chore(ci): run capture-related perf CI on tmpfs.

[FedeDP]

What type of PR is this?

/kind cleanup

Any specific area of the project related to this PR?

/area CI

Does this PR require a change in the driver versions?

What this PR does / why we need it:

Try to make perf capture-related CI steps more stable.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[github-actions]

Perf diff from master - unit tests

     1.66%     -0.77%  [.] sinsp_evt::get_ts
     2.57%     +0.75%  [.] sinsp_thread_manager::get_thread_ref
     4.01%     -0.63%  [.] gzfile_read
     1.43%     +0.62%  [.] std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release
     4.52%     -0.55%  [.] sinsp_evt::load_params
     2.34%     -0.47%  [.] scap_event_decode_params
     1.53%     -0.46%  [.] 0x00000000000e83a0
     0.86%     +0.46%  [.] std::_Hashtable<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::__detail::_Identity, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, true, true> >::find
     0.91%     +0.44%  [.] sinsp::fetch_next_event
     0.91%     -0.44%  [.] sinsp_fdtable::find

Perf diff from master - scap file

    12.16%     +6.11%  [.] sinsp_filter_check::extract_nocache
    15.35%     -5.74%  [.] sinsp_evt_formatter::tostring_withformat
     3.07%     +3.95%  [.] sinsp_evt::get_param_as_str
     9.16%     -3.77%  [.] next
     8.78%     -3.54%  [.] 0x00000000000a76b4
     3.07%     +1.88%  [.] sinsp_filter_check::get_field_info
     6.14%     -1.87%  [.] sinsp_filter_check::rawval_to_string
     6.13%     -1.87%  [.] sinsp_filter_check::get_transformed_field_info
     3.07%     +1.86%  [.] sinsp::next
     9.19%     -1.86%  [.] sinsp_filter_check_thread::extract_single

Heap diff from master - unit tests

total runtime: -0.09s.
calls to allocation functions: -917 (10188/s)
temporary memory allocations: -218 (2422/s)
peak heap memory consumption: 0B
peak RSS (including heaptrack overhead): 0B
total memory leaked: 0B

Heap diff from master - scap file

total runtime: 0.00s.
calls to allocation functions: 0 (0/s)
temporary memory allocations: 0 (0/s)
peak heap memory consumption: -15B
peak RSS (including heaptrack overhead): 0B
total memory leaked: 0B

[github-actions]

Perf diff from master - unit tests

     9.21%     +1.09%  [.] sinsp_parser::reset
     0.40%     +0.67%  [.] sinsp_evt::is_filtered_out
     1.69%     -0.61%  [.] sinsp_evt::get_ts
     0.76%     +0.61%  [.] libsinsp::events::is_unknown_event
     1.55%     -0.59%  [.] 0x00000000000e83a0
     8.18%     -0.56%  [.] sinsp::next
     2.90%     -0.52%  [.] sinsp_thread_manager::find_thread
     5.39%     +0.49%  [.] next
     0.93%     -0.48%  [.] sinsp_fdtable::find
     0.57%     -0.47%  [.] sinsp_container_info::~sinsp_container_info

Perf diff from master - scap file

    14.84%     -4.09%  [.] sinsp_evt_formatter::tostring_withformat
     2.95%     +3.53%  [.] libsinsp::runc::match_container_id
     8.89%     -2.06%  [.] sinsp_filter_check_thread::extract_single
     5.92%     -2.05%  [.] sinsp_filter_check::get_transformed_field_info
     5.93%     -1.98%  [.] sinsp_filter_check::rawval_to_string
     8.49%     -1.96%  [.] 0x00000000000a76b4
     2.79%     +1.89%  [.] sinsp_filter_check::tostring
     2.97%     +1.78%  [.] sinsp_evt::get_param_as_str
     2.97%     +1.67%  [.] sinsp_thread_manager::get_thread_ref
    11.76%     +1.67%  [.] sinsp_filter_check::extract_nocache

Heap diff from master - unit tests

peak heap memory consumption: 0B
peak RSS (including heaptrack overhead): 0B
total memory leaked: 0B

Heap diff from master - scap file

peak heap memory consumption: -30B
peak RSS (including heaptrack overhead): 0B
total memory leaked: 0B

[FedeDP]

This should hopefully help stabilize the perf related CI (mostly the perf tests on scap file!).
We can't gather correct results until the PR is merged in master since we are diffing from the master perf data :)
/cc @leogr @LucaGuerra

[FedeDP]

/milestone 0.18.0

[github-actions]

Perf diff from master - unit tests

     9.11%     +1.02%  [.] sinsp_parser::reset
     1.67%     -0.77%  [.] sinsp_evt::get_ts
     5.33%     +0.77%  [.] next
     8.09%     -0.67%  [.] sinsp::next
     0.57%     +0.56%  [.] sinsp_utils::find_longest_matching_evt_param
     0.75%     +0.50%  [.] libsinsp::events::is_unknown_event
     4.54%     -0.47%  [.] sinsp_evt::load_params
     2.58%     +0.46%  [.] sinsp_thread_manager::get_thread_ref
     0.75%     +0.45%  [.] std::vector<sinsp_evt_param, std::allocator<sinsp_evt_param> >::emplace_back<sinsp_evt*, unsigned int&, char const*, unsigned long&>
     1.76%     -0.42%  [.] std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char const*>

Perf diff from master - scap file

     3.82%     +5.23%  [.] sinsp_filter_check::tostring
    11.61%     -2.97%  [.] 0x00000000000a76b4
    20.30%     -2.57%  [.] sinsp_evt_formatter::tostring_withformat
     8.10%     +2.52%  [.] sinsp_filter_check::get_transformed_field_info
     4.06%     +2.13%  [.] std::_Hashtable<long, std::pair<long const, std::shared_ptr<sinsp_threadinfo> >, std::allocator<std::pair<long const, std::shared_ptr<sinsp_threadinfo> > >, std::__detail::_Select1st, std::equal_to<long>, std::hash<long>, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<false, false, true> >::_M_find_before_node
    16.08%     -1.88%  [.] sinsp_filter_check::extract_nocache
    12.16%     -1.61%  [.] sinsp_filter_check_thread::extract_single
     4.07%     +1.52%  [.] sinsp_parser::reset
     4.05%     +0.78%  [.] sinsp_filter_check::extract
     3.57%     +0.74%  [.] sinsp_split[abi:cxx11]

Heap diff from master - unit tests

peak heap memory consumption: 0B
peak RSS (including heaptrack overhead): 0B
total memory leaked: 0B

Heap diff from master - scap file

peak heap memory consumption: -30B
peak RSS (including heaptrack overhead): 0B
total memory leaked: 0B

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 50.98%. Comparing base (5c80f0e) to head (68d955c).

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #1975    +/-   ##
========================================
  Coverage   50.98%   50.98%            
========================================
  Files         310      310            
  Lines       39612    39612            
  Branches    17535    17873   +338     
========================================
  Hits        20198    20198            
- Misses      14349    14363    +14     
+ Partials     5065     5051    -14     

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[Andreagit97]

/approve

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

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