589 // So maximum of NewSize should be 'max_juint * 1M'
590 if (UseG1GC && (value > (max_juint * 1 * M))) {
591 CommandLineError::print(verbose,
592 "NewSize (" SIZE_FORMAT ") must be less than ergonomic maximum value\n",
593 value);
594 return Flag::VIOLATES_CONSTRAINT;
595 }
596 #endif // INCLUDE_ALL_GCS
597 #endif // _LP64
598 return Flag::SUCCESS;
599 }
600
601 Flag::Error MinTLABSizeConstraintFunc(size_t value, bool verbose) {
602 // At least, alignment reserve area is needed.
603 if (value < ThreadLocalAllocBuffer::alignment_reserve_in_bytes()) {
604 CommandLineError::print(verbose,
605 "MinTLABSize (" SIZE_FORMAT ") must be "
606 "greater than or equal to reserved area in TLAB (" SIZE_FORMAT ")\n",
607 value, ThreadLocalAllocBuffer::alignment_reserve_in_bytes());
608 return Flag::VIOLATES_CONSTRAINT;
609 } else {
610 return Flag::SUCCESS;
611 }
612 }
613
614 Flag::Error TLABSizeConstraintFunc(size_t value, bool verbose) {
615 // Skip for default value of zero which means set ergonomically.
616 if (FLAG_IS_CMDLINE(TLABSize)) {
617 if (value < MinTLABSize) {
618 CommandLineError::print(verbose,
619 "TLABSize (" SIZE_FORMAT ") must be "
620 "greater than or equal to MinTLABSize (" SIZE_FORMAT ")\n",
621 value, MinTLABSize);
622 return Flag::VIOLATES_CONSTRAINT;
623 }
624 if (value > (ThreadLocalAllocBuffer::max_size() * HeapWordSize)) {
625 CommandLineError::print(verbose,
626 "TLABSize (" SIZE_FORMAT ") must be "
627 "less than or equal to ergonomic TLAB maximum size (" SIZE_FORMAT ")\n",
628 value, (ThreadLocalAllocBuffer::max_size() * HeapWordSize));
629 return Flag::VIOLATES_CONSTRAINT;
630 }
631 }
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589 // So maximum of NewSize should be 'max_juint * 1M'
590 if (UseG1GC && (value > (max_juint * 1 * M))) {
591 CommandLineError::print(verbose,
592 "NewSize (" SIZE_FORMAT ") must be less than ergonomic maximum value\n",
593 value);
594 return Flag::VIOLATES_CONSTRAINT;
595 }
596 #endif // INCLUDE_ALL_GCS
597 #endif // _LP64
598 return Flag::SUCCESS;
599 }
600
601 Flag::Error MinTLABSizeConstraintFunc(size_t value, bool verbose) {
602 // At least, alignment reserve area is needed.
603 if (value < ThreadLocalAllocBuffer::alignment_reserve_in_bytes()) {
604 CommandLineError::print(verbose,
605 "MinTLABSize (" SIZE_FORMAT ") must be "
606 "greater than or equal to reserved area in TLAB (" SIZE_FORMAT ")\n",
607 value, ThreadLocalAllocBuffer::alignment_reserve_in_bytes());
608 return Flag::VIOLATES_CONSTRAINT;
609 }
610 if (value > (ThreadLocalAllocBuffer::max_size() * HeapWordSize)) {
611 CommandLineError::print(verbose,
612 "MinTLABSize (" SIZE_FORMAT ") must be "
613 "less than or equal to ergonomic TLAB maximum (" SIZE_FORMAT ")\n",
614 value, ThreadLocalAllocBuffer::max_size() * HeapWordSize);
615 return Flag::VIOLATES_CONSTRAINT;
616 }
617 return Flag::SUCCESS;
618 }
619
620 Flag::Error TLABSizeConstraintFunc(size_t value, bool verbose) {
621 // Skip for default value of zero which means set ergonomically.
622 if (FLAG_IS_CMDLINE(TLABSize)) {
623 if (value < MinTLABSize) {
624 CommandLineError::print(verbose,
625 "TLABSize (" SIZE_FORMAT ") must be "
626 "greater than or equal to MinTLABSize (" SIZE_FORMAT ")\n",
627 value, MinTLABSize);
628 return Flag::VIOLATES_CONSTRAINT;
629 }
630 if (value > (ThreadLocalAllocBuffer::max_size() * HeapWordSize)) {
631 CommandLineError::print(verbose,
632 "TLABSize (" SIZE_FORMAT ") must be "
633 "less than or equal to ergonomic TLAB maximum size (" SIZE_FORMAT ")\n",
634 value, (ThreadLocalAllocBuffer::max_size() * HeapWordSize));
635 return Flag::VIOLATES_CONSTRAINT;
636 }
637 }
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