From: Olga Denisova Date: Tue, 15 Apr 2025 16:35:27 +0000 (+0300) Subject: pybootchartgui: visualize /proc/net/dev network stats in graphs X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9e640022c83a627bd05c23b66b658bd644b2f0d7;p=thirdparty%2Fopenembedded%2Fopenembedded-core-contrib.git pybootchartgui: visualize /proc/net/dev network stats in graphs This patch adds support for parsing and visualizing network interface statistics from /proc/net/dev in pybootchartgui. It introduces a new NetSample class to hold per-interface metrics, including received/transmitted bytes and their deltas over time. The data is drawn using line and box charts in draw.py and helps to monitor network usage during the boot process for each interface individually. Signed-off-by: denisova-ok Signed-off-by: Mathieu Dubois-Briand Signed-off-by: Richard Purdie --- diff --git a/scripts/pybootchartgui/pybootchartgui/draw.py b/scripts/pybootchartgui/pybootchartgui/draw.py index c6e67833abf..16739a0fa19 100644 --- a/scripts/pybootchartgui/pybootchartgui/draw.py +++ b/scripts/pybootchartgui/pybootchartgui/draw.py @@ -69,6 +69,11 @@ CPU_COLOR = (0.40, 0.55, 0.70, 1.0) IO_COLOR = (0.76, 0.48, 0.48, 0.5) # Disk throughput color. DISK_TPUT_COLOR = (0.20, 0.71, 0.20, 1.0) + +BYTES_RECEIVED_COLOR = (0.0, 0.0, 1.0, 1.0) +BYTES_TRANSMITTED_COLOR = (1.0, 0.0, 0.0, 1.0) +BYTES_RECEIVE_DIFF_COLOR = (0.0, 0.0, 1.0, 0.3) +BYTES_TRANSMIT_DIFF_COLOR = (1.0, 0.0, 0.0, 0.3) # CPU load chart color. FILE_OPEN_COLOR = (0.20, 0.71, 0.71, 1.0) # Mem cached color @@ -437,6 +442,49 @@ def render_charts(ctx, options, clip, trace, curr_y, w, h, sec_w): curr_y = curr_y + 30 + bar_h + if trace.net_stats: + for iface, samples in trace.net_stats.items(): + max_received_sample = max(samples, key=lambda s: s.received_bytes) + max_transmitted_sample = max(samples, key=lambda s: s.transmitted_bytes) + max_receive_diff_sample = max(samples, key=lambda s: s.receive_diff) + max_transmit_diff_sample = max(samples, key=lambda s: s.transmit_diff) + + draw_text(ctx, "Iface: %s" % (iface), TEXT_COLOR, off_x, curr_y+20) + draw_legend_line(ctx, "Bytes received (max %d)" % (max_received_sample.received_bytes), + BYTES_RECEIVED_COLOR, off_x+150, curr_y+20, leg_s) + draw_legend_line(ctx, "Bytes transmitted (max %d)" % (max_transmitted_sample.transmitted_bytes), + BYTES_TRANSMITTED_COLOR, off_x+400, curr_y+20, leg_s) + draw_legend_box(ctx, "Bytes receive diff (max %d)" % (max_receive_diff_sample.receive_diff), + BYTES_RECEIVE_DIFF_COLOR, off_x+650, curr_y+20, leg_s) + draw_legend_box(ctx, "Bytes transmit diff (max %d)" % (max_transmit_diff_sample.transmit_diff), + BYTES_TRANSMIT_DIFF_COLOR, off_x+900, curr_y+20, leg_s) + + + chart_rect = (off_x, curr_y + 30, w, bar_h) + if clip_visible(clip, chart_rect): + draw_box_ticks(ctx, chart_rect, sec_w) + draw_annotations(ctx, proc_tree, trace.times, chart_rect) + + if clip_visible (clip, chart_rect): + draw_chart (ctx, BYTES_RECEIVED_COLOR, False, chart_rect, \ + [(sample.time, sample.received_bytes) for sample in samples], \ + proc_tree, None) + + draw_chart (ctx, BYTES_TRANSMITTED_COLOR, False, chart_rect, \ + [(sample.time, sample.transmitted_bytes) for sample in samples], \ + proc_tree, None) + + if clip_visible (clip, chart_rect): + draw_chart (ctx, BYTES_RECEIVE_DIFF_COLOR, True, chart_rect, \ + [(sample.time, sample.receive_diff) for sample in samples], \ + proc_tree, None) + + draw_chart (ctx, BYTES_TRANSMIT_DIFF_COLOR, True, chart_rect, \ + [(sample.time, sample.transmit_diff) for sample in samples], \ + proc_tree, None) + + curr_y = curr_y + 30 + bar_h + # render CPU pressure chart if trace.cpu_pressure: max_sample_avg = max (trace.cpu_pressure, key = lambda s: s.avg10) diff --git a/scripts/pybootchartgui/pybootchartgui/parsing.py b/scripts/pybootchartgui/pybootchartgui/parsing.py index 144a16c723b..72a54c6ba57 100644 --- a/scripts/pybootchartgui/pybootchartgui/parsing.py +++ b/scripts/pybootchartgui/pybootchartgui/parsing.py @@ -48,6 +48,7 @@ class Trace: self.filename = None self.parent_map = None self.mem_stats = [] + self.net_stats = [] self.monitor_disk = None self.cpu_pressure = [] self.io_pressure = [] @@ -557,6 +558,21 @@ def _parse_monitor_disk_log(file): return disk_stats + +def _parse_reduced_net_log(file): + net_stats = {} + for time, lines in _parse_timed_blocks(file): + + for line in lines: + parts = line.split() + iface = parts[0][:-1] + if iface not in net_stats: + net_stats[iface] = [NetSample(time, iface, int(parts[1]), int(parts[2]), int(parts[3]), int(parts[4]))] + else: + net_stats[iface].append(NetSample(time, iface, int(parts[1]), int(parts[2]), int(parts[3]), int(parts[4]))) + return net_stats + + def _parse_pressure_logs(file, filename): """ Parse file for "some" pressure with 'avg10', 'avg60' 'avg300' and delta total values @@ -767,6 +783,8 @@ def _do_parse(writer, state, filename, file): state.cmdline = _parse_cmdline_log(writer, file) elif name == "monitor_disk.log": state.monitor_disk = _parse_monitor_disk_log(file) + elif name == "reduced_proc_net.log": + state.net_stats = _parse_reduced_net_log(file) #pressure logs are in a subdirectory elif name == "cpu.log": state.cpu_pressure = _parse_pressure_logs(file, name) diff --git a/scripts/pybootchartgui/pybootchartgui/samples.py b/scripts/pybootchartgui/pybootchartgui/samples.py index a70d8a5a283..7c92d2ce6af 100644 --- a/scripts/pybootchartgui/pybootchartgui/samples.py +++ b/scripts/pybootchartgui/pybootchartgui/samples.py @@ -37,6 +37,16 @@ class CPUSample: return str(self.time) + "\t" + str(self.user) + "\t" + \ str(self.sys) + "\t" + str(self.io) + "\t" + str (self.swap) + +class NetSample: + def __init__(self, time, iface, received_bytes, transmitted_bytes, receive_diff, transmit_diff): + self.time = time + self.iface = iface + self.received_bytes = received_bytes + self.transmitted_bytes = transmitted_bytes + self.receive_diff = receive_diff + self.transmit_diff = transmit_diff + class CPUPressureSample: def __init__(self, time, avg10, avg60, avg300, deltaTotal): self.time = time