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zdtm: Check pages stats after dump

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After dump command -- verify that the amount of bytes counted in
stats-dump matches the real sizes of pages-*.img files.

Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Acked-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrei Vagin <avagin@gmail.com>
This commit is contained in:
Pavel Emelianov
2019-05-23 08:59:05 +00:00
committed by Andrei Vagin
parent 72ce634f43
commit b336fa2e32
1 changed files with 23 additions and 3 deletions
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26
test/zdtm.py
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@@ -1098,13 +1098,32 @@ class criu:
else:
raise test_fail_exc("CRIU %s" % action)
def __stats_file(self, action):
return os.path.join(self.__ddir(), "stats-%s" % action)
def show_stats(self, action):
if not self.__show_stats:
return
subprocess.Popen([self.__crit_bin, "show",
os.path.join(self.__dump_path,
str(self.__iter), "stats-%s" % action)]).wait()
subprocess.Popen([self.__crit_bin, "show", self.__stats_file(action)]).wait()
def check_pages_counts(self):
stats_written = -1
with open(self.__stats_file("dump"), 'rb') as stfile:
stats = crpc.images.load(stfile)
stent = stats['entries'][0]['dump']
stats_written = int(stent['shpages_written']) + int(stent['pages_written'])
real_written = 0
for f in os.listdir(self.__ddir()):
if f.startswith('pages-'):
real_written += os.path.getsize(os.path.join(self.__ddir(), f))
r_pages = real_written / 4096
r_off = real_written % 4096
if (stats_written != r_pages) or (r_off != 0):
print("ERROR: bad page counts, stats = %d real = %d(%d)" % (stats_written, r_pages, r_off))
raise test_fail_exc("page counts mismatch")
def dump(self, action, opts = []):
self.__iter += 1
@@ -1152,6 +1171,7 @@ class criu:
self.__criu_act("dedup", opts = [])
self.show_stats("dump")
self.check_pages_counts()
if self.__leave_stopped:
pstree_check_stopped(self.__test.getpid())