high memory usage

Anoop Alias anoopalias01 at gmail.com
Thu Oct 25 14:34:36 UTC 2018


Hi,

On a shared server with a large number of accounts

################
sites-enabled]# grep  "server {"  *|wc -l
11877
################

The memory usage of nginx is very high
--------------------------------------------------------------------------

 Private  +   Shared  =  RAM used       Program
  1.6 GiB +   4.9 GiB =   6.5 GiB       nginx (3)
-----------------------------------------------------------------------------

# cat /proc/2068600/maps
00400000-006d6000 r-xp 00000000 09:7d 105657122
/usr/sbin/nginx
008d5000-008d6000 r--p 002d5000 09:7d 105657122
/usr/sbin/nginx
008d6000-008fe000 rw-p 002d6000 09:7d 105657122
/usr/sbin/nginx
008fe000-00921000 rw-p 00000000 00:00 0
0218b000-a2217000 rw-p 00000000 00:00 0
[heap]
a2217000-13fbc7000 rw-p 00000000 00:00 0
 [heap]


------------------------------------------------------------------------------------
pmap 2068600

2068600:   nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf
0000000000400000   2904K r-x-- nginx
00000000008d5000      4K r---- nginx
00000000008d6000    160K rw--- nginx
00000000008fe000    140K rw---   [ anon ]
000000000218b000 2622000K rw---   [ anon ]
00000000a2217000 2582208K rw---   [ anon ]
---------------------------------------------------------------------------------------

It looks like the heap is 2.6GB in size.

Is there a way to reduce this?

The configuration is not the problem ( which is why I am not attaching it)
as systems will a smaller number of vhosts using the same config consume
less ram




-- 
*Anoop P Alias*
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