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| author | Jonathan Helman <jonathan.helman@oracle.com> | 2018-03-19 15:28:49 -0700 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2018-05-23 03:14:40 +0300 |
| commit | b7b126442977dcfa5641e38b084bd13a0b366cff (patch) | |
| tree | 52b08e7d20235604254f9772f7c74159825a9c06 | |
| parent | 50a6fa8f939a3448967592e5136afcc063f9a25d (diff) | |
| download | qemu-b7b126442977dcfa5641e38b084bd13a0b366cff.zip qemu-b7b126442977dcfa5641e38b084bd13a0b366cff.tar.gz qemu-b7b126442977dcfa5641e38b084bd13a0b366cff.tar.bz2 | |
virtio-balloon: add hugetlb page allocation counts
qemu should read and report hugetlb page allocation
counts exported in the following kernel patch:
commit 4c3ca37c4a4394978fd0f005625f6064ed2b9a64
Author: Jonathan Helman <jonathan.helman@oracle.com>
Date: Mon Mar 19 11:00:35 2018 -0700
virtio_balloon: export hugetlb page allocation counts
Export the number of successful and failed hugetlb page
allocations via the virtio balloon driver. These 2 counts
come directly from the vm_events HTLB_BUDDY_PGALLOC and
HTLB_BUDDY_PGALLOC_FAIL.
Signed-off-by: Jonathan Helman <jonathan.helman@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
| -rw-r--r-- | docs/virtio-balloon-stats.txt | 2 | ||||
| -rw-r--r-- | hw/virtio/virtio-balloon.c | 2 | ||||
| -rw-r--r-- | include/standard-headers/linux/virtio_balloon.h | 4 |
3 files changed, 7 insertions, 1 deletions
diff --git a/docs/virtio-balloon-stats.txt b/docs/virtio-balloon-stats.txt index 7a66d25..9985e1d 100644 --- a/docs/virtio-balloon-stats.txt +++ b/docs/virtio-balloon-stats.txt @@ -34,6 +34,8 @@ which will return a dictionary containing: - stat-total-memory - stat-available-memory - stat-disk-caches + - stat-htlb-pgalloc + - stat-htlb-pgfail o A key named last-update, which contains the last stats update timestamp in seconds. Since this timestamp is generated by the host, diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c index f456cea..1f7a87f 100644 --- a/hw/virtio/virtio-balloon.c +++ b/hw/virtio/virtio-balloon.c @@ -52,6 +52,8 @@ static const char *balloon_stat_names[] = { [VIRTIO_BALLOON_S_MEMTOT] = "stat-total-memory", [VIRTIO_BALLOON_S_AVAIL] = "stat-available-memory", [VIRTIO_BALLOON_S_CACHES] = "stat-disk-caches", + [VIRTIO_BALLOON_S_HTLB_PGALLOC] = "stat-htlb-pgalloc", + [VIRTIO_BALLOON_S_HTLB_PGFAIL] = "stat-htlb-pgfail", [VIRTIO_BALLOON_S_NR] = NULL }; diff --git a/include/standard-headers/linux/virtio_balloon.h b/include/standard-headers/linux/virtio_balloon.h index 7b0a41b..e446805 100644 --- a/include/standard-headers/linux/virtio_balloon.h +++ b/include/standard-headers/linux/virtio_balloon.h @@ -53,7 +53,9 @@ struct virtio_balloon_config { #define VIRTIO_BALLOON_S_MEMTOT 5 /* Total amount of memory */ #define VIRTIO_BALLOON_S_AVAIL 6 /* Available memory as in /proc */ #define VIRTIO_BALLOON_S_CACHES 7 /* Disk caches */ -#define VIRTIO_BALLOON_S_NR 8 +#define VIRTIO_BALLOON_S_HTLB_PGALLOC 8 /* Hugetlb page allocations */ +#define VIRTIO_BALLOON_S_HTLB_PGFAIL 9 /* Hugetlb page allocation failures */ +#define VIRTIO_BALLOON_S_NR 10 /* * Memory statistics structure. |