Fix buggy IC setting leading to performance degradation (merge from main #9707)

[alexvru]

Changelog entry

Fix buggy IC setting leading to performance degradation

Changelog category

• Performance improvement

Additional information

Default setting of 512k send buffer size leads to performance degradation on modern networks, making IC unable to reach its top performance. Default setting has been removed.

[github-actions]

⚪ 2024-09-24 15:27:26 UTC Pre-commit check for a7ed062 has started.
⚪ 2024-09-24 15:30:16 UTC Build linux-x86_64-release-asan is running...
🟢 2024-09-24 16:11:13 UTC Build successful.
⚪ 2024-09-24 16:11:27 UTC Tests are running...
🔴 2024-09-24 18:07:48 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
11766	11686	0	9	35	36

🟢 2024-09-24 18:08:27 UTC ydbd size 5.5 GiB changed* by -336 Bytes, which is <= 0 Bytes vs stable-24-3: OK

ydbd size dash	stable-24-3: 97ff008	merge: a7ed062	diff	diff %
ydbd size	5 935 805 688 Bytes	5 935 805 352 Bytes	-336 Bytes	-0.000%
ydbd stripped size	1 488 067 808 Bytes	1 488 067 744 Bytes	-64 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]

⚪ 2024-09-24 15:28:32 UTC Pre-commit check for a7ed062 has started.
⚪ 2024-09-24 15:32:02 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2024-09-24 16:36:16 UTC Build successful.
⚪ 2024-09-24 16:36:31 UTC Tests are running...
🔴 2024-09-24 18:57:49 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
72897	59432	0	6	13424	35

🟢 2024-09-24 18:58:34 UTC ydbd size 8.2 GiB changed* by -608 Bytes, which is <= 0 Bytes vs stable-24-3: OK

ydbd size dash	stable-24-3: 97ff008	merge: a7ed062	diff	diff %
ydbd size	8 764 165 448 Bytes	8 764 164 840 Bytes	-608 Bytes	-0.000%
ydbd stripped size	479 110 088 Bytes	479 110 088 Bytes	0 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]

⚪ 2024-09-24 15:32:03 UTC Pre-commit check for a7ed062 has started.
⚪ 2024-09-24 15:34:55 UTC Build linux-x86_64-release-clang14 is running...
🟢 2024-09-24 16:11:50 UTC Build successful.