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Add Xgc options for suballocator heap size and quick allocation #19872

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merged 1 commit into from
Sep 30, 2024
Merged

Add Xgc options for suballocator heap size and quick allocation #19872

merged 1 commit into from
Sep 30, 2024

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ThanHenderson
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@ThanHenderson ThanHenderson commented Jul 18, 2024 •
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  1. Use VMEM_ALLOC_QUICK by default for allocateRegion in allocate_memory32
  2. Adds -Xgc:suballocatorQuickAllocDisable option that disables the default VMEM_ALLOC_QUICK
  3. Adds -Xgc:suballocatorIncrementSize option that replaces the HEAP_SIZE_BYTES macro and controls the heap increment size
  4. Adds sanity.functional tests

Addresses: eclipse/omr#7190
Signed-off-by: Nathan Henderson [email protected]

Depends on: eclipse/omr#7472

@ThanHenderson ThanHenderson mentioned this pull request Jul 18, 2024
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@ThanHenderson ThanHenderson force-pushed the cmdline-subincr branch 3 times, most recently from 79b65b7 to dbe4f2a Compare July 21, 2024 00:28
@ThanHenderson ThanHenderson changed the title WIP Add Xgc options for suballocator heap size and quick allocation Add Xgc options for suballocator heap size and quick allocation Jul 21, 2024
@ThanHenderson ThanHenderson marked this pull request as ready for review July 21, 2024 00:34
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@babsingh this is the accompanying OpenJ9 patch for eclipse/omr#7414 that needs to be coordinated with it.

keithc-ca
keithc-ca requested changes Jul 22, 2024
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runtime/gc_modron_startup/mmparseXgc.cpp Outdated Show resolved Hide resolved
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@dmitripivkine dmitripivkine added comp:gc depends:omr Pull request is dependent on a corresponding change in OMR labels Jul 24, 2024
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dmitripivkine approved these changes Jul 24, 2024
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Looks good to me

@ThanHenderson ThanHenderson force-pushed the cmdline-subincr branch 2 times, most recently from 13b4d57 to 1ab8d75 Compare July 26, 2024 17:45
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Needs to be coordinated with: eclipse/omr#7414

I think the OMR change can safely be merged without this, or did I miss something?

@ThanHenderson ThanHenderson force-pushed the cmdline-subincr branch 2 times, most recently from 4080a98 to c84226e Compare July 29, 2024 21:04
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The OMR patch has been merged. We can start the PR builds for this one too.

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dmitripivkine commented Aug 1, 2024 •
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-Xgc: options are documented. Would you please create doc item to add description for new options?
@pshipton FYI

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pshipton commented Aug 1, 2024

The OMR changes also need to promote, but PR builds can depend on OMR #master.
Currently promotion is blocked. When eclipse/omr#7430 is merged that might unblock it, or we'll see what the next problem is.

@keithc-ca keithc-ca self-requested a review August 12, 2024 15:34
@ThanHenderson
Add Xgc options for suballocator heap size and quick allocation
8ef9f22 
1. Use VMEM_ALLOC_QUICK by default for allocateRegion in
   allocate_memory32
2. Adds -Xgc:suballocatorQuickAllocDisable option that
   disables the default VMEM_ALLOC_QUICK
3. Adds -Xgc:suballocatorIncrementSize option that replaces the
   HEAP_SIZE_BYTES macro and controls the heap increment size
4. Adds sanity.functional tests

Addresses: eclipse/omr#7190
Signed-off-by: Nathan Henderson <[email protected]>
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I've removed the ability to propagate the port globals from one port lib to another; we can just rely on default values now specified on the OMR side to ensure that the memoryCheckPortLib has some non-zero value for the suballocatorIncrementSize. We no longer need a coordinated merge. memoryCheckPortLib just will not get the values from the -Xgc options. We can revisit that in the future, and I think the memcheck support should be updated anyways to make it more amenable to proper initialization.

fyi @babsingh

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jenkins line endings check

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Seems like we should have a doc issue opened for this.
https://github.com/eclipse-openj9/openj9-docs/issues/

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jenkins test sanity zlinux,win jdk8,jdk21 depends eclipse/omr#7472

@ThanHenderson ThanHenderson mentioned this pull request Sep 26, 2024
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These changes LGTM. In the PR builds,

I saw three known issues:

Two undocumented issues were seen:

None of the above failures occur due to this PR's changes. @ThanHenderson Can you please open new issues to document the above two failures (PrimeTest & MicroTime)?

I will merge this PR once the latest OMR acceptance build promotes eclipse/omr#7472: https://openj9-jenkins.osuosl.org/job/Pipeline-OMR-Acceptance.

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I was just looking into those now too. I will open the new issues.

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babsingh commented Sep 30, 2024 •
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Merging. eclipse/omr#7472 has promoted i.e. the corresponding changes show in https://github.com/eclipse-openj9/openj9-omr/commits/openj9.

@babsingh babsingh merged commit 4e4330d into eclipse-openj9:master Sep 30, 2024
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@keithc-ca keithc-ca mentioned this pull request Sep 30, 2024
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@ThanHenderson @keithc-ca @dmitripivkine @pshipton @babsingh