Fixed an error in calculating metrics in the PQ tablet (#29321)

[nshestakov]

Changelog entry

Fixed an error in calculating metrics in the PQ tablet, as a result of which the resource usage was incorrectly determined, which led to unnecessary balancing of tablets.

Changelog category

• Bugfix

Description for reviewers

LOGBROKER-10121

[github-actions]

🟢 2025-11-26 11:04:25 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-11-26 11:04:59 UTC Pre-commit check linux-x86_64-relwithdebinfo for 11a7ab5 has started.
⚪ 2025-11-26 11:05:14 UTC Artifacts will be uploaded here
⚪ 2025-11-26 11:08:23 UTC ya make is running...
🔴 2025-11-26 11:13:10 UTC Build failed, see the logs. Also see fail summary

[github-actions]

⚪ 2025-11-26 11:05:08 UTC Pre-commit check linux-x86_64-release-asan for 11a7ab5 has started.
⚪ 2025-11-26 11:05:32 UTC Artifacts will be uploaded here
⚪ 2025-11-26 11:09:16 UTC ya make is running...
🔴 2025-11-26 11:22:40 UTC Build failed, see the logs. Also see fail summary

[github-actions]

⚪ 2025-11-26 12:06:06 UTC Pre-commit check linux-x86_64-release-asan for 29a6905 has started.
⚫ 2025-11-26 12:06:25 UTC Check cancelled

[github-actions]

⚪ 2025-11-26 12:09:21 UTC Pre-commit check linux-x86_64-relwithdebinfo for 1521ed8 has started.
⚪ 2025-11-26 12:09:38 UTC Artifacts will be uploaded here
⚪ 2025-11-26 12:12:48 UTC ya make is running...
🟡 2025-11-26 13:34:32 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
35727	33187	0	6	2484	50

⚪ 2025-11-26 13:37:33 UTC ya make is running... (failed tests rerun, try 2)
🟡 2025-11-26 13:59:21 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
118 (only retried tests)	75	0	2	3	38

⚪ 2025-11-26 13:59:29 UTC ya make is running... (failed tests rerun, try 3)
🟢 2025-11-26 14:11:37 UTC Tests successful.

Test history | Ya make output | Test bloat | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
75 (only retried tests)	38	0	0	3	34

🟢 2025-11-26 14:11:48 UTC Build successful.
🟢 2025-11-26 14:12:08 UTC ydbd size 2.2 GiB changed* by -4.4 KiB, which is <= 0 Bytes vs stable-25-2: OK

ydbd size dash	stable-25-2: 7d71ed0	merge: 1521ed8	diff	diff %
ydbd size	2 327 288 296 Bytes	2 327 283 800 Bytes	-4.4 KiB	-0.000%
ydbd stripped size	487 662 056 Bytes	487 661 672 Bytes	-384 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}

[github-actions]

⚪ 2025-11-26 12:10:27 UTC Pre-commit check linux-x86_64-release-asan for 1521ed8 has started.
⚪ 2025-11-26 12:10:45 UTC Artifacts will be uploaded here
⚪ 2025-11-26 12:13:59 UTC ya make is running...
🟡 2025-11-26 13:36:38 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet Going to retry failed tests...

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
14641	14455	0	45	106	35

⚪ 2025-11-26 13:37:52 UTC ya make is running... (failed tests rerun, try 2)
🟡 2025-11-26 13:55:01 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet Going to retry failed tests...

Test history | Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
236 (only retried tests)	201	0	1	1	33

⚪ 2025-11-26 13:55:09 UTC ya make is running... (failed tests rerun, try 3)
🟢 2025-11-26 14:06:37 UTC Tests successful.

Test history | Ya make output | Test bloat | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
64 (only retried tests)	31	0	0	1	32

🟢 2025-11-26 14:06:45 UTC Build successful.
🟢 2025-11-26 14:07:09 UTC ydbd size 3.8 GiB changed* by +128 Bytes, which is < 100.0 KiB vs stable-25-2: OK

ydbd size dash	stable-25-2: 7d71ed0	merge: 1521ed8	diff	diff %
ydbd size	4 050 441 488 Bytes	4 050 441 616 Bytes	+128 Bytes	+0.000%
ydbd stripped size	1 409 822 360 Bytes	1 409 823 896 Bytes	+1.5 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}