 import (
-	"bytes"
 	"sync"
 
 	"github.com/dolthub/swiss"
@@ -122,33 +121,6 @@ func (m *mapStorage) Load(key string) (*memFile, bool) {
 	return v, ok
 }
 
-func (m *mapStorage) LoadAndCopy(key string) (*memFile, bool) {
-	m.lock.RLock()
-	defer m.lock.RUnlock()
-
-	v, ok := m.files[key]
-	if !ok {
-		return nil, false
-	}
-
-	f := &memFile{
-		memFileInfo: memFileInfo{
-			name:    v.name,
-			size:    v.size,
-			dir:     v.dir,
-			lastMod: v.lastMod,
-			linkTo:  v.linkTo,
-		},
-		r: nil,
-	}
-
-	if v.data != nil {
-		f.data = bytes.NewBuffer(v.data.Bytes())
-	}
-
-	return f, true
-}
-
 func (m *mapStorage) Has(key string) bool {
 	m.lock.RLock()
 	defer m.lock.RUnlock()
@@ -214,33 +186,6 @@ func (m *swissMapStorage) Load(key string) (*memFile, bool) {
 	return m.files.Get(key)
 }
 
-func (m *swissMapStorage) LoadAndCopy(key string) (*memFile, bool) {
-	token := m.lock.RLock()
-	defer m.lock.RUnlock(token)
-
-	v, ok := m.files.Get(key)
-	if !ok {
-		return nil, false
-	}
-
-	f := &memFile{
-		memFileInfo: memFileInfo{
-			name:    v.name,
-			size:    v.size,
-			dir:     v.dir,
-			lastMod: v.lastMod,
-			linkTo:  v.linkTo,
-		},
-		r: nil,
-	}
-
-	if v.data != nil {
-		f.data = bytes.NewBuffer(v.data.Bytes())
-	}
-
-	return f, true
-}
-
 func (m *swissMapStorage) Has(key string) bool {
 	token := m.lock.RLock()
 	defer m.lock.RUnlock(token)
diff --git a/io/fs/mem_test.go b/io/fs/mem_test.go
index 63a8f0f3..be179d5c 100644
--- a/io/fs/mem_test.go
+++ b/io/fs/mem_test.go
@@ -1,7 +1,6 @@
 package fs
 
 import (
-	"bytes"
 	"context"
 	"fmt"
 	"io"
@@ -231,36 +230,3 @@ func benchmarkMemReadFileWhileWriting(b *testing.B, fs Filesystem) {
 
 	readerWg.Wait()
 }
-
-func BenchmarkBufferReadFrom(b *testing.B) {
-	data := []byte(rand.StringAlphanumeric(1024 * 1024))
-
-	for i := 0; i < b.N; i++ {
-		r := bytes.NewReader(data)
-		buf := &bytes.Buffer{}
-		buf.ReadFrom(r)
-	}
-}
-
-func TestBufferReadChunks(t *testing.T) {
-	data := []byte(rand.StringAlphanumeric(1024 * 1024))
-
-	r := bytes.NewReader(data)
-	buf := &bytes.Buffer{}
-
-	copyToBufferFromReader(buf, r, 32*1024)
-
-	res := bytes.Compare(data, buf.Bytes())
-	require.Equal(t, 0, res)
-}
-
-func BenchmarkBufferReadChunks(b *testing.B) {
-	data := []byte(rand.StringAlphanumeric(1024 * 1024))
-
-	for i := 0; i < b.N; i++ {
-		r := bytes.NewReader(data)
-		buf := &bytes.Buffer{}
-
-		copyToBufferFromReader(buf, r, 32*1024)
-	}
-}
diff --git a/io/fs/s3.go b/io/fs/s3.go
index c1659aef..316fd7ca 100644
--- a/io/fs/s3.go
+++ b/io/fs/s3.go
@@ -378,7 +378,7 @@ func (fs *s3Filesystem) AppendFileReader(path string, r io.Reader, sizeHint int)
 	buffer.ReadFrom(object)
 	buffer.ReadFrom(r)
 
-	size, _, err := fs.write(path, buffer)
+	size, _, err := fs.write(path, buffer.Reader())
 	return size, err
 }
 
diff --git a/io/fs/sized.go b/io/fs/sized.go
index cfa159eb..bd2c3fc6 100644
--- a/io/fs/sized.go
+++ b/io/fs/sized.go
@@ -71,8 +71,10 @@ func (r *sizedFilesystem) WriteFileReader(path string, rd io.Reader, sizeHint in
 		return r.Filesystem.WriteFileReader(path, rd, sizeHint)
 	}
 
-	data := bytes.Buffer{}
-	size, err := copyToBufferFromReader(&data, rd, 8*1024)
+	data := pool.Get()
+	defer pool.Put(data)
+
+	size, err := data.ReadFrom(rd)
 	if err != nil {
 		return -1, false, err
 	}
@@ -97,7 +99,7 @@ func (r *sizedFilesystem) WriteFileReader(path string, rd io.Reader, sizeHint in
 		}
 	}
 
-	return r.Filesystem.WriteFileReader(path, &data, int(size))
+	return r.Filesystem.WriteFileReader(path, data.Reader(), int(size))
 }
 
 func (r *sizedFilesystem) WriteFile(path string, data []byte) (int64, bool, error) {
@@ -141,8 +143,10 @@ func (r *sizedFilesystem) AppendFileReader(path string, rd io.Reader, sizeHint i
 		return r.Filesystem.AppendFileReader(path, rd, sizeHint)
 	}
 
-	data := bytes.Buffer{}
-	size, err := copyToBufferFromReader(&data, rd, 8*1024)
+	data := pool.Get()
+	defer pool.Put(data)
+
+	size, err := data.ReadFrom(rd)
 	if err != nil {
 		return -1, err
 	}
@@ -162,7 +166,7 @@ func (r *sizedFilesystem) AppendFileReader(path string, rd io.Reader, sizeHint i
 		}
 	}
 
-	return r.Filesystem.AppendFileReader(path, &data, int(size))
+	return r.Filesystem.AppendFileReader(path, data.Reader(), int(size))
 }
 
 func (r *sizedFilesystem) Purge(size int64) int64 {
diff --git a/mem/buffer.go b/mem/buffer.go
index af676c10..e3a39fe9 100644
--- a/mem/buffer.go
+++ b/mem/buffer.go
@@ -2,46 +2,90 @@ package mem
 
 import (
 	"bytes"
-	"sync"
+	"errors"
+	"io"
 )
 
-type BufferPool struct {
-	pool sync.Pool
+type Buffer struct {
+	data bytes.Buffer
 }
 
-func NewBufferPool() *BufferPool {
-	p := &BufferPool{
-		pool: sync.Pool{
-			New: func() any {
-				return &bytes.Buffer{}
-			},
-		},
+// Len returns the length of the buffer.
+func (b *Buffer) Len() int {
+	return b.data.Len()
+}
+
+// Bytes returns the buffer, but keeps ownership.
+func (b *Buffer) Bytes() []byte {
+	return b.data.Bytes()
+}
+
+// WriteTo writes the bytes to the writer.
+func (b *Buffer) WriteTo(w io.Writer) (int64, error) {
+	n, err := w.Write(b.data.Bytes())
+	return int64(n), err
+}
+
+// Reset empties the buffer and keeps it's capacity.
+func (b *Buffer) Reset() {
+	b.data.Reset()
+}
+
+// Write appends to the buffer.
+func (b *Buffer) Write(p []byte) (int, error) {
+	return b.data.Write(p)
+}
+
+// ReadFrom reads from the reader and appends to the buffer.
+func (b *Buffer) ReadFrom(r io.Reader) (int64, error) {
+	if br, ok := r.(*bytes.Reader); ok {
+		b.data.Grow(br.Len())
 	}
 
-	return p
+	chunkData := [128 * 1024]byte{}
+	chunk := chunkData[0:]
+
+	size := int64(0)
+
+	for {
+		n, err := r.Read(chunk)
+		if n != 0 {
+			b.data.Write(chunk[:n])
+			size += int64(n)
+		}
+
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				return size, nil
+			}
+
+			return size, err
+		}
+
+		if n == 0 {
+			break
+		}
+	}
+
+	return size, nil
 }
 
-func (p *BufferPool) Get() *bytes.Buffer {
-	buf := p.pool.Get().(*bytes.Buffer)
-	buf.Reset()
-
-	return buf
+// WriteByte appends a byte to the buffer.
+func (b *Buffer) WriteByte(c byte) error {
+	return b.data.WriteByte(c)
 }
 
-func (p *BufferPool) Put(buf *bytes.Buffer) {
-	p.pool.Put(buf)
+// WriteString appends a string to the buffer.
+func (b *Buffer) WriteString(s string) (n int, err error) {
+	return b.data.WriteString(s)
 }
 
-var DefaultBufferPool *BufferPool
-
-func init() {
-	DefaultBufferPool = NewBufferPool()
+// Reader returns a bytes.Reader based on the data in the buffer.
+func (b *Buffer) Reader() *bytes.Reader {
+	return bytes.NewReader(b.Bytes())
 }
 
-func Get() *bytes.Buffer {
-	return DefaultBufferPool.Get()
-}
-
-func Put(buf *bytes.Buffer) {
-	DefaultBufferPool.Put(buf)
+// String returns the data in the buffer a string.
+func (b *Buffer) String() string {
+	return b.data.String()
 }
diff --git a/mem/buffer_test.go b/mem/buffer_test.go
new file mode 100644
index 00000000..a19c1a72
--- /dev/null
+++ b/mem/buffer_test.go
@@ -0,0 +1,47 @@
+package mem
+
+import (
+	"bytes"
+	"io"
+	"testing"
+
+	"github.com/datarhei/core/v16/math/rand"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestBufferReadChunks(t *testing.T) {
+	data := []byte(rand.StringAlphanumeric(1024 * 1024))
+
+	r := bytes.NewReader(data)
+	buf := &Buffer{}
+
+	buf.ReadFrom(r)
+
+	res := bytes.Compare(data, buf.Bytes())
+	require.Equal(t, 0, res)
+}
+
+func BenchmarkBufferReadFrom(b *testing.B) {
+	data := []byte(rand.StringAlphanumeric(1024 * 1024))
+
+	r := bytes.NewReader(data)
+
+	for i := 0; i < b.N; i++ {
+		r.Seek(0, io.SeekStart)
+		buf := &Buffer{}
+		buf.ReadFrom(r)
+	}
+}
+
+func BenchmarkBytesBufferReadFrom(b *testing.B) {
+	data := []byte(rand.StringAlphanumeric(1024 * 1024))
+
+	r := bytes.NewReader(data)
+
+	for i := 0; i < b.N; i++ {
+		r.Seek(0, io.SeekStart)
+		buf := &bytes.Buffer{}
+		buf.ReadFrom(r)
+	}
+}
diff --git a/mem/pool.go b/mem/pool.go
new file mode 100644
index 00000000..641791f3
--- /dev/null
+++ b/mem/pool.go
@@ -0,0 +1,46 @@
+package mem
+
+import (
+	"sync"
+)
+
+type BufferPool struct {
+	pool sync.Pool
+}
+
+func NewBufferPool() *BufferPool {
+	p := &BufferPool{
+		pool: sync.Pool{
+			New: func() any {
+				return &Buffer{}
+			},
+		},
+	}
+
+	return p
+}
+
+func (p *BufferPool) Get() *Buffer {
+	buf := p.pool.Get().(*Buffer)
+	buf.Reset()
+
+	return buf
+}
+
+func (p *BufferPool) Put(buf *Buffer) {
+	p.pool.Put(buf)
+}
+
+var DefaultBufferPool *BufferPool
+
+func init() {
+	DefaultBufferPool = NewBufferPool()
+}
+
+func Get() *Buffer {
+	return DefaultBufferPool.Get()
+}
+
+func Put(buf *Buffer) {
+	DefaultBufferPool.Put(buf)
+}
diff --git a/service/api/api.go b/service/api/api.go
index bae2cbb1..b34f589a 100644
--- a/service/api/api.go
+++ b/service/api/api.go
@@ -243,7 +243,7 @@ func (a *api) Monitor(id string, monitordata MonitorData) (MonitorResponse, erro
 		}
 	*/
 
-	response, err := a.callWithRetry(http.MethodPut, "api/v1/core/monitor/"+id, data)
+	response, err := a.callWithRetry(http.MethodPut, "api/v1/core/monitor/"+id, data.Reader())
 	if err != nil {
 		return MonitorResponse{}, fmt.Errorf("error sending request: %w", err)
 	}