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infra: dent order statistics

This commit is contained in:
Thomas Schoebel-Theuer 2020-09-11 14:50:02 +02:00 committed by Thomas Schoebel-Theuer
parent 9e3faf159c
commit eb6e3dc20d
2 changed files with 29 additions and 0 deletions
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5
kernel/sy_old/strategy.h
View File

@ -140,6 +140,11 @@ struct mars_global {
int deleted_border;
int deleted_min;
int trigger_mode;
/* statistics */
int nr_readdir;
int nr_readitem;
int nr_ordered;
int nr_unordered;
bool main_trigger;
struct list_head *dent_hash_table[MARS_GLOBAL_HASH_BASE];
};

24
kernel/sy_old/sy_generic.c
View File

@ -1501,6 +1501,7 @@ int mars_filler(void *__buf, const char *name, int namlen, loff_t offset,
bool use_channel = false;
cookie->hit = true;
cookie->global->nr_readitem++;
if (!name || !*name || name[0] == '.') {
return 0;
@ -1754,6 +1755,7 @@ void _mars_order_all(struct mars_cookie *cookie)
true) {
get_inode(dent->d_path, dent, true);
dent->d_unordered = true;
cookie->global->nr_unordered++;
/* time-* must be the very last items */
if (strncmp(dent->d_name, "time-", 5))
list_add(&dent->dent_link, &later_anchor);
@ -1776,6 +1778,7 @@ void _mars_order_all(struct mars_cookie *cookie)
}
brick_string_free(check);
}
cookie->global->nr_ordered++;
get_inode(dent->d_path, dent, true);
_mars_order(cookie, dent);
}
@ -1828,6 +1831,8 @@ static int _mars_readdir(struct mars_cookie *cookie)
mapping_set_gfp_mask(mapping, mapping_gfp_mask(mapping) & ~(__GFP_IO | __GFP_FS));
}
cookie->global->nr_readdir++;
for (;;) {
// remove_this
#ifdef HAS_VFS_READDIR
@ -1971,6 +1976,10 @@ int _op_scan(struct say_channel **say_channel,
dent->d_subtree = alloc_mars_global();
}
sub_cookie.global = dent->d_subtree;
sub_cookie.global->nr_readdir = 0;
sub_cookie.global->nr_readitem = 0;
sub_cookie.global->nr_ordered = 0;
sub_cookie.global->nr_unordered = 0;
}
*found_dir = true;
status = _mars_readdir(&sub_cookie);
@ -2160,6 +2169,11 @@ int mars_get_dent_list(struct mars_global *global,
down_write(&global->dent_mutex);
global->nr_readdir = 0;
global->nr_readitem = 0;
global->nr_ordered = 0;
global->nr_unordered = 0;
total_status = _mars_readdir(&cookie);
total_status =
@ -2225,6 +2239,11 @@ int mars_dent_work(struct mars_global *global,
down_write(&global->dent_mutex);
global->nr_readdir = 0;
global->nr_readitem = 0;
global->nr_ordered = 0;
global->nr_unordered = 0;
restart:
MARS_IO("at restart\n");
found_dir = false;
@ -3378,6 +3397,11 @@ void _show_dent_list(struct mars_global *global, int *count)
}
}
MARS_STAT("flat_count=%d sub_count=%d\n", flat_count, sub_count);
MARS_STAT("nr_readdir=%d nr_readitem=%d nr_ordered=%d nr_unordered=%d\n",
global->nr_readdir,
global->nr_readitem,
global->nr_ordered,
global->nr_unordered);
up_read(&global->dent_mutex);
}