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8322098: os::Linux::print_system_memory_info enhance the THP output w…
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…ith /sys/kernel/mm/transparent_hugepage/hpage_pmd_size

Backport-of: b31454e36234091c3827c3b4d07f62345cb0cee4
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MBaesken committed Jan 12, 2024
1 parent 4c8b839 commit 3257d9d
Showing 1 changed file with 2 additions and 0 deletions.
2 changes: 2 additions & 0 deletions src/hotspot/os/linux/os_linux.cpp
Expand Up @@ -2215,6 +2215,8 @@ void os::Linux::print_system_memory_info(outputStream* st) {
// https://www.kernel.org/doc/Documentation/vm/transhuge.txt
_print_ascii_file_h("/sys/kernel/mm/transparent_hugepage/enabled",
"/sys/kernel/mm/transparent_hugepage/enabled", st);
_print_ascii_file_h("/sys/kernel/mm/transparent_hugepage/hpage_pdm_size",
"/sys/kernel/mm/transparent_hugepage/hpage_pmd_size", st);
_print_ascii_file_h("/sys/kernel/mm/transparent_hugepage/shmem_enabled",
"/sys/kernel/mm/transparent_hugepage/shmem_enabled", st);
_print_ascii_file_h("/sys/kernel/mm/transparent_hugepage/defrag (defrag/compaction efforts parameter)",
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3 comments on commit 3257d9d

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@MBaesken
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/backport jdk21u-dev

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@openjdk openjdk bot commented on 3257d9d Jan 17, 2024

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@MBaesken Could not automatically backport 3257d9db to openjdk/jdk21u-dev due to conflicts in the following files:

  • src/hotspot/os/linux/os_linux.cpp

Please fetch the appropriate branch/commit and manually resolve these conflicts by using the following commands in your personal fork of openjdk/jdk21u-dev. Note: these commands are just some suggestions and you can use other equivalent commands you know.

# Fetch the up-to-date version of the target branch
$ git fetch --no-tags https://git.openjdk.org/jdk21u-dev.git master:master

# Check out the target branch and create your own branch to backport
$ git checkout master
$ git checkout -b backport-MBaesken-3257d9db

# Fetch the commit you want to backport
$ git fetch --no-tags https://git.openjdk.org/jdk22u.git 3257d9db0b691d86643d01a805beda71d158fafd

# Backport the commit
$ git cherry-pick --no-commit 3257d9db0b691d86643d01a805beda71d158fafd
# Resolve conflicts now

# Commit the files you have modified
$ git add files/with/resolved/conflicts
$ git commit -m 'Backport 3257d9db0b691d86643d01a805beda71d158fafd'

Once you have resolved the conflicts as explained above continue with creating a pull request towards the openjdk/jdk21u-dev with the title Backport 3257d9db0b691d86643d01a805beda71d158fafd.

Below you can find a suggestion for the pull request body:

Hi all,

This pull request contains a backport of commit 3257d9db from the openjdk/jdk22u repository.

The commit being backported was authored by Matthias Baesken on 12 Jan 2024 and had no reviewers.

Thanks!

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