| commit | e3b4b7baad555f74b6fbc0ddc00d46ed0ac03a0a | [log] [tgz] |
|---|---|---|
| author | Jordan Rhee <jordanrh@microsoft.com> | Tue Dec 18 12:54:23 2018 -0800 |
| committer | Brad Fitzpatrick <bradfitz@golang.org> | Tue Dec 18 23:01:06 2018 +0000 |
| tree | 9b67e4b0bd73d150289a8e5decaae8b56fc78e1f | |
| parent | 9ded8b0e97588895e00e93299e4a4a748cfa3a4b [diff] |
runtime: use QPC for nanotime and time.now on windows/arm The previous implementation of nanotime and time.now used a time source that was updated on the system clock tick, which has a maximum resolution of about 1ms. On 386 and amd64, this time source maps to the system performance counter, so has much higher resolution. On ARM, use QueryPerformanceCounter() to get a high resolution timestamp. Updates #26148 Change-Id: I1abc99baf927a95b472ac05020a7788626c71d08 Reviewed-on: https://go-review.googlesource.com/c/154758 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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