swapiness value to be set for high load nginx server
Igor A. Ippolitov
iippolitov at nginx.com
Fri Feb 17 09:09:41 UTC 2017
I would suggest disabling swap at all. With 1.5Tb of RAM I doubt you
You can try finding out what is swapped by `smem` utility. May be you
can live we those files swapped out of memory.
Anyway, I doubt swappiness tuning will help you.
Look through: https://www.kernel.org/doc/Documentation/sysctl/vm.txt
Set swappiness to 0.
On 16.02.2017 08:40, omkar_jadhav_20 wrote:
> We are using nginx/1.10.2 as web server on centos and redhat Linux 7.2 OS.
> We are getting issues of getting our SWAP fully utilized even though we have
> free memory , vm.swapiness is kept as default i.e. 60.
> below are memory details for your reference :
> # free -g
> total used free shared buff/cache
> Mem: 1511 32 3 361 1475
> Swap: 199 199 0
> Please suggest method by which we can avoid swap full scenario. also let us
> know what should be vm.swapiness value for high load nginx web server. Also
> let us know any other sysctl parameters to improve nginx performance.
> Posted at Nginx Forum: https://forum.nginx.org/read.php?2,272446,272446#msg-272446
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