8cf9acd577
We are facing memory pressure in gate testing. Apache is fairly large so tune its connection limits down to try and squeeze out more useable memory. THis should be fine for dev envs, also tlsproxy is not enabled by default so we can check that this tuning works well on a subset of jobs before making it default everywhere. Data comparisons done with gate-tempest-dsvm-neutron-full-ubuntu-xenial jobs. Old: http://logs.openstack.org/37/447037/2/check/gate-tempest-dsvm-neutron-full-ubuntu-xenial/721fc6f/logs/screen-peakmem_tracker.txt.gz PID %MEM RSS PPID TIME NLWP WCHAN COMMAND 20504 0.2 16660 19589 00:00:00 34 - /usr/sbin/apache2 -k start 20505 0.2 16600 19589 00:00:00 34 - /usr/sbin/apache2 -k start 20672 0.2 16600 19589 00:00:00 34 - /usr/sbin/apache2 -k start 20503 0.1 14388 19589 00:00:00 34 - /usr/sbin/apache2 -k start 19589 0.1 9964 1 00:00:00 1 - /usr/sbin/apache2 -k start Total RSS: 74212 New: http://logs.openstack.org/41/446741/1/check/gate-tempest-dsvm-neutron-full-ubuntu-xenial/fa4d2e6/logs/screen-peakmem_tracker.txt.gz PID %MEM RSS PPID TIME NLWP WCHAN COMMAND 8036 0.1 15316 8018 00:00:01 34 - /usr/sbin/apache2 -k start 8037 0.1 15228 8018 00:00:01 34 - /usr/sbin/apache2 -k start 8018 0.1 8584 1 00:00:00 1 - /usr/sbin/apache2 -k start Total RSS: 39128 Note RSS here is in KB. Total difference is 35084KB or about 34MB. Not the biggest change, but we seem to be functional and it almost halves the apache overhead. Change-Id: If82fa347db140021197a215113df4ce38fb4fd17
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