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Kernel: statistical profiling fixes

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- create name entries for forked processes as well;
- create name entries only for system processes.
This commit is contained in:
David van Moolenbroek 2010-12-16 09:46:26 +00:00
parent f0f34dd8d9
commit b6f3b7e7f6
2 changed files with 12 additions and 10 deletions
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19
kernel/profile.c
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@ -101,18 +101,19 @@ PRIVATE void profile_sample(struct proc * p, void * pc)
return;
}
if (!(p->p_misc_flags & MF_SPROF_SEEN)) {
p->p_misc_flags |= MF_SPROF_SEEN;
sprof_save_proc(p);
}
/* Runnable system process? */
if (p->p_endpoint == IDLE)
sprof_info.idle_samples++;
sprof_info.idle_samples++;
else if (p->p_endpoint == KERNEL ||
(priv(p)->s_flags & SYS_PROC && proc_is_runnable(p))) {
sprof_save_sample(p, pc);
sprof_info.system_samples++;
(priv(p)->s_flags & SYS_PROC && proc_is_runnable(p))) {
if (!(p->p_misc_flags & MF_SPROF_SEEN)) {
p->p_misc_flags |= MF_SPROF_SEEN;
sprof_save_proc(p);
}
sprof_save_sample(p, pc);
sprof_info.system_samples++;
} else {
/* User process. */
sprof_info.user_samples++;

3
kernel/system/do_fork.c
View File

@ -79,7 +79,8 @@ PUBLIC int do_fork(struct proc * caller, message * m_ptr)
rpc->p_sys_time = 0;
rpc->p_reg.psw &= ~TRACEBIT; /* clear trace bit */
rpc->p_misc_flags &= ~(MF_VIRT_TIMER | MF_PROF_TIMER | MF_SC_TRACE);
rpc->p_misc_flags &=
~(MF_VIRT_TIMER | MF_PROF_TIMER | MF_SC_TRACE | MF_SPROF_SEEN);
rpc->p_virt_left = 0; /* disable, clear the process-virtual timers */
rpc->p_prof_left = 0;