/* * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. *
*/
static GrowableArray<HistoEntry*>* sorted_array(int* array, int length) {
GrowableArray<HistoEntry*>* a = new GrowableArray<HistoEntry*>(length); int i = length; while (i-- > 0) a->append(new HistoEntry(i, array[i]));
a->sort(HistoEntry::compare); return a;
}
staticint total_count(GrowableArray<HistoEntry*>* profile) { int sum = 0; int i = profile->length(); while (i-- > 0) sum += profile->at(i)->count(); return sum;
}
int i = number_of_pairs; while (i-- > 0) _counters[i] = 0;
}
void BytecodePairHistogram::print(float cutoff) {
ResourceMark rm;
GrowableArray<HistoEntry*>* profile = sorted_array(_counters, number_of_pairs); // print profile int tot = total_count(profile); int abs_sum = 0;
tty->cr(); //0123456789012345678901234567890123456789012345678901234567890123456789
tty->print_cr("Histogram of %d executed bytecode pairs:", tot);
tty->cr();
tty->print_cr(" absolute relative codes 1st bytecode 2nd bytecode");
tty->print_cr("----------------------------------------------------------------------"); int i = profile->length(); while (i-- > 0) {
HistoEntry* e = profile->at(i); int abs = e->count(); float rel = abs * 100.0F / tot; if (cutoff <= rel) { int c1 = e->index() % number_of_codes; int c2 = e->index() / number_of_codes;
tty->print_cr("%10d %6.3f%% %02x %02x %-19s %s", abs, rel, c1, c2, name_for(c1), name_for(c2));
abs_sum += abs;
}
}
tty->print_cr("----------------------------------------------------------------------"); float rel_sum = abs_sum * 100.0F / tot;
tty->print_cr("%10d %6.3f%% (cutoff = %.3f%%)", abs_sum, rel_sum, cutoff);
tty->cr();
}
#endif
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