From: Song Liu <songliubraving@fb.com>
To: <linux-mm@kvack.org>
Cc: <matthew.wilcox@oracle.com>, <kirill.shutemov@linux.intel.com>,
<kernel-team@fb.com>, <william.kucharski@oracle.com>,
<chad.mynhier@oracle.com>, <mike.kravetz@oracle.com>,
Song Liu <songliubraving@fb.com>
Subject: [PATCH v2 2/3] mm,thp: stats for file backed THP
Date: Fri, 14 Jun 2019 11:22:03 -0700 [thread overview]
Message-ID: <20190614182204.2673660-3-songliubraving@fb.com> (raw)
In-Reply-To: <20190614182204.2673660-1-songliubraving@fb.com>
In preparation for non-shmem THP, this patch adds two stats and exposes
them in /proc/meminfo
Signed-off-by: Song Liu <songliubraving@fb.com>
---
fs/proc/meminfo.c | 4 ++++
include/linux/mmzone.h | 2 ++
mm/vmstat.c | 2 ++
3 files changed, 8 insertions(+)
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 568d90e17c17..bac395fc11f9 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -136,6 +136,10 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
global_node_page_state(NR_SHMEM_THPS) * HPAGE_PMD_NR);
show_val_kb(m, "ShmemPmdMapped: ",
global_node_page_state(NR_SHMEM_PMDMAPPED) * HPAGE_PMD_NR);
+ show_val_kb(m, "FileHugePages: ",
+ global_node_page_state(NR_FILE_THPS) * HPAGE_PMD_NR);
+ show_val_kb(m, "FilePmdMapped: ",
+ global_node_page_state(NR_FILE_PMDMAPPED) * HPAGE_PMD_NR);
#endif
#ifdef CONFIG_CMA
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 70394cabaf4e..827f9b777938 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -234,6 +234,8 @@ enum node_stat_item {
NR_SHMEM, /* shmem pages (included tmpfs/GEM pages) */
NR_SHMEM_THPS,
NR_SHMEM_PMDMAPPED,
+ NR_FILE_THPS,
+ NR_FILE_PMDMAPPED,
NR_ANON_THPS,
NR_UNSTABLE_NFS, /* NFS unstable pages */
NR_VMSCAN_WRITE,
diff --git a/mm/vmstat.c b/mm/vmstat.c
index fd7e16ca6996..6afc892a148a 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1158,6 +1158,8 @@ const char * const vmstat_text[] = {
"nr_shmem",
"nr_shmem_hugepages",
"nr_shmem_pmdmapped",
+ "nr_file_hugepages",
+ "nr_file_pmdmapped",
"nr_anon_transparent_hugepages",
"nr_unstable",
"nr_vmscan_write",
--
2.17.1
next prev parent reply other threads:[~2019-06-14 18:22 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-14 18:22 [PATCH v2 0/3] Enable THP for text section of non-shmem files Song Liu
2019-06-14 18:22 ` [PATCH v2 1/3] mm: check compound_head(page)->mapping in filemap_fault() Song Liu
2019-06-17 14:59 ` Rik van Riel
2019-06-14 18:22 ` Song Liu [this message]
2019-06-17 15:00 ` [PATCH v2 2/3] mm,thp: stats for file backed THP Rik van Riel
2019-06-21 12:50 ` Kirill A. Shutemov
2019-06-21 14:09 ` Song Liu
2019-06-14 18:22 ` [PATCH v2 3/3] mm,thp: add read-only THP support for (non-shmem) FS Song Liu
2019-06-17 15:42 ` Rik van Riel
2019-06-21 12:58 ` Kirill A. Shutemov
2019-06-21 13:08 ` Song Liu
2019-06-21 13:11 ` Kirill A. Shutemov
2019-06-18 21:12 ` [PATCH v2 0/3] Enable THP for text section of non-shmem files Andrew Morton
2019-06-18 21:48 ` Song Liu
2019-06-20 1:13 ` Andrew Morton
2019-06-20 2:04 ` Song Liu
2019-06-19 6:26 ` Song Liu
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