On Thu, 23 Sep 2021 12:45:25 +0300
"Tzvetomir Stoyanov (VMware)" <tz.stoyanov@xxxxxxxxx> wrote:
> @@ -1235,7 +1236,6 @@ timestamp_correction_calc(unsigned long long ts, unsigned int flags,
> struct ts_offset_sample *min,
> struct ts_offset_sample *max)
> {
> - long long scaling;
> long long tscor;
>
> if (flags & TRACECMD_TSYNC_FLAG_INTERPOLATE) {
> @@ -1243,15 +1243,12 @@ timestamp_correction_calc(unsigned long long ts, unsigned int flags,
> long long offset = ((long long)ts - min->time) *
> (max->offset - min->offset);
>
> - scaling = (min->scaling + max->scaling) / 2;
So the max->scaling is not going to play a role here?
Does this work for other methods besides KVM?
-- Steve
> tscor = min->offset + (offset + delta / 2) / delta;
> -
> } else {
> - scaling = min->scaling;
> tscor = min->offset;
> }
>
> - ts *= scaling;
> + ts = (ts * min->scaling) >> min->fraction;
> if (tscor < 0)
> return ts - llabs(tscor);
>
> @@ -2337,37 +2334,16 @@ static int tsync_offset_cmp(const void *a, const void *b)
>
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