327 vm_exit_during_initialization("Invalid survivor ratio specified");
328 }
329 CollectorPolicy::initialize_flags();
330 }
331
332 G1YoungGenSizer::G1YoungGenSizer() : _sizer_kind(SizerDefaults), _adaptive_size(true) {
333 assert(G1NewSizePercent <= G1MaxNewSizePercent, "Min larger than max");
334 assert(G1NewSizePercent > 0 && G1NewSizePercent < 100, "Min out of bounds");
335 assert(G1MaxNewSizePercent > 0 && G1MaxNewSizePercent < 100, "Max out of bounds");
336
337 if (FLAG_IS_CMDLINE(NewRatio)) {
338 if (FLAG_IS_CMDLINE(NewSize) || FLAG_IS_CMDLINE(MaxNewSize)) {
339 warning("-XX:NewSize and -XX:MaxNewSize override -XX:NewRatio");
340 } else {
341 _sizer_kind = SizerNewRatio;
342 _adaptive_size = false;
343 return;
344 }
345 }
346
347 if (FLAG_IS_CMDLINE(NewSize)) {
348 _min_desired_young_length = MAX2((uint) (NewSize / HeapRegion::GrainBytes),
349 1U);
350 if (FLAG_IS_CMDLINE(MaxNewSize)) {
351 _max_desired_young_length =
352 MAX2((uint) (MaxNewSize / HeapRegion::GrainBytes),
353 1U);
354 _sizer_kind = SizerMaxAndNewSize;
355 _adaptive_size = _min_desired_young_length == _max_desired_young_length;
356 } else {
357 _sizer_kind = SizerNewSizeOnly;
358 }
359 } else if (FLAG_IS_CMDLINE(MaxNewSize)) {
360 _max_desired_young_length =
361 MAX2((uint) (MaxNewSize / HeapRegion::GrainBytes),
362 1U);
363 _sizer_kind = SizerMaxNewSizeOnly;
364 }
365 }
366
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327 vm_exit_during_initialization("Invalid survivor ratio specified");
328 }
329 CollectorPolicy::initialize_flags();
330 }
331
332 G1YoungGenSizer::G1YoungGenSizer() : _sizer_kind(SizerDefaults), _adaptive_size(true) {
333 assert(G1NewSizePercent <= G1MaxNewSizePercent, "Min larger than max");
334 assert(G1NewSizePercent > 0 && G1NewSizePercent < 100, "Min out of bounds");
335 assert(G1MaxNewSizePercent > 0 && G1MaxNewSizePercent < 100, "Max out of bounds");
336
337 if (FLAG_IS_CMDLINE(NewRatio)) {
338 if (FLAG_IS_CMDLINE(NewSize) || FLAG_IS_CMDLINE(MaxNewSize)) {
339 warning("-XX:NewSize and -XX:MaxNewSize override -XX:NewRatio");
340 } else {
341 _sizer_kind = SizerNewRatio;
342 _adaptive_size = false;
343 return;
344 }
345 }
346
347 if (FLAG_IS_CMDLINE(NewSize) && FLAG_IS_CMDLINE(MaxNewSize) && NewSize > MaxNewSize) {
348 vm_exit_during_initialization("Incompatible initial and maximum young gen sizes specified");
349 }
350
351 if (FLAG_IS_CMDLINE(NewSize)) {
352 _min_desired_young_length = MAX2((uint) (NewSize / HeapRegion::GrainBytes),
353 1U);
354 if (FLAG_IS_CMDLINE(MaxNewSize)) {
355 _max_desired_young_length =
356 MAX2((uint) (MaxNewSize / HeapRegion::GrainBytes),
357 1U);
358 _sizer_kind = SizerMaxAndNewSize;
359 _adaptive_size = _min_desired_young_length == _max_desired_young_length;
360 } else {
361 _sizer_kind = SizerNewSizeOnly;
362 }
363 } else if (FLAG_IS_CMDLINE(MaxNewSize)) {
364 _max_desired_young_length =
365 MAX2((uint) (MaxNewSize / HeapRegion::GrainBytes),
366 1U);
367 _sizer_kind = SizerMaxNewSizeOnly;
368 }
369 }
370
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