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Set count_live_bytes_in_gc option when print_fragmentation is enabled #282

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Set count_live_bytes_in_gc option when print_fragmentation is enabled #282

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7 changes: 6 additions & 1 deletion mmtk/src/api.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,11 @@ pub extern "C" fn mmtk_gc_init(
let success = builder.options.threads.set(n_gcthreads);
assert!(success, "Failed to set GC threads to {}", n_gcthreads);
}

if cfg!(feature = "print_fragmentation") {
let success = builder.options.count_live_bytes_in_gc.set(true);
assert!(success, "Failed to enable live byte counting in GC");
}
}

// Make sure that we haven't initialized MMTk (by accident) yet
Expand Down Expand Up @@ -643,7 +648,7 @@ pub extern "C" fn get_mmtk_version() -> *const c_char {
pub extern "C" fn print_fragmentation() {
let map = memory_manager::live_bytes_in_last_gc(&SINGLETON);
for (space, stats) in map {
println!(
eprintln!(
"Utilization in space {:?}: {} live bytes, {} total bytes, {:.2} %",
space,
stats.live_bytes,
Expand Down