nginx a NIGHTMARE for me

[Amanat]

i was using Apache from last 3 years. never faced a single problem. Few days
ago i think to try Nginx. As i heard from mny people. Its very fast memory
efficient webserver. Trust me guys. Nginx can never be memory efficient.
Rather it consumes memory same like my mozilla. I never understand for what
reason it creates a garbage of disk cache for every request.
look at the pic 

http://i.imgur.com/pD7rEDe.png

Though i like some features of Nginx like header modification and error
444.

Apart from that Nginx is worst.

My Server configuration:
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                8
On-line CPU(s) list:   0-7
Thread(s) per core:    2
Core(s) per socket:    4
Socket(s):             1
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 58
Model name:            Intel(R) Xeon(R) CPU E3-1245 V2 @ 3.40GHz
Stepping:              9
CPU MHz:               1601.453
CPU max MHz:           3800.0000
CPU min MHz:           1600.0000
BogoMIPS:              6784.50
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              8192K
NUMA node0 CPU(s):     0-7


I can use 2 Gb ram whole day with apache and with Nginx even 32 gb ram works
only for 5 min.

If any of you have any suggestion to tweak nginx config. Please tell me.

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,269159,269159#msg-269159