Messages in this thread Patch in this message | | | Subject | [PATCH] smaps: account swap entries | From | Peter Zijlstra <> | Date | Wed, 26 Mar 2008 16:28:24 +0100 |
| |
Subject: smaps: account swap entries
Show the amount of swap for each vma. This can be used to see where all the swap goes.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> --- fs/proc/task_mmu.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)
Index: linux-2.6/fs/proc/task_mmu.c =================================================================== --- linux-2.6.orig/fs/proc/task_mmu.c +++ linux-2.6/fs/proc/task_mmu.c @@ -313,6 +313,7 @@ struct mem_size_stats unsigned long private_clean; unsigned long private_dirty; unsigned long referenced; + unsigned long swap; u64 pss; }; @@ -329,6 +330,12 @@ static int smaps_pte_range(pmd_t *pmd, u pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl); for (; addr != end; pte++, addr += PAGE_SIZE) { ptent = *pte; + + if (is_swap_pte(ptent)) { + mss->swap += PAGE_SIZE; + continue; + } + if (!pte_present(ptent)) continue; @@ -387,7 +394,8 @@ static int show_smap(struct seq_file *m, "Shared_Dirty: %8lu kB\n" "Private_Clean: %8lu kB\n" "Private_Dirty: %8lu kB\n" - "Referenced: %8lu kB\n", + "Referenced: %8lu kB\n" + "Swap: %8lu kB\n", (vma->vm_end - vma->vm_start) >> 10, mss.resident >> 10, (unsigned long)(mss.pss >> (10 + PSS_SHIFT)), @@ -395,7 +403,8 @@ static int show_smap(struct seq_file *m, mss.shared_dirty >> 10, mss.private_clean >> 10, mss.private_dirty >> 10, - mss.referenced >> 10); + mss.referenced >> 10, + mss.swap >> 10); return ret; }
| |