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Overview
| Comment: | merge 8-5-event-perf-branch (restore merge point after complex merge across branches 8.6/8.6-timerate/etc) |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | sebres-8-6-event-perf-branch |
| Files: | files | file ages | folders |
| SHA3-256: |
852b037b2fe46da96e61e68356eae86a |
| User & Date: | sebres 2019-03-08 11:37:34.682 |
Context
|
2019-03-08
| ||
| 15:39 | merge 8-5-event-perf-branch (no monotonic time fallbacks) check-in: ec9b47d045 user: sebres tags: sebres-8-6-event-perf-branch | |
| 11:37 | merge 8-5-event-perf-branch (restore merge point after complex merge across branches 8.6/8.6-timerat... check-in: 852b037b2f user: sebres tags: sebres-8-6-event-perf-branch | |
| 11:34 | 3-way merge 8.6 - timerate is part of Tcl now (since TIP#527 got merged), conflicts resolved, merge-... check-in: 102958b94e user: sebres tags: sebres-8-6-event-perf-branch | |
| 04:38 | merge 8.5 (fixed performance test for short exec-time) check-in: 177092d5da user: sebres tags: sebres-8-5-event-perf-branch | |
Changes
Changes to win/tclWinTime.c.
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668 669 670 671 672 673 674 | */ SYSTEM_INFO systemInfo; unsigned int regs[4]; GetSystemInfo(&systemInfo); | > | > > | > | > > | | 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 |
*/
SYSTEM_INFO systemInfo;
unsigned int regs[4];
GetSystemInfo(&systemInfo);
if ( systemInfo.dwNumberOfProcessors >= 2
|| (TclWinCPUID(0, regs) == TCL_OK
&& (
(
regs[1] == 0x756e6547 /* "Genu" */
&& regs[3] == 0x49656e69 /* "ineI" */
&& regs[2] == 0x6c65746e /* "ntel" */
&& TclWinCPUID(1, regs) == TCL_OK
&& (( ((regs[0]&0x00000F00) == 0xF00) /* Pentium 4 */
|| ((regs[0]&0x00000F00) == 0x600) ) /* or compatible (VM) */
&& ((regs[0] & 0x0FF00000) /* Extended family (bits 20-27) */
|| (regs[3] & 0x10000000))) /* Hyperthread (bit 28) */
)
|| ((regs[1]&0x00FF0000) >> 16) >= 2 /* CPU count */
)
)
) {
timeInfo.perfCounterAvailable = TRUE;
} else {
timeInfo.perfCounterAvailable = FALSE;
}
}
#endif /* above code is Win32 only */
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| ︙ | ︙ |