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parse_dl_file.m
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function [avg_proc_duration, std_proc_duration] = parse_dl_file(filename)
fid = fopen(filename);
PLOT = 0;
temp = textscan(fid,"%f%f%f%f%f%f%f%f%f%f", 'HeaderLines',2);
frame_start = temp{1};
pilot_recv=temp{2};
process_start = temp{3};
all_pilot_received = temp{4};
fft_processed = temp{5};
zf_processed = temp{6};
precode_processed = temp{7};
encode_processed = temp{9};
rx_processed = temp{10};
ifft_processed = temp{8};
zf_duration = zf_processed-fft_processed;
fft_duration = fft_processed;
ifft_duration = ifft_processed - zf_duration;
frame_duration_rx = rx_processed;
frame_duration_fft = fft_processed;
frame_duration_precode = precode_processed;
frame_duration_encode = encode_processed;
frame_duration_zf = zf_processed;
frame_duration_ifft = ifft_processed;
frame_duration = diff(frame_start);
frame_count = length(precode_processed);
frame_count = frame_count - 1;
pilot_rx_duration = all_pilot_received;
queueing_delay = process_start;
frame_duration_processing = max([frame_duration,frame_duration_encode(1:end-1)],[],2);
index = [1:frame_count];
% index(1:512:frame_count) = [];
subset = index(1200:frame_count-2);
fprintf("Average delay between rx thread and main thread: %.2f\n", ...
mean(pilot_recv(subset)));
avg_frame_duration = mean(frame_duration(subset));
avg_rx_duration = mean(frame_duration_rx(subset));
avg_precode_duration = mean(frame_duration_precode(subset));
avg_proc_duration = mean(frame_duration_ifft(subset));
std_proc_duration = std(frame_duration_ifft(subset));
avg_proc_start = mean(process_start(subset));
avg_zf_duration = mean(zf_duration(subset));
avg_fft_duration = mean(fft_duration(subset));
avg_ifft_duration = mean(ifft_duration(subset));
fprintf("In main thread: queueing delay: %.2f, FFT of pilots done: %.2f, ZF done: %.2f, IFFT done: %.2f, total: %.2f\n",...
avg_proc_start,avg_fft_duration,avg_zf_duration,...
avg_ifft_duration,avg_proc_duration);
fprintf("Frame duration: %.2f, RX duration: %.5f, Processing delay: %.5f\n", avg_frame_duration,avg_rx_duration, avg_proc_duration-avg_rx_duration);
fprintf("Pilot RX duration: %.2f\n", mean(pilot_rx_duration(subset)));
% process_delay = demul_processed-rx_processed;
process_delay = frame_duration_processing - frame_duration;
avg_proc_delay = mean(process_delay(subset));
std_proc_delay = std(process_delay(subset));
[f_proc_delay,x_proc_delay] = ecdf(process_delay(subset));
x_set = x_proc_delay(f_proc_delay>0.99);
proc_delay_99th = x_set(1);
[f_zf_delay,x_zf_delay] = ecdf(zf_duration(subset));
x_set = x_zf_delay(f_zf_delay>0.99);
zf_delay_99th = x_set(1);
fprintf("Process delay 99th: %.2f, ZF delay 99th: %.3f\n", proc_delay_99th, zf_delay_99th);
fprintf("Process delay mean: %.2f (std: %.2f), ZF delay mean: %.2f\n", avg_proc_delay, std_proc_delay, avg_zf_duration);
fprintf("DL processing duration: %.2f, std: %.2f\n", avg_proc_duration, std_proc_duration);
if PLOT
figure(1);clf;
% plot(fft_duration(1:frame_count),'LineWidth',2);
plot(fft_time_in_function(subset), 'LineWidth',2);
hold on;
plot(zf_time_in_function(subset), 'LineWidth',2);
hold on;
plot(demul_time_in_function(subset), 'LineWidth',2);
hold on;
plot(zf_duration(subset),'LineWidth',2);
set(gca,'FontSize',18);
grid on;
xlabel('Frame id');
ylabel('Duration (us)');
legend({'FFT in function','ZF in function','Demodulation in function','ZF'});
figure(2);clf;
plot(frame_duration_fft(subset),'LineWidth',2);
hold on;
plot(frame_duration_zf(subset),'LineWidth',2);
hold on;
plot(frame_duration_demul(subset),'LineWidth',2);
hold on;
plot(frame_duration_rx(subset),'LineWidth',2);
hold on;
plot(frame_duration_encode(subset),'LineWidth',2);
set(gca,'FontSize',18);
grid on;
xlabel('Frame id');
ylabel('Duration (us)');
legend({'FFT of pilots','ZF','Demodulation','RX', "Deocde"});
figure(4);clf;
plot(process_delay(1:frame_count),'LineWidth',2);
set(gca,'FontSize',18);
grid on;
xlabel('Frame id');
ylabel('Delay (us)');
title('Processing delay')
figure(5);clf;
h1 = cdfplot(process_delay(subset));
set(h1,'LineWidth',2);
set(gca,'FontSize',18);
grid on;
% xlabel('Frame id');
xlabel('Delay (us)');
title('Processing delay')
% figure(7);clf;
% plot(pilot_recv(1:end)-frame_start(1:end),'LineWidth',2);
% set(gca,'FontSize',18);
% grid on;
% xlabel('Frame id');
% ylabel('Time (us)');
% title('Delay between main thread and rx thread')
% figure(8);clf;
% h1 = cdfplot(pilot_recv(subset)-frame_start(subset));
% set(h1,'LineWidth',2);
% set(gca,'FontSize',18);
% grid on;
% % xlabel('Frame id');
% xlabel('Time (us)');
% title('Delay between main thread and rx thread')
%%
% fid = fopen('tx_result.txt');
% temp = textscan(fid,"%f");
% frame_ends=temp{1};
% frame_duration_tx = diff(frame_ends);
% avg_tx_duration = mean(frame_duration_tx(1200:length(frame_duration_tx)-1));
% fprintf("In emulator: TX duration %.5f\n", avg_tx_duration);
% figure(6);clf;
% plot(frame_duration_tx(subset),'LineWidth',24);
% set(gca,'FontSize', 24);
% grid on;
% xlabel('Frame id');
% ylabel('Time (us)');
% title('TX duration');
frame_duration_rx1 = diff(frame_start);
figure(3);clf;
h1=cdfplot(frame_duration_rx(subset));
hold on;
h2=cdfplot(frame_duration_precode(subset));
hold on;
% h3=cdfplot(frame_duration_tx(1200:length(frame_duration_tx)-1));
h3=cdfplot(ifft_processed(subset));
set(h1,'LineWidth',2);
set(h2,'LineWidth',2);
set(h3,'LineWidth',2,'LineStyle', '--', 'Color', 'k');
grid on;
set(gca,'FontSize',18);
xlabel('Duration (us)');
% legend({sprintf('RX duration (avg: %.2f us)',avg_rx_duration),...
% sprintf('Data processing duration (avg: %.2f us)', avg_proc_duration)},'Location','southeast');
% legend({sprintf('RX duration (avg: %.2f us)',avg_rx_duration),...
% sprintf('Data processing duration (avg: %.2f us)', avg_proc_duration),...
% sprintf('TX duration in emulator (avg: %.2f us)', avg_tx_duration)},'Location','southeast');
legend({sprintf('RX duration (avg: %.2f us)',avg_rx_duration),...
sprintf('Precode done (avg: %.2f us)', avg_precode_duration),...
sprintf('IFFT done (avg: %.2f us)', avg_proc_duration)},'Location','southeast');
title('CDF of frame duration and processing duration')
end
end