If you notice some server slowing down (IO/memory) and this server is running on VMware, then we strongly recommend you to install VMware-Tools - a suite of utilities that enhance the performance of VM guest operating system and improves its management: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=340
Check if they are installed and kernel modules are loaded, the vmci is the main one:
# lsmod | grep vm
vmci 80373 1 vsock
If you see no vmci in the output, then most probably they are not installed.
We do recommend installing them from source code using this article: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1018414
Click in VM menu > Guest > Install/Upgrade VMware tools (at least). After that their cdrom will be attached as /dev/cdrom . Mount it:
mkdir /mnt/cdrom mount /dev/cdrom /mnt/cdrom
Then install kernel headers and VMware-Tools:
yum install kernel-headers cd /mnt/cdrom/vmware-tools-distrib ./vmware-install.pl
Follow the wizard (pressing enter in most cases), make them enabled on startup.
Check if vmci exists in lsmod.
If you see tools installed but no module loaded - run the configuration from the command line:
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