Performance Impact on Disabling the Kernel PTI?



  • Hi,
    I am using pfsense on a dedicated machine and it's working on a live system. If I disable the Meltdown workaround (kernel PTI), does the performance increase? Will it need reboot or is there a chance I may have stability problems on the system ?
    Thanks for the comments

    Enis K.


  • Rebel Alliance Global Moderator

    @enisk said in Performance Impact on Disabling the Kernel PTI?:

    If I disable the Meltdown workaround (kernel PTI),

    From my understanding you will have to reboot. As to performance increase, that is a prob sure but question is will you be able to notice it? if the system is struggling then its most likely undersized for what your wanting to do with it.



  • It's mostly less then %1 cpu load, but we are running on such an environment that any less latency is an important gain. So I am doing everything to increase the performance.

    What is the performance gain when I disable it? %10?
    and the risk that something may go wrong, such as not a successful reboot?


 

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