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Don't truncate time when accumulating, and then divide by non-truncated.

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This commit is contained in:
howard-stearns 2016-04-15 10:17:57 -07:00
parent 3e03f85f07
commit 089e7eb6b3
1 changed files with 3 additions and 3 deletions
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6
libraries/shared/src/shared/RateCounter.h
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@ -22,10 +22,10 @@ class RateCounter {
public: public:
void increment(size_t count = 1) { void increment(size_t count = 1) {
auto now = usecTimestampNow(); auto now = usecTimestampNow();
auto currentIntervalMs = (uint32_t)((now - _start) / USECS_PER_MSEC); float currentIntervalMs = (now - _start) / (float) USECS_PER_MSEC;
if (currentIntervalMs > INTERVAL) { if (currentIntervalMs > (float) INTERVAL) {
float currentCount = _count; float currentCount = _count;
float intervalSeconds = (float)currentIntervalMs / (float)MSECS_PER_SECOND; float intervalSeconds = currentIntervalMs / (float) MSECS_PER_SECOND;
_rate = roundf(currentCount / intervalSeconds * _scale) / _scale; _rate = roundf(currentCount / intervalSeconds * _scale) / _scale;
_start = now; _start = now;
_count = 0; _count = 0;