Messages in this thread | | | Date | Thu, 13 Sep 2018 02:02:12 +0300 | From | Alexey Dobriyan <> | Subject | Re: [RFC PATCH] Add /proc/<pid>/numa_vamaps for numa node information |
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> The /proc/pid/numa_vamaps shows mapped address ranges to numa node id > from where the physical pages are allocated.
All these files make the problem with useless dentry and /proc/*/* inode instantiations worse (unlike top level /proc/* files which are tolerable).
> +address-range numa-node-id > + > +00400000-00410000 N1 > +00410000-0047f000 N0 > +0047f000-00480000 N2 > +00480000-00481000 - > +00481000-004a0000 N0 > +004a0000-004a2000 - > +004a2000-004aa000 N2 > +004aa000-004ad000 N0 > +004ad000-004ae000 -
'N' is useless data.
Parsing with awk won't work because field #3 is separated with space but field #2 with '-'.
%08lx-%08lx kind of sucks: 32-bit get aligned data so parsing can be faster by pointing to &p[8+1] but not on 64-bit. If scanf("%lx-%lx") is used then leading zeroes are useless.
Text is harder than it looks. Please in the name of everything holy add new honest system call.
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