>>> On 29.01.16 at 17:24, <cz...@bitdefender.com> wrote: > To investigate I compiled the unaltered domain.c & used the pahole tool > (part of dwarves package) to obtain the complete layout of the domain > structure (& its members). > What I obtained: > * sizeof(struct domain) is already = 4096 bytes (= PAGE_SIZE) > * sizeof(struct arch_domain) [x86] = sizeof(domain.arch) = 3328 > bytes (arch_domain is marked __cacheline_aligned, i.e. aligned to 128 bytes) > * sizeof(domain.arch.hvm_domain) = 2224 bytes > * sizeof(domain.arch.hvm_domain.pl_time) = 1088 bytes > > => overall, X86 timers-related information occupies the most. > > One could shrink the domain structure by transforming some of its fields > to pointers, e.g. I could transform the pl_time field into a pointer and > dynamically allocate its data when domain_create is called.
Sounds like a reasonable measure. I wasn't aware we're exactly on the boundary right now. Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
