Why drop caches in Linux?
You are 100% correct. It is not a good practice to free up RAM. This is likely an example of cargo cult system administration.
memory
Exec wp query in slow motion to avoid memory error?
It appears that you’re trying to get the latest 15 posts where the meta key is not equal to ‘None’. Instead of loading all the posts into memory and then looping through to see if the meta value is not ‘None’, you could use the meta_query parameter. $args = [ ‘post_type’ => ‘post’, ‘orderby’ => … Read more
PHP Warning: include(): Unable to allocate memory for pool
Does this topic help (it appears to be referencing the items you are looking at currently) https://stackoverflow.com/questions/3723316/what-is-causing-unable-to-allocate-memory-for-pool-in-php ?
What does Virtual memory size in top mean?
Virtual memory isn’t even necessarily memory. For example, if a process memory-maps a large file, the file is actually stored on disk, but it still takes up “address space” in the process. Address space (ie. virtual memory in the process list) doesn’t cost anything; it’s not real. What’s real is the RSS (RES) column, which … Read more
Meaning of the buffers/cache line in the output of free
Meaning of the values The first line means: total: Your total (physical) RAM (excluding a small bit that the kernel permanently reserves for itself at startup); that’s why it shows ca. 11.7 GiB , and not 12 GiB, which you probably have. used: memory in use by the OS. free: memory not in use. shared … Read more
Any benefit or detriment from removing a pagefile on an 8 GB RAM machine?
TL;DR version: Let Windows handle your memory/pagefile settings. The people at MS have spent a lot more hours thinking about these issues than most of us sysadmins. Many people seem to assume that Windows pushes data into the pagefile on demand. EG: something wants a lot of memory, and there is not enough RAM to … Read more
How to display or print WordPress memory limit and WordPress max memory limit
Resolved via this functions as suggested by Rup wp_is_ini_value_changeable( ‘memory_limit’ ) source link
WordPress hit memory limit but not from the server
A server has to serve lots of requests at the same time, and to prevent a PHP request running out of control it gives them 2 limits. Time, and memory. If it takes 2 hours to generate a page request, something has gone wrong. If your request requires endless amounts of memory, something else has … Read more
Is there a maximum length to a WordPress Page?
I don’t believe WordPress itself has a max size. However, the database behind it has a max length that the wp_posts.post_content field can be. If we look in wp-admin/includes/schema.php, we can see the SQL used to create the wp_posts table: CREATE TABLE $wpdb->posts ( ID bigint(20) unsigned NOT NULL auto_increment, post_author bigint(20) unsigned NOT NULL … Read more
Memory usage issue in WordPress 3.x
I had a similar issue on my WP site, I think it was actually a plugin causing a problem, quite possibly a caching one… Couple of questions: What is it you are trying to do when the error appears? What plugins do you have active?