Title: Performance issue with call_user_func() AtumListTable.php:820 Last modified: November 29, 2021 --- # Performance issue with call_user_func() AtumListTable.php:820 * Resolved [Chad Reitsma](https://wordpress.org/support/users/chadreitsma/) * (@chadreitsma) * [4 years, 6 months ago](https://wordpress.org/support/topic/performance-issue-with-call_user_func-atumlisttable-php820/) * Hey guys, * One of our clients is experiencing gateway timeouts on the Stock Central page, because of call_user_func() inside of /classes/components/AtumListTables/AtumListTable. php Line: 820 `echo call_user_func( array( apply_filters( "atum/list_table/column_source_object/ column_$column_name", $this, $item ), "column_$column_name" ), $item ); // phpcs: ignore WordPress.Security.EscapeOutput.OutputNotEscaped` * It looks like this is performing some intensive logic in combination with the Stock Central module, and it’s just taking too long, and timing out. * As a workaround we changed the “Per page” to 10 (originally 20), which kind of works, but it’s still quite slow. * I can improve performance by skipping over the columns that are hidden (continuing the for-loop before call_user_func() ) but these code-changes will obviously get overwritten if we ever update the plugin. I can’t pinpoint the exact function, it seems to be a combination of the functions that are run for the calculation column s, probably the Sales per day / Sales last 14 days, etc… * Hoping you guys can look into this and work on the performance issues in a future release. Viewing 5 replies - 1 through 5 (of 5 total) * Plugin Author [Salva Machi](https://wordpress.org/support/users/salvamb/) * (@salvamb) * [4 years, 6 months ago](https://wordpress.org/support/topic/performance-issue-with-call_user_func-atumlisttable-php820/#post-15116441) * Hi [@chadreitsma](https://wordpress.org/support/users/chadreitsma/) * It seems this issue is related to this other one: * [https://wordpress.org/support/topic/atum-stock-central-slow-load-and-slow-update-qty/](https://wordpress.org/support/topic/atum-stock-central-slow-load-and-slow-update-qty/) * We are currently investigating this issue as our first priority and we’ll release a new version when fixed. * Best Regards, Salva. * Thread Starter [Chad Reitsma](https://wordpress.org/support/users/chadreitsma/) * (@chadreitsma) * [4 years, 6 months ago](https://wordpress.org/support/topic/performance-issue-with-call_user_func-atumlisttable-php820/#post-15119547) * Hey Salva, * Sounds good. Here is a PHP-FPM slowlog in-case it helps, this is how I traced it to call_user_func() in AtumListTable.php * ``` [29-Nov-2021 15:35:58] [pool domain.ca] pid 8542 script_filename = /var/www/vhosts/domain.ca/httpdocs/wp-admin/admin.php [0x00007fa368014060] mysqli_query() /var/www/vhosts/domain.ca/httpdocs/wp-includes/wp-db.php:2056 [0x00007fa368013ff0] _do_query() /var/www/vhosts/domain.ca/httpdocs/wp-includes/wp-db.php:1945 [0x00007fa368013f10] query() /var/www/vhosts/domain.ca/httpdocs/wp-includes/wp-db.php:2581 [0x00007fa368013e30] get_var() /var/www/vhosts/domain.ca/httpdocs/wp-content/plugins/atum-stock-manager-for-woocommerce/classes/Inc/Helpers.php:666 [0x00007fa368013c30] get_sold_last_days() /var/www/vhosts/domain.ca/httpdocs/wp-content/plugins/atum-stock-manager-for-woocommerce/classes/StockCentral/Lists/ListTable.php:472 [0x00007fa368013bb0] column__sold_today() /var/www/vhosts/domain.ca/httpdocs/wp-content/plugins/atum-stock-manager-for-woocommerce/classes/Components/AtumListTables/AtumListTable.php:820 [0x00007fa368013b40] call_user_func() /var/www/vhosts/domain.ca/httpdocs/wp-content/plugins/atum-stock-manager-for-woocommerce/classes/Components/AtumListTables/AtumListTable.php:820 [0x00007fa3680139e0] single_row_columns() /var/www/vhosts/domain.ca/httpdocs/wp-content/plugins/atum-stock-manager-for-woocommerce/classes/Components/AtumListTables/AtumListTable.php:709 [0x00007fa368013930] single_expandable_row() /var/www/vhosts/domain.ca/httpdocs/wp-content/plugins/atum-stock-manager-for-woocommerce/classes/Components/AtumListTables/AtumListTable.php:675 [0x00007fa3680137e0] single_row() /var/www/vhosts/domain.ca/httpdocs/wp-admin/includes/class-wp-list-table.php:1379 [0x00007fa368013760] display_rows() /var/www/vhosts/domain.ca/httpdocs/wp-admin/includes/class-wp-list-table.php:1364 [0x00007fa3680136f0] display_rows_or_placeholder() /var/www/vhosts/domain.ca/httpdocs/wp-content/plugins/atum-stock-manager-for-woocommerce/classes/Components/AtumListTables/AtumListTable.php:3298 [0x00007fa368013640] display() /var/www/vhosts/domain.ca/httpdocs/wp-content/plugins/atum-stock-manager-for-woocommerce/views/list-tables/stock-central.php:88 ``` * Plugin Author [Salva Machi](https://wordpress.org/support/users/salvamb/) * (@salvamb) * [4 years, 6 months ago](https://wordpress.org/support/topic/performance-issue-with-call_user_func-atumlisttable-php820/#post-15120284) * Thanks for the info, [@chadreitsma](https://wordpress.org/support/users/chadreitsma/) 😉 * [SSVapes](https://wordpress.org/support/users/username12/) * (@username12) * [4 years, 6 months ago](https://wordpress.org/support/topic/performance-issue-with-call_user_func-atumlisttable-php820/#post-15123333) * I’m getting heavy resource use on PHP-FPM * Resource: Virtual Memory Size Exceeded: 530 > 512 (MB) Executable: /opt/cpanel/ ea-php7x/root/usr/sbin/php-fpm Command Line: php-fpm: pool domainname.com * IDK if it is related * Plugin Author [Salva Machi](https://wordpress.org/support/users/salvamb/) * (@salvamb) * [4 years, 6 months ago](https://wordpress.org/support/topic/performance-issue-with-call_user_func-atumlisttable-php820/#post-15124963) * Hi [@chadreitsma](https://wordpress.org/support/users/chadreitsma/) * We’ve just released a new version. When you can, let us know if it fixed your issue, please. * Best Regards, Salva. Viewing 5 replies - 1 through 5 (of 5 total) The topic ‘Performance issue with call_user_func() AtumListTable.php:820’ is closed to new replies. * ![](https://ps.w.org/atum-stock-manager-for-woocommerce/assets/icon.svg?rev=1634692) * [ATUM WooCommerce Inventory Management and Stock Tracking](https://wordpress.org/plugins/atum-stock-manager-for-woocommerce/) * [Frequently Asked Questions](https://wordpress.org/plugins/atum-stock-manager-for-woocommerce/#faq) * [Support Threads](https://wordpress.org/support/plugin/atum-stock-manager-for-woocommerce/) * [Active Topics](https://wordpress.org/support/plugin/atum-stock-manager-for-woocommerce/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/atum-stock-manager-for-woocommerce/unresolved/) * [Reviews](https://wordpress.org/support/plugin/atum-stock-manager-for-woocommerce/reviews/) * 5 replies * 3 participants * Last reply from: [Salva Machi](https://wordpress.org/support/users/salvamb/) * Last activity: [4 years, 6 months ago](https://wordpress.org/support/topic/performance-issue-with-call_user_func-atumlisttable-php820/#post-15124963) * Status: resolved