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-rw-r--r--crates/profile/src/memory_usage.rs16
1 files changed, 16 insertions, 0 deletions
diff --git a/crates/profile/src/memory_usage.rs b/crates/profile/src/memory_usage.rs
index 2917ded60..6ef58c9c1 100644
--- a/crates/profile/src/memory_usage.rs
+++ b/crates/profile/src/memory_usage.rs
@@ -35,6 +35,22 @@ impl MemoryUsage {
35 // Note: This is incredibly slow. 35 // Note: This is incredibly slow.
36 let alloc = unsafe { libc::mallinfo() }.uordblks as isize; 36 let alloc = unsafe { libc::mallinfo() }.uordblks as isize;
37 MemoryUsage { allocated: Bytes(alloc) } 37 MemoryUsage { allocated: Bytes(alloc) }
38 } else if #[cfg(windows)] {
39 // There doesn't seem to be an API for determining heap usage, so we try to
40 // approximate that by using the Commit Charge value.
41
42 use winapi::um::processthreadsapi::*;
43 use winapi::um::psapi::*;
44 use std::mem::{MaybeUninit, size_of};
45
46 let proc = unsafe { GetCurrentProcess() };
47 let mut mem_counters = MaybeUninit::uninit();
48 let cb = size_of::<PROCESS_MEMORY_COUNTERS>();
49 let ret = unsafe { GetProcessMemoryInfo(proc, mem_counters.as_mut_ptr(), cb as u32) };
50 assert!(ret != 0);
51
52 let usage = unsafe { mem_counters.assume_init().PagefileUsage };
53 MemoryUsage { allocated: Bytes(usage as isize) }
38 } else { 54 } else {
39 MemoryUsage { allocated: Bytes(0) } 55 MemoryUsage { allocated: Bytes(0) }
40 } 56 }