Hi all! I just installed LEMP (Nginx, PHP-FPM, MySQL) on Ubuntu 14 and Wordpress in my droplet of 512 mb ram. As i can see in "top" i consume almost memory (90%)
KiB Mem: 501880 total, 484296 used, 17584 free, 13436 buffers
KiB Swap: 0 total, 0 used, 0 free. 345056 cached Mem
Can it be Ubuntu? What linux distribution uses less ram?
(I have not installed plugins or web in wordpress only the installation, I have no views)
Thanks!!
The stat that really shows what's going on here is the 345056 cached Mem That accounts for the vast majority of your used memory. The Linux kernel will use any available memory for disk caching, unless it's required by a running program. If needed by a program, the memory will be freed up. From the site Linux Ate My RAM:
Why does top and free say all my ram is used if it isn't?
This is just a misunderstanding of terms. Both you and Linux agree that memory taken by applications is "used", while memory that isn't used for anything is "free".
You would call that "free", but Linux calls it "used".
Memory that is You'd call it Linux calls it taken by applications Used Used available for applications, and used for something Free Used not used for anything Free Free This "something" is what top and free calls "buffers" and "cached". Since your and Linux's terminology differs, you think you are low on ram when you're not.
Hi asb :) , thank you very much for this information.
I do not care then!
No problem! It's something that trips up a lot of people. That's why there's a website devoted to the topic!
By the way, follow the guide, which says deploy x86 platform if you are running 2GB or less RAM.. That is suppose to consume less RAM..