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kern: add tracing for irq/scheduling

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This commit is contained in:
Michael Scire
2020-08-03 18:11:13 -07:00
committed by SciresM
parent 8e5c0a9663
commit f058536b59
6 changed files with 59 additions and 12 deletions
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9
libraries/libmesosphere/source/kern_k_scheduler.cpp
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@@ -99,6 +99,8 @@ namespace ams::kern {
}
}
MESOSPHERE_KTRACE_SCHEDULE_UPDATE(this->core_id, (prev_highest_thread != nullptr ? prev_highest_thread : this->idle_thread), (highest_thread != nullptr ? highest_thread : this->idle_thread));
this->state.highest_priority_thread = highest_thread;
this->state.needs_scheduling = true;
return (1ul << this->core_id);
@@ -163,6 +165,7 @@ namespace ams::kern {
/* The suggested thread isn't bound to its core, so we can migrate it! */
suggested->SetActiveCore(core_id);
priority_queue.ChangeCore(suggested_core, suggested);
MESOSPHERE_KTRACE_CORE_MIGRATION(suggested->GetId(), suggested_core, core_id, 1);
top_threads[core_id] = suggested;
cores_needing_scheduling |= Kernel::GetScheduler(core_id).UpdateHighestPriorityThread(top_threads[core_id]);
break;
@@ -188,6 +191,7 @@ namespace ams::kern {
/* Perform the migration. */
suggested->SetActiveCore(core_id);
priority_queue.ChangeCore(candidate_core, suggested);
MESOSPHERE_KTRACE_CORE_MIGRATION(suggested->GetId(), candidate_core, core_id, 2);
top_threads[core_id] = suggested;
cores_needing_scheduling |= Kernel::GetScheduler(core_id).UpdateHighestPriorityThread(top_threads[core_id]);
break;
@@ -253,6 +257,8 @@ namespace ams::kern {
this->prev_thread = nullptr;
}
MESOSPHERE_KTRACE_THREAD_SWITCH(next_thread);
/* Switch the current process, if we're switching processes. */
if (KProcess *next_process = next_thread->GetOwnerProcess(); next_process != cur_process) {
/* MESOSPHERE_LOG("!!! PROCESS SWITCH !!! %s -> %s\n", cur_process != nullptr ? cur_process->GetName() : nullptr, next_process != nullptr ? next_process->GetName() : nullptr); */
@@ -496,6 +502,7 @@ namespace ams::kern {
if (running_on_suggested_core == nullptr || running_on_suggested_core->GetPriority() >= HighestCoreMigrationAllowedPriority) {
suggested->SetActiveCore(core_id);
priority_queue.ChangeCore(suggested_core, suggested, true);
MESOSPHERE_KTRACE_CORE_MIGRATION(suggested->GetId(), suggested_core, core_id, 3);
IncrementScheduledCount(suggested);
break;
} else {
@@ -549,6 +556,7 @@ namespace ams::kern {
/* Migrate the current thread to core -1. */
cur_thread.SetActiveCore(-1);
priority_queue.ChangeCore(core_id, std::addressof(cur_thread));
MESOSPHERE_KTRACE_CORE_MIGRATION(cur_thread.GetId(), core_id, -1, 4);
IncrementScheduledCount(std::addressof(cur_thread));
/* If there's nothing scheduled, we can try to perform a migration. */
@@ -563,6 +571,7 @@ namespace ams::kern {
if (top_on_suggested_core == nullptr || top_on_suggested_core->GetPriority() >= HighestCoreMigrationAllowedPriority) {
suggested->SetActiveCore(core_id);
priority_queue.ChangeCore(suggested_core, suggested);
MESOSPHERE_KTRACE_CORE_MIGRATION(suggested->GetId(), suggested_core, core_id, 5);
IncrementScheduledCount(suggested);
}