Hi, I've upgraded haproxy from 1.5.18 to 1.6.9 and perplexed to see huge drop in memory utilisation (1.5.18 almost consuming 4x more RAM). Would like to understand whether it's due to certain improvements/bug fixes (I've glanced through change log but didn't notice anything significant in this context) or due to something which might be deteriorating my user's experience here and command deeper look?
Putting stats here from two servers (both are same r3.xlarge instance type in AWS): Server 1: root@ip-10-0-7-129:~# haproxy -v HA-Proxy version 1.5.18 2016/05/10 Copyright 2000-2016 Willy Tarreau <[email protected]> root@ip-10-0-7-129:~# echo "show info" | socat stdio /var/run/haproxy.socket | egrep "CurrConns|CurrSslConns" CurrConns: 171873 CurrSslConns: 26128 root@ip-10-0-7-129:~# free -g total used free shared buffers cached Mem: 29 12 17 0 0 0 -/+ buffers/cache: 11 18 Swap: 0 0 0 root@ip-10-0-7-129:~# ps -ef | grep [h]aproxy haproxy 20869 1 45 Nov02 ? 21:07:14 /usr/local/sbin/haproxy -f /etc/haproxy/haproxy.cfg -D -p /var/run/haproxy.pid root@ip-10-0-7-129:~# uname -a Linux ip-10-0-7-129 3.19.0-69-generic #77~14.04.1-Ubuntu SMP Tue Aug 30 01:29:21 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux Server 2 : root@ip-10-0-7-205:~# haproxy -v HA-Proxy version 1.6.9 2016/08/30 Copyright 2000-2016 Willy Tarreau <[email protected]> root@ip-10-0-7-205:~# echo "show info" | socat stdio /var/run/haproxy.socket | egrep "CurrConns|CurrSslConns" CurrConns: 172815 CurrSslConns: 26321 root@ip-10-0-7-205:~# free -g total used free shared buffers cached Mem: 29 3 26 0 0 0 -/+ buffers/cache: 3 26 Swap: 0 0 0 root@ip-10-0-7-205:~# ps -ef | grep [h]aproxy haproxy 21785 1 50 Nov03 ? 13:55:30 /usr/local/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid -D -sf 28197 root@ip-10-0-7-205:~# uname -a Linux ip-10-0-7-205 3.19.0-69-generic #77~14.04.1-Ubuntu SMP Tue Aug 30 01:29:21 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux haproxy is compiled using following command in both of instances: make TARGET=linux2628 CPU=native USE_STATIC_PCRE=1 ADDLIB=-lz USE_OPENSSL=1 DLMALLOC_SRC=/home/ubuntu/malloc.c Any insights will be highly appreciated. Thanks
