Hello, I have several containers running on a host - ~10 One of them is running a MySQL database. Several of the others are running php code under apache that fetch datas from the database.
Host is using eth0, while my containers are on a bridge using eth1, and configured in macvlan bridge mode. Host runs SL6 with 2.6.32 RH kernel - Host is a VMWare ESX virtual machine for that matter. Ping latency between containers is at an average of 0.050 ms What i noted, is that one webapp were getting very slow... After investigating, the only thing that i could find, is that requests from containers are _slower_ than from any other hosts. See below: container1 ~ # time (echo "select * from testsuites;" | mysql -h container_mysql -u nmp -pxxx testlink) id details 42 (... cut only 25 entries anyway) real *0m0.875s* Time varies between 0.8 and 1.2s >From the host or another VM on the same network with the exact same request: real *0m0.022s* So that particular app that can loop over 19 requests takes sometimes up to 20s to display a page instead of ~0.5s from another host... Is there some sysctl/settings to tweak or it's just not relevant to make requests between containers on the same host?? Thanks, Olivier
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