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Overview
| Comment: | unix: implements wide-clicks on unix (1 wide-click == 0.001 microseconds (1 nanosecond)), so more precise now (e. g. by time measurement etc.); unix/configure: regenerated (autoconf) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | sebres-8-5-event-perf-branch |
| Files: | files | file ages | folders |
| SHA1: |
701d66ce66a201f09c13ddc140287d89 |
| User & Date: | sebres 2017-07-03 13:32:11 |
Context
|
2017-07-03
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| 13:32 | fix check event source threshold (corresponds 100-ns ranges, if the wide-clicks supported); because... check-in: 68ebe50d7b user: sebres tags: sebres-8-5-event-perf-branch | |
| 13:32 | unix: implements wide-clicks on unix (1 wide-click == 0.001 microseconds (1 nanosecond)), so more pr... check-in: 701d66ce66 user: sebres tags: sebres-8-5-event-perf-branch | |
| 13:32 | [unix] fixes conditional-wait: timeout is monotonic based; check-in: ff5825e185 user: sebres tags: sebres-8-5-event-perf-branch | |
Changes
Changes to unix/configure.
more than 10,000 changes
Changes to unix/configure.in.
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AC_CHECK_FUNCS(OSSpinLockLock)
fi
AC_DEFINE(USE_VFORK, 1, [Should we use vfork() instead of fork()?])
AC_DEFINE(TCL_DEFAULT_ENCODING, "utf-8",
[Are we to override what our default encoding is?])
AC_DEFINE(TCL_LOAD_FROM_MEMORY, 1,
[Can this platform load code from memory?])
| < < | 515 516 517 518 519 520 521 522 523 524 525 526 527 528 |
AC_CHECK_FUNCS(OSSpinLockLock)
fi
AC_DEFINE(USE_VFORK, 1, [Should we use vfork() instead of fork()?])
AC_DEFINE(TCL_DEFAULT_ENCODING, "utf-8",
[Are we to override what our default encoding is?])
AC_DEFINE(TCL_LOAD_FROM_MEMORY, 1,
[Can this platform load code from memory?])
AC_CHECK_HEADERS(AvailabilityMacros.h)
if test "$ac_cv_header_AvailabilityMacros_h" = yes; then
AC_CACHE_CHECK([if weak import is available], tcl_cv_cc_weak_import, [
hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror"
AC_TRY_LINK([
#ifdef __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1020
|
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# Build .bundle dltest binaries in addition to .dylib
DLTEST_LD='${CC} -bundle -Wl,-w ${CFLAGS} ${LDFLAGS}'
DLTEST_SUFFIX=".bundle"
else
DLTEST_LD='${SHLIB_LD}'
DLTEST_SUFFIX=""
fi
#--------------------------------------------------------------------
# Check for support of fts functions (readdir replacement)
#--------------------------------------------------------------------
AC_CACHE_CHECK([for fts], tcl_cv_api_fts, [
AC_TRY_LINK([
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# Build .bundle dltest binaries in addition to .dylib
DLTEST_LD='${CC} -bundle -Wl,-w ${CFLAGS} ${LDFLAGS}'
DLTEST_SUFFIX=".bundle"
else
DLTEST_LD='${SHLIB_LD}'
DLTEST_SUFFIX=""
fi
# Completelly supports on unix (linux/darwin)
AC_DEFINE(TCL_WIDE_CLICKS, 1,
[Does this platform have wide high-resolution clicks?])
#--------------------------------------------------------------------
# Check for support of fts functions (readdir replacement)
#--------------------------------------------------------------------
AC_CACHE_CHECK([for fts], tcl_cv_api_fts, [
AC_TRY_LINK([
|
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Changes to unix/tclUnixTime.c.
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*
*----------------------------------------------------------------------
*/
unsigned long
TclpGetClicks(void)
{
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*
*----------------------------------------------------------------------
*/
unsigned long
TclpGetClicks(void)
{
/* clicks should provide monotonic intervals */
return (unsigned long) TclpGetUTimeMonotonic();
}
#ifdef TCL_WIDE_CLICKS
/*
*-----------------------------------------------------------------------------
*
* TclpGetWideClicks --
|
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*/
Tcl_WideInt
TclpGetWideClicks(void)
{
Tcl_WideInt now;
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*/
Tcl_WideInt
TclpGetWideClicks(void)
{
Tcl_WideInt now;
if (tclGetTimeProcPtr == NativeGetTime) {
#ifndef MAC_OSX_TCL
/* 1 wide click == 0.001 microseconds (1 nanosecond) */
struct timespec mntv;
(void)clock_gettime(CLOCK_MONOTONIC, &mntv);
return ((Tcl_WideInt)mntv.tv_sec)*1000000*1000 + mntv.tv_nsec;
#else /* MAC_OSX_TCL: */
/* 1 wide click == (tb.numer / tb.denom / 1000) microseconds */
return (Tcl_WideInt) (mach_absolute_time() & INT64_MAX);
#endif
} else {
/* 1 wide click == 1 microsecond (1000 nanoseconds) */
Tcl_Time time;
(*tclGetTimeProcPtr) (&time, tclTimeClientData);
now = ((Tcl_WideInt)time.sec)*1000000 + time.usec;
}
return now;
}
/*
*-----------------------------------------------------------------------------
|
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double
TclpWideClicksToNanoseconds(
Tcl_WideInt clicks)
{
double nsec;
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double
TclpWideClicksToNanoseconds(
Tcl_WideInt clicks)
{
double nsec;
if (tclGetTimeProcPtr == NativeGetTime) {
#ifndef MAC_OSX_TCL
/* 1 wide click == 0.001 microseconds (1 nanosecond) */
return clicks;
#else /* MAC_OSX_TCL: */
/* 1 wide click == (tb.numer / tb.denom) nanoseconds */
static mach_timebase_info_data_t tb;
static uint64_t maxClicksForUInt64;
if (!tb.denom) {
mach_timebase_info(&tb);
maxClicksForUInt64 = UINT64_MAX / tb.numer;
}
if ((uint64_t) clicks < maxClicksForUInt64) {
nsec = ((uint64_t) clicks) * tb.numer / tb.denom;
} else {
nsec = ((long double) (uint64_t) clicks) * tb.numer / tb.denom;
}
#endif
} else {
/* 1 wide click == 1 microsecond (1000 nanoseconds) */
nsec = clicks * 1000;
}
return nsec;
}
/*
*----------------------------------------------------------------------
|
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*
*----------------------------------------------------------------------
*/
double
TclpWideClickInMicrosec(void)
{
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*
*----------------------------------------------------------------------
*/
double
TclpWideClickInMicrosec(void)
{
if (tclGetTimeProcPtr == NativeGetTime) {
#ifndef MAC_OSX_TCL
/* 1 wide click == 0.001 microseconds (1 nanosecond) */
return 0.001;
#else /* MAC_OSX_TCL: */
/* 1 wide click == (tb.numer / tb.denom / 1000) microseconds */
static int initialized = 0;
static double scale = 0.0;
if (initialized) {
return scale;
} else {
mach_timebase_info_data_t tb;
mach_timebase_info(&tb);
/* value of tb.numer / tb.denom = 1 click in nanoseconds */
scale = ((double)tb.numer) / tb.denom / 1000;
initialized = 1;
return scale;
}
#endif
} else {
/* 1 wide click == 1 microsecond (1000 nanoseconds) */
return 1.0;
}
}
#endif /* TCL_WIDE_CLICKS */
/*
*----------------------------------------------------------------------
*
|
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