Editing Different kernel flavors (UP, SMP, ENTERPRISE, ENTNOSPLIT)
Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.
The edit can be undone.
Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision | Your text | ||
Line 1: | Line 1: | ||
− | + | The version of a kernel you need depends on your server hardware. | |
− | + | The table below describes the cases when it is better to use each of these kernels: | |
− | + | {| border="1" | |
− | + | |+ Kernel flavors list | |
− | + | ! Kernel type !! Hardware !! Use case | |
− | |||
− | |||
− | |||
− | |+ | ||
− | ! Kernel type | ||
|- | |- | ||
− | ! | + | ! UP (uniprocessor) |
− | + | | up to 4GB of RAM || - | |
− | | up to 4GB of RAM | ||
− | | | ||
|- | |- | ||
− | ! | + | ! SMP (symmetric multiprocessor) |
− | |||
| up to 4 GB of RAM | | up to 4 GB of RAM | ||
− | | 10-20 | + | | 10-20 VPSs |
|- | |- | ||
− | ! | + | ! entnosplit (SMP + PAE support) |
− | |||
| up to 64 GB of RAM | | up to 64 GB of RAM | ||
− | | 10-30 | + | | 10-30 VPSs |
|- | |- | ||
− | ! | + | ! enterprise (SMP + PAE support + 4/4GB split) |
− | |||
| up to 64 GB of RAM | | up to 64 GB of RAM | ||
− | | >20 | + | | >20-30 VPSs |
|} | |} | ||
These kernels are optimized for these types of hardware configurations and usage scenarios, | These kernels are optimized for these types of hardware configurations and usage scenarios, | ||
− | so choosing the right kernel can help | + | so choosing the right kernel can help performance for 5-15%. |
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | + | 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. |