https://issues.dlang.org/show_bug.cgi?id=19847
Issue ID: 19847
Summary: no GC memory above 4GB reported with
--DRT-gcopt=profile:1
Product: D
Version: D2
Hardware: x86_64
OS: All
Status: NEW
Severity: minor
Priority: P1
Component: druntime
Assignee: [email protected]
Reporter: [email protected]
Build this program with -m64:
void main()
{
ubyte[][] data;
foreach(i; 0..10_000)
data ~= new ubyte[1 << 20];
}
and run it with "--DRT:gcopt=profile:1". It reports
Number of collections: 14
Total GC prep time: 6 milliseconds
Total mark time: 12 milliseconds
Total sweep time: 29 milliseconds
Max Pause Time: 11 milliseconds
Grand total GC time: 47 milliseconds
GC summary: 4076 MB, 14 GC 47 ms, Pauses 18 ms < 11 ms
even though it allocates and retsins 10 GB of memory.
--
