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Highlight keywords and fix typo

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Penghao Cen 2017-09-21 20:07:59 +08:00
parent ba5113e6a7
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contributors/design-proposals/resource-management/hugepages.md
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@ -34,7 +34,7 @@ page size.
A huge page is a memory page that is larger than 4Ki. On x86_64 architectures, A huge page is a memory page that is larger than 4Ki. On x86_64 architectures,
there are two common huge page sizes: 2Mi and 1Gi. Sizes vary on other there are two common huge page sizes: 2Mi and 1Gi. Sizes vary on other
architectures, but the idea is the same. In order to use huge pages, architectures, but the idea is the same. In order to use huge pages,
application must write code that is aware of them. Transparent huge pages (THP) application must write code that is aware of them. Transparent Huge Pages (THP)
attempts to automate the management of huge pages without application knowledge, attempts to automate the management of huge pages without application knowledge,
but they have limitations. In particular, they are limited to 2Mi page sizes. but they have limitations. In particular, they are limited to 2Mi page sizes.
THP might lead to performance degradation on nodes with high memory utilization THP might lead to performance degradation on nodes with high memory utilization
@ -88,14 +88,14 @@ The proposal introduces huge pages as an Alpha feature.
It must be enabled via the `--feature-gates=HugePages=true` flag on pertinent It must be enabled via the `--feature-gates=HugePages=true` flag on pertinent
components pending graduation to Beta. components pending graduation to Beta.
## Node Specfication ## Node Specification
Huge pages cannot be overcommitted on a node. Huge pages cannot be overcommitted on a node.
A system may support multiple huge page sizes. It is assumed that most nodes A system may support multiple huge page sizes. It is assumed that most nodes
will be configured to primarily use the default huge page size as returned via will be configured to primarily use the default huge page size as returned via
`grep Hugepagesize /proc/meminfo`. This defaults to 2Mi on most Linux systems `grep Hugepagesize /proc/meminfo`. This defaults to 2Mi on most Linux systems
unless overriden by `default_hugepagesz=1g` in kernel boot parameters. unless overridden by `default_hugepagesz=1g` in kernel boot parameters.
For each supported huge page size, the node will advertise a resource of the For each supported huge page size, the node will advertise a resource of the
form `hugepages-<hugepagesize>`. On Linux, supported huge page sizes are form `hugepages-<hugepagesize>`. On Linux, supported huge page sizes are