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comparison src/share/vm/services/management.cpp @ 1703:f6f3eef8a521

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6581734: CMS Old Gen's collection usage is zero after GC which is incorrect Summary: Management code enabled for use by a concurrent collector. Reviewed-by: mchung, ysr
author kevinw
date Fri, 30 Jul 2010 22:43:50 +0100
parents c18cbe5936b8
children 1c63587d925b
comparison
equal deleted inserted replaced
1594:b9bc732be7c0 1703:f6f3eef8a521
1898 THROW(vmSymbols::java_lang_NullPointerException()); 1898 THROW(vmSymbols::java_lang_NullPointerException());
1899 } 1899 }
1900 1900
1901 // Get the GCMemoryManager 1901 // Get the GCMemoryManager
1902 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK); 1902 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK);
1903 if (mgr->last_gc_stat() == NULL) {
1904 gc_stat->gc_index = 0;
1905 return;
1906 }
1907 1903
1908 // Make a copy of the last GC statistics 1904 // Make a copy of the last GC statistics
1909 // GC may occur while constructing the last GC information 1905 // GC may occur while constructing the last GC information
1910 int num_pools = MemoryService::num_memory_pools(); 1906 int num_pools = MemoryService::num_memory_pools();
1911 GCStatInfo* stat = new GCStatInfo(num_pools); 1907 GCStatInfo* stat = new GCStatInfo(num_pools);
1912 stat->copy_stat(mgr->last_gc_stat()); 1908 if (mgr->get_last_gc_stat(stat) == 0) {
1909 gc_stat->gc_index = 0;
1910 return;
1911 }
1913 1912
1914 gc_stat->gc_index = stat->gc_index(); 1913 gc_stat->gc_index = stat->gc_index();
1915 gc_stat->start_time = Management::ticks_to_ms(stat->start_time()); 1914 gc_stat->start_time = Management::ticks_to_ms(stat->start_time());
1916 gc_stat->end_time = Management::ticks_to_ms(stat->end_time()); 1915 gc_stat->end_time = Management::ticks_to_ms(stat->end_time());
1917 1916