Index: sysinfo/benches/basic.rs
===================================================================
--- sysinfo.orig/benches/basic.rs
+++ sysinfo/benches/basic.rs
@@ -63,6 +63,7 @@ fn bench_refresh_process(b: &mut test::B
 }
 
 #[bench]
+#[cfg(feature = "disk")]
 fn bench_refresh_disk(b: &mut test::Bencher) {
     let mut disks = sysinfo::Disks::new_with_refreshed_list();
 
@@ -76,6 +77,7 @@ fn bench_refresh_disk(b: &mut test::Benc
 }
 
 #[bench]
+#[cfg(feature = "disk")]
 fn bench_refresh_disks(b: &mut test::Bencher) {
     let mut disks = sysinfo::Disks::new_with_refreshed_list();
 
@@ -126,6 +128,7 @@ fn bench_refresh_components(b: &mut test
 }
 
 #[bench]
+#[cfg(feature = "user")]
 fn bench_refresh_users_list(b: &mut test::Bencher) {
     let mut users = sysinfo::Users::new_with_refreshed_list();
 
Index: sysinfo/src/lib.rs
===================================================================
--- sysinfo.orig/src/lib.rs
+++ sysinfo/src/lib.rs
@@ -368,43 +368,79 @@ mod test {
         trait HasSendAndSync: Send + Sync {}
 
         // Structs
+        #[cfg(feature = "system")]
         impl HasSendAndSync for CGroupLimits {}
+        #[cfg(feature = "component")]
         impl HasSendAndSync for Component {}
+        #[cfg(feature = "component")]
         impl HasSendAndSync for Components {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for Cpu {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for CpuRefreshKind {}
+        #[cfg(feature = "disk")]
         impl HasSendAndSync for Disk {}
+        #[cfg(feature = "disk")]
         impl HasSendAndSync for Disks {}
+        #[cfg(feature = "disk")]
         impl HasSendAndSync for DiskRefreshKind {}
+        #[cfg(any(feature = "system", feature = "disk"))]
         impl HasSendAndSync for DiskUsage {}
+        #[cfg(feature = "user")]
         impl HasSendAndSync for Gid {}
+        #[cfg(feature = "user")]
         impl HasSendAndSync for Group {}
+        #[cfg(feature = "user")]
         impl HasSendAndSync for Groups {}
+        #[cfg(feature = "network")]
         impl HasSendAndSync for IpNetwork {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for LoadAvg {}
+        #[cfg(feature = "network")]
         impl HasSendAndSync for MacAddr {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for MemoryRefreshKind {}
+        #[cfg(feature = "network")]
         impl HasSendAndSync for NetworkData {}
+        #[cfg(feature = "network")]
         impl HasSendAndSync for Networks {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for Pid {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for Process {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for ProcessRefreshKind {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for Product {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for RefreshKind {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for System {}
+        #[cfg(feature = "user")]
         impl HasSendAndSync for Uid {}
+        #[cfg(feature = "user")]
         impl HasSendAndSync for User {}
+        #[cfg(feature = "user")]
         impl HasSendAndSync for Users {}
 
         // Enums
+        #[cfg(feature = "disk")]
         impl HasSendAndSync for DiskKind {}
+        #[cfg(feature = "network")]
         impl HasSendAndSync for IpNetworkFromStrError {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for KillError {}
+        #[cfg(feature = "network")]
         impl HasSendAndSync for MacAddrFromStrError {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for ProcessStatus {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for ProcessesToUpdate<'_> {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for Signal {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for ThreadKind {}
+        #[cfg(feature = "system")]
         impl HasSendAndSync for UpdateKind {}
     }
 }
Index: sysinfo/src/serde.rs
===================================================================
--- sysinfo.orig/src/serde.rs
+++ sysinfo/src/serde.rs
@@ -504,6 +504,7 @@ impl Serialize for crate::Uid {
 #[cfg(test)]
 mod tests {
     #[test]
+    #[cfg(feature = "system")]
     fn test_serde_process_name() {
         if !crate::IS_SUPPORTED_SYSTEM {
             return;