Mercurial > hg > graal-jvmci-8
diff src/share/vm/memory/metaspaceShared.cpp @ 6882:716c64bda5ba
7199092: NMT: NMT needs to deal overlapped virtual memory ranges
Summary: Enhanced virtual memory tracking to track committed regions as well as reserved regions, so NMT now can generate virtual memory map.
Reviewed-by: acorn, coleenp
author | zgu |
---|---|
date | Fri, 19 Oct 2012 21:40:07 -0400 |
parents | fb19af007ffc |
children | 070d523b96a7 |
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--- a/src/share/vm/memory/metaspaceShared.cpp Thu Oct 18 13:09:47 2012 -0400 +++ b/src/share/vm/memory/metaspaceShared.cpp Fri Oct 19 21:40:07 2012 -0400 @@ -663,8 +663,8 @@ if (_ro_base == NULL || _rw_base == NULL) { return false; } else { - return ((p > _ro_base && p < (_ro_base + SharedReadOnlySize)) || - (p > _rw_base && p < (_rw_base + SharedReadWriteSize))); + return ((p >= _ro_base && p < (_ro_base + SharedReadOnlySize)) || + (p >= _rw_base && p < (_rw_base + SharedReadWriteSize))); } } @@ -693,14 +693,6 @@ ReservedSpace shared_rs = mapinfo->reserve_shared_memory(); if (!shared_rs.is_reserved()) return false; - // Split reserved memory into pieces (windows needs this) - ReservedSpace ro_rs = shared_rs.first_part(SharedReadOnlySize); - ReservedSpace tmp_rs1 = shared_rs.last_part(SharedReadOnlySize); - ReservedSpace rw_rs = tmp_rs1.first_part(SharedReadWriteSize); - ReservedSpace tmp_rs2 = tmp_rs1.last_part(SharedReadWriteSize); - ReservedSpace md_rs = tmp_rs2.first_part(SharedMiscDataSize); - ReservedSpace mc_rs = tmp_rs2.last_part(SharedMiscDataSize); - // Map each shared region if ((_ro_base = mapinfo->map_region(ro)) != NULL && (_rw_base = mapinfo->map_region(rw)) != NULL &&