topic Re: CPU utilization high in ArcGIS Enterprise Questions https://community.esri.com/t5/arcgis-enterprise-questions/cpu-utilization-high/m-p/203641#M7972 <HTML><HEAD></HEAD><BODY><P>How&nbsp; many services are you pushing? How many instances of each service? What OS? Are you using a web adapter? Https? IWA or GIS Token? Image Service cached? There are about 2 dozen architecture factors that seriously impact performance, but, all that aside, with just two "cores", I'm surprised you can even get ArcGIS Server to start. On a VM, I had to push it to 16 cores to see any stability. What type if hard drive? Is it a shared VHD where dozens of other Vm's are using the same HDD? You should choose clustering only as a last resort, and I really emphasize "last resort" (e.g ESRI tech support told you there is no other way your site is going to work unless in a cluster). Clustering means you have a shared config store, so every other round-robin request for your image service has to go over the network via SMB to the config store. Get rid of the cluster, and add the RAM/CPU resources to the single instance. Or....run two sites, one on each VM, one for vector data, and a dedicated one for image. But by all means, avoid clustering.</P></BODY></HTML> Thu, 03 Mar 2016 18:17:48 GMT ThomasColson 2016-03-03T18:17:48Z CPU utilization high https://community.esri.com/t5/arcgis-enterprise-questions/cpu-utilization-high/m-p/203640#M7971 <HTML><HEAD></HEAD><BODY><P>We're running our 10.3.1 ArcServer installation on two Hyper-V's that are clustered at the ArcServer level.&nbsp; We've pushed all of our imagery services to its own VM with 16gb of RAM and 2 virtual CPUs running at 2.5ghz each.&nbsp; Our RAM utilization is fine at around 40-45%, but our CPU utilization goes through the roof from time to time.&nbsp; I have one imagery service that takes between 45-55% of the CPU from time to time.&nbsp; The total CPU utilization will be around 95-98%.&nbsp; The only thing this VM is doing is running these services.&nbsp; Users are complaining that service is slow.&nbsp; I'm assuming (perhaps erroneously) that the speed users are experiencing is related to the high CPU usage.</P><P></P><P>I've googled around and all I can find is information to ArcServer 9.3 or 10.0.&nbsp; Can anyone give me any idea of what I might be able to do to fix this problem?&nbsp; Do I throw more virtual CPUs at it?</P></BODY></HTML> Wed, 02 Mar 2016 15:26:25 GMT https://community.esri.com/t5/arcgis-enterprise-questions/cpu-utilization-high/m-p/203640#M7971 FrankLaFone 2016-03-02T15:26:25Z Re: CPU utilization high https://community.esri.com/t5/arcgis-enterprise-questions/cpu-utilization-high/m-p/203641#M7972 <HTML><HEAD></HEAD><BODY><P>How&nbsp; many services are you pushing? How many instances of each service? What OS? Are you using a web adapter? Https? IWA or GIS Token? Image Service cached? There are about 2 dozen architecture factors that seriously impact performance, but, all that aside, with just two "cores", I'm surprised you can even get ArcGIS Server to start. On a VM, I had to push it to 16 cores to see any stability. What type if hard drive? Is it a shared VHD where dozens of other Vm's are using the same HDD? You should choose clustering only as a last resort, and I really emphasize "last resort" (e.g ESRI tech support told you there is no other way your site is going to work unless in a cluster). Clustering means you have a shared config store, so every other round-robin request for your image service has to go over the network via SMB to the config store. Get rid of the cluster, and add the RAM/CPU resources to the single instance. Or....run two sites, one on each VM, one for vector data, and a dedicated one for image. But by all means, avoid clustering.</P></BODY></HTML> Thu, 03 Mar 2016 18:17:48 GMT https://community.esri.com/t5/arcgis-enterprise-questions/cpu-utilization-high/m-p/203641#M7972 ThomasColson 2016-03-03T18:17:48Z