[7215] Extend memory usage threshold to 65%

[lizhijianrd]

Description of PR

Summary:
Testcase platform_tests/test_cpu_memory_usage.py flaky fails on Nokia-7215.
The failure reason is MEM usage occasionally exceed threshold 60%. So far I haven't see it exceed 61%.

14/01/2025 04:50:11 test_cpu_memory_usage.check_memory       L0261 DEBUG  | System memory usage: 57% (below 60%) - Result: {'total': 3097488.0, 'free': 1326536.0, 'used': 1593928.0, 'used_percent': 57.2}
14/01/2025 04:50:11 test_cpu_memory_usage.test_cpu_memory_us L0072 DEBUG  | ------ Iteration 1 ------
14/01/2025 04:50:11 test_cpu_memory_usage.check_memory       L0261 DEBUG  | System memory usage: 59% (below 60%) - Result: {'total': 3097488.0, 'free': 1270408.0, 'used': 1650052.0, 'used_percent': 59.0}
14/01/2025 04:50:11 test_cpu_memory_usage.test_cpu_memory_us L0072 DEBUG  | ------ Iteration 2 ------
14/01/2025 04:50:11 test_cpu_memory_usage.check_memory       L0261 DEBUG  | System memory usage: 60% (exceed 60%) - Result: {'total': 3097488.0, 'free': 1229432.0, 'used': 1691028.0, 'used_percent': 60.3}
14/01/2025 04:50:11 test_cpu_memory_usage.test_cpu_memory_us L0072 DEBUG  | ------ Iteration 3 ------
14/01/2025 04:50:11 test_cpu_memory_usage.check_memory       L0261 DEBUG  | System memory usage: 58% (below 60%) - Result: {'total': 3097488.0, 'free': 1288936.0, 'used': 1631524.0, 'used_percent': 58.4}
14/01/2025 04:50:11 test_cpu_memory_usage.test_cpu_memory_us L0072 DEBUG  | ------ Iteration 4 ------
14/01/2025 04:50:11 test_cpu_memory_usage.check_memory       L0261 DEBUG  | System memory usage: 58% (below 60%) - Result: {'total': 3097488.0, 'free': 1298216.0, 'used': 1622248.0, 'used_percent': 58.1}

To resolve this issue, increase threshold to 65%.

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• New Test case
  • Skipped for non-supported platforms
• Test case improvement

Back port request

• 202012
• 202205
• 202305
• 202311
• 202405
• 202411

Approach

What is the motivation for this PR?

How did you do it?

How did you verify/test it?

Verified by running testcase on Nokia-7215 Mx testbed.

Any platform specific information?

Supported testbed topology if it's a new test case?

Documentation

[mssonicbld]

/azp run

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