From 107ab6e261e5a3b5c828eb0342e3bacac11eafa6 Mon Sep 17 00:00:00 2001
From: Carlos O'Donell <carlos@redhat.com>
Date: Mar 12 2019 19:51:30 +0000
Subject: trace_plot: Compute min, max, mean.


Tidy up the variables and compute min, max, mean from
the allocation data and use that in the plot.

---

diff --git a/trace_plot.m b/trace_plot.m
index cc98037..b549251 100644
--- a/trace_plot.m
+++ b/trace_plot.m
@@ -23,20 +23,20 @@ close all;
 # memory the simulator was using at startup before the simulation was started,
 # therefore we must subtract this value from the loaded vmsize and vmrss to get
 # something that we can compare to the idealized RSS.
-bias=67071483904;
+bias=15556608;
 # Size of pages, used for converting page count values e.g. vmsize, vmrss.
 pagesz = 4096;
 # Downsampling ratio: The number of events that are collapsed into one.
 # e.g. 1000000:1 means a mllion events are downsampled into one final event
 #      to simplify data analysis.
-down_sample_ratio = 1000000;
+down_sample_ratio = 100;
 # Location of all the reuqired data files:
-path = "/path/to/trace/";
-allocs_file = [path "uw1_ds1M_allocs.log"];
-ideal_rss_file = [path "uw1_ds1M_ideal_rss.log"];
-vmsize_file = [path "uw1_ds1M_vmsize.log"];
-vmrss_file = [path "uw1_ds1M_vmrss.log"];
-binned_allocs_file = [path "uw1_binned_allocs.log"];
+path = "/home/carlos/support/fluentd2/";
+allocs_file = [path "fdw1_ds100_allocs.log"];
+ideal_rss_file = [path "fdw1_ds100_ideal_RSS.log"];
+vmsize_file = [path "fdw1_ds100_VmSize.log"];
+vmrss_file = [path "fdw1_ds100_VmRSS.log"];
+binned_allocs_file = [path "fdw1_binned_allocs.log"];
 
 # Load data using normal loader into standard names for plotting and processing.
 data_allocs = load (allocs_file);
@@ -53,6 +53,10 @@ idx_max = 2;
 idx_mean = 3;
 idx_val = 4;
 
+data_allocs_min = min (data_allocs(:,idx_min));
+data_allocs_max = max (data_allocs(:,idx_max));
+data_allocs_mean = mean (data_allocs(:,idx_mean));
+
 # Default graphing parameters:
 plot_line_width=4;
 tick_line_width=2;
@@ -64,6 +68,7 @@ figure_height = 1024;
 plot1_legend_loc = "northeast";
 plot2_legend_loc = "southeast";
 
+################################################################################
 # Plot 1:
 # Plot the allocation sizes as a function of event tick time (not real time).
 set(0, 'defaulttextfontsize', font_size)
@@ -72,9 +77,6 @@ figure (1, "Position", [figure_x, figure_y, figure_width, figure_height]);
 plot (data_allocs, 'o', 'linewidth', plot_line_width);
 h=get(gcf, "currentaxes");
 set(h, "fontsize", font_size, "linewidth", plot_line_width);
-data_allocs_min = 1;
-data_allocs_max = 27378856;
-data_allocs_mean = 69;
 min_str = sprintf ("Min: %lu byte(s)", data_allocs_min);
 max_str = sprintf ("Max: %lu bytes", data_allocs_max);
 mean_str = sprintf ("Mean: %lu bytes", data_allocs_mean);
@@ -117,10 +119,13 @@ hold on;
 plot (ax(1), x, data_ideal_rss(:,idx_mean), "color", "black", 'linewidth', plot_line_width);
 h=get(gcf, "currentaxes");
 set(h, "fontsize", font_size, "linewidth", tick_line_width);
-legend ("Ideal RSS Size", "RSS Size", "Virtual Address Size", "location", plot2_legend_loc);
+# Set the legend for the current plots in the following order:
+# ax(1) - RSS and Ideal RSS in that order.
+# ax(2) - Virtual address size.
+legend ("RSS Size", "Ideal RSS Size", "Virtual Address Size", "location", plot2_legend_loc);
 # Linear regression of mean Ideal RSS samples.
 block_start = 1000;
-block_end = 24000;
+block_end = 600000;
 y = data_ideal_rss(block_start:block_end,4);
 m = block_end - block_start + 1;
 x = linspace (block_start, block_end, m);
@@ -131,7 +136,7 @@ plot(X(:,2), X*theta_ideal_rss, '-', "color", "green", 'linewidth', plot_line_wi
 
 # Linear regression of mean Real RSS samples.
 block_start = 1000;
-block_end = 24000;
+block_end = 600000;
 y = data_vmrss(block_start:block_end,4) * 4096 - bias;
 m = block_end - block_start + 1;
 x = linspace (block_start, block_end, m);
@@ -165,9 +170,10 @@ legend ("RSS Size", "Ideal RSS Size", "location", plot2_legend_loc);
 ################################################################################
 endif
 
-
 hold off;
-
+################################################################################
+# Plot 3:
+# Plot the distribution of sizes.
 data_binned_allocs_sorted = sortrows (data_binned_allocs);
 figure (3, "Position", [0,0,1024,1024]);
 loglog (data_binned_allocs_sorted(:,1),data_binned_allocs_sorted(:,2), 'o', "linewidth", plot_line_width);
@@ -180,3 +186,4 @@ set(gca, "xticklabel", sprintf ('%1.0e|', xt));
 title ("Allocation Size Distribution");
 xlabel ("Allocation Size (bytes)");
 ylabel ("Number of allocations");
+################################################################################