use potential max thread count in local

[vporyadke]

Changelog entry

correctly count cpu usage with actor system 1.6

Changelog category

• Improvement

Additional information

backport of #6355 + #6967

[github-actions]

⚪ 2024-07-24 13:47:23 UTC Pre-commit check for 51835ea has started.
⚪ 2024-07-24 13:51:06 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2024-07-24 15:01:13 UTC Build successful.
⚪ 2024-07-24 15:01:27 UTC Tests are running...
🔴 2024-07-24 17:26:26 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
74920	61479	0	2	13427	12

🟢 2024-07-24 17:27:10 UTC ydbd size 8.1 GiB changed* by +82.6 KiB, which is < 100.0 KiB vs stable-24-3: OK

ydbd size dash	stable-24-3: bf5f3d7	merge: 51835ea	diff	diff %
ydbd size	8 727 584 672 Bytes	8 727 669 256 Bytes	+82.6 KiB	+0.001%
ydbd stripped size	477 316 552 Bytes	477 312 008 Bytes	-4.4 KiB	-0.001%

^{*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]

⚪ 2024-07-24 13:47:41 UTC Pre-commit check for 51835ea has started.
⚪ 2024-07-24 13:50:38 UTC Build linux-x86_64-release-clang14 is running...
🟢 2024-07-24 14:30:30 UTC Build successful.

[github-actions]

⚪ 2024-07-24 13:47:46 UTC Pre-commit check for 51835ea has started.
⚪ 2024-07-24 13:50:42 UTC Build linux-x86_64-release-asan is running...
🟢 2024-07-24 14:35:34 UTC Build successful.
⚪ 2024-07-24 14:35:48 UTC Tests are running...
🔴 2024-07-24 16:40:12 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
13807	13200	0	94	340	173

🟢 2024-07-24 16:40:58 UTC ydbd size 5.2 GiB changed* by +33.8 KiB, which is < 100.0 KiB vs stable-24-3: OK

ydbd size dash	stable-24-3: bf5f3d7	merge: 51835ea	diff	diff %
ydbd size	5 616 909 560 Bytes	5 616 944 216 Bytes	+33.8 KiB	+0.001%
ydbd stripped size	1 211 406 792 Bytes	1 211 406 120 Bytes	-672 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}