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comparison src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp @ 20256:b0b97602393a

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8033923: Use BufferingOopClosure for G1 code root scanning Reviewed-by: mgerdin, brutisso
author stefank
date Mon, 10 Feb 2014 12:58:09 +0100
parents 9fec19bb0659
children 7426d8d76305
comparison
equal deleted inserted replaced
20255:02e61cf08ab3 20256:b0b97602393a
4863 double ext_roots_start = os::elapsedTime(); 4863 double ext_roots_start = os::elapsedTime();
4864 double closure_app_time_sec = 0.0; 4864 double closure_app_time_sec = 0.0;
4865 4865
4866 BufferingOopClosure buf_scan_non_heap_roots(scan_non_heap_roots); 4866 BufferingOopClosure buf_scan_non_heap_roots(scan_non_heap_roots);
4867 4867
4868 assert(so & SO_AllCodeCache || scan_rs != NULL, "must scan code roots somehow"); 4868 CodeBlobToOopClosure scan_code_roots(&buf_scan_non_heap_roots, true /* do_marking */);
4869 // Walk the code cache/strong code roots w/o buffering, because StarTask
4870 // cannot handle unaligned oop locations.
4871 CodeBlobToOopClosure eager_scan_code_roots(scan_non_heap_roots, true /* do_marking */);
4872 4869
4873 process_strong_roots(false, // no scoping; this is parallel code 4870 process_strong_roots(false, // no scoping; this is parallel code
4874 so, 4871 so,
4875 &buf_scan_non_heap_roots, 4872 &buf_scan_non_heap_roots,
4876 &eager_scan_code_roots, 4873 &scan_code_roots,
4877 scan_klasses 4874 scan_klasses
4878 ); 4875 );
4879 4876
4880 // Now the CM ref_processor roots. 4877 // Now the CM ref_processor roots.
4881 if (!_process_strong_tasks->is_task_claimed(G1H_PS_refProcessor_oops_do)) { 4878 if (!_process_strong_tasks->is_task_claimed(G1H_PS_refProcessor_oops_do)) {
4925 mark_strong_code_roots_ms = (os::elapsedTime() - mark_strong_roots_start) * 1000.0; 4922 mark_strong_code_roots_ms = (os::elapsedTime() - mark_strong_roots_start) * 1000.0;
4926 } 4923 }
4927 g1_policy()->phase_times()->record_strong_code_root_mark_time(worker_i, mark_strong_code_roots_ms); 4924 g1_policy()->phase_times()->record_strong_code_root_mark_time(worker_i, mark_strong_code_roots_ms);
4928 4925
4929 // Now scan the complement of the collection set. 4926 // Now scan the complement of the collection set.
4930 if (scan_rs != NULL) { 4927 CodeBlobToOopClosure eager_scan_code_roots(scan_non_heap_roots, true /* do_marking */);
4931 g1_rem_set()->oops_into_collection_set_do(scan_rs, &eager_scan_code_roots, worker_i); 4928 g1_rem_set()->oops_into_collection_set_do(scan_rs, &eager_scan_code_roots, worker_i);
4932 } 4929
4933 _process_strong_tasks->all_tasks_completed(); 4930 _process_strong_tasks->all_tasks_completed();
4934 } 4931 }
4935 4932
4936 void 4933 void
4937 G1CollectedHeap::g1_process_weak_roots(OopClosure* root_closure) { 4934 G1CollectedHeap::g1_process_weak_roots(OopClosure* root_closure) {