diff --git a/src/alsa/enumerate.rs b/src/alsa/enumerate.rs
index b087acb..6e590ac 100644
--- a/src/alsa/enumerate.rs
+++ b/src/alsa/enumerate.rs
@@ -18,6 +18,7 @@ unsafe impl Send for EndpointsIterator {}
 unsafe impl Sync for EndpointsIterator {}
 
 impl Drop for EndpointsIterator {
+    #[inline]
     fn drop(&mut self) {
         unsafe {
             alsa::snd_device_name_free_hint(self.global_list as *mut _);
@@ -72,6 +73,7 @@ impl Iterator for EndpointsIterator {
     }
 }
 
+#[inline]
 pub fn get_default_endpoint() -> Option<Endpoint> {
     // TODO: do in a different way?
     Some(Endpoint("default".to_owned()))
diff --git a/src/alsa/mod.rs b/src/alsa/mod.rs
index 11bb99c..b184fe3 100644
--- a/src/alsa/mod.rs
+++ b/src/alsa/mod.rs
@@ -72,14 +72,17 @@ impl Voice {
         }
     }
 
+    #[inline]
     pub fn get_channels(&self) -> ::ChannelsCount {
         self.num_channels
     }
 
+    #[inline]
     pub fn get_samples_rate(&self) -> ::SamplesRate {
         ::SamplesRate(44100)
     }
 
+    #[inline]
     pub fn get_samples_format(&self) -> ::SampleFormat {
         ::SampleFormat::I16
     }
@@ -99,11 +102,13 @@ impl Voice {
         }
     }
 
+    #[inline]
     pub fn play(&mut self) {
         // already playing
         //unimplemented!()
     }
 
+    #[inline]
     pub fn pause(&mut self) {
         unimplemented!()
     }
@@ -113,6 +118,7 @@ unsafe impl Send for Voice {}
 unsafe impl Sync for Voice {}
 
 impl Drop for Voice {
+    #[inline]
     fn drop(&mut self) {
         unsafe {
             alsa::snd_pcm_close(*self.channel.lock().unwrap());
@@ -121,10 +127,12 @@ impl Drop for Voice {
 }
 
 impl<'a, T> Buffer<'a, T> {
+    #[inline]
     pub fn get_buffer<'b>(&'b mut self) -> &'b mut [T] {
         &mut self.buffer
     }
 
+    #[inline]
     pub fn len(&self) -> usize {
         self.buffer.len()
     }
@@ -146,6 +154,7 @@ impl<'a, T> Buffer<'a, T> {
     }
 }
 
+#[inline]
 fn check_errors(err: libc::c_int) -> Result<(), String> {
     use std::ffi;
 
diff --git a/src/coreaudio/mod.rs b/src/coreaudio/mod.rs
index 131737d..bbd1ce2 100644
--- a/src/coreaudio/mod.rs
+++ b/src/coreaudio/mod.rs
@@ -24,20 +24,24 @@ pub struct Buffer<'a, T: 'a> {
 
 impl Voice {
 
+    #[inline]
     pub fn new() -> Voice {
         new_voice().unwrap()
     }
 
+    #[inline]
     pub fn get_channels(&self) -> ::ChannelsCount {
         // TODO: use AudioUnitGetProperty...
         2
     }
 
+    #[inline]
     pub fn get_samples_rate(&self) -> ::SamplesRate {
         // TODO: use AudioUnitGetProperty...
         ::SamplesRate(44100)
     }
 
+    #[inline]
     pub fn get_samples_format(&self) -> ::SampleFormat {
         // TODO: use AudioUnitGetProperty...
         ::SampleFormat::F32
@@ -58,16 +62,19 @@ impl Voice {
         }
     }
 
+    #[inline]
     pub fn play(&mut self) {
         // TODO
     }
 
+    #[inline]
     pub fn pause(&mut self) {
         // TODO
     }
 }
 
 impl<'a, T> Buffer<'a, T> {
+    #[inline]
     pub fn get_buffer<'b>(&'b mut self) -> &'b mut [T] {
         &mut self.samples[..]
     }
diff --git a/src/lib.rs b/src/lib.rs
index 7fae8d8..5d8d2d4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -82,11 +82,13 @@ impl Iterator for EndpointsIterator {
 }
 
 /// Return an iterator to the list of formats that are supported by the system.
+#[inline]
 pub fn get_endpoints_list() -> EndpointsIterator {
     EndpointsIterator(Default::default())
 }
 
 /// Return the default endpoint, or `None` if no device is available.
+#[inline]
 pub fn get_default_endpoint() -> Option<Endpoint> {
     cpal_impl::get_default_endpoint().map(Endpoint)
 }
@@ -97,6 +99,7 @@ pub struct Endpoint(cpal_impl::Endpoint);
 
 impl Endpoint {
     /// Returns an iterator that produces the list of formats that are supported by the backend.
+    #[inline]
     pub fn get_supported_formats_list(&self) -> Result<SupportedFormatsIterator,
                                                        FormatsEnumerationError>
     {
@@ -183,6 +186,7 @@ pub enum UnknownTypeBuffer<'a> {
 
 impl<'a> UnknownTypeBuffer<'a> {
     /// Returns the length of the buffer in number of samples.
+    #[inline]
     pub fn len(&self) -> usize {
         match self {
             &UnknownTypeBuffer::U16(ref buf) => buf.target.as_ref().unwrap().len(),
@@ -201,12 +205,14 @@ pub enum FormatsEnumerationError {
 }
 
 impl fmt::Display for FormatsEnumerationError {
+    #[inline]
     fn fmt(&self, fmt: &mut fmt::Formatter) -> Result<(), fmt::Error> {
         write!(fmt, "{}", self.description())
     }
 }
 
 impl Error for FormatsEnumerationError {
+    #[inline]
     fn description(&self) -> &str {
         match self {
             &FormatsEnumerationError::DeviceNotAvailable => {
@@ -228,12 +234,14 @@ pub enum CreationError {
 }
 
 impl fmt::Display for CreationError {
+    #[inline]
     fn fmt(&self, fmt: &mut fmt::Formatter) -> Result<(), fmt::Error> {
         write!(fmt, "{}", self.description())
     }
 }
 
 impl Error for CreationError {
+    #[inline]
     fn description(&self) -> &str {
         match self {
             &CreationError::DeviceNotAvailable => {
@@ -314,6 +322,7 @@ impl Voice {
     ///
     /// Panics if `max_samples` is 0.
     ///
+    #[inline]
     pub fn append_data(&mut self, max_samples: usize) -> UnknownTypeBuffer {
         assert!(max_samples != 0);
 
diff --git a/src/null/mod.rs b/src/null/mod.rs
index 6840ea2..1b0c0f3 100644
--- a/src/null/mod.rs
+++ b/src/null/mod.rs
@@ -12,11 +12,13 @@ pub struct EndpointsIterator;
 impl Iterator for EndpointsIterator {
     type Item = Endpoint;
 
+    #[inline]
     fn next(&mut self) -> Option<Endpoint> {
         None
     }
 }
 
+#[inline]
 pub fn get_default_endpoint() -> Option<Endpoint> {
     None
 }
@@ -25,6 +27,7 @@ pub fn get_default_endpoint() -> Option<Endpoint> {
 pub struct Endpoint;
 
 impl Endpoint {
+    #[inline]
     pub fn get_supported_formats_list(&self)
             -> Result<SupportedFormatsIterator, FormatsEnumerationError>
     {
@@ -37,6 +40,7 @@ pub struct SupportedFormatsIterator;
 impl Iterator for SupportedFormatsIterator {
     type Item = Format;
 
+    #[inline]
     fn next(&mut self) -> Option<Format> {
         None
     }
@@ -45,29 +49,36 @@ impl Iterator for SupportedFormatsIterator {
 pub struct Voice;
 
 impl Voice {
+    #[inline]
     pub fn new(_: &Endpoint, _: &Format) -> Result<Voice, CreationError> {
         Err(CreationError::DeviceNotAvailable)
     }
 
+    #[inline]
     pub fn get_channels(&self) -> ::ChannelsCount {
         unreachable!()
     }
 
+    #[inline]
     pub fn get_samples_rate(&self) -> ::SamplesRate {
         unreachable!()
     }
 
+    #[inline]
     pub fn get_samples_format(&self) -> ::SampleFormat {
         unreachable!()
     }
 
+    #[inline]
     pub fn append_data<'a, T>(&'a mut self, _: usize) -> Buffer<'a, T> {
         unreachable!()
     }
 
+    #[inline]
     pub fn play(&mut self) {
     }
 
+    #[inline]
     pub fn pause(&mut self) {
     }
 }
@@ -77,14 +88,17 @@ pub struct Buffer<'a, T: 'a> {
 }
 
 impl<'a, T> Buffer<'a, T> {
+    #[inline]
     pub fn get_buffer<'b>(&'b mut self) -> &'b mut [T] {
         unreachable!()
     }
 
+    #[inline]
     pub fn len(&self) -> usize {
         0
     }
 
+    #[inline]
     pub fn finish(self) {
     }
 }
diff --git a/src/wasapi/com.rs b/src/wasapi/com.rs
index 92a6f31..442cd39 100644
--- a/src/wasapi/com.rs
+++ b/src/wasapi/com.rs
@@ -21,12 +21,14 @@ thread_local!(static COM_INITIALIZED: ComInitialized = {
 struct ComInitialized(*mut ());
 
 impl Drop for ComInitialized {
+    #[inline]
     fn drop(&mut self) {
         unsafe { ole32::CoUninitialize() };
     }
 }
 
 /// Ensures that COM is initialized in this thread.
+#[inline]
 pub fn com_initialized() {
     COM_INITIALIZED.with(|_| {});
 }
diff --git a/src/wasapi/enumerate.rs b/src/wasapi/enumerate.rs
index 0c5e966..d6e6ef5 100644
--- a/src/wasapi/enumerate.rs
+++ b/src/wasapi/enumerate.rs
@@ -37,6 +37,7 @@ unsafe impl Send for Enumerator {}
 unsafe impl Sync for Enumerator {}
 
 impl Drop for Enumerator {
+    #[inline]
     fn drop(&mut self) {
         unsafe {
             (*self.0).Release();
@@ -55,6 +56,7 @@ unsafe impl Send for EndpointsIterator {}
 unsafe impl Sync for EndpointsIterator {}
 
 impl Drop for EndpointsIterator {
+    #[inline]
     fn drop(&mut self) {
         unsafe {
             (*self.collection).Release();
diff --git a/src/wasapi/mod.rs b/src/wasapi/mod.rs
index 4d5ae68..f659d29 100644
--- a/src/wasapi/mod.rs
+++ b/src/wasapi/mod.rs
@@ -22,6 +22,7 @@ mod com;
 mod enumerate;
 mod voice;
 
+#[inline]
 fn check_result(result: winapi::HRESULT) -> Result<(), IoError> {
     if result < 0 {
         Err(IoError::from_raw_os_error(result))
@@ -82,6 +83,7 @@ impl Endpoint {
     }
 
     /// Returns an uninitialized `IAudioClient`.
+    #[inline]
     fn build_audioclient(&self) -> Result<*mut winapi::IAudioClient, IoError> {
         let mut lock = try!(self.ensure_future_audio_client());
         let client = lock.unwrap().0;
@@ -183,6 +185,7 @@ impl Endpoint {
 }
 
 impl PartialEq for Endpoint {
+    #[inline]
     fn eq(&self, other: &Endpoint) -> bool {
         self.device == other.device
     }
@@ -191,6 +194,7 @@ impl PartialEq for Endpoint {
 impl Eq for Endpoint {}
 
 impl Clone for Endpoint {
+    #[inline]
     fn clone(&self) -> Endpoint {
         unsafe { (*self.device).AddRef(); }
 
@@ -202,6 +206,7 @@ impl Clone for Endpoint {
 }
 
 impl Drop for Endpoint {
+    #[inline]
     fn drop(&mut self) {
         unsafe { (*self.device).Release(); }
 
diff --git a/src/wasapi/voice.rs b/src/wasapi/voice.rs
index 7b9f205..f5083e6 100644
--- a/src/wasapi/voice.rs
+++ b/src/wasapi/voice.rs
@@ -211,14 +211,17 @@ impl Voice {
         }
     }
 
+    #[inline]
     pub fn get_channels(&self) -> ::ChannelsCount {
         self.num_channels as ::ChannelsCount
     }
 
+    #[inline]
     pub fn get_samples_rate(&self) -> ::SamplesRate {
         ::SamplesRate(self.samples_per_second as u32)
     }
 
+    #[inline]
     pub fn get_samples_format(&self) -> ::SampleFormat {
         match self.bits_per_sample {
             16 => ::SampleFormat::I16,
@@ -275,6 +278,7 @@ impl Voice {
         }
     }
 
+    #[inline]
     pub fn play(&mut self) {
         if !self.playing {
             unsafe {
@@ -286,6 +290,7 @@ impl Voice {
         self.playing = true;
     }
 
+    #[inline]
     pub fn pause(&mut self) {
         if self.playing {
             unsafe {
@@ -299,6 +304,7 @@ impl Voice {
 }
 
 impl Drop for Voice {
+    #[inline]
     fn drop(&mut self) {
         unsafe {
             (*self.render_client).Release();
@@ -316,16 +322,19 @@ pub struct Buffer<'a, T: 'a> {
 }
 
 impl<'a, T> Buffer<'a, T> {
+    #[inline]
     pub fn get_buffer<'b>(&'b mut self) -> &'b mut [T] {
         unsafe {
             slice::from_raw_parts_mut(self.buffer_data, self.buffer_len)
         }
     }
 
+    #[inline]
     pub fn len(&self) -> usize {
         self.buffer_len
     }
 
+    #[inline]
     pub fn finish(self) {
         // releasing buffer
         unsafe {