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ProcessManager: Add CPU/memory usage graphs in a separate tab.

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Finally we get some real use for the new GTabWidget. :^)
This commit is contained in:
Andreas Kling 2019-05-06 03:21:23 +02:00
parent 6df3df62be
commit 25bb7a59ac
10 changed files with 140 additions and 19 deletions
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11
Applications/ProcessManager/ProcessModel.cpp
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@ -1,10 +1,12 @@
#include "ProcessModel.h"
#include "GraphWidget.h"
#include <LibCore/CFile.h>
#include <fcntl.h>
#include <stdio.h>
#include <pwd.h>
ProcessModel::ProcessModel()
ProcessModel::ProcessModel(GraphWidget& graph)
: m_graph(graph)
{
setpwent();
while (auto* passwd = getpwent())
@ -197,6 +199,7 @@ void ProcessModel::update()
}
m_pids.clear();
float total_cpu_percent = 0;
Vector<pid_t, 16> pids_to_remove;
for (auto& it : m_processes) {
if (!live_pids.contains(it.key)) {
@ -206,11 +209,15 @@ void ProcessModel::update()
auto& process = *it.value;
dword nsched_diff = process.current_state.nsched - process.previous_state.nsched;
process.current_state.cpu_percent = ((float)nsched_diff * 100) / (float)(sum_nsched - last_sum_nsched);
if (it.key != 0)
if (it.key != 0) {
total_cpu_percent += process.current_state.cpu_percent;
m_pids.append(it.key);
}
}
for (auto pid : pids_to_remove)
m_processes.remove(pid);
m_graph.add_value(total_cpu_percent);
did_update();
}