312 lines
7.8 KiB
Python
312 lines
7.8 KiB
Python
|
# report time spent in compaction
|
||
|
|
# Licensed under the terms of the GNU GPL License version 2
|
||
|
|
|
||
|
|
# testing:
|
||
|
|
# 'echo 1 > /proc/sys/vm/compact_memory' to force compaction of all zones
|
||
|
|
|
||
|
|
import os
|
||
|
|
import sys
|
||
|
|
import re
|
||
|
|
|
||
|
|
import signal
|
||
|
|
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
|
||
|
|
|
||
|
|
usage = "usage: perf script report compaction-times.py -- [-h] [-u] [-p|-pv] [-t | [-m] [-fs] [-ms]] [pid|pid-range|comm-regex]\n"
|
||
|
|
|
||
|
|
class popt:
|
||
|
|
DISP_DFL = 0
|
||
|
|
DISP_PROC = 1
|
||
|
|
DISP_PROC_VERBOSE=2
|
||
|
|
|
||
|
|
class topt:
|
||
|
|
DISP_TIME = 0
|
||
|
|
DISP_MIG = 1
|
||
|
|
DISP_ISOLFREE = 2
|
||
|
|
DISP_ISOLMIG = 4
|
||
|
|
DISP_ALL = 7
|
||
|
|
|
||
|
|
class comm_filter:
|
||
|
|
def __init__(self, re):
|
||
|
|
self.re = re
|
||
|
|
|
||
|
|
def filter(self, pid, comm):
|
||
|
|
m = self.re.search(comm)
|
||
|
|
return m == None or m.group() == ""
|
||
|
|
|
||
|
|
class pid_filter:
|
||
|
|
def __init__(self, low, high):
|
||
|
|
self.low = (0 if low == "" else int(low))
|
||
|
|
self.high = (0 if high == "" else int(high))
|
||
|
|
|
||
|
|
def filter(self, pid, comm):
|
||
|
|
return not (pid >= self.low and (self.high == 0 or pid <= self.high))
|
||
|
|
|
||
|
|
def set_type(t):
|
||
|
|
global opt_disp
|
||
|
|
opt_disp = (t if opt_disp == topt.DISP_ALL else opt_disp|t)
|
||
|
|
|
||
|
|
def ns(sec, nsec):
|
||
|
|
return (sec * 1000000000) + nsec
|
||
|
|
|
||
|
|
def time(ns):
|
||
|
|
return "%dns" % ns if opt_ns else "%dus" % (round(ns, -3) / 1000)
|
||
|
|
|
||
|
|
class pair:
|
||
|
|
def __init__(self, aval, bval, alabel = None, blabel = None):
|
||
|
|
self.alabel = alabel
|
||
|
|
self.blabel = blabel
|
||
|
|
self.aval = aval
|
||
|
|
self.bval = bval
|
||
|
|
|
||
|
|
def __add__(self, rhs):
|
||
|
|
self.aval += rhs.aval
|
||
|
|
self.bval += rhs.bval
|
||
|
|
return self
|
||
|
|
|
||
|
|
def __str__(self):
|
||
|
|
return "%s=%d %s=%d" % (self.alabel, self.aval, self.blabel, self.bval)
|
||
|
|
|
||
|
|
class cnode:
|
||
|
|
def __init__(self, ns):
|
||
|
|
self.ns = ns
|
||
|
|
self.migrated = pair(0, 0, "moved", "failed")
|
||
|
|
self.fscan = pair(0,0, "scanned", "isolated")
|
||
|
|
self.mscan = pair(0,0, "scanned", "isolated")
|
||
|
|
|
||
|
|
def __add__(self, rhs):
|
||
|
|
self.ns += rhs.ns
|
||
|
|
self.migrated += rhs.migrated
|
||
|
|
self.fscan += rhs.fscan
|
||
|
|
self.mscan += rhs.mscan
|
||
|
|
return self
|
||
|
|
|
||
|
|
def __str__(self):
|
||
|
|
prev = 0
|
||
|
|
s = "%s " % time(self.ns)
|
||
|
|
if (opt_disp & topt.DISP_MIG):
|
||
|
|
s += "migration: %s" % self.migrated
|
||
|
|
prev = 1
|
||
|
|
if (opt_disp & topt.DISP_ISOLFREE):
|
||
|
|
s += "%sfree_scanner: %s" % (" " if prev else "", self.fscan)
|
||
|
|
prev = 1
|
||
|
|
if (opt_disp & topt.DISP_ISOLMIG):
|
||
|
|
s += "%smigration_scanner: %s" % (" " if prev else "", self.mscan)
|
||
|
|
return s
|
||
|
|
|
||
|
|
def complete(self, secs, nsecs):
|
||
|
|
self.ns = ns(secs, nsecs) - self.ns
|
||
|
|
|
||
|
|
def increment(self, migrated, fscan, mscan):
|
||
|
|
if (migrated != None):
|
||
|
|
self.migrated += migrated
|
||
|
|
if (fscan != None):
|
||
|
|
self.fscan += fscan
|
||
|
|
if (mscan != None):
|
||
|
|
self.mscan += mscan
|
||
|
|
|
||
|
|
|
||
|
|
class chead:
|
||
|
|
heads = {}
|
||
|
|
val = cnode(0);
|
||
|
|
fobj = None
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def add_filter(cls, filter):
|
||
|
|
cls.fobj = filter
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def create_pending(cls, pid, comm, start_secs, start_nsecs):
|
||
|
|
filtered = 0
|
||
|
|
try:
|
||
|
|
head = cls.heads[pid]
|
||
|
|
filtered = head.is_filtered()
|
||
|
|
except KeyError:
|
||
|
|
if cls.fobj != None:
|
||
|
|
filtered = cls.fobj.filter(pid, comm)
|
||
|
|
head = cls.heads[pid] = chead(comm, pid, filtered)
|
||
|
|
|
||
|
|
if not filtered:
|
||
|
|
head.mark_pending(start_secs, start_nsecs)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def increment_pending(cls, pid, migrated, fscan, mscan):
|
||
|
|
head = cls.heads[pid]
|
||
|
|
if not head.is_filtered():
|
||
|
|
if head.is_pending():
|
||
|
|
head.do_increment(migrated, fscan, mscan)
|
||
|
|
else:
|
||
|
|
sys.stderr.write("missing start compaction event for pid %d\n" % pid)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def complete_pending(cls, pid, secs, nsecs):
|
||
|
|
head = cls.heads[pid]
|
||
|
|
if not head.is_filtered():
|
||
|
|
if head.is_pending():
|
||
|
|
head.make_complete(secs, nsecs)
|
||
|
|
else:
|
||
|
|
sys.stderr.write("missing start compaction event for pid %d\n" % pid)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def gen(cls):
|
||
|
|
if opt_proc != popt.DISP_DFL:
|
||
|
|
for i in cls.heads:
|
||
|
|
yield cls.heads[i]
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def str(cls):
|
||
|
|
return cls.val
|
||
|
|
|
||
|
|
def __init__(self, comm, pid, filtered):
|
||
|
|
self.comm = comm
|
||
|
|
self.pid = pid
|
||
|
|
self.val = cnode(0)
|
||
|
|
self.pending = None
|
||
|
|
self.filtered = filtered
|
||
|
|
self.list = []
|
||
|
|
|
||
|
|
def __add__(self, rhs):
|
||
|
|
self.ns += rhs.ns
|
||
|
|
self.val += rhs.val
|
||
|
|
return self
|
||
|
|
|
||
|
|
def mark_pending(self, secs, nsecs):
|
||
|
|
self.pending = cnode(ns(secs, nsecs))
|
||
|
|
|
||
|
|
def do_increment(self, migrated, fscan, mscan):
|
||
|
|
self.pending.increment(migrated, fscan, mscan)
|
||
|
|
|
||
|
|
def make_complete(self, secs, nsecs):
|
||
|
|
self.pending.complete(secs, nsecs)
|
||
|
|
chead.val += self.pending
|
||
|
|
|
||
|
|
if opt_proc != popt.DISP_DFL:
|
||
|
|
self.val += self.pending
|
||
|
|
|
||
|
|
if opt_proc == popt.DISP_PROC_VERBOSE:
|
||
|
|
self.list.append(self.pending)
|
||
|
|
self.pending = None
|
||
|
|
|
||
|
|
def enumerate(self):
|
||
|
|
if opt_proc == popt.DISP_PROC_VERBOSE and not self.is_filtered():
|
||
|
|
for i, pelem in enumerate(self.list):
|
||
|
|
sys.stdout.write("%d[%s].%d: %s\n" % (self.pid, self.comm, i+1, pelem))
|
||
|
|
|
||
|
|
def is_pending(self):
|
||
|
|
return self.pending != None
|
||
|
|
|
||
|
|
def is_filtered(self):
|
||
|
|
return self.filtered
|
||
|
|
|
||
|
|
def display(self):
|
||
|
|
if not self.is_filtered():
|
||
|
|
sys.stdout.write("%d[%s]: %s\n" % (self.pid, self.comm, self.val))
|
||
|
|
|
||
|
|
|
||
|
|
def trace_end():
|
||
|
|
sys.stdout.write("total: %s\n" % chead.str())
|
||
|
|
for i in chead.gen():
|
||
|
|
i.display(),
|
||
|
|
i.enumerate()
|
||
|
|
|
||
|
|
def compaction__mm_compaction_migratepages(event_name, context, common_cpu,
|
||
|
|
common_secs, common_nsecs, common_pid, common_comm,
|
||
|
|
common_callchain, nr_migrated, nr_failed):
|
||
|
|
|
||
|
|
chead.increment_pending(common_pid,
|
||
|
|
pair(nr_migrated, nr_failed), None, None)
|
||
|
|
|
||
|
|
def compaction__mm_compaction_isolate_freepages(event_name, context, common_cpu,
|
||
|
|
common_secs, common_nsecs, common_pid, common_comm,
|
||
|
|
common_callchain, start_pfn, end_pfn, nr_scanned, nr_taken):
|
||
|
|
|
||
|
|
chead.increment_pending(common_pid,
|
||
|
|
None, pair(nr_scanned, nr_taken), None)
|
||
|
|
|
||
|
|
def compaction__mm_compaction_isolate_migratepages(event_name, context, common_cpu,
|
||
|
|
common_secs, common_nsecs, common_pid, common_comm,
|
||
|
|
common_callchain, start_pfn, end_pfn, nr_scanned, nr_taken):
|
||
|
|
|
||
|
|
chead.increment_pending(common_pid,
|
||
|
|
None, None, pair(nr_scanned, nr_taken))
|
||
|
|
|
||
|
|
def compaction__mm_compaction_end(event_name, context, common_cpu,
|
||
|
|
common_secs, common_nsecs, common_pid, common_comm,
|
||
|
|
common_callchain, zone_start, migrate_start, free_start, zone_end,
|
||
|
|
sync, status):
|
||
|
|
|
||
|
|
chead.complete_pending(common_pid, common_secs, common_nsecs)
|
||
|
|
|
||
|
|
def compaction__mm_compaction_begin(event_name, context, common_cpu,
|
||
|
|
common_secs, common_nsecs, common_pid, common_comm,
|
||
|
|
common_callchain, zone_start, migrate_start, free_start, zone_end,
|
||
|
|
sync):
|
||
|
|
|
||
|
|
chead.create_pending(common_pid, common_comm, common_secs, common_nsecs)
|
||
|
|
|
||
|
|
def pr_help():
|
||
|
|
global usage
|
||
|
|
|
||
|
|
sys.stdout.write(usage)
|
||
|
|
sys.stdout.write("\n")
|
||
|
|
sys.stdout.write("-h display this help\n")
|
||
|
|
sys.stdout.write("-p display by process\n")
|
||
|
|
sys.stdout.write("-pv display by process (verbose)\n")
|
||
|
|
sys.stdout.write("-t display stall times only\n")
|
||
|
|
sys.stdout.write("-m display stats for migration\n")
|
||
|
|
sys.stdout.write("-fs display stats for free scanner\n")
|
||
|
|
sys.stdout.write("-ms display stats for migration scanner\n")
|
||
|
|
sys.stdout.write("-u display results in microseconds (default nanoseconds)\n")
|
||
|
|
|
||
|
|
|
||
|
|
comm_re = None
|
||
|
|
pid_re = None
|
||
|
|
pid_regex = "^(\d*)-(\d*)$|^(\d*)$"
|
||
|
|
|
||
|
|
opt_proc = popt.DISP_DFL
|
||
|
|
opt_disp = topt.DISP_ALL
|
||
|
|
|
||
|
|
opt_ns = True
|
||
|
|
|
||
|
|
argc = len(sys.argv) - 1
|
||
|
|
if argc >= 1:
|
||
|
|
pid_re = re.compile(pid_regex)
|
||
|
|
|
||
|
|
for i, opt in enumerate(sys.argv[1:]):
|
||
|
|
if opt[0] == "-":
|
||
|
|
if opt == "-h":
|
||
|
|
pr_help()
|
||
|
|
exit(0);
|
||
|
|
elif opt == "-p":
|
||
|
|
opt_proc = popt.DISP_PROC
|
||
|
|
elif opt == "-pv":
|
||
|
|
opt_proc = popt.DISP_PROC_VERBOSE
|
||
|
|
elif opt == '-u':
|
||
|
|
opt_ns = False
|
||
|
|
elif opt == "-t":
|
||
|
|
set_type(topt.DISP_TIME)
|
||
|
|
elif opt == "-m":
|
||
|
|
set_type(topt.DISP_MIG)
|
||
|
|
elif opt == "-fs":
|
||
|
|
set_type(topt.DISP_ISOLFREE)
|
||
|
|
elif opt == "-ms":
|
||
|
|
set_type(topt.DISP_ISOLMIG)
|
||
|
|
else:
|
||
|
|
sys.exit(usage)
|
||
|
|
|
||
|
|
elif i == argc - 1:
|
||
|
|
m = pid_re.search(opt)
|
||
|
|
if m != None and m.group() != "":
|
||
|
|
if m.group(3) != None:
|
||
|
|
f = pid_filter(m.group(3), m.group(3))
|
||
|
|
else:
|
||
|
|
f = pid_filter(m.group(1), m.group(2))
|
||
|
|
else:
|
||
|
|
try:
|
||
|
|
comm_re=re.compile(opt)
|
||
|
|
except:
|
||
|
|
sys.stderr.write("invalid regex '%s'" % opt)
|
||
|
|
sys.exit(usage)
|
||
|
|
f = comm_filter(comm_re)
|
||
|
|
|
||
|
|
chead.add_filter(f)
|