Messages in this thread Patch in this message | | | From | Petr Holasek <> | Subject | [RFC][PATCH] add pagesize field to /proc/pid/numa_maps | Date | Tue, 21 Oct 2014 01:27:14 +0200 |
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There were some similar attempts to add vma's pagesize to numa_maps in the past, so I've distilled the most straightforward one - adding pagesize field expressing size in kbytes to each line. Although page size can be also obtained from smaps file, adding pagesize to numa_maps makes the interface more compact and easier to use without need for traversing other files.
New numa_maps output looks like that:
2aaaaac00000 default file=/dev/hugepages/hugepagefile huge pagesize=2097152 dirty=1 N0=1 7f302441a000 default file=/usr/lib64/libc-2.17.so pagesize=4096 mapped=65 mapmax=38 N0=65
Signed-off-by: Petr Holasek <pholasek@redhat.com> --- fs/proc/task_mmu.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 4e0388c..964c4de 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -1498,6 +1498,9 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid) if (!md->pages) goto out; + seq_puts(m, " pagesize="); + seq_printf(m, "%lu", vma_kernel_pagesize(vma)); + if (md->anon) seq_printf(m, " anon=%lu", md->anon); -- 1.9.3
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