3 files changed, 22 insertions, 20 deletions

diff --git a/crates/ra_prof/Cargo.toml b/crates/ra_prof/Cargo.toml
index 7db4498c3..bb241258c 100644
--- a/crates/ra_prof/Cargo.toml
+++ b/crates/ra_prof/Cargo.toml
@@ -1,17 +1,19 @@
-[package]
-edition = "2018"
-name = "ra_prof"
-version = "0.1.0"
-authors = ["rust-analyzer developers"]
-publish = false
-
-[dependencies]
-once_cell = "1.0.1"
-itertools = "0.8.0"
-backtrace = "0.3.28"
-jemallocator = { version = "0.3.2", optional = true }
-jemalloc-ctl = { version = "0.3.2", optional = true }
-
-[features]
-jemalloc = [ "jemallocator", "jemalloc-ctl" ]
-cpu_profiler = []
+[package]

+edition = "2018"

+name = "ra_prof"

+version = "0.1.0"

+authors = ["rust-analyzer developers"]

+publish = false

+

+[dependencies]

+once_cell = "1.0.1"

+itertools = "0.8.0"

+backtrace = "0.3.28"

+

+[target.'cfg(not(target_env = "msvc"))'.dependencies]

+jemallocator = { version = "0.3.2", optional = true }

+jemalloc-ctl = { version = "0.3.2", optional = true }

+

+[features]

+jemalloc = [ "jemallocator", "jemalloc-ctl" ]

+cpu_profiler = []

diff --git a/crates/ra_prof/src/lib.rs b/crates/ra_prof/src/lib.rs
index e5385f51b..845b2221c 100644
--- a/crates/ra_prof/src/lib.rs
+++ b/crates/ra_prof/src/lib.rs
@@ -24,7 +24,7 @@ pub use crate::memory_usage::{Bytes, MemoryUsage};
 
 // We use jemalloc mainly to get heap usage statistics, actual performance
 // difference is not measures.
-#[cfg(feature = "jemalloc")]
+#[cfg(all(feature = "jemalloc", not(target_env = "msvc")))]
 #[global_allocator]
 static ALLOC: jemallocator::Jemalloc = jemallocator::Jemalloc;
 
diff --git a/crates/ra_prof/src/memory_usage.rs b/crates/ra_prof/src/memory_usage.rs
index ad005ea14..9768f656c 100644
--- a/crates/ra_prof/src/memory_usage.rs
+++ b/crates/ra_prof/src/memory_usage.rs
@@ -8,7 +8,7 @@ pub struct MemoryUsage {
 }
 
 impl MemoryUsage {
-    #[cfg(feature = "jemalloc")]
+    #[cfg(all(feature = "jemalloc", not(target_env = "msvc")))]
     pub fn current() -> MemoryUsage {
         jemalloc_ctl::epoch::advance().unwrap();
         MemoryUsage {
@@ -17,7 +17,7 @@ impl MemoryUsage {
         }
     }
 
-    #[cfg(not(feature = "jemalloc"))]
+    #[cfg(any(not(feature = "jemalloc"), target_env = "msvc"))]
     pub fn current() -> MemoryUsage {
         MemoryUsage { allocated: Bytes(0), resident: Bytes(0) }
     }