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Diffstat (limited to 'arch/common/fib.h')
-rw-r--r-- | arch/common/fib.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/common/fib.h b/arch/common/fib.h new file mode 100644 index 00000000..493cfd0f --- /dev/null +++ b/arch/common/fib.h @@ -0,0 +1,50 @@ +/* + * HardInfo - Displays System Information + * Copyright (C) 2003-2006 Leandro A. F. Pereira <leandro@linuxmag.com.br> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, version 2. + * + * This program 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 for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +static unsigned long long +fib(unsigned long long n) +{ + if (n == 0) + return 0; + else if (n == 1 || n == 2) + return 1; + return fib(n - 1) + fib(n - 2); +} + +static gchar * +benchmark_fib(void) +{ + GTimer *timer = g_timer_new(); + gdouble elapsed = 0; + + shell_view_set_enabled(FALSE); + shell_status_update("Calculating the 42<sup>th</sup> Fibonacci number..."); + + g_timer_start(timer); + fib(42); /* the answer? :) */ + g_timer_stop(timer); + + elapsed = g_timer_elapsed(timer, NULL); + + g_timer_destroy(timer); + + gchar *retval = g_strdup_printf("[Results <i>(in seconds; lower is better)</i>]\n" + "<b>This Machine</b>=<b>%.2f</b>\n", elapsed); + return benchmark_include_results(retval, "Fibonacci"); +} + |