mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-tools.git
synced 2024-11-14 13:23:42 +08:00
f2fs-tools: add f2fstat to print f2fs's status in sec
This tool prints /sys/kernel/debug/f2fs/status in sec so that we can monitor variation of f2fs status. Signed-off-by: Changman Lee <cm224.lee@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
parent
6da30100ee
commit
a0a5567e3e
@ -2,4 +2,4 @@
|
||||
|
||||
ACLOCAL_AMFLAGS = -I m4
|
||||
|
||||
SUBDIRS = man lib mkfs fsck
|
||||
SUBDIRS = man lib mkfs fsck tools
|
||||
|
@ -83,6 +83,7 @@ AC_CONFIG_FILES([
|
||||
lib/Makefile
|
||||
mkfs/Makefile
|
||||
fsck/Makefile
|
||||
tools/Makefile
|
||||
])
|
||||
|
||||
AC_OUTPUT
|
||||
|
7
tools/Makefile.am
Normal file
7
tools/Makefile.am
Normal file
@ -0,0 +1,7 @@
|
||||
## Makefile.am
|
||||
|
||||
AM_CPPFLAGS = ${libuuid_CFLAGS} -I$(top_srcdir)/include
|
||||
AM_CFLAGS = -Wall
|
||||
sbin_PROGRAMS = f2fstat
|
||||
f2fstat_SOURCES = f2fstat.c
|
||||
f2fstat_LDADD = ${libuuid_LIBS} $(top_builddir)/lib/libf2fs.la
|
214
tools/f2fstat.c
Normal file
214
tools/f2fstat.c
Normal file
@ -0,0 +1,214 @@
|
||||
#include <stdio.h>
|
||||
#include <unistd.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
#ifdef DEBUG
|
||||
#define dbg(fmt, args...) printf(fmt, __VA_ARGS__);
|
||||
#else
|
||||
#define dbg(fmt, args...)
|
||||
#endif
|
||||
|
||||
/*
|
||||
* f2fs status
|
||||
*/
|
||||
#define F2FS_STATUS "/sys/kernel/debug/f2fs/status"
|
||||
|
||||
unsigned long util;
|
||||
unsigned long used_node_blks;
|
||||
unsigned long used_data_blks;
|
||||
//unsigned long inline_inode;
|
||||
|
||||
unsigned long free_segs;
|
||||
unsigned long valid_segs;
|
||||
unsigned long dirty_segs;
|
||||
unsigned long prefree_segs;
|
||||
|
||||
unsigned long gc;
|
||||
unsigned long bg_gc;
|
||||
unsigned long gc_data_blks;
|
||||
unsigned long gc_node_blks;
|
||||
|
||||
//unsigned long extent_hit_ratio;
|
||||
|
||||
unsigned long dirty_node;
|
||||
unsigned long dirty_dents;
|
||||
unsigned long dirty_meta;
|
||||
unsigned long nat_caches;
|
||||
unsigned long dirty_sit;
|
||||
|
||||
unsigned long free_nids;
|
||||
|
||||
unsigned long ssr_blks;
|
||||
unsigned long lfs_blks;
|
||||
|
||||
|
||||
struct options {
|
||||
int delay;
|
||||
int interval;
|
||||
};
|
||||
|
||||
struct mm_table {
|
||||
const char *name;
|
||||
unsigned long *val;
|
||||
};
|
||||
|
||||
static int compare_mm_table(const void *a, const void *b)
|
||||
{
|
||||
dbg("[COMPARE] %s, %s\n", ((struct mm_table *)a)->name, ((struct mm_table *)b)->name);
|
||||
return strcmp(((struct mm_table *)a)->name, ((struct mm_table *)b)->name);
|
||||
}
|
||||
|
||||
static inline void remove_newline(char **head)
|
||||
{
|
||||
again:
|
||||
if (**head == '\n') {
|
||||
*head = *head + 1;
|
||||
goto again;
|
||||
}
|
||||
}
|
||||
|
||||
void f2fstat(void)
|
||||
{
|
||||
int fd;
|
||||
int ret;
|
||||
char keyname[32];
|
||||
char buf[4096];
|
||||
struct mm_table key = { keyname, NULL };
|
||||
struct mm_table *found;
|
||||
int f2fstat_table_cnt;
|
||||
char *head, *tail;
|
||||
|
||||
static struct mm_table f2fstat_table[] = {
|
||||
{ " - Data", &used_data_blks },
|
||||
{ " - Dirty", &dirty_segs },
|
||||
{ " - Free", &free_segs },
|
||||
{ " - NATs", &nat_caches },
|
||||
{ " - Node", &used_node_blks },
|
||||
{ " - Prefree", &prefree_segs },
|
||||
{ " - SITs", &dirty_sit },
|
||||
{ " - Valid", &valid_segs },
|
||||
{ " - dents", &dirty_dents },
|
||||
{ " - meta", &dirty_meta },
|
||||
{ " - nodes", &dirty_node },
|
||||
{ "GC calls", &gc },
|
||||
{ "LFS", &lfs_blks },
|
||||
{ "SSR", &ssr_blks },
|
||||
{ "Utilization", &util },
|
||||
};
|
||||
|
||||
f2fstat_table_cnt = sizeof(f2fstat_table)/sizeof(struct mm_table);
|
||||
|
||||
fd = open(F2FS_STATUS, O_RDONLY);
|
||||
if (fd < 0) {
|
||||
perror("open " F2FS_STATUS);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
ret = read(fd, buf, 4096);
|
||||
if (ret < 0) {
|
||||
perror("read " F2FS_STATUS);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
buf[ret] = '\0';
|
||||
|
||||
head = buf;
|
||||
for (;;) {
|
||||
remove_newline(&head);
|
||||
tail = strchr(head, ':');
|
||||
if (!tail)
|
||||
break;
|
||||
*tail = '\0';
|
||||
if (strlen(head) >= sizeof(keyname)) {
|
||||
dbg("[OVER] %s\n", head);
|
||||
*tail = ':';
|
||||
tail = strchr(head, '\n');
|
||||
head = tail + 1;
|
||||
continue;
|
||||
}
|
||||
|
||||
strcpy(keyname, head);
|
||||
|
||||
found = bsearch(&key, f2fstat_table, f2fstat_table_cnt, sizeof(struct mm_table), compare_mm_table);
|
||||
dbg("[RESULT] %s (%s)\n", head, (found) ? "O" : "X");
|
||||
head = tail + 1;
|
||||
if (!found)
|
||||
goto nextline;
|
||||
|
||||
*(found->val) = strtoul(head, &tail, 10);
|
||||
nextline:
|
||||
tail = strchr(head, '\n');
|
||||
if (!tail)
|
||||
break;
|
||||
head = tail + 1;
|
||||
}
|
||||
|
||||
close(fd);
|
||||
}
|
||||
|
||||
void usage(void)
|
||||
{
|
||||
printf("Usage: f2fstat [option]\n"
|
||||
" -d delay (secs)\n"
|
||||
" -i interval of head info\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
void parse_option(int argc, char *argv[], struct options *opt)
|
||||
{
|
||||
char option;
|
||||
const char *option_string = "d:i:h";
|
||||
|
||||
while ((option = getopt(argc, argv, option_string)) != EOF) {
|
||||
switch (option) {
|
||||
case 'd':
|
||||
opt->delay = atoi(optarg);
|
||||
break;
|
||||
case 'i':
|
||||
opt->interval = atoi(optarg);
|
||||
break;
|
||||
default:
|
||||
usage();
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void print_head(void)
|
||||
{
|
||||
printf("---utilization--- -----------main area-------- ---balancing async-- -gc- ---alloc---\n");
|
||||
printf("util node data free valid dirty prefree node dent meta sit gc ssr lfs\n");
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
char format[] = "%3ld %6ld %6ld %6ld %6ld %6ld %6ld %5ld %5ld %3ld %3ld %5ld %6ld %6ld\n";
|
||||
int head_interval;
|
||||
struct options opt = {
|
||||
.delay = 1,
|
||||
.interval = 20,
|
||||
};
|
||||
|
||||
parse_option(argc, argv, &opt);
|
||||
head_interval = opt.interval;
|
||||
|
||||
print_head();
|
||||
while (1) {
|
||||
if (head_interval-- == 0) {
|
||||
print_head();
|
||||
head_interval = opt.interval;
|
||||
}
|
||||
|
||||
f2fstat();
|
||||
|
||||
printf(format, util, used_node_blks, used_data_blks,
|
||||
free_segs, valid_segs, dirty_segs, prefree_segs,
|
||||
dirty_node, dirty_dents, dirty_meta, dirty_sit,
|
||||
gc, ssr_blks, lfs_blks);
|
||||
|
||||
sleep(opt.delay);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
Loading…
Reference in New Issue
Block a user