9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn/* cacheinfo.c - disk cache statistics */
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn/*
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * GRUB -- GRand Unified Bootloader
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * Copyright (C) 2008,2010 Free Software Foundation, Inc.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn *
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * GRUB is free software: you can redistribute it and/or modify
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * it under the terms of the GNU General Public License as published by
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * the Free Software Foundation, either version 3 of the License, or
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * (at your option) any later version.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn *
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * GRUB is distributed in the hope that it will be useful,
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * but WITHOUT ANY WARRANTY; without even the implied warranty of
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * GNU General Public License for more details.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn *
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * You should have received a copy of the GNU General Public License
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn */
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn#include <grub/dl.h>
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn#include <grub/misc.h>
edfa49ff6d1bd39465e21e3b28aee863e91c5e3f#include <grub/command.h>
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn#include <grub/i18n.h>
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn#include <grub/disk.h>
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnnstatic grub_err_t
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnngrub_rescue_cmd_info (struct grub_command *cmd __attribute__ ((unused)),
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn int argc __attribute__ ((unused)),
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn char *argv[] __attribute__ ((unused)))
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn{
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn unsigned long hits, misses;
edfa49ff6d1bd39465e21e3b28aee863e91c5e3f
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn grub_disk_cache_get_performance (&hits, &misses);
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn grub_printf_ (N_("Disk cache: hits = %lu, misses = %lu "), hits, misses);
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn if (hits + misses)
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn {
edfa49ff6d1bd39465e21e3b28aee863e91c5e3f unsigned long ratio = hits * 10000 / (hits + misses);
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn grub_printf ("(%lu.%lu%%)\n", ratio / 100, ratio % 100);
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn }
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn else
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn grub_puts_ (N_("(N/A)"));
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn return 0;
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn}
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnnstatic grub_command_t cmd_cacheinfo;
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnnGRUB_MOD_INIT(cacheinfo)
edfa49ff6d1bd39465e21e3b28aee863e91c5e3f{
edfa49ff6d1bd39465e21e3b28aee863e91c5e3f cmd_cacheinfo =
edfa49ff6d1bd39465e21e3b28aee863e91c5e3f grub_register_command ("cacheinfo", grub_rescue_cmd_info,
edfa49ff6d1bd39465e21e3b28aee863e91c5e3f 0, N_("Get disk cache info."));
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn}
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnnGRUB_MOD_FINI(cacheinfo)
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn{
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn grub_unregister_command (cmd_cacheinfo);
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn}
9acbbeaf2a1ffe5c14b244867d427714fab43c5cnn