scache_srvstats
Description
array scache_srvstats(resource session)
array $SCacheConnection->srvstats()
scache_srvstats returns statistics from scached backend if allowed by backends config.
Parameters
session
Return values
Array containing returned data or FALSE on failure.
In case of failure, error codes resolvable by scache_lasterr is one of below :
- SCERR_NO_SESSION Connected session does not exist or has been expired. Connection is not valid any more.
- SCERR_NOT_CONNECTED Connection to backend is broken and cannot be reconnected.
Notes
Scached backend's counters are internally 64bit counters. To express them somehow also with 32bit php they are returned as floats, which may lead on funny numbers after they become large enough.
Examples
<?php
/* get connection */
$session = scache_reset('MyEasilyGuessableSecret');
print_r(scache_srvstats($session));
/* ..will print */
Array
(
[SERVER] => Array
(
[sessiontable_max] => 20007
[mallocs_allocated] => 0
[mallocs_freed] => 0
[mallocs_total] => 0
[req_count_success] => 1613883
[req_count_invalid] => 300002
[req_count_unknown] => 0
[session_creates] => 20033
[session_reuses] => 22
[session_destroys] => 3
[session_expires] => 0
[session_clears] => 20025
[session_hit_by_idx] => 1863288
[session_miss_by_idx] => 0
[session_miss_by_search] => 20011
[session_secret_mismatches] => 2
[all_cache_hits] => 20002
[all_cache_misses] => 9999
[all_cache_adds] => 10001
[all_cache_dels] => 9999
[all_cache_expires] => 0
[io_requests] => 2878553
[io_bytes_read] => 212626648
[io_bytes_written] => 50601295
[io_socks_accepted] => 571
[io_socks_accept_fails] => 0
[io_socks_closed] => 0
[io_polls] => 1925025
[req_t_getopts] => 0
[req_t_setopts] => 1
[req_t_srvstats] => 1
[req_t_adds] => 2
[req_t_sets] => 1323915
[req_t_replaces] => 2
[req_t_unsets] => 66155
[req_t_stats] => 200002
[req_t_gets] => 897916
[req_t_shadds] => 0
[req_t_shsets] => 0
[req_t_shreplaces] => 0
[req_t_shunsets] => 0
[req_t_shstats] => 0
[req_t_shgets] => 0
[req_t_chgets] => 30001
[req_t_chputs] => 10001
[req_t_chclears] => 9999
[req_t_vadds] => 50000
[req_t_vsubs] => 50000
[req_t_vgets] => 100000
[req_t_vsets] => 100001
[req_t_vunsets] => 0
[req_t_shdlrgets] => 0
[req_t_shdlrputs] => 0
[req_t_shdlrdrops] => 0
[req_t_creates] => 20554
[req_t_drops] => 20001
[req_t_nones] => 0
[req_t_unknowns] => 0
[wblock_allocs] => 5720358
[trees_created] => 821964
[trees_freed] => 821950
[trees_out] => 14
[tree_nodes_created] => 1303965
[tree_nodes_freed] => 1233950
[tree_nodes_out] => 70015
[memq16_out] => 150027
[memq16_total] => 14391862
[memq16_allocs] => 14391862
[memq32_out] => 8
[memq32_total] => 24367
[memq32_allocs] => 24367
[memq64_out] => 40014
[memq64_total] => 46111
[memq64_allocs] => 46111
[memq128_out] => 2
[memq128_total] => 5181
[memq128_allocs] => 5181
[memq256_out] => 0
[memq256_total] => 29494
[memq256_allocs] => 29494
[memq512_out] => 0
[memq512_total] => 38250
[memq512_allocs] => 38250
[memq1024_out] => 0
[memq1024_total] => 0
[memq1024_allocs] => 0
)
[PARTITION] => Array
(
[allow_lvals] => 1
[allow_stats] => 1
[allow_cache] => 1
[allow_shared] => 1
[allow_session] => 1
[cache_hits] => 20002
[cache_misses] => 9999
[cache_adds] => 10001
[cache_dels] => 9999
[cache_expires] => 0
[cache_max] => 16777216
[memory_allocated] => 0
[memory_limit] => 1099511627776
[nodes_allocated] => 8
[nodes_limit] => 1099511627776
)
[SESSION] => Array
(
[index] => 2
[expires] => 1314947998
[maxidle] => 1800
[nodes_allocated] => 1
[memory_allocated] => 0
)
)
?>