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ladybird/Applications/SystemMonitor/ProcessModel.cpp
Andreas Kling c74cde918a Kernel+SystemMonitor: Expose amount of per-process clean inode memory 
This is memory that's loaded from an inode (file) but not modified in
memory, so still identical to what's on disk. This kind of memory can
be freed and reloaded transparently from disk if needed.
2019-12-29 12:45:58 +01:00

380 lines
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#include "ProcessModel.h"
#include "GraphWidget.h"
#include <AK/JsonArray.h>
#include <AK/JsonObject.h>
#include <AK/JsonValue.h>
#include <LibC/SharedBuffer.h>
#include <LibCore/CProcessStatisticsReader.h>
#include <fcntl.h>
#include <stdio.h>
static ProcessModel* s_the;
ProcessModel& ProcessModel::the()
{
ASSERT(s_the);
return *s_the;
}
ProcessModel::ProcessModel()
{
ASSERT(!s_the);
s_the = this;
m_generic_process_icon = GraphicsBitmap::load_from_file("/res/icons/gear16.png");
m_high_priority_icon = GraphicsBitmap::load_from_file("/res/icons/highpriority16.png");
m_low_priority_icon = GraphicsBitmap::load_from_file("/res/icons/lowpriority16.png");
m_normal_priority_icon = GraphicsBitmap::load_from_file("/res/icons/normalpriority16.png");
}
ProcessModel::~ProcessModel()
{
}
int ProcessModel::row_count(const GModelIndex&) const
{
return m_pids.size();
}
int ProcessModel::column_count(const GModelIndex&) const
{
return Column::__Count;
}
String ProcessModel::column_name(int column) const
{
switch (column) {
case Column::Icon:
return "";
case Column::PID:
return "PID";
case Column::TID:
return "TID";
case Column::State:
return "State";
case Column::User:
return "User";
case Column::Priority:
return "Pr";
case Column::Virtual:
return "Virtual";
case Column::Physical:
return "Physical";
case Column::DirtyPrivate:
return "DirtyP";
case Column::CleanInode:
return "CleanI";
case Column::PurgeableVolatile:
return "Purg:V";
case Column::PurgeableNonvolatile:
return "Purg:N";
case Column::CPU:
return "CPU";
case Column::Name:
return "Name";
case Column::Syscalls:
return "Syscalls";
case Column::InodeFaults:
return "F:Inode";
case Column::ZeroFaults:
return "F:Zero";
case Column::CowFaults:
return "F:CoW";
case Column::IPv4SocketReadBytes:
return "IPv4 In";
case Column::IPv4SocketWriteBytes:
return "IPv4 Out";
case Column::UnixSocketReadBytes:
return "Unix In";
case Column::UnixSocketWriteBytes:
return "Unix Out";
case Column::FileReadBytes:
return "File In";
case Column::FileWriteBytes:
return "File Out";
default:
ASSERT_NOT_REACHED();
}
}
GModel::ColumnMetadata ProcessModel::column_metadata(int column) const
{
switch (column) {
case Column::Icon:
return { 16, TextAlignment::CenterLeft };
case Column::PID:
return { 32, TextAlignment::CenterRight };
case Column::TID:
return { 32, TextAlignment::CenterRight };
case Column::State:
return { 75, TextAlignment::CenterLeft };
case Column::Priority:
return { 16, TextAlignment::CenterLeft };
case Column::User:
return { 50, TextAlignment::CenterLeft };
case Column::Virtual:
return { 65, TextAlignment::CenterRight };
case Column::Physical:
return { 65, TextAlignment::CenterRight };
case Column::DirtyPrivate:
return { 65, TextAlignment::CenterRight };
case Column::CleanInode:
return { 65, TextAlignment::CenterRight };
case Column::PurgeableVolatile:
return { 65, TextAlignment::CenterRight };
case Column::PurgeableNonvolatile:
return { 65, TextAlignment::CenterRight };
case Column::CPU:
return { 32, TextAlignment::CenterRight };
case Column::Name:
return { 140, TextAlignment::CenterLeft };
case Column::Syscalls:
return { 60, TextAlignment::CenterRight };
case Column::InodeFaults:
return { 60, TextAlignment::CenterRight };
case Column::ZeroFaults:
return { 60, TextAlignment::CenterRight };
case Column::CowFaults:
return { 60, TextAlignment::CenterRight };
case Column::FileReadBytes:
return { 60, TextAlignment::CenterRight };
case Column::FileWriteBytes:
return { 60, TextAlignment::CenterRight };
case Column::UnixSocketReadBytes:
return { 60, TextAlignment::CenterRight };
case Column::UnixSocketWriteBytes:
return { 60, TextAlignment::CenterRight };
case Column::IPv4SocketReadBytes:
return { 60, TextAlignment::CenterRight };
case Column::IPv4SocketWriteBytes:
return { 60, TextAlignment::CenterRight };
default:
ASSERT_NOT_REACHED();
}
}
static String pretty_byte_size(size_t size)
{
return String::format("%uK", size / 1024);
}
GVariant ProcessModel::data(const GModelIndex& index, Role role) const
{
ASSERT(is_valid(index));
auto it = m_threads.find(m_pids[index.row()]);
auto& thread = *(*it).value;
if (role == Role::Sort) {
switch (index.column()) {
case Column::Icon:
return 0;
case Column::PID:
return thread.current_state.pid;
case Column::TID:
return thread.current_state.tid;
case Column::State:
return thread.current_state.state;
case Column::User:
return thread.current_state.user;
case Column::Priority:
if (thread.current_state.priority == "Idle")
return 0;
if (thread.current_state.priority == "Low")
return 1;
if (thread.current_state.priority == "Normal")
return 2;
if (thread.current_state.priority == "High")
return 3;
ASSERT_NOT_REACHED();
return 3;
case Column::Virtual:
return (int)thread.current_state.amount_virtual;
case Column::Physical:
return (int)thread.current_state.amount_resident;
case Column::DirtyPrivate:
return (int)thread.current_state.amount_dirty_private;
case Column::CleanInode:
return (int)thread.current_state.amount_clean_inode;
case Column::PurgeableVolatile:
return (int)thread.current_state.amount_purgeable_volatile;
case Column::PurgeableNonvolatile:
return (int)thread.current_state.amount_purgeable_nonvolatile;
case Column::CPU:
return thread.current_state.cpu_percent;
case Column::Name:
return thread.current_state.name;
case Column::Syscalls:
return thread.current_state.syscall_count;
case Column::InodeFaults:
return thread.current_state.inode_faults;
case Column::ZeroFaults:
return thread.current_state.zero_faults;
case Column::CowFaults:
return thread.current_state.cow_faults;
case Column::IPv4SocketReadBytes:
return thread.current_state.ipv4_socket_read_bytes;
case Column::IPv4SocketWriteBytes:
return thread.current_state.ipv4_socket_write_bytes;
case Column::UnixSocketReadBytes:
return thread.current_state.unix_socket_read_bytes;
case Column::UnixSocketWriteBytes:
return thread.current_state.unix_socket_write_bytes;
case Column::FileReadBytes:
return thread.current_state.file_read_bytes;
case Column::FileWriteBytes:
return thread.current_state.file_write_bytes;
}
ASSERT_NOT_REACHED();
return {};
}
if (role == Role::Display) {
switch (index.column()) {
case Column::Icon:
if (thread.current_state.icon_id != -1) {
auto icon_buffer = SharedBuffer::create_from_shared_buffer_id(thread.current_state.icon_id);
if (icon_buffer) {
auto icon_bitmap = GraphicsBitmap::create_with_shared_buffer(GraphicsBitmap::Format::RGBA32, *icon_buffer, { 16, 16 });
if (icon_bitmap)
return *icon_bitmap;
}
}
return *m_generic_process_icon;
case Column::PID:
return thread.current_state.pid;
case Column::TID:
return thread.current_state.tid;
case Column::State:
return thread.current_state.state;
case Column::User:
return thread.current_state.user;
case Column::Priority:
if (thread.current_state.priority == "Idle")
return String::empty();
if (thread.current_state.priority == "High")
return *m_high_priority_icon;
if (thread.current_state.priority == "Low")
return *m_low_priority_icon;
if (thread.current_state.priority == "Normal")
return *m_normal_priority_icon;
return thread.current_state.priority;
case Column::Virtual:
return pretty_byte_size(thread.current_state.amount_virtual);
case Column::Physical:
return pretty_byte_size(thread.current_state.amount_resident);
case Column::DirtyPrivate:
return pretty_byte_size(thread.current_state.amount_dirty_private);
case Column::CleanInode:
return pretty_byte_size(thread.current_state.amount_clean_inode);
case Column::PurgeableVolatile:
return pretty_byte_size(thread.current_state.amount_purgeable_volatile);
case Column::PurgeableNonvolatile:
return pretty_byte_size(thread.current_state.amount_purgeable_nonvolatile);
case Column::CPU:
return thread.current_state.cpu_percent;
case Column::Name:
return thread.current_state.name;
case Column::Syscalls:
return thread.current_state.syscall_count;
case Column::InodeFaults:
return thread.current_state.inode_faults;
case Column::ZeroFaults:
return thread.current_state.zero_faults;
case Column::CowFaults:
return thread.current_state.cow_faults;
case Column::IPv4SocketReadBytes:
return thread.current_state.ipv4_socket_read_bytes;
case Column::IPv4SocketWriteBytes:
return thread.current_state.ipv4_socket_write_bytes;
case Column::UnixSocketReadBytes:
return thread.current_state.unix_socket_read_bytes;
case Column::UnixSocketWriteBytes:
return thread.current_state.unix_socket_write_bytes;
case Column::FileReadBytes:
return thread.current_state.file_read_bytes;
case Column::FileWriteBytes:
return thread.current_state.file_write_bytes;
}
}
return {};
}
void ProcessModel::update()
{
auto all_processes = CProcessStatisticsReader::get_all();
unsigned last_sum_times_scheduled = 0;
for (auto& it : m_threads)
last_sum_times_scheduled += it.value->current_state.times_scheduled;
HashTable<PidAndTid> live_pids;
unsigned sum_times_scheduled = 0;
for (auto& it : all_processes) {
for (auto& thread : it.value.threads) {
ThreadState state;
state.pid = it.value.pid;
state.user = it.value.username;
state.syscall_count = thread.syscall_count;
state.inode_faults = thread.inode_faults;
state.zero_faults = thread.zero_faults;
state.cow_faults = thread.cow_faults;
state.unix_socket_read_bytes = thread.unix_socket_read_bytes;
state.unix_socket_write_bytes = thread.unix_socket_write_bytes;
state.ipv4_socket_read_bytes = thread.ipv4_socket_read_bytes;
state.ipv4_socket_write_bytes = thread.ipv4_socket_write_bytes;
state.file_read_bytes = thread.file_read_bytes;
state.file_write_bytes = thread.file_write_bytes;
state.amount_virtual = it.value.amount_virtual;
state.amount_resident = it.value.amount_resident;
state.amount_dirty_private = it.value.amount_dirty_private;
state.amount_clean_inode = it.value.amount_clean_inode;
state.amount_purgeable_volatile = it.value.amount_purgeable_volatile;
state.amount_purgeable_nonvolatile = it.value.amount_purgeable_nonvolatile;
state.icon_id = it.value.icon_id;
state.name = thread.name;
state.tid = thread.tid;
state.times_scheduled = thread.times_scheduled;
state.priority = thread.priority;
state.state = thread.state;
sum_times_scheduled += thread.times_scheduled;
{
auto pit = m_threads.find({ it.value.pid, thread.tid });
if (pit == m_threads.end())
m_threads.set({ it.value.pid, thread.tid }, make<Thread>());
}
auto pit = m_threads.find({ it.value.pid, thread.tid });
ASSERT(pit != m_threads.end());
(*pit).value->previous_state = (*pit).value->current_state;
(*pit).value->current_state = state;
live_pids.set({ it.value.pid, thread.tid });
}
}
m_pids.clear();
float total_cpu_percent = 0;
Vector<PidAndTid, 16> pids_to_remove;
for (auto& it : m_threads) {
if (!live_pids.contains(it.key)) {
pids_to_remove.append(it.key);
continue;
}
auto& process = *it.value;
u32 times_scheduled_diff = process.current_state.times_scheduled - process.previous_state.times_scheduled;
process.current_state.cpu_percent = ((float)times_scheduled_diff * 100) / (float)(sum_times_scheduled - last_sum_times_scheduled);
if (it.key.pid != 0) {
total_cpu_percent += process.current_state.cpu_percent;
m_pids.append(it.key);
}
}
for (auto pid : pids_to_remove)
m_threads.remove(pid);
if (on_new_cpu_data_point)
on_new_cpu_data_point(total_cpu_percent);
did_update();
}
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