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pro: Use a rolling average for the download rate calculation

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This makes it jump around less, and give a decent-ish representation of
download speed.
This commit is contained in:
AnotherTest 2021-01-30 14:22:34 +03:30 • committed by Andreas Kling
parent bdda1600d0
commit 904e1002b8
1 changed files with 10 additions and 3 deletions
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13
Userland/Utilities/pro.cpp
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@ -213,7 +213,9 @@ int main(int argc, char** argv)
} }
u32 previous_downloaded_size { 0 }; u32 previous_downloaded_size { 0 };
timeval prev_time, current_time, time_diff; u32 previous_midpoint_downloaded_size { 0 };
timeval prev_time, prev_midpoint_time, current_time, time_diff;
static constexpr auto download_speed_rolling_average_time_in_ms = 4000;
gettimeofday(&prev_time, nullptr); gettimeofday(&prev_time, nullptr);
bool received_actual_headers = false; bool received_actual_headers = false;
@ -235,8 +237,13 @@ int main(int argc, char** argv)
fprintf(stderr, " at %s/s", human_readable_size(((float)size_diff / (float)time_diff_ms) * 1000).characters()); fprintf(stderr, " at %s/s", human_readable_size(((float)size_diff / (float)time_diff_ms) * 1000).characters());
previous_downloaded_size = downloaded_size; if (time_diff_ms >= download_speed_rolling_average_time_in_ms) {
prev_time = current_time; previous_downloaded_size = previous_midpoint_downloaded_size;
prev_time = prev_midpoint_time;
} else if (time_diff_ms >= download_speed_rolling_average_time_in_ms / 2) {
previous_midpoint_downloaded_size = downloaded_size;
prev_midpoint_time = current_time;
}
}; };
if (save_at_provided_name) { if (save_at_provided_name) {