perf_stacks 20602  2217.581638:          1 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443cc6f090 _start (/lib/x86_64-linux-gnu/ld-2.27.so)

perf_stacks 20602  2217.581651:          1 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443cc6f090 _start (/lib/x86_64-linux-gnu/ld-2.27.so)

perf_stacks 20602  2217.581658:         11 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443cc6f090 _start (/lib/x86_64-linux-gnu/ld-2.27.so)

perf_stacks 20602  2217.581676:        202 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443cc6f090 _start (/lib/x86_64-linux-gnu/ld-2.27.so)

perf_stacks 20602  2217.581684:       1583 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443cc6f090 _start (/lib/x86_64-linux-gnu/ld-2.27.so)

perf_stacks 20602  2217.581692:      27207 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443cc6f090 _start (/lib/x86_64-linux-gnu/ld-2.27.so)

perf_stacks 20602  2217.581713:     438507 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443cc6fec6 _dl_start (/lib/x86_64-linux-gnu/ld-2.27.so)

perf_stacks 20602  2217.581907:    2925420 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443cc8af43 __mmap64 (inlined)
	    7f443cc74e3b _dl_map_segments (inlined)
	    7f443cc74e3b _dl_map_object_from_fd (/lib/x86_64-linux-gnu/ld-2.27.so)
	    7f443cc76ffb _dl_map_object (/lib/x86_64-linux-gnu/ld-2.27.so)
	    7f443cc7c311 openaux (/lib/x86_64-linux-gnu/ld-2.27.so)
	    7f443cc89c6a _dl_catch_exception (/lib/x86_64-linux-gnu/ld-2.27.so)
	    7f443cc7c617 _dl_map_object_deps (/lib/x86_64-linux-gnu/ld-2.27.so)
	    7f443cc71ea5 dl_main (/lib/x86_64-linux-gnu/ld-2.27.so)
	    7f443cc88dcf _dl_sysdep_start (/lib/x86_64-linux-gnu/ld-2.27.so)
	    7f443cc70127 _dl_start_final (inlined)
	    7f443cc70127 _dl_start (/lib/x86_64-linux-gnu/ld-2.27.so)
	    7f443cc6f097 _start (/lib/x86_64-linux-gnu/ld-2.27.so)

perf_stacks 20602  2217.583134:    3946818 cycles:uppp: 
	    7f443c99893a std::__timepunct<wchar_t>::_M_initialize_timepunct (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443ca0e820 std::__timepunct<wchar_t>::__timepunct (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c98b119 std::locale::_Impl::_Impl (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c98b3b4 [unknown] (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c98b468 std::locale::locale (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c988322 std::ios_base::Init::Init (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbf2a __static_initialization_and_destruction_0 (/home/user/genperf/perf_stacks)
	    561aa58dbf5d _GLOBAL__sub_I_main (/home/user/genperf/perf_stacks)
	    561aa58dc0ec __libc_csu_init (/home/user/genperf/perf_stacks)
	    7f443c2fdb27 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.584867:    3855907 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.586558:    3483805 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.588082:    3306084 cycles:uppp: 
	    561aa58dbcc3 std::_Function_handler<int (int, int), main::{lambda(int, int)#1}>::_M_invoke (/home/user/genperf/perf_stacks)
	    561aa58dc06e std::function<int (int, int)>::operator() (/home/user/genperf/perf_stacks)
	    561aa58dbb49 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.589531:    3164128 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.590920:    2947000 cycles:uppp: 
	    7f443c9f7c4b std::ostream::flush (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.592212:    2844178 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.600079:    2764170 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.611992:    2462625 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.617349:          1 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.617365:          1 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.617373:          8 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.617380:        130 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.617388:       2452 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.617396:      43378 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.617425:     719911 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.617747:    3688215 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.626339:    4152450 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.634319:    3705991 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.646810:    2724215 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.653537:    2724215 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.654741:    2305027 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.664474:    2256281 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.670970:    2100752 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.679268:    1878620 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.680101:    1878620 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.686100:          1 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.686115:          1 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.686123:          9 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.686130:        156 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.686137:       2906 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.686144:      55875 cycles:uppp: 
	ffffffff9c2009e7 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.686177:     944187 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.686601:    3944422 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.701609:    4614996 cycles:uppp: 
	    7f443c9f8457 std::ostream::sentry::sentry (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7ffe6610ba00 [unknown] ([unknown])

perf_stacks 20602  2217.703640:    4231626 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.705538:    3963232 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

perf_stacks 20602  2217.716584:    2462625 cycles:uppp: 
	ffffffff9c200158 [unknown] ([kernel.kallsyms])
	    7f443c3ec154 __GI___libc_write (/lib/x86_64-linux-gnu/libc-2.27.so)
	    7f443c3671bc _IO_new_file_write (inlined)
	    7f443c368f50 new_do_write (inlined)
	    7f443c368f50 _IO_new_do_write (inlined)
	    7f443c369402 _IO_new_file_overflow (inlined)
	    7f443c9f8699 std::ostream::put (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    7f443c9f889e std::endl<char, std::char_traits<char> > (/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25)
	    561aa58dbb72 main (/home/user/genperf/perf_stacks)
	    7f443c2fdb96 __libc_start_main (/lib/x86_64-linux-gnu/libc-2.27.so)
	    561aa58db9f9 _start (/home/user/genperf/perf_stacks)

