< prev index next >

src/hotspot/share/gc/g1/g1Arguments.cpp

Print this page
rev 50629 : imported patch 8204084-stefanj-review2
rev 50631 : [mq]: 8204084-gtest-fixes


  37 size_t G1Arguments::conservative_max_heap_alignment() {
  38   return HeapRegion::max_region_size();
  39 }
  40 
  41 void G1Arguments::initialize_verification_types() {
  42   if (strlen(VerifyGCType) > 0) {
  43     const char delimiter[] = " ,\n";
  44     size_t length = strlen(VerifyGCType);
  45     char* type_list = NEW_C_HEAP_ARRAY(char, length + 1, mtInternal);
  46     strncpy(type_list, VerifyGCType, length + 1);
  47     char* token = strtok(type_list, delimiter);
  48     while (token != NULL) {
  49       parse_verification_type(token);
  50       token = strtok(NULL, delimiter);
  51     }
  52     FREE_C_HEAP_ARRAY(char, type_list);
  53   }
  54 }
  55 
  56 void G1Arguments::parse_verification_type(const char* type) {
  57   if (strcmp(type, "young-only") == 0) {
  58     G1HeapVerifier::enable_verification_type(G1HeapVerifier::G1VerifyYoungOnly);
  59   } else if (strcmp(type, "initial-mark") == 0) {
  60     G1HeapVerifier::enable_verification_type(G1HeapVerifier::G1VerifyInitialMark);
  61   } else if (strcmp(type, "mixed") == 0) {
  62     G1HeapVerifier::enable_verification_type(G1HeapVerifier::G1VerifyMixed);
  63   } else if (strcmp(type, "remark") == 0) {
  64     G1HeapVerifier::enable_verification_type(G1HeapVerifier::G1VerifyRemark);
  65   } else if (strcmp(type, "cleanup") == 0) {
  66     G1HeapVerifier::enable_verification_type(G1HeapVerifier::G1VerifyCleanup);
  67   } else if (strcmp(type, "full") == 0) {
  68     G1HeapVerifier::enable_verification_type(G1HeapVerifier::G1VerifyFull);
  69   } else {
  70     log_warning(gc, verify)("VerifyGCType: '%s' is unknown. Available types are: "
  71                             "young-only, initial-mark, mixed, remark, cleanup and full", type);
  72   }
  73 }
  74 
  75 void G1Arguments::initialize() {
  76   GCArguments::initialize();
  77   assert(UseG1GC, "Error");
  78   FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads());
  79   if (ParallelGCThreads == 0) {
  80     assert(!FLAG_IS_DEFAULT(ParallelGCThreads), "The default value for ParallelGCThreads should not be 0.");
  81     vm_exit_during_initialization("The flag -XX:+UseG1GC can not be combined with -XX:ParallelGCThreads=0", NULL);
  82   }
  83 
  84   if (FLAG_IS_DEFAULT(G1ConcRefinementThreads)) {
  85     FLAG_SET_ERGO(uint, G1ConcRefinementThreads, ParallelGCThreads);
  86   }
  87 
  88   // MarkStackSize will be set (if it hasn't been set by the user)
  89   // when concurrent marking is initialized.
  90   // Its value will be based upon the number of parallel marking threads.
  91   // But we do set the maximum mark stack size here.




  37 size_t G1Arguments::conservative_max_heap_alignment() {
  38   return HeapRegion::max_region_size();
  39 }
  40 
  41 void G1Arguments::initialize_verification_types() {
  42   if (strlen(VerifyGCType) > 0) {
  43     const char delimiter[] = " ,\n";
  44     size_t length = strlen(VerifyGCType);
  45     char* type_list = NEW_C_HEAP_ARRAY(char, length + 1, mtInternal);
  46     strncpy(type_list, VerifyGCType, length + 1);
  47     char* token = strtok(type_list, delimiter);
  48     while (token != NULL) {
  49       parse_verification_type(token);
  50       token = strtok(NULL, delimiter);
  51     }
  52     FREE_C_HEAP_ARRAY(char, type_list);
  53   }
  54 }
  55 
  56 void G1Arguments::parse_verification_type(const char* type) {
  57   if (strcmp(type, "young-normal") == 0) {
  58     G1HeapVerifier::enable_verification_type(G1HeapVerifier::G1VerifyYoungNormal);
  59   } else if (strcmp(type, "concurrent-start") == 0) {
  60     G1HeapVerifier::enable_verification_type(G1HeapVerifier::G1VerifyConcurrentStart);
  61   } else if (strcmp(type, "mixed") == 0) {
  62     G1HeapVerifier::enable_verification_type(G1HeapVerifier::G1VerifyMixed);
  63   } else if (strcmp(type, "remark") == 0) {
  64     G1HeapVerifier::enable_verification_type(G1HeapVerifier::G1VerifyRemark);
  65   } else if (strcmp(type, "cleanup") == 0) {
  66     G1HeapVerifier::enable_verification_type(G1HeapVerifier::G1VerifyCleanup);
  67   } else if (strcmp(type, "full") == 0) {
  68     G1HeapVerifier::enable_verification_type(G1HeapVerifier::G1VerifyFull);
  69   } else {
  70     log_warning(gc, verify)("VerifyGCType: '%s' is unknown. Available types are: "
  71                             "young-normal, concurrent-start, mixed, remark, cleanup and full", type);
  72   }
  73 }
  74 
  75 void G1Arguments::initialize() {
  76   GCArguments::initialize();
  77   assert(UseG1GC, "Error");
  78   FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads());
  79   if (ParallelGCThreads == 0) {
  80     assert(!FLAG_IS_DEFAULT(ParallelGCThreads), "The default value for ParallelGCThreads should not be 0.");
  81     vm_exit_during_initialization("The flag -XX:+UseG1GC can not be combined with -XX:ParallelGCThreads=0", NULL);
  82   }
  83 
  84   if (FLAG_IS_DEFAULT(G1ConcRefinementThreads)) {
  85     FLAG_SET_ERGO(uint, G1ConcRefinementThreads, ParallelGCThreads);
  86   }
  87 
  88   // MarkStackSize will be set (if it hasn't been set by the user)
  89   // when concurrent marking is initialized.
  90   // Its value will be based upon the number of parallel marking threads.
  91   // But we do set the maximum mark stack size here.


< prev index next >