[Backport stable-25-4-1] PR #36084: Fix tiny ydb harmonizer logic

[ydbot]

Changelog entry

Fix tiny ydb harmonizer logic: Fix actor system metrics reporting for tiny ydb

Changelog category

• Bugfix

Description for reviewers

Original PR(s)

• PR Fix tiny ydb harmonizer logic #36084

Metadata

• Original PR author(s): @kruall
• Cherry-picked by: @kruall
• Related issues: None

Git Cherry-Pick Log

=== Cherry-picking f639481 ===
Auto-merging ydb/core/driver_lib/run/auto_config_initializer.cpp
Auto-merging ydb/library/actors/core/cpu_manager.cpp
Auto-merging ydb/library/actors/core/executor_pool_basic.cpp
Auto-merging ydb/library/actors/core/harmonizer/harmonizer.cpp
[cherry-pick-stable-25-4-1-260318-082916 09ea88823cf] Fix tiny ydb harmonizer logic (#36084)
 Author: kruall <kruall@ydb.tech>
 Date: Wed Mar 18 11:05:54 2026 +0300
 8 files changed, 56 insertions(+), 14 deletions(-)

---

PR was created by cherry-pick workflow run

[github-actions]

⚪ 2026-03-18 08:35:40 UTC Pre-commit check linux-x86_64-relwithdebinfo for 616bd39 has started.
⚪ 2026-03-18 08:35:53 UTC Artifacts will be uploaded here
⚪ 2026-03-18 08:40:11 UTC ya make is running...
🟡 2026-03-18 10:20:35 UTC Some tests failed, follow the links below. Going to retry failed tests...

Details

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
42480	39776	0	7	2671	26

⚪ 2026-03-18 10:20:45 UTC ya make is running... (failed tests rerun, try 2)
🟢 2026-03-18 10:41:37 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
960 (only retried tests)	942	0	0	0	18

🟢 2026-03-18 10:41:40 UTC Build successful.
🟢 2026-03-18 10:42:04 UTC ydbd size 2.3 GiB changed* by +1.8 KiB, which is < 100.0 KiB vs stable-25-4-1: OK

ydbd size dash	stable-25-4-1: ddaad4d	merge: 616bd39	diff	diff %
ydbd size	2 425 795 376 Bytes	2 425 797 264 Bytes	+1.8 KiB	+0.000%
ydbd stripped size	516 506 120 Bytes	516 506 568 Bytes	+448 Bytes	+0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[ydbot]

Run Extra Tests

Run additional tests for this PR. You can customize:

• Test Size: small, medium, large (default: all)
• Test Targets: any directory path (default: ydb/)
• Sanitizers: ASAN, MSAN, TSAN
• Coredumps: enable for debugging (default: off)
• Additional args: custom ya make arguments

[github-actions]

⚪ 2026-03-18 09:12:31 UTC Pre-commit check linux-x86_64-release-asan for 616bd39 has started.
⚪ 2026-03-18 09:14:16 UTC Artifacts will be uploaded here
⚪ 2026-03-18 09:18:42 UTC ya make is running...
🟡 2026-03-18 11:39:11 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
18919	18393	0	198	305	23

🟢 2026-03-18 11:39:23 UTC Build successful.
🟢 2026-03-18 11:39:57 UTC ydbd size 3.8 GiB changed* by +3.5 KiB, which is < 100.0 KiB vs stable-25-4-1: OK

ydbd size dash	stable-25-4-1: 62e68c2	merge: 616bd39	diff	diff %
ydbd size	4 036 519 256 Bytes	4 036 522 840 Bytes	+3.5 KiB	+0.000%
ydbd stripped size	1 502 636 288 Bytes	1 502 638 208 Bytes	+1.9 KiB	+0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}