Howard - On Tuesday, November 20, 2012 2:05:26 PM UTC-6, Howard wrote: > > On 11/20/2012 01:42 PM, Chris McQuistion wrote: > > What's your disk subsystem with the new ESXi host? How much physical > > memory and CPU does the box have and how much have you designated to > > your VM's? > > > > Do you VMWare Tools installed on the Guest VM's? > > > > Chris > > > > 300GB of mirrored SAS drives on a 3ware RAID controller. > 16GB of physical memory with 8GB allocated to guest 1 and 4gb allocated > to guest 2. > Has one four-core CPU; guest 1 has "3 cores" allocated and guest 2 has > one. >
By allocated, do you mean guest 1 has 3 virtual cores and guest 2 has 1 virtual core to match the total of physical cores, or did you literally tether each virtual core to a corresponding physical core? I wouldn't think that it would make much a difference in your case since there _shouldn't_ be CPU contention, but it's generally a bad idea under ESXi (well, VMware in general). Also, do you necessarily need 3 virtual cores on guest 1? Resource allocation in regards to CPU cores is a bit counter-intuitive under VMware due to the manner in which instructions are scheduled for the physical cores. Again, with the setup you've described, it _shouldn't_ be an issue, but checking your CPU ready/wait metrics will tell if that's the case. > Top is showing 24k of swap used but current memory used is quite a bit > less than 8GB. > And yes, Tilghman, vm.swappiness=85. > > Reading up on VMWare Tools > VMware tools are always a good idea. Proper memory control (ballooning, etc.) as well as other features depend on the tools being installed. You can run a VM without them, but sometimes weird crap happens when you do. > > Howard > > I didn't see anyone mention this, but assuming the base hardware supports it, have you made sure that virtualization extensions and hyperthreading are turned on in the BIOS? If the hardware supports it, it will make a big difference in performance if it's not enabled. -Allen -- You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en
