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authorChristian Ehrhardt <christian.ehrhardt@canonical.com>2016-09-12 12:27:45 +0200
committerChristian Ehrhardt <christian.ehrhardt@canonical.com>2016-09-12 12:27:45 +0200
commit36349293f4553e87c9ae17960f177c59843ae884 (patch)
treeb9089d2dff9e1b9ad015f38e62cd0c709367f01b
parentc8d650a3535d38e3ef9012616e137dbd30d60d78 (diff)
runtime: add 16M hugepages to config and init
ppc64el has 16M huge pages so they are added to the config and init scripts. Along that it became obvious that the comment in the conf should be tweaked at least a bit to be more readable. Change-Id: Ic97f20f17203b0a423439f7a6323879e25c47886 Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
-rwxr-xr-xdebian/dpdk-init4
-rw-r--r--debian/dpdk.conf10
2 files changed, 12 insertions, 2 deletions
diff --git a/debian/dpdk-init b/debian/dpdk-init
index 2872e498..103488ed 100755
--- a/debian/dpdk-init
+++ b/debian/dpdk-init
@@ -124,6 +124,9 @@ mount_hugetlbfs() {
if [ -n "${NR_2M_PAGES}" -a -z "$(get_hugetlbfs_mountpoint '2M')" ]; then
_mount_hugetlbfs 2M
fi
+ if [ -n "${NR_16M_PAGES}" -a -z "$(get_hugetlbfs_mountpoint '16M')" ]; then
+ _mount_hugetlbfs 16M
+ fi
if [ -n "${NR_1G_PAGES}" -a -z "$(get_hugetlbfs_mountpoint '1G')" ]; then
_mount_hugetlbfs 1G
fi
@@ -166,6 +169,7 @@ setup_hugepages() {
. /etc/dpdk/dpdk.conf
_setup_hugepages "hugepages-2048kB" "$NR_2M_PAGES"
+ _setup_hugepages "hugepages-16384kB" "$NR_16M_PAGES"
_setup_hugepages "hugepages-1048576kB" "$NR_1G_PAGES"
# dpdk uses 2*#hugepages mappings, increase for huge systems LP #1507921
diff --git a/debian/dpdk.conf b/debian/dpdk.conf
index fb4572d0..a5aea865 100644
--- a/debian/dpdk.conf
+++ b/debian/dpdk.conf
@@ -2,16 +2,22 @@
# The number of 2M hugepages to reserve on system boot
#
# Default is 0
-# To e.g. let it reserve 64x 2M Hugepages set:
+# To e.g. let it reserve 128M via 64x 2M Hugepages set:
# NR_2M_PAGES=64
#
# The number of 1G hugepages to reserve on system boot
#
# Default is 0
-# To e.g. let it reserve 2x 1G Hugepages set:
+# To e.g. let it reserve 2G via 2x 1G Hugepages set:
# NR_1G_PAGES=2
+# The number of 16M hugepages to reserve, supported e.g. on ppc64el
+#
+# Default is 0
+# To e.g. let it reserve 512M via 32x 16M Hugepages set:
+# NR_16M_PAGES=32
+
#
# Dropping slab and pagecache can help to successfully allocate hugepages,
# especially later in the lifecycle of a system.