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https://xmlandmore.blogspot.com/2012/04/how-to-test-large-page-support-on-your.html
Apr 05, 2012 · Enabling large page support on Linux systems can give a significant boost to Java performance. This is especially true for Java applications with large datasets or running with large heap sizes [1]. In this article, we will show you how to test:
https://access.redhat.com/documentation/en-us/jboss_enterprise_application_platform/5/html/performance_tuning_guide/sect-performance_tuning_guide-java_virtual_machine_tuning-large_page_memory
Large memory pages are pages of memory which are significantly larger than 4 kb, usually 2 Mb. In some instances it's configurable, from 2MB to 256MB. For the systems used in the tests for this book, the page size is 2MB. With 2MB pages, the number of pages for a …
https://docs.oracle.com/cd/E11882_01/server.112/e10839/appi_vlm.htm
G Very Large Memory and HugePages. ... Red Hat Enterprise Linux 5/ Oracle Linux 5 and Red Hat Enterprise Linux 6/ Oracle Linux 6 does not support the hugemem kernel. It supports a PAE kernel that can be used to implement Very Large Memory (VLM) as …
https://www.oracle.com/technetwork/java/javase/tech/largememory-jsp-137182.html
Beginning with Java SE 5.0 there is a cross-platform flag for requesting large memory pages: -XX:+UseLargePages (on by default for Solaris, off by default for Windows and Linux). The goal of large page support is to optimize processor Translation-Lookaside Buffers.
https://www.ibm.com/support/knowledgecenter/en/SSYKE2_8.0.0/com.ibm.java.vm.80.doc/docs/j9_configure_large_page.html
Where large page support is available, the default size for the object heap and the code cache depends on the architecture: Linux on x-86 and AMD64/EM64T: 2 MB large pages; Linux on IBM Z®: 1 MB large pages; On other architectures, the JVM uses the default operating system page size.
https://docs.microsoft.com/en-us/windows/win32/memory/large-page-support
Large-Page Support. 05/31/2018; 2 minutes to read; In this article. Large-page support enables server applications to establish large-page memory regions, which is particularly useful on 64-bit Windows. Each large-page translation uses a single translation buffer inside the CPU.
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/5/html/tuning_and_optimizing_red_hat_enterprise_linux_for_oracle_9i_and_10g_databases/sect-oracle_9i_and_10g_tuning_guide-large_memory_optimization_big_pages_and_huge_pages-configuring_huge_pages_in_red_hat_enterprise_linux_4_or_5
The memlock parameter specifies how much memory the oracle user can lock into its address space. Note that Huge Pages are locked in physical memory. The memlock setting is specified in KB and must match the memory size of the number of Huge Pages that Oracle should be able to allocate.
https://www.suse.com/support/kb/doc/?id=7021211
Memory, I/O and DefaultTasksMax related considerations for SLES for SAP servers with huge memory. This document (7021211) is provided subject to the disclaimer at the end of this document. Environment
https://en.wikipedia.org/wiki/Physical_Address_Extension
The Linux kernel includes full PAE-mode support starting with version 2.3.23, in 1999 enabling access of up to 64 GB of memory on 32-bit machines. A PAE-enabled Linux kernel requires that the CPU also support PAE. The Linux kernel supports PAE as a build option and major distributions provide a PAE kernel either as the default or as an option.
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