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Summary:
Fix up to 32x writer regression caused by memory reallocation of the exact size without growing
in ensureNullsCapacity by providing the grows policy.

This regression was identified by DISCO runs on biggest tables and then narrowed by CPU profiling.

Differential Revision: D82172070

@meta-cla meta-cla bot added the CLA Signed This label is managed by the Meta Open Source bot. label Sep 11, 2025
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This pull request was exported from Phabricator. Differential Revision: D82172070

sdruzkin added a commit to sdruzkin/nimble that referenced this pull request Sep 11, 2025
…acity (facebookincubator#247)

Summary:

Fix up to 32x writer regression caused by memory reallocation of the exact size without growing
in ensureNullsCapacity by providing the grows policy. 

This regression was identified by DISCO runs on biggest tables and then narrowed by CPU profiling.

Differential Revision: D82172070
sdruzkin added a commit to sdruzkin/nimble that referenced this pull request Sep 11, 2025
…acity (facebookincubator#247)

Summary:

Fix up to 32x writer regression caused by memory reallocation of the exact size without growing
in ensureNullsCapacity by providing the grows policy. 

This regression was identified by DISCO runs on biggest tables and then narrowed by CPU profiling.

Differential Revision: D82172070
@facebook-github-bot
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This pull request was exported from Phabricator. Differential Revision: D82172070

@facebook-github-bot
Copy link
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This pull request was exported from Phabricator. Differential Revision: D82172070

sdruzkin added a commit to sdruzkin/nimble that referenced this pull request Sep 11, 2025
…acity (facebookincubator#247)

Summary:
Pull Request resolved: facebookincubator#247

Fix up to 32x writer regression caused by memory reallocation of the exact size without growing
in ensureNullsCapacity by providing the grows policy.

This regression was identified by DISCO runs on biggest tables and then narrowed by CPU profiling.

Differential Revision: D82172070
…acity (facebookincubator#247)

Summary:

Fix up to 32x writer regression caused by memory reallocation of the exact size without growing
in ensureNullsCapacity by providing the grows policy. 

This regression was identified by DISCO runs on biggest tables and then narrowed by CPU profiling.

Differential Revision: D82172070
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@sdruzkin has exported this pull request. If you are a Meta employee, you can view the originating diff in D82172070.

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2 participants