Messages in this thread | | | Date | Fri, 21 Mar 2008 08:55:04 +0100 | From | Eric Dumazet <> | Subject | Re: [03/14] vmallocinfo: Support display of vcompound for a virtual compound page |
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Christoph Lameter a écrit : > Add another flag to the vmalloc subsystem to mark virtual compound pages. > > Signed-off-by: Christoph Lameter <clameter@sgi.com> > > --- > include/linux/vmalloc.h | 1 + > mm/vmalloc.c | 3 +++ > 2 files changed, 4 insertions(+) > > Index: linux-2.6.25-rc5-mm1/include/linux/vmalloc.h > =================================================================== > --- linux-2.6.25-rc5-mm1.orig/include/linux/vmalloc.h 2008-03-19 18:17:42.093443900 -0700 > +++ linux-2.6.25-rc5-mm1/include/linux/vmalloc.h 2008-03-19 18:27:20.150422445 -0700 > @@ -12,6 +12,7 @@ struct vm_area_struct; > #define VM_MAP 0x00000004 /* vmap()ed pages */ > #define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */ > #define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */ > +#define VM_VCOMPOUND 0x00000020 /* Page allocator fallback */ > /* bits [20..32] reserved for arch specific ioremap internals */ > > /* > Index: linux-2.6.25-rc5-mm1/mm/vmalloc.c > =================================================================== > --- linux-2.6.25-rc5-mm1.orig/mm/vmalloc.c 2008-03-19 18:18:02.689633934 -0700 > +++ linux-2.6.25-rc5-mm1/mm/vmalloc.c 2008-03-19 18:27:20.150422445 -0700 > @@ -974,6 +974,9 @@ static int s_show(struct seq_file *m, vo > if (v->flags & VM_VPAGES) > seq_printf(m, " vpages"); > > + if (v->flags & VM_VCOMPOUND) > + seq_printf(m, " vcompound"); > + > seq_putc(m, '\n'); > return 0; > } >
I would love to see NUMA information as well on vmallocinfo, but have currently no available time to prepare a patch.
Counters with numbers of pages per node would be great.
(like in /proc/pid/numa_maps)
N0=2 N1=2 N2=2 N3=2
This way we could check hashdist is working or not, since it depends on various numa policies :)
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