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Add compaction prefetching internal stats #13302

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archang19 wants to merge 8 commits into facebook:main from archang19:export-D68224419

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archang19 commented Jan 16, 2025 •

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Summary

(Work in progress)

I searched for all the places with new FilePrefetchBuffer.

GetOrCreatePrefetchBuffer inside PrefetchBufferCollection is used for blob files only.

BlockBasedTableReader has a CreateFilePrefetchBuffer method which is used in PartitionedFilterBlockReader and PartitionedIndexReader.

CreateFilePrefetchBufferIfNotExists however is used by BlockPrefetcher inside PrefetchIfNeeded, which is called by BlockBasedtableIterator and PartitionedIndexIterator.

I did not enable InternalStats for all use cases because there are many, many places in the codebase, and for what we are interested in, I don't think all the usages are relevant.

Right now, we care about the compaction prefetching buffer memory usage.

Test Plan

Work in progress

facebook-github-bot added the CLA Signed label

Contributor

facebook-github-bot commented Jan 16, 2025

This pull request was exported from Phabricator. Differential Revision: D68224419

facebook-github-bot added the fb-exported label

archang19 force-pushed the export-D68224419 branch from c76a690 to 998b94a Compare

January 16, 2025 00:05

Contributor

facebook-github-bot commented Jan 16, 2025

@archang19 has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

Contributor

facebook-github-bot commented Jan 16, 2025

This pull request was exported from Phabricator. Differential Revision: D68224419

archang19 added a commit to archang19/rocksdb that referenced this pull request


          Add compaction prefetching internal stats (facebook#13302)

314f2db

Summary: Pull Request resolved: facebook#13302

Differential Revision: D68224419

Pulled By: archang19

archang19 force-pushed the export-D68224419 branch from 998b94a to 314f2db Compare

January 16, 2025 18:04

Contributor

facebook-github-bot commented Jan 16, 2025

This pull request was exported from Phabricator. Differential Revision: D68224419

archang19 added a commit to archang19/rocksdb that referenced this pull request


          Add compaction prefetching internal stats (facebook#13302)

e63d9fc

Summary: Pull Request resolved: facebook#13302

Differential Revision: D68224419

Pulled By: archang19

archang19 force-pushed the export-D68224419 branch from 314f2db to e63d9fc Compare

January 16, 2025 18:23

Contributor

facebook-github-bot commented Jan 16, 2025

This pull request was exported from Phabricator. Differential Revision: D68224419

archang19 added a commit to archang19/rocksdb that referenced this pull request


          Add compaction prefetching internal stats (facebook#13302)

884ef9f

Summary: Pull Request resolved: facebook#13302

Differential Revision: D68224419

Pulled By: archang19

archang19 force-pushed the export-D68224419 branch from e63d9fc to 884ef9f Compare

January 16, 2025 19:42

archang19 added a commit to archang19/rocksdb that referenced this pull request


          Add compaction prefetching internal stats (facebook#13302)

c77e283

Summary: Pull Request resolved: facebook#13302

Differential Revision: D68224419

Pulled By: archang19

archang19 force-pushed the export-D68224419 branch from 884ef9f to c77e283 Compare

January 16, 2025 19:45

Contributor

facebook-github-bot commented Jan 16, 2025

@archang19 has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

Contributor

facebook-github-bot commented Jan 16, 2025

This pull request was exported from Phabricator. Differential Revision: D68224419

archang19 added a commit to archang19/rocksdb that referenced this pull request


          Add compaction prefetching internal stats (facebook#13302)

58ce655

Summary: Pull Request resolved: facebook#13302

Differential Revision: D68224419

Pulled By: archang19

archang19 force-pushed the export-D68224419 branch from c77e283 to 58ce655 Compare

January 16, 2025 19:51

archang19 added a commit to archang19/rocksdb that referenced this pull request


          Add compaction prefetching internal stats (facebook#13302)

aefe67b

Summary: Pull Request resolved: facebook#13302

Differential Revision: D68224419

Pulled By: archang19

archang19 force-pushed the export-D68224419 branch from 58ce655 to aefe67b Compare

January 16, 2025 19:54

Contributor

facebook-github-bot commented Jan 16, 2025

@archang19 has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

Contributor

facebook-github-bot commented Jan 16, 2025

This pull request was exported from Phabricator. Differential Revision: D68224419

archang19 added a commit to archang19/rocksdb that referenced this pull request


          Add compaction prefetching internal stats (facebook#13302)

d4fc198

Summary: Pull Request resolved: facebook#13302

Differential Revision: D68224419

Pulled By: archang19

archang19 force-pushed the export-D68224419 branch from aefe67b to d4fc198 Compare

January 16, 2025 21:16

Contributor

facebook-github-bot commented Jan 17, 2025

This pull request was exported from Phabricator. Differential Revision: D68224419

archang19 force-pushed the export-D68224419 branch from d4fc198 to d1ec645 Compare

January 17, 2025 00:04

archang19 added a commit to archang19/rocksdb that referenced this pull request


          Add compaction prefetching internal stats (facebook#13302)

d1ec645

Summary: Pull Request resolved: facebook#13302

Differential Revision: D68224419

Pulled By: archang19

archang19 force-pushed the export-D68224419 branch from 4559ceb to 44b05de Compare

January 17, 2025 17:59

archang19 added 3 commits

January 17, 2025 10:12


          Add compaction prefetching internal stats (facebook#13302)

54b5eff

Summary: Pull Request resolved: facebook#13302

Differential Revision: D68224419

Pulled By: archang19


          Feed through internal stats to fileprefetchbuffer

cc8a329


          Typos and lint

2bd88d2

archang19 force-pushed the export-D68224419 branch from 8faada9 to 2bd88d2 Compare

January 17, 2025 18:12

Contributor

facebook-github-bot commented Jan 17, 2025

@archang19 has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

archang19 commented

View reviewed changes

db/compaction/compaction_job.cc

    
            @@ -781,7 +781,7 @@ Status CompactionJob::Run() {
          
                          cfd->internal_comparator(), files_output[file_idx]->meta,

                          /*range_del_agg=*/nullptr,

                          compact_->compaction->mutable_cf_options(),

                          /*table_reader_ptr=*/nullptr,

Contributor Author

archang19 Jan 17, 2025

This is the part that we care about the most IMO. We want to have internal_stats passed in from CompactionJob::Run

archang19 added 5 commits

January 17, 2025 10:20


          External file ingestion job can also pass in internal stats

71f1b60


          ImportColumnFamilyJob can pass in internal_stats

0433eea


          Repair, table_cache, version_builder, and version_set

23a6006


          Fix fuzzer, file prefetch buffer, block based table reader, sst file …

960e47c

…dumper


          Fix GetMapPropertyDbStats

402e8a5

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