Question Weird APC Statistic

[semprot]

Please see my attachment. I use APC.



The stats graph is weird.. Sometimes it dropped under 1 mill, the "normal one" is above 5 mill.
My traffic is stable, so i think i have issue on my APC. What do you think?

 

[Fillip H.]

Your APC cache may be full, try adding this as a plugin on admin_index_main3

$cache_user = apc_cache_info('user', 1); 

$stats = array(
	'Cached Variables' 				=> vb_number_format($cache_user['num_entries']) . ' (' . vb_number_format($cache_user['mem_size'], 2, true) . ')',
	'Hits' 							=> vb_number_format($cache_user['num_hits']),
	'Misses' 						=> vb_number_format($cache_user['num_misses']),
	'Request Rate (hits, misses)'	=> vb_number_format((($cache_user['num_hits'] + $cache_user['num_misses']) / (TIMENOW - $cache_user['start_time']))) . ' cache requests/second',
	'Hit Rate' 						=> vb_number_format((($cache_user['num_hits']) / (TIMENOW - $cache_user['start_time']))) . ' cache requests/second',
	'Miss Rate' 					=> vb_number_format((($cache_user['num_misses']) / (TIMENOW - $cache_user['start_time']))) . ' cache requests/second',
	'Insert Rate' 					=> vb_number_format((($cache_user['num_inserts']) / (TIMENOW - $cache_user['start_time']))) . ' cache requests/second',
	'Cache full count' 				=> vb_number_format($cache_user['expunges'])
);

print_table_start();
print_table_header('APC Cache Info', 2);
foreach ($stats as $key => $val)
{
	print_cells_row(array("<strong>$key</strong>", $val), 0, 0, -5, 'top', 0, 1);
}
print_table_footer(2, '', '', false);

Then see if you have any Cache full count values. If yes, boost your available APC memory via php.ini

 

[semprot]

At this moment "Cache full count" is 0. However thanks for the quick plugin

 

[Fillip H.]

In that case the only other thing I can think of is the possibility that you had a drop in visitors or something... I really don't know