938   // compute expansion delta needed for reaching desired free percentage
 939   if (free_percentage < desired_free_percentage) {
 940     size_t desired_capacity = (size_t)(used() / ((double) 1 - desired_free_percentage));
 941     assert(desired_capacity >= capacity(), "invalid expansion size");
 942     size_t expand_bytes = MAX2(desired_capacity - capacity(), MinHeapDeltaBytes);
 943     if (PrintGCDetails && Verbose) {
 944       size_t desired_capacity = (size_t)(used() / ((double) 1 - desired_free_percentage));
 945       gclog_or_tty->print_cr("\nFrom compute_new_size: ");
 946       gclog_or_tty->print_cr("  Free fraction %f", free_percentage);
 947       gclog_or_tty->print_cr("  Desired free fraction %f",
 948         desired_free_percentage);
 949       gclog_or_tty->print_cr("  Maximum free fraction %f",
 950         maximum_free_percentage);
 951       gclog_or_tty->print_cr("  Capacity "SIZE_FORMAT, capacity()/1000);
 952       gclog_or_tty->print_cr("  Desired capacity "SIZE_FORMAT,
 953         desired_capacity/1000);
 954       int prev_level = level() - 1;
 955       if (prev_level >= 0) {
 956         size_t prev_size = 0;
 957         GenCollectedHeap* gch = GenCollectedHeap::heap();
 958         Generation* prev_gen = gch->_gens[prev_level];
 959         prev_size = prev_gen->capacity();
 960           gclog_or_tty->print_cr("  Younger gen size "SIZE_FORMAT,
 961                                  prev_size/1000);
 962       }
 963       gclog_or_tty->print_cr("  unsafe_max_alloc_nogc "SIZE_FORMAT,
 964         unsafe_max_alloc_nogc()/1000);
 965       gclog_or_tty->print_cr("  contiguous available "SIZE_FORMAT,
 966         contiguous_available()/1000);
 967       gclog_or_tty->print_cr("  Expand by "SIZE_FORMAT" (bytes)",
 968         expand_bytes);
 969     }
 970     // safe if expansion fails
 971     expand(expand_bytes, 0, CMSExpansionCause::_satisfy_free_ratio);
 972     if (PrintGCDetails && Verbose) {
 973       gclog_or_tty->print_cr("  Expanded free fraction %f",
 974         ((double) free()) / capacity());
 975     }
 976   } else {
 977     size_t desired_capacity = (size_t)(used() / ((double) 1 - desired_free_percentage));
 978     assert(desired_capacity <= capacity(), "invalid expansion size");

 938   // compute expansion delta needed for reaching desired free percentage
 939   if (free_percentage < desired_free_percentage) {
 940     size_t desired_capacity = (size_t)(used() / ((double) 1 - desired_free_percentage));
 941     assert(desired_capacity >= capacity(), "invalid expansion size");
 942     size_t expand_bytes = MAX2(desired_capacity - capacity(), MinHeapDeltaBytes);
 943     if (PrintGCDetails && Verbose) {
 944       size_t desired_capacity = (size_t)(used() / ((double) 1 - desired_free_percentage));
 945       gclog_or_tty->print_cr("\nFrom compute_new_size: ");
 946       gclog_or_tty->print_cr("  Free fraction %f", free_percentage);
 947       gclog_or_tty->print_cr("  Desired free fraction %f",
 948         desired_free_percentage);
 949       gclog_or_tty->print_cr("  Maximum free fraction %f",
 950         maximum_free_percentage);
 951       gclog_or_tty->print_cr("  Capacity "SIZE_FORMAT, capacity()/1000);
 952       gclog_or_tty->print_cr("  Desired capacity "SIZE_FORMAT,
 953         desired_capacity/1000);
 954       int prev_level = level() - 1;
 955       if (prev_level >= 0) {
 956         size_t prev_size = 0;
 957         GenCollectedHeap* gch = GenCollectedHeap::heap();
 958         Generation* prev_gen = gch->get_gen(prev_level);
 959         prev_size = prev_gen->capacity();
 960           gclog_or_tty->print_cr("  Younger gen size "SIZE_FORMAT,
 961                                  prev_size/1000);
 962       }
 963       gclog_or_tty->print_cr("  unsafe_max_alloc_nogc "SIZE_FORMAT,
 964         unsafe_max_alloc_nogc()/1000);
 965       gclog_or_tty->print_cr("  contiguous available "SIZE_FORMAT,
 966         contiguous_available()/1000);
 967       gclog_or_tty->print_cr("  Expand by "SIZE_FORMAT" (bytes)",
 968         expand_bytes);
 969     }
 970     // safe if expansion fails
 971     expand(expand_bytes, 0, CMSExpansionCause::_satisfy_free_ratio);
 972     if (PrintGCDetails && Verbose) {
 973       gclog_or_tty->print_cr("  Expanded free fraction %f",
 974         ((double) free()) / capacity());
 975     }
 976   } else {
 977     size_t desired_capacity = (size_t)(used() / ((double) 1 - desired_free_percentage));
 978     assert(desired_capacity <= capacity(), "invalid expansion size");