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profile: add PROFILE_remote_page_fault

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This commit is contained in:
Balazs Gerofi
2017-07-23 19:00:00 +09:00
parent bf5ac7afc8
commit 4cd1c120fa
4 changed files with 36 additions and 11 deletions
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22
kernel/mem.c
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@@ -558,7 +558,7 @@ static void *mckernel_allocate_aligned_pages_node(int npages, int p2align,
}
else {
#ifdef PROFILE_ENABLE
//profile_event_add(PROFILE_numa_alloc_missed, npages * 4096);
profile_event_add(PROFILE_mpol_alloc_missed, npages * 4096);
#endif
dkprintf("%s: couldn't fulfill explicit NUMA request for %d pages\n",
__FUNCTION__, npages);
@@ -983,7 +983,10 @@ void remote_flush_tlb_array_cpumask(struct process_vm *vm,
void tlb_flush_handler(int vector)
{
#ifdef PROFILE_ENABLE
unsigned long t_s = rdtsc();
unsigned long t_s = 0;
if (cpu_local_var(current)->profile) {
t_s = rdtsc();
}
#endif // PROFILE_ENABLE
int flags = cpu_disable_interrupt_save();
@@ -1011,11 +1014,12 @@ void tlb_flush_handler(int vector)
cpu_restore_interrupt(flags);
#ifdef PROFILE_ENABLE
{
unsigned long t_e = rdtsc();
profile_event_add(PROFILE_tlb_invalidate, (t_e - t_s));
if (cpu_local_var(current)->profile)
if (cpu_local_var(current)->profile) {
unsigned long t_e = rdtsc();
profile_event_add(PROFILE_tlb_invalidate, (t_e - t_s));
cpu_local_var(current)->profile_elapsed_ts +=
(t_e - t_s);
}
}
#endif // PROFILE_ENABLE
}
@@ -1025,8 +1029,9 @@ static void page_fault_handler(void *fault_addr, uint64_t reason, void *regs)
struct thread *thread = cpu_local_var(current);
int error;
#ifdef PROFILE_ENABLE
uint64_t t_s;
t_s = rdtsc();
uint64_t t_s = 0;
if (thread->profile)
t_s = rdtsc();
#endif // PROFILE_ENABLE
set_cputime(interrupt_from_user(regs)? 1: 2);
@@ -1091,7 +1096,8 @@ out:
check_need_resched();
set_cputime(0);
#ifdef PROFILE_ENABLE
profile_event_add(PROFILE_page_fault, (rdtsc() - t_s));
if (thread->profile)
profile_event_add(PROFILE_page_fault, (rdtsc() - t_s));
#endif // PROFILE_ENABLE
return;
}