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bpo-31773: time.perf_counter() uses again double (GH-3964)

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time.clock() and time.perf_counter() now use again C double
internally.

Remove also _PyTime_GetWinPerfCounterWithInfo(): use
_PyTime_GetPerfCounterDoubleWithInfo() instead on Windows.
This commit is contained in:
Victor Stinner 2017-10-12 08:51:56 -07:00 • committed by GitHub
parent 0e61e67a57
commit cba9a0c6de
4 changed files with 50 additions and 49 deletions
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12
Python/import.c
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@ -1669,10 +1669,10 @@ PyImport_ImportModuleLevelObject(PyObject *name, PyObject *globals,
else {
static int ximporttime = 0;
static int import_level;
static _PyTime_t accumulated;
static double accumulated;
_Py_IDENTIFIER(importtime);
_PyTime_t t1 = 0, accumulated_copy = accumulated;
double t1 = 0, accumulated_copy = accumulated;
Py_XDECREF(mod);
@ -1695,7 +1695,7 @@ PyImport_ImportModuleLevelObject(PyObject *name, PyObject *globals,
if (ximporttime) {
import_level++;
t1 = _PyTime_GetPerfCounter();
t1 = _PyTime_GetPerfCounterDouble();
accumulated = 0;
}
@ -1711,12 +1711,12 @@ PyImport_ImportModuleLevelObject(PyObject *name, PyObject *globals,
mod != NULL);
if (ximporttime) {
_PyTime_t cum = _PyTime_GetPerfCounter() - t1;
double cum = _PyTime_GetPerfCounterDouble() - t1;
import_level--;
fprintf(stderr, "import time: %9ld | %10ld | %*s%s\n",
(long)_PyTime_AsMicroseconds(cum - accumulated, _PyTime_ROUND_CEILING),
(long)_PyTime_AsMicroseconds(cum, _PyTime_ROUND_CEILING),
(long)ceil((cum - accumulated) * 1e6),
(long)ceil(cum * 1e6),
import_level*2, "", PyUnicode_AsUTF8(abs_name));
accumulated = accumulated_copy + cum;