02-10-2012
You are having the standard Linux Newbie Memory Freakout. Cache memory counts as free memory.
Linux uses every spare bit of memory to cache all disk accesses, because memory which sits around doing nothing is useless. But cache will be recycled for other uses as needed. It's only sitting around as cache right now because it's not needed. Large amounts of cache are to be expected on an unloaded and idle system.
You want to have at least some cache, anyway. If you use so much memory that there's nothing left for cache, this is a problem -- disk access will become slow. The more cache you have, the more efficient disk access can become.
Do not, repeat, do not reboot your system, plug weird values into /proc/ to "flush the cache", and so forth. Everything is fine.
Last edited by Corona688; 02-10-2012 at 11:45 AM..
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LEARN ABOUT PHP
wincache_fcache_fileinfo
WINCACHE_FCACHE_FILEINFO(3) 1 WINCACHE_FCACHE_FILEINFO(3)
wincache_fcache_fileinfo - Retrieves information about files cached in the file cache
SYNOPSIS
array wincache_fcache_fileinfo ([bool $summaryonly = false])
DESCRIPTION
Retrieves information about file cache content and its usage.
PARAMETERS
o $summaryonly
- Controls whether the returned array will contain information about individual cache entries along with the file cache summary.
RETURN VALUES
Array of meta data about file cache or FALSE on failure
The array returned by this function contains the following elements:
o total_cache_uptime - total time in seconds that the file cache has been active
o total_file_count - total number of files that are currently in the file cache
o total_hit_count - number of times the files have been served from the file cache
o total_miss_count - number of times the files have not been found in the file cache
o file_entries - an array that contains the information about all the cached files:
o file_name - absolute file name of the cached file
o add_time - time in seconds since the file has been added to the file cache
o use_time - time in seconds since the file has been accessed in the file cache
o last_check - time in seconds since the file has been checked for modifications
o hit_count - number of times the file has been served from the cache
o file_size - size of the cached file in bytes
EXAMPLES
Example #1
A wincache_fcache_fileinfo(3) example
<pre>
<?php
print_r(wincache_fcache_fileinfo());
?>
</pre>
The above example will output:
Array
( [total_cache_uptime] => 3234
[total_file_count] => 5
[total_hit_count] => 0
[total_miss_count] => 1
[file_entries] => Array
(
[1] => Array
(
[file_name] => c:inetpubwwwrootcheckcache.php
[add_time] => 1
[use_time] => 0
[last_check] => 1
[hit_count] => 1
[file_size] => 2435
)
[2] => Array (...iterates for each cached file)
)
)
SEE ALSO
wincache_fcache_meminfo(3), wincache_ocache_fileinfo(3), wincache_ocache_meminfo(3), wincache_rplist_fileinfo(3), wincache_rplist_mem-
info(3), wincache_refresh_if_changed(3), wincache_ucache_meminfo(3), wincache_ucache_info(3), wincache_scache_info(3), wincache_scache_mem-
info(3).
PHP Documentation Group WINCACHE_FCACHE_FILEINFO(3)