On 3/11/21 10:00 AM, Bodeddula, Balasubramaniam wrote: > Hey, thanks for the testing steps. > > I tried applying these patches on 5.11 source tree. These patches were > applied on top of the x86 patch, which worked fine. But in this case we don't > see the same improvements in our testing. We made sure we set > CONFIG_HUGETLB_PAGE_FREE_VMEMMAP=y in our .config file. > > Are we missing any more configuration settings to get this patch to work on > ARM? Can you please help with general troubleshooting steps to debug what > could be going wrong. >
Are you specifying 'hugetlb_free_vmemmap=on' on the kernel command line? This feature is only enabled if you 'opt in' via the command line option. -- Mike Kravetz
