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bcacheadm stats, add flags

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-c cache# displays stats for a specific cache in the cacheset
--stats-five-min,hour,day,total specific stats for the cacheset

Change-Id: I436d36d0853a250fe773573126c7a50a7251c72d
Signed-off-by: Jacob Malevich <jam@daterainc.com>
This commit is contained in:
Jacob Malevich 2014-11-06 18:09:45 -08:00
parent 269761b11f
commit bae9ea7bbd
1 changed files with 33 additions and 13 deletions
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46
bcacheadm.c
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@ -87,6 +87,11 @@ bool status_all = false;
bool stats_all = false;
bool stats_list = false;
static const char *stats_uuid = NULL;
static const char *stats_cache_num = NULL;
bool stats_five_min = false;
bool stats_hour = false;
bool stats_day = false;
bool stats_total = false;
/* make-bcache option setters */
static int set_CACHE_SET_UUID(NihOption *option, const char *arg)
@ -221,6 +226,11 @@ static NihOption stats_options[] = {
{'a', "all", N_("all"), NULL, NULL, &stats_all, NULL},
{'l', "list", N_("list"), NULL, NULL, &stats_list, NULL},
{'u', "uuid", N_("cache_set UUID"), NULL, "UUID", &stats_uuid, NULL},
{'c', "cache", N_("cache number (starts from 0)"), NULL, "CACHE#", &stats_cache_num, NULL},
{0, "five-min-stats", N_("stats accumulated in last 5 minutes"), NULL, NULL, &stats_five_min, NULL},
{0, "hour-stats", N_("stats accumulated in last hour"), NULL, NULL, &stats_hour, NULL},
{0, "day-stats", N_("stats accumulated in last day"), NULL, NULL, &stats_day, NULL},
{0, "total-stats", N_("stats accumulated in total"), NULL, NULL, &stats_total, NULL},
NIH_OPTION_LAST
};
@ -361,29 +371,38 @@ int bcache_status (NihCommand *command, char *const *args)
if (sb_tier1) sb_state(sb_tier1, dev1);
}
static void stats_subdir(char* stats_dir)
{
char tmp[50] = "/";
if(stats_cache_num) {
strcat(tmp, "cache");
strcat(tmp, stats_cache_num);
} else if (stats_five_min)
strcat(tmp, "stats_five_minute");
else if (stats_hour)
strcat(tmp, "stats_hour");
else if (stats_day)
strcat(tmp, "stats_day");
else if (stats_total)
strcat(tmp, "stats_total");
else
return;
strcat(stats_dir, tmp);
}
int bcache_stats (NihCommand *command, char *const *args)
{
/* all prints out a STAT:\tVALUE table
* list prints out a list of all STATS
* args contains a list of STAT, and prints their VALUE
*/
int i;
char *stats_dir = NULL;
char stats_dir[200];
DIR *dir = NULL;
struct dirent *ent = NULL;
if (stats_uuid) {
/*
* dev or uuid must be passed in
* check that the given has an existing STAT directory
*/
stats_dir = (char*)malloc(sizeof(char)*
(strlen(cset_dir) +
strlen(stats_uuid) + 2));
strcpy(stats_dir, cset_dir);
strcat(stats_dir, "/");
strcat(stats_dir, stats_uuid);
stats_subdir(stats_dir);
dir = opendir(stats_dir);
if (!dir) {
fprintf(stderr, "Failed to open dir %s\n", cset_dir);
@ -398,6 +417,7 @@ int bcache_stats (NihCommand *command, char *const *args)
while ((ent = readdir(dir)) != NULL)
read_stat_dir(dir, stats_dir, ent->d_name, stats_all);
for (i = 0; args[i] != NULL; i++)
read_stat_dir(dir, stats_dir, args[i], true);