There's problem with sampling summary when --sample-display-row is used

[PrzemekWirkus]

Description

With --sample-display-row flag set, we can see that sampling "total" summary is "shifted" under "sample source" line and above sampling symbols list:

======================== sample source: ld_spec, top 5 hot functions ========================
           93.75%  1200  top 5 in total
        overhead  count  symbol
        ========  =====  ======
           80.86   1035  static struct _longobject * x_mul(struct _longobject *, struct _longobject *):python312_d.dll

For above 93.75% 1200 top 5 in total should be under symbol list. See example below with full listing of the example sampling with and without troublesome flag.

Example

>wperf record -e ld_spec:100000 -c 1 --sample-display-row 5  --sample-display-long --timeout 30 -- cpython\PCbuild\arm64\python_d.exe -c 10**10**100
base address of 'cpython\PCbuild\arm64\python_d.exe': 0x7ff765fe1288, runtime delta: 0x7ff625fe0000
sampling .....e..e..e..e..e done!
======================== sample source: ld_spec, top 5 hot functions ========================
           93.75%  1200  top 5 in total
        overhead  count  symbol
        ========  =====  ======
           80.86   1035  static struct _longobject * x_mul(struct _longobject *, struct _longobject *):python312_d.dll
            5.08     65  static unsigned int v_isub(unsigned int *, __int64, unsigned int *, __int64):python312_d.dll
            3.52     45  _Py_atomic_load_32bit_impl:python312_d.dll
            2.19     28  static unsigned int v_iadd(unsigned int *, __int64, unsigned int *, __int64):python312_d.dll
            2.11     27  PyErr_CheckSignals:python312_d.dll

              17.297 seconds time elapsed

>wperf record -e ld_spec:100000 -c 1 --sample-display-long --timeout 30 -- cpython\PCbuild\arm64\python_d.exe -c 10**10**100
base address of 'cpython\PCbuild\arm64\python_d.exe': 0x7ff765fe1288, runtime delta: 0x7ff625fe0000
sampling .....e..e..e..e..e done!
======================== sample source: ld_spec, top 50 hot functions ========================
        overhead  count  symbol
        ========  =====  ======
           77.89    997  static struct _longobject * x_mul(struct _longobject *, struct _longobject *):python312_d.dll
            4.69     60  static unsigned int v_isub(unsigned int *, __int64, unsigned int *, __int64):python312_d.dll
            4.38     56  _Py_atomic_load_32bit_impl:python312_d.dll
            3.28     42  static unsigned int v_iadd(unsigned int *, __int64, unsigned int *, __int64):python312_d.dll
            2.66     34  PyErr_CheckSignals:python312_d.dll
            2.03     26  unknown
            1.41     18  static struct _longobject * x_add(struct _longobject *, struct _longobject *):python312_d.dll
            0.78     10  _Py_atomic_load_64bit_impl:python312_d.dll
            0.62      8  static int _Py_ThreadCanHandleSignals(struct _is *):python312_d.dll
            0.55      7  static unsigned __int64 read_size_t(const void *):python312_d.dll
            0.31      4  static void _PyMem_DebugCheckAddress(const char *, char, const void *):python312_d.dll
            0.31      4  _PyErr_CheckSignalsTstate:python312_d.dll
            0.16      2  static void _Py_DECREF_SPECIALIZED(struct _object *,  *):python312_d.dll
            0.16      2  static void write_size_t(void *, unsigned __int64):python312_d.dll
            0.16      2  static struct _longobject * k_mul(struct _longobject *, struct _longobject *):python312_d.dll
            0.16      2  static struct _longobject * long_normalize(struct _longobject *):python312_d.dll
            0.08      1  static void _PyObject_Init(struct _object *, struct _typeobject *):python312_d.dll
            0.08      1  _PyMem_DebugRawFree:python312_d.dll
            0.08      1  static void * _PyMem_DebugRawAlloc(int, void *, unsigned __int64):python312_d.dll
            0.08      1  _PyMem_RawFree:python312_d.dll
            0.08      1  _PyMem_DebugMalloc:python312_d.dll
            0.08      1  static struct _ts * tstate_tss_get(struct _Py_tss_t *):python312_d.dll
          100.00%  1280  top 22 in total

              17.053 seconds time elapsed