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grub2/0427-grub-core-commands-testspeed.c-New-command-testspeed.patch
Peter Jones 31004e676e Rebase to upstream snapshot.
2013-06-07 14:03:56 -04:00

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From 54f2bdbfd75f25d6a109d92b25879dd30e88b227 Mon Sep 17 00:00:00 2001
From: Bean <bean123ch@gmail.com>
Date: Sun, 5 May 2013 18:16:48 +0200
Subject: [PATCH 427/471] * grub-core/commands/testspeed.c: New command
testspeed.
---
ChangeLog | 4 ++
grub-core/Makefile.core.def | 4 ++
grub-core/commands/ls.c | 3 +-
grub-core/commands/testspeed.c | 115 +++++++++++++++++++++++++++++++++++++++++
grub-core/normal/misc.c | 44 +++++++++++-----
include/grub/normal.h | 9 +++-
6 files changed, 165 insertions(+), 14 deletions(-)
create mode 100644 grub-core/commands/testspeed.c
diff --git a/ChangeLog b/ChangeLog
index c9e6f06..b79c57a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2013-05-05 Bean <bean123ch@gmail.com>
+
+ * grub-core/commands/testspeed.c: New command testspeed.
+
2013-05-05 Vladimir Serbinenko <phcoder@gmail.com>
Factor-out human-size printing.
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index 469524f..56a1ec3 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -2019,3 +2019,7 @@ module = {
enable = i386;
};
+module = {
+ name = testspeed;
+ common = commands/testspeed.c;
+};
diff --git a/grub-core/commands/ls.c b/grub-core/commands/ls.c
index 6c608f6..0eaf836 100644
--- a/grub-core/commands/ls.c
+++ b/grub-core/commands/ls.c
@@ -141,7 +141,8 @@ print_files_long (const char *filename, const struct grub_dirhook_info *info,
if (! ctx->human)
grub_printf ("%-12llu", (unsigned long long) file->size);
else
- grub_printf ("%-12s", grub_get_human_size (file->size, 1));
+ grub_printf ("%-12s", grub_get_human_size (file->size,
+ GRUB_HUMAN_SIZE_SHORT));
grub_file_close (file);
grub_free (pathname);
}
diff --git a/grub-core/commands/testspeed.c b/grub-core/commands/testspeed.c
new file mode 100644
index 0000000..d45fa7c
--- /dev/null
+++ b/grub-core/commands/testspeed.c
@@ -0,0 +1,115 @@
+/* testspeed.c - Command to test file read speed */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2012 Free Software Foundation, Inc.
+ *
+ * GRUB 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, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/mm.h>
+#include <grub/file.h>
+#include <grub/time.h>
+#include <grub/misc.h>
+#include <grub/dl.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/normal.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define DEFAULT_BLOCK_SIZE 65536
+
+static const struct grub_arg_option options[] =
+ {
+ {"size", 's', 0, N_("Specify size for each read operation"), 0, ARG_TYPE_INT},
+ {0, 0, 0, 0, 0, 0}
+ };
+
+static grub_err_t
+grub_cmd_testspeed (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+ struct grub_arg_list *state = ctxt->state;
+ grub_uint64_t start;
+ grub_uint64_t end;
+ grub_ssize_t block_size;
+ grub_disk_addr_t total_size;
+ char *buffer;
+ grub_file_t file;
+ grub_uint64_t whole, fraction;
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+ block_size = (state[0].set) ?
+ grub_strtoul (state[0].arg, 0, 0) : DEFAULT_BLOCK_SIZE;
+
+ if (block_size <= 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("invalid block size"));
+
+ buffer = grub_malloc (block_size);
+ if (buffer == NULL)
+ return grub_errno;
+
+ file = grub_file_open (args[0]);
+ if (file == NULL)
+ goto quit;
+
+ total_size = 0;
+ start = grub_get_time_ms ();
+ while (1)
+ {
+ grub_ssize_t size = grub_file_read (file, buffer, block_size);
+ if (size <= 0)
+ break;
+ total_size += size;
+ }
+ end = grub_get_time_ms ();
+ grub_file_close (file);
+
+ grub_printf_ (N_("File size: %s\n"),
+ grub_get_human_size (total_size, GRUB_HUMAN_SIZE_NORMAL));
+ whole = grub_divmod64 (end - start, 1000, &fraction);
+ grub_printf_ (N_("Elapsed time: %llu.%03llu s \n"),
+ (unsigned long long) whole,
+ (unsigned long long) fraction);
+
+ if (end != start)
+ {
+ grub_uint64_t speed =
+ grub_divmod64 (total_size * 100ULL * 1000ULL, end - start, 0);
+
+ grub_printf_ (N_("Speed: %s \n"),
+ grub_get_human_size (speed,
+ GRUB_HUMAN_SIZE_SPEED));
+ }
+
+ quit:
+ grub_free (buffer);
+
+ return grub_errno;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(testspeed)
+{
+ cmd = grub_register_extcmd ("testspeed", grub_cmd_testspeed, 0, N_("[-s SIZE] FILENAME"),
+ N_("Test file read speed."),
+ options);
+}
+
+GRUB_MOD_FINI(testspeed)
+{
+ grub_unregister_extcmd (cmd);
+}
diff --git a/grub-core/normal/misc.c b/grub-core/normal/misc.c
index 1a86e0f..bc6ce17 100644
--- a/grub-core/normal/misc.c
+++ b/grub-core/normal/misc.c
@@ -28,25 +28,45 @@
#include <grub/i18n.h>
#include <grub/partition.h>
-static const char *grub_human_sizes[] = {N_("B"), N_("KiB"), N_("MiB"), N_("GiB"), N_("TiB")};
-static const char *grub_human_short_sizes[] = {"", "K", "M", "G", "T"};
+static const char *grub_human_sizes[3][6] =
+ {
+ /* This algorithm in reality would work only up to (2^64) / 100 B = 81 PiB.
+ Put here all possible suffixes it can produce so no array bounds check
+ is needed.
+ */
+ /* TRANSLATORS: that's the list of binary unit prefixes. */
+ { N_("B"), N_("KiB"), N_("MiB"), N_("GiB"), N_("TiB"), N_("PiB")},
+ /* TRANSLATORS: that's the list of binary unit prefixes. */
+ { "", N_("K"), N_("M"), N_("G"), N_("T"), N_("P") },
+ /* TRANSLATORS: that's the list of binary unit prefixes. */
+ { N_("B/s"), N_("KiB/s"), N_("MiB/s"), N_("GiB/s"), N_("TiB/s"), N_("PiB/s"), },
+ };
const char *
-grub_get_human_size (grub_uint64_t size, int sh)
+grub_get_human_size (grub_uint64_t size, enum grub_human_size_type type)
{
- grub_uint64_t fsize = size * 100ULL;
- grub_uint64_t fsz = size;
- int units = 0;
- static char buf[20];
+ grub_uint64_t fsize;
+ unsigned units = 0;
+ static char buf[30];
+ const char *umsg;
- while (fsz / 1024)
+ if (type != GRUB_HUMAN_SIZE_SPEED)
+ fsize = size * 100ULL;
+ else
+ fsize = size;
+
+ /* Since 2^64 / 1024^5 < 102400, this can give at most 5 iterations.
+ So units <=5, so impossible to go past the end of array.
+ */
+ while (fsize >= 102400)
{
fsize = (fsize + 512) / 1024;
- fsz /= 1024;
units++;
}
- if (units)
+ umsg = _(grub_human_sizes[type][units]);
+
+ if (units || type == GRUB_HUMAN_SIZE_SPEED)
{
grub_uint64_t whole, fraction;
@@ -54,11 +74,11 @@ grub_get_human_size (grub_uint64_t size, int sh)
grub_snprintf (buf, sizeof (buf),
"%" PRIuGRUB_UINT64_T
".%02" PRIuGRUB_UINT64_T "%s", whole, fraction,
- sh ? grub_human_short_sizes[units] : _(grub_human_sizes[units]));
+ umsg);
}
else
grub_snprintf (buf, sizeof (buf), "%llu%s", (unsigned long long) size,
- sh ? grub_human_short_sizes[units] : _(grub_human_sizes[units]));
+ umsg);
return buf;
}
diff --git a/include/grub/normal.h b/include/grub/normal.h
index 930b3b9..c32bc96 100644
--- a/include/grub/normal.h
+++ b/include/grub/normal.h
@@ -150,7 +150,14 @@ grub_dyncmd_get_cmd (grub_command_t cmd);
void
grub_gettext_reread_prefix (const char *val);
+enum grub_human_size_type
+ {
+ GRUB_HUMAN_SIZE_NORMAL,
+ GRUB_HUMAN_SIZE_SHORT,
+ GRUB_HUMAN_SIZE_SPEED,
+ };
+
const char *
-grub_get_human_size (grub_uint64_t size, int sh);
+grub_get_human_size (grub_uint64_t size, enum grub_human_size_type type);
#endif /* ! GRUB_NORMAL_HEADER */
--
1.8.2.1
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