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Full Discussion: MySQL Performance Problems
The Lounge What is on Your Mind? MySQL Performance Problems Post 303042001 by Neo on Wednesday 11th of December 2019 12:03:53 AM
Old 12-11-2019
Just shaved about 200ms from the mysql query used on the user badge page for each user by adding a field in the user database to store the total tag count for each user and moving that query to a daily cron file instead of updating this in real time.

Code:
<?php
$sql = "select userid, count(1)  as tagcount  FROM tagthread group by userid order by tagcount desc";
$taginfo = $vbulletin->db->query_read($sql);
while ($tag = $vbulletin->db->fetch_array($taginfo)) {
    $sql2 = "update user set tagcount = " . $tag['tagcount'] . " where userid = " . $tag['userid'];
    $vbulletin->db->query_write($sql2);
}

 

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semanage_user(3)					   Libsemanage API documentation					  semanage_user(3)

NAME
semanage_user - SELinux User Management API SYNOPSIS
#include <semanage/user_record.h> #include <semanage/users_policy.h> #include <semanage/users_local.h> This object contains properties associated with a SELinux user. Typically many Unix users are mapped to the same SELinux user. See seman- age_seuser(3) for overview of the Unix user API. For details on a specific function, see its manual page. Record API Overview semanage_user_create(3)- create a user semanage_user_free(3)- release resources for this user semanage_user_key_create(3)- create a key, which can be used to identify a user semanage_user_key_free(3)- release resources for this user key semanage_user_key_extract(3)- create a key matching this user semanage_user_clone(3)- create an identical user (deep-copy clone) semanage_user_compare(3)- compare this user to the provided key semanage_user_compare2(3)- compare this user to another Properties API Overview semanage_user_get_name(3)- return the name of this user semanage_user_set_name(3)- set the name of this user semanage_user_get_prefix(3)- return the labeling prefix for this user, used to control the contexts of user directories semanage_user_set_prefix(3)- set the labeling prefix for this user semanage_user_get_mlslevel(3)- return the default MLS level, which is assigned to this user at login time semanage_user_set_mlslevel(3)- set the default MLS level semanage_user_get_mlsrange(3)- return the range of valid MLS sensitivities and categories for this user semanage_user_set_mlsrange(3)- set the range of valid MLS sensitivities and categories for this user semanage_user_add_role(3)- add a role to the user's list of valid roles semanage_user_del_role(3)- remove a role from the user's list of valid roles semanage_user_has_role(3)- check if a role is valid for this user semanage_user_get_num_roles(3)- return the number of valid roles for this user semanage_user_get_roles(3)- return an array containing the roles for this user semanage_user_set_roles(3)- set the roles for this user Record Store API Overview semanage_user_modify_local(3)- add or update a user in the local store semanage_user_del_local(3)- delete a user from the local store semanage_user_exists(3)- check if a user is defined in the persistent policy semanage_user_exists_local(3)- check if a user is defined in the local store semanage_user_query(3)- query a user in the persistent policy semanage_user_query_local(3)- query a user in the local store semanage_user_count(3)- count the number of users defined in the persistent policy semanage_user_count_local(3)- count the number of users defined in the local store semanage_user_iterate(3)- execute a callback for each user in the persistent policy semanage_user_iterate_local(3)- execute a callback for each user in the local store semanage_user_list(3)- return an array containing all users in the persistent policy semanage_user_list_local(3)- return an array containing all users in the local store ivg2@cornell.edu 16 March 2006 semanage_user(3)
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