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CProcessStatisticsReader: Be consistent about terminology from the kernel down

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Robin Burchell 2019-07-17 22:22:22 +02:00 • committed by Andreas Kling
parent 9724d540b6
commit a9d1a86e6e
7 changed files with 74 additions and 48 deletions
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26
Userland/top.cpp
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@ -13,14 +13,14 @@
struct ProcessData {
CProcessStatistics stats;
unsigned nsched_since_prev { 0 };
unsigned times_scheduled_since_prev { 0 };
unsigned cpu_percent { 0 };
unsigned cpu_percent_decimal { 0 };
};
struct Snapshot {
HashMap<unsigned, ProcessData> map;
u32 sum_nsched { 0 };
u32 sum_times_scheduled { 0 };
};
static Snapshot get_snapshot()
@ -31,7 +31,7 @@ static Snapshot get_snapshot()
for (auto& it : all_processes) {
auto& stats = it.value;
snapshot.sum_nsched += stats.nsched;
snapshot.sum_times_scheduled += stats.times_scheduled;
ProcessData process_data;
process_data.stats = stats;
snapshot.map.set(stats.pid, move(process_data));
@ -47,7 +47,7 @@ int main(int, char**)
usleep(10000);
for (;;) {
auto current = get_snapshot();
auto sum_diff = current.sum_nsched - prev.sum_nsched;
auto sum_diff = current.sum_times_scheduled - prev.sum_times_scheduled;
printf("\033[3J\033[H\033[2J");
printf("\033[47;30m%6s %3s %-8s %-8s %6s %6s %4s %s\033[K\033[0m\n",
@ -63,20 +63,20 @@ int main(int, char**)
pid_t pid = it.key;
if (pid == 0)
continue;
u32 nsched_now = it.value.stats.nsched;
u32 times_scheduled_now = it.value.stats.times_scheduled;
auto jt = prev.map.find(pid);
if (jt == prev.map.end())
continue;
u32 nsched_before = (*jt).value.stats.nsched;
u32 nsched_diff = nsched_now - nsched_before;
it.value.nsched_since_prev = nsched_diff;
it.value.cpu_percent = ((nsched_diff * 100) / sum_diff);
it.value.cpu_percent_decimal = (((nsched_diff * 1000) / sum_diff) % 10);
u32 times_scheduled_before = (*jt).value.stats.times_scheduled;
u32 times_scheduled_diff = times_scheduled_now - times_scheduled_before;
it.value.times_scheduled_since_prev = times_scheduled_diff;
it.value.cpu_percent = ((times_scheduled_diff * 100) / sum_diff);
it.value.cpu_percent_decimal = (((times_scheduled_diff * 1000) / sum_diff) % 10);
processes.append(&it.value);
}
quick_sort(processes.begin(), processes.end(), [](auto* p1, auto* p2) {
return p2->nsched_since_prev < p1->nsched_since_prev;
return p2->times_scheduled_since_prev < p1->times_scheduled_since_prev;
});
for (auto* process : processes) {
@ -85,8 +85,8 @@ int main(int, char**)
process->stats.priority[0],
process->stats.username.characters(),
process->stats.state.characters(),
process->stats.virtual_size / 1024,
process->stats.physical_size / 1024,
process->stats.amount_virtual / 1024,
process->stats.amount_resident / 1024,
process->cpu_percent,
process->cpu_percent_decimal,
process->stats.name.characters());