How can one optimize kernel parameters to enhance performance?
- Thread starter freerdp
- Start date
Using kernel parameters is usually targeted at quite specific issues. They could about booting, graphics, networking, power management, devices, the cpus, the memory and numerous other aspects. I guess the first port of call would be to peruse the kernel documents on kernel parameters to gain a sense of what they can apply to and manipulate. See here:
There are many kernel parameters that are undocumented, especially those which apply to particular software and hardware that either hasn't made into the kernel docs for one reason or another, or are specific to developments that are on-going or at the frontier. Parameters in these latter cases are often found in developer's or user's mailing lists or forums, but not always.
Given those considerations the idea to "optimize kernel parameters to enhance performance" doesn't look to have a simple overall answer. Rather, there'd likely be a more specific answer if the performance of one or more particular aspects of functioning were identified.
There are many kernel parameters that are undocumented, especially those which apply to particular software and hardware that either hasn't made into the kernel docs for one reason or another, or are specific to developments that are on-going or at the frontier. Parameters in these latter cases are often found in developer's or user's mailing lists or forums, but not always.
Given those considerations the idea to "optimize kernel parameters to enhance performance" doesn't look to have a simple overall answer. Rather, there'd likely be a more specific answer if the performance of one or more particular aspects of functioning were identified.
Optimizing RHEL 9 for Real Time for low latency operation Red Hat Enterprise Linux for Real Time 9 | Red Hat Customer Portal
Tune your workstations on the RHEL for Real Time kernel to achieve consistently low latency and a predictable response time on latency-sensitive applications. Perform real-time kernel tuning by managing system resources, measuring latency between events, and recording latency for analysis on...
Optimising kernel configuration options, such as in the SCHED configuration options mentioned in the first link in post #2 by @f33dm3bits, is likely to be a more effective approach to optimisation compared with the sole use of kernel parameters, so perhaps that's worth considering in the optimisation stakes. That kernel configuration approach however, involves building kernels rather than just adding parameters to existing or default kernels. Using relevant kernel parameters with such optimised built kernels sounds like a more useful approach for optimisation.
Aristarchus
Member
Yes, you can. I assume that you have either
https://cdn.kernel.org/pub/linux/kernel/projects/rt/
or
https://github.com/xanmod/linux/releases
or your distribution provides rt sources and that you did compile custom kernel before. If not, appending kernel settings in grub will not help much alone.
