Different kernel flavors (UP, SMP, ENTERPRISE, ENTNOSPLIT)

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OpenVZ project releases several different precompiled kernels for each version. Which kernel to choose depends on what hardware do you have. The table below describes the cases when it is better to use each of these kernels.

Kernel flavors list
Kernel type Description Hardware Use case
UP uniprocessor up to 4GB of RAM
SMP symmetric multiprocessor up to 4 GB of RAM 10-20 VPSs
entnosplit SMP + PAE support up to 64 GB of RAM 10-30 VPSs
enterprise SMP + PAE support + 4/4GB split up to 64 GB of RAM >20-30 VPSs


These kernels are optimized for these types of hardware configurations and usage scenarios, so choosing the right kernel can help to boost performance by about 5 to 15 per cent.

Yellowpin.svg Note: Use rpm -ihv command for ovzkernel RPM installation. Please do not use the rpm -Uhv command to install the kernel, otherwise all the previously installed kernels may be removed from your system.
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