def summarize_subroutines(funcnames, title=None):
subpids = _funcpids(funcnames)
# funcnames are specified using | operator
if (not subpids):
return
if (len(subpids) < 100):
verifyFastSet(subpids, funcnames)
if (not subpids):
return
d = defaultdict(int)
total = 0
for pid in subpids:
t = T_table.getByTid(pid)
d[t.state] += 1
total += 1
# Print
if (title):
header = "There are {} threads {}".format(total, title)
else:
header = "There are {} threads doing {}".format(total, funcnames)
print_header(header)
for k, v in d.items():
print(" {:3d} in {}".format(v, k))
print_pidlist(subpids,
maxpids=_MAXPIDS,
verbose=_VERBOSE,
sortbytime=_SORTBYTIME)
def check_throttle_direct_reclaim(tasksrem):
pids = _funcpids(__tdr_func)
verifyFastSet(pids, __tdr_func)
if (pids):
print_header("Waiting for kswapd")
print_pidlist(pids,
maxpids=_MAXPIDS,
verbose=_VERBOSE,
sortbytime=_SORTBYTIME,
statefilter=('UN', ))
remove_pidlist(tasksrem, pids)
def check_stack_and_print(funcname, tasksrem, txt=None):
pids = _funcpids(funcname) & tasksrem
verifyFastSet(pids, funcname)
if (not pids):
return
if (txt is None):
txt = funcname
print_header("Waiting in {}".format(txt))
print_pidlist(pids,
maxpids=_MAXPIDS,
verbose=_VERBOSE,
sortbytime=_SORTBYTIME)
add_resource_pid(txt, set(pids))
remove_pidlist(tasksrem, pids)
def check_console_sem(tasksrem):
console_sem_addr = sym2addr("console_sem")
if (not console_sem_addr):
return
pidcomms = decode_semaphore(console_sem_addr, 0)
if (pidcomms):
print_header("Waiting on console_sem")
for pid, comm in pidcomms:
print("\t{:8d} {}".format(pid, comm))
remove_pidlist(tasksrem, [pid for pid, comm in pidcomms])
# Try to find a possible owner
__testfunc = "__console_unlock"
pids = _funcpids(__testfunc)
verifyFastSet(pids, __testfunc)
if (pids):
print(" Possible owners: {}".format(pids))
def check_memory_pressure(_funcpids):
subpids = _funcpids(__mp_names)
if (not subpids):
return False
if (len(subpids) < 100):
verifyFastSet(subpids, __mp_names)
d = defaultdict(int)
total = 0
T_table = TaskTable()
for pid in subpids:
t = T_table.getByTid(pid)
d[t.state] += 1
total += 1
if ("TASK_UNINTERRUPTIBLE" in d or total > 20):
pylog.warning("Memory pressure detected")
print(" *** {} ***".format(__mp_names))
for k, v in d.items():
print(" {:4d} in {} state".format(v, k))
return True