I have noticed now for about a month or so that when an avatar arrives on a region, the simulator memory usage skyrockets. Usually the idle memory usage has been 200MB or so for a region with no prims at all on it. Just the terrain with nothing added. Now the same region will skyrocket to over 1.5MB when an avatar arrives, then gradually decrees a small amount once the region has no avatars on it.
SIM PING goes nuts on all my regions when an avatar arrives and lag usually becomes very noticeable. I am running Verizon FiOS with a solid 50/50MB data rate. I have been running my regions for several years now using “monit” to monitor them and have used the memory setting of 1.3GB as a point to indicate there might be some kind of memory issue and to restart the region. About a month ago all my regions started doing these restarts because of memory usage exceeding that value. I now have them set to trip at 2.5GB and yet they still will occasionally reach that memory limit. What the heck changed in opensim that has caused memory usage to skyrocket when an avatar arrives and why does it now drop back to a reasonable level? Did I miss some setting change that was incorporated in opensim? The same is true for the CPU usage. I never saw the kind of CPU usage that the current version of opensim is using. Usually a region will idle with no avatars on it between 0.2-1.3% of CPU. Now they will idle somewhat higher than that but when an avatar arrives the CPU will shoot up to in the 5-10% range with some times going as high as 50%. I run AMD 4 and 8 core servers all with 8GB of ram using Fedora 19, 20 and 21. The server configurations have been consistent. Is this the new normal for opensim? Tom
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