2 @message |
Performance problem
assert
CPU time ratio when sending COMPRESSABLE TEXTUAL DATA and WireCompression is ON vs OFF: EXPECTED
CPU time ratio when sending INCOMPRESSABLE BINARY DATA and WireCompression is ON vs OFF: EXPECTED
- CPU time ratio when WireCompression is OFF and sending TEXTUAL vs BINARY data: EXPECTED
+ CPU time ratio when WireCompression is OFF and sending TEXTUAL vs BINARY data: /* perf_issue_tag */ UNEXPECTED, more than 1.5
+ compressed_txt= [0.6875, 0.671875, 0.6875, 0.6875, 0.65625, 0.765625, 0.734375, 0.6875, 0.6875] min= 0.65625 max= 0.765625
+ compressed_bin= [0.78125, 0.71875, 0.6875, 0.75, 0.765625, 0.75, 0.765625, 0.703125, 0.703125] min= 0.6875 max= 0.78125
+ non_comprs_txt= [0.046875, 0.09375, 0.09375, 0.078125, 0.078125, 0.078125, 0.078125, 0.09375, 0.078125] min= 0.046875 max= 0.09375
+ non_comprs_bin= [0.125, 0.046875, 0.0625, 0.078125, 0.046875, 0.03125, 0.046875, 0.0625, 0.046875] min= 0.03125 max= 0.125
+ median(compressed_txt) / median(non_comprs_txt) = 8.8
+ median(compressed_bin) / median(non_comprs_bin) = 16.0
+ median(non_comprs_txt) / median(non_comprs_bin) = 1.6666666666666667
LOG DETAILS:
2025-06-29 09:59:50.028
2025-06-29 09:59:50.028 act = <firebird.qa.plugin.Action object at [hex]>
2025-06-29 09:59:50.028 capsys = <_pytest.capture.CaptureFixture object at [hex]>
2025-06-29 09:59:50.029
2025-06-29 09:59:50.029 @pytest.mark.version('>=3.0')
2025-06-29 09:59:50.029 def test_1(act: Action, capsys):
2025-06-29 09:59:50.029
2025-06-29 09:59:50.029 # OPTIONAL CHECK: minimal ratio between CPU user time when WireCompression = false
2025-06-29 09:59:50.029 # and engine sends to client: 1) 'IDEALLY COMPRESSABLE'; 2) 'ABSOLUTELY IMCOMPRESSIBLE' data.
2025-06-29 09:59:50.029 # This can be useful to estimate record-level compression: textual data can be compressed
2025-06-29 09:59:50.029 # very well, so its transfer must take much less time then for GEN_UUID.
2025-06-29 09:59:50.029 # Experiments show that this ratio can be on Windows in the scope 0.3.... 0.8,
2025-06-29 09:59:50.029 # but on Linux it can be 1.0 or even slightly more then 1(!)
2025-06-29 09:59:50.029 # Windows: 0.500; 0.600; 0.571; 0.428; 0.714; 0.667; 0.625; 0.429; 0.571 // 4.0.1
2025-06-29 09:59:50.029 # 0.454; 0.357; 0.357; 0.500; 0.250; 0.385; 0.333; 0.200; 0.500 // 3.0.8
2025-06-29 09:59:50.029 # Linux: 0.684; 1.000; 1.000; 1.067; 0.867; 0.813; 0.800; 0.777; 0.750 // 4.0.1
2025-06-29 09:59:50.029 # 0.928; 1.000; 0.933; 1.000; 1.077; 0.750; 0.938; 0.929; 0.928 // 3.0.8
2025-06-29 09:59:50.029 if act.is_version('<4'):
2025-06-29 09:59:50.029 # 16.09.2022, 4.3.0.8 Classic: Windows -> 1.2
2025-06-29 09:59:50.030 MAX_CPU_RATIO_TXT2BIN_WCOMPR_OFF = 1.1 if platform.system() == 'Linux' else 1.5
2025-06-29 09:59:50.030 else:
2025-06-29 09:59:50.030 # 05.03.2023, 5.0.0.970, SS, Linux: 1.1 --> 1.3
2025-06-29 09:59:50.030 # 05.04.2023, 5.0.0.1001, SS, WIndows: 0.95 --> 1.5
2025-06-29 09:59:50.030 MAX_CPU_RATIO_TXT2BIN_WCOMPR_OFF = 1.3 if platform.system() == 'Linux' else 1.5
2025-06-29 09:59:50.030
2025-06-29 09:59:50.030 # Register Firebird server (D:\FB\probes\fid-set-dpb-probe-05x.py)
2025-06-29 09:59:50.030 srv_cfg = driver_config.register_server(name = 'test_srv_core_0733', config = '')
2025-06-29 09:59:50.030
2025-06-29 09:59:50.030 #srv_config_key_value_text = \
2025-06-29 09:59:50.030 #f"""
2025-06-29 09:59:50.030 # [test_srv_core_0733]
2025-06-29 09:59:50.030 # protocol = inet
2025-06-29 09:59:50.030 #"""
2025-06-29 09:59:50.031 #driver_config.register_server(name = 'test_srv_core_0733', config = srv_config_key_value_text)
2025-06-29 09:59:50.031 #db_cfg_object = driver_config.register_database(name = 'test_db_core_0733')
2025-06-29 09:59:50.031 #db_cfg_object.database.value = str(act.db.db_path)
2025-06-29 09:59:50.031
2025-06-29 09:59:50.031 benchmark_data = defaultdict(list)
2025-06-29 09:59:50.031
2025-06-29 09:59:50.031 for w_compr in (True, False):
2025-06-29 09:59:50.031
2025-06-29 09:59:50.031 db_cfg_name = f'test_db_core_0733__wcompr_{w_compr}'
2025-06-29 09:59:50.031 db_cfg_object = driver_config.register_database(name = db_cfg_name)
2025-06-29 09:59:50.031 db_cfg_object.server.value = srv_cfg.name
2025-06-29 09:59:50.031 # db_cfg_object.protocol.value = None / XNET / WNET -- these can not be used in this test!
2025-06-29 09:59:50.031 db_cfg_object.protocol.value = NetProtocol.INET
2025-06-29 09:59:50.031 db_cfg_object.database.value = str(act.db.db_path)
2025-06-29 09:59:50.031 db_cfg_object.config.value = f"""
2025-06-29 09:59:50.032 WireCrypt = Disabled
2025-06-29 09:59:50.032 WireCompression = {w_compr}
2025-06-29 09:59:50.032 """
2025-06-29 09:59:50.032 for i in range(0, N_MEASURES):
2025-06-29 09:59:50.032 with connect(db_cfg_name, user = act.db.user, password = act.db.password) as con:
2025-06-29 09:59:50.032 prot_name = db_cfg_object.protocol.value.name if db_cfg_object.protocol.value else 'Embedded'
2025-06-29 09:59:50.032 assert w_compr == con.info.is_compressed(), f'Protocol: {prot_name} - can not be used to measure wire_compression'
2025-06-29 09:59:50.032
2025-06-29 09:59:50.032 with con.cursor() as cur:
2025-06-29 09:59:50.032 cur.execute('select mon$server_pid, mon$remote_protocol as p from mon$attachments where mon$attachment_id = current_connection')
2025-06-29 09:59:50.032 for r in cur:
2025-06-29 09:59:50.032 fb_pid, connection_protocol = r
2025-06-29 09:59:50.032 assert connection_protocol.startswith('TCP'), f'Invalid connection protocol: {connection_protocol}'
2025-06-29 09:59:50.032
2025-06-29 09:59:50.032 for data_source in ('t_common_text', 't_binary_data'):
2025-06-29 09:59:50.033 cur.execute('select s from ' + data_source)
2025-06-29 09:59:50.033
2025-06-29 09:59:50.033 fb_info_a = psutil.Process(fb_pid).cpu_times()
2025-06-29 09:59:50.033 for r in cur:
2025-06-29 09:59:50.033 # *** FULL FETCH ***
2025-06-29 09:59:50.033 pass
2025-06-29 09:59:50.033 fb_info_b = psutil.Process(fb_pid).cpu_times()
2025-06-29 09:59:50.033
2025-06-29 09:59:50.033 k = ('WireCompression=%d' % (1 if w_compr else 0), 'DataSource='+data_source)
2025-06-29 09:59:50.033 benchmark_data[k] += fb_info_b.user - fb_info_a.user,
2025-06-29 09:59:50.033
2025-06-29 09:59:50.033
2025-06-29 09:59:50.033 compressed_txt = [ v for k,v in benchmark_data.items() if k[0] == 'WireCompression=1' and k[1] == 'DataSource=t_common_text'][0]
2025-06-29 09:59:50.033 compressed_bin = [ v for k,v in benchmark_data.items() if k[0] == 'WireCompression=1' and k[1] == 'DataSource=t_binary_data'][0]
2025-06-29 09:59:50.033 non_comprs_txt = [ v for k,v in benchmark_data.items() if k[0] == 'WireCompression=0' and k[1] == 'DataSource=t_common_text'][0]
2025-06-29 09:59:50.034 non_comprs_bin = [ v for k,v in benchmark_data.items() if k[0] == 'WireCompression=0' and k[1] == 'DataSource=t_binary_data'][0]
2025-06-29 09:59:50.034
2025-06-29 09:59:50.034 cpu_txt_wcompr_ON_vs_OFF = median(compressed_txt) / max(0.00001, median(non_comprs_txt))
2025-06-29 09:59:50.034 cpu_bin_wcompr_ON_vs_OFF = median(compressed_bin) / max(0.00001, median(non_comprs_bin))
2025-06-29 09:59:50.034 cpu_txt2bin_wcompr_OFF = median(non_comprs_txt) / max(0.00001, median(non_comprs_bin))
2025-06-29 09:59:50.034
2025-06-29 09:59:50.034 msg_result1 = 'CPU time ratio when sending %s and WireCompression is ON vs OFF: %s'
2025-06-29 09:59:50.034 what_sent1 = 'COMPRESSABLE TEXTUAL DATA'
2025-06-29 09:59:50.034 all_fine = 1
2025-06-29 09:59:50.034 if cpu_txt_wcompr_ON_vs_OFF > MIN_CPU_RATIO_TXT_WCOMPR_ON_OFF:
2025-06-29 09:59:50.034 print(msg_result1 % (what_sent1, 'EXPECTED') )
2025-06-29 09:59:50.034 else:
2025-06-29 09:59:50.034 print(msg_result1 % (what_sent1, '/* perf_issue_tag */ UNEXPECTED less than '+str(MIN_CPU_RATIO_TXT_WCOMPR_ON_OFF)) )
2025-06-29 09:59:50.034 all_fine = 0
2025-06-29 09:59:50.035
2025-06-29 09:59:50.035
2025-06-29 09:59:50.035 what_sent2 = 'INCOMPRESSABLE BINARY DATA'
2025-06-29 09:59:50.035 if cpu_bin_wcompr_ON_vs_OFF > MIN_CPU_RATIO_BIN_WCOMPR_ON_OFF:
2025-06-29 09:59:50.035 print(msg_result1 % (what_sent2, 'EXPECTED') )
2025-06-29 09:59:50.035 else:
2025-06-29 09:59:50.035 print(msg_result1 % (what_sent2, '/* perf_issue_tag */ UNEXPECTED, less than '+str(MIN_CPU_RATIO_BIN_WCOMPR_ON_OFF)) )
2025-06-29 09:59:50.035 all_fine = 0
2025-06-29 09:59:50.035
2025-06-29 09:59:50.035
2025-06-29 09:59:50.035 msg_result2 = 'CPU time ratio when WireCompression is OFF and sending TEXTUAL vs BINARY data: %s'
2025-06-29 09:59:50.035 if cpu_txt2bin_wcompr_OFF <= MAX_CPU_RATIO_TXT2BIN_WCOMPR_OFF:
2025-06-29 09:59:50.035 print(msg_result2 % ('EXPECTED') )
2025-06-29 09:59:50.035 else:
2025-06-29 09:59:50.035 print(msg_result2 % ('/* perf_issue_tag */ UNEXPECTED, more than ' + str(MAX_CPU_RATIO_TXT2BIN_WCOMPR_OFF)) )
2025-06-29 09:59:50.035 all_fine = 0
2025-06-29 09:59:50.036
2025-06-29 09:59:50.036 if not all_fine:
2025-06-29 09:59:50.036 print('compressed_txt=',compressed_txt,' min=',min(compressed_txt),' max=',max(compressed_txt))
2025-06-29 09:59:50.036 print('compressed_bin=',compressed_bin,' min=',min(compressed_bin),' max=',max(compressed_bin))
2025-06-29 09:59:50.036 print('non_comprs_txt=',non_comprs_txt,' min=',min(non_comprs_txt),' max=',max(non_comprs_txt))
2025-06-29 09:59:50.036 print('non_comprs_bin=',non_comprs_bin,' min=',min(non_comprs_bin),' max=',max(non_comprs_bin))
2025-06-29 09:59:50.036
2025-06-29 09:59:50.036 print('median(compressed_txt) / median(non_comprs_txt) =',1.000 * median(compressed_txt) / max(0.00001, median(non_comprs_txt)) )
2025-06-29 09:59:50.036 print('median(compressed_bin) / median(non_comprs_bin) =',1.000 * median(compressed_bin) / max(0.00001, median(non_comprs_bin)) )
2025-06-29 09:59:50.036 print('median(non_comprs_txt) / median(non_comprs_bin) =',1.000 * median(non_comprs_txt) / max(0.00001, median(non_comprs_bin)) )
2025-06-29 09:59:50.036
2025-06-29 09:59:50.036
2025-06-29 09:59:50.036 expected_stdout = ''
2025-06-29 09:59:50.036 for f in (what_sent1, what_sent2):
2025-06-29 09:59:50.036 expected_stdout += ''.join( (msg_result1 % (f, 'EXPECTED'), '\n') )
2025-06-29 09:59:50.037 expected_stdout += (msg_result2 % 'EXPECTED')
2025-06-29 09:59:50.037
2025-06-29 09:59:50.037 act.expected_stdout = expected_stdout
2025-06-29 09:59:50.037 act.stdout = capsys.readouterr().out
2025-06-29 09:59:50.037 > assert act.clean_stdout == act.clean_expected_stdout
2025-06-29 09:59:50.037 E assert
2025-06-29 09:59:50.037 E CPU time ratio when sending COMPRESSABLE TEXTUAL DATA and WireCompression is ON vs OFF: EXPECTED
2025-06-29 09:59:50.037 E CPU time ratio when sending INCOMPRESSABLE BINARY DATA and WireCompression is ON vs OFF: EXPECTED
2025-06-29 09:59:50.037 E - CPU time ratio when WireCompression is OFF and sending TEXTUAL vs BINARY data: EXPECTED
2025-06-29 09:59:50.037 E + CPU time ratio when WireCompression is OFF and sending TEXTUAL vs BINARY data: /* perf_issue_tag */ UNEXPECTED, more than 1.5
2025-06-29 09:59:50.037 E + compressed_txt= [0.6875, 0.671875, 0.6875, 0.6875, 0.65625, 0.765625, 0.734375, 0.6875, 0.6875] min= 0.65625 max= 0.765625
2025-06-29 09:59:50.037 E + compressed_bin= [0.78125, 0.71875, 0.6875, 0.75, 0.765625, 0.75, 0.765625, 0.703125, 0.703125] min= 0.6875 max= 0.78125
2025-06-29 09:59:50.037 E + non_comprs_txt= [0.046875, 0.09375, 0.09375, 0.078125, 0.078125, 0.078125, 0.078125, 0.09375, 0.078125] min= 0.046875 max= 0.09375
2025-06-29 09:59:50.037 E + non_comprs_bin= [0.125, 0.046875, 0.0625, 0.078125, 0.046875, 0.03125, 0.046875, 0.0625, 0.046875] min= 0.03125 max= 0.125
2025-06-29 09:59:50.038 E + median(compressed_txt) / median(non_comprs_txt) = 8.8
2025-06-29 09:59:50.038 E + median(compressed_bin) / median(non_comprs_bin) = 16.0
2025-06-29 09:59:50.038 E + median(non_comprs_txt) / median(non_comprs_bin) = 1.6666666666666667
2025-06-29 09:59:50.038
2025-06-29 09:59:50.038 tests\bugs\core_0733_test.py:254: AssertionError
2025-06-29 09:59:50.038 ---------------------------- Captured stdout setup ----------------------------
2025-06-29 09:59:50.038 Creating db: localhost:H:\QA\temp\qa2024.tmp\fbqa\test_173\test.fdb [page_size=None, sql_dialect=None, charset='NONE', user=SYSDBA, password=masterkey]
|
3 #text |
act = <firebird.qa.plugin.Action pytest object at [hex]>
capsys = <_pytest.capture.CaptureFixture pytest object at [hex]>
@pytest.mark.version('>=3.0')
def test_1(act: Action, capsys):
# OPTIONAL CHECK: minimal ratio between CPU user time when WireCompression = false
# and engine sends to client: 1) 'IDEALLY COMPRESSABLE'; 2) 'ABSOLUTELY IMCOMPRESSIBLE' data.
# This can be useful to estimate record-level compression: textual data can be compressed
# very well, so its transfer must take much less time then for GEN_UUID.
# Experiments show that this ratio can be on Windows in the scope 0.3.... 0.8,
# but on Linux it can be 1.0 or even slightly more then 1(!)
# Windows: 0.500; 0.600; 0.571; 0.428; 0.714; 0.667; 0.625; 0.429; 0.571 // 4.0.1
# 0.454; 0.357; 0.357; 0.500; 0.250; 0.385; 0.333; 0.200; 0.500 // 3.0.8
# Linux: 0.684; 1.000; 1.000; 1.067; 0.867; 0.813; 0.800; 0.777; 0.750 // 4.0.1
# 0.928; 1.000; 0.933; 1.000; 1.077; 0.750; 0.938; 0.929; 0.928 // 3.0.8
if act.is_version('<4'):
# 16.09.2022, 4.3.0.8 Classic: Windows -> 1.2
MAX_CPU_RATIO_TXT2BIN_WCOMPR_OFF = 1.1 if platform.system() == 'Linux' else 1.5
else:
# 05.03.2023, 5.0.0.970, SS, Linux: 1.1 --> 1.3
# 05.04.2023, 5.0.0.1001, SS, WIndows: 0.95 --> 1.5
MAX_CPU_RATIO_TXT2BIN_WCOMPR_OFF = 1.3 if platform.system() == 'Linux' else 1.5
# Register Firebird server (D:\FB\probes\fid-set-dpb-probe-05x.py)
srv_cfg = driver_config.register_server(name = 'test_srv_core_0733', config = '')
#srv_config_key_value_text = \
#f"""
# [test_srv_core_0733]
# protocol = inet
#"""
#driver_config.register_server(name = 'test_srv_core_0733', config = srv_config_key_value_text)
#db_cfg_object = driver_config.register_database(name = 'test_db_core_0733')
#db_cfg_object.database.value = str(act.db.db_path)
benchmark_data = defaultdict(list)
for w_compr in (True, False):
db_cfg_name = f'test_db_core_0733__wcompr_{w_compr}'
db_cfg_object = driver_config.register_database(name = db_cfg_name)
db_cfg_object.server.value = srv_cfg.name
# db_cfg_object.protocol.value = None / XNET / WNET -- these can not be used in this test!
db_cfg_object.protocol.value = NetProtocol.INET
db_cfg_object.database.value = str(act.db.db_path)
db_cfg_object.config.value = f"""
WireCrypt = Disabled
WireCompression = {w_compr}
"""
for i in range(0, N_MEASURES):
with connect(db_cfg_name, user = act.db.user, password = act.db.password) as con:
prot_name = db_cfg_object.protocol.value.name if db_cfg_object.protocol.value else 'Embedded'
assert w_compr == con.info.is_compressed(), f'Protocol: {prot_name} - can not be used to measure wire_compression'
with con.cursor() as cur:
cur.execute('select mon$server_pid, mon$remote_protocol as p from mon$attachments where mon$attachment_id = current_connection')
for r in cur:
fb_pid, connection_protocol = r
assert connection_protocol.startswith('TCP'), f'Invalid connection protocol: {connection_protocol}'
for data_source in ('t_common_text', 't_binary_data'):
cur.execute('select s from ' + data_source)
fb_info_a = psutil.Process(fb_pid).cpu_times()
for r in cur:
# *** FULL FETCH ***
pass
fb_info_b = psutil.Process(fb_pid).cpu_times()
k = ('WireCompression=%d' % (1 if w_compr else 0), 'DataSource='+data_source)
benchmark_data[k] += fb_info_b.user - fb_info_a.user,
compressed_txt = [ v for k,v in benchmark_data.items() if k[0] == 'WireCompression=1' and k[1] == 'DataSource=t_common_text'][0]
compressed_bin = [ v for k,v in benchmark_data.items() if k[0] == 'WireCompression=1' and k[1] == 'DataSource=t_binary_data'][0]
non_comprs_txt = [ v for k,v in benchmark_data.items() if k[0] == 'WireCompression=0' and k[1] == 'DataSource=t_common_text'][0]
non_comprs_bin = [ v for k,v in benchmark_data.items() if k[0] == 'WireCompression=0' and k[1] == 'DataSource=t_binary_data'][0]
cpu_txt_wcompr_ON_vs_OFF = median(compressed_txt) / max(0.00001, median(non_comprs_txt))
cpu_bin_wcompr_ON_vs_OFF = median(compressed_bin) / max(0.00001, median(non_comprs_bin))
cpu_txt2bin_wcompr_OFF = median(non_comprs_txt) / max(0.00001, median(non_comprs_bin))
msg_result1 = 'CPU time ratio when sending %s and WireCompression is ON vs OFF: %s'
what_sent1 = 'COMPRESSABLE TEXTUAL DATA'
all_fine = 1
if cpu_txt_wcompr_ON_vs_OFF > MIN_CPU_RATIO_TXT_WCOMPR_ON_OFF:
print(msg_result1 % (what_sent1, 'EXPECTED') )
else:
print(msg_result1 % (what_sent1, '/* perf_issue_tag */ UNEXPECTED less than '+str(MIN_CPU_RATIO_TXT_WCOMPR_ON_OFF)) )
all_fine = 0
what_sent2 = 'INCOMPRESSABLE BINARY DATA'
if cpu_bin_wcompr_ON_vs_OFF > MIN_CPU_RATIO_BIN_WCOMPR_ON_OFF:
print(msg_result1 % (what_sent2, 'EXPECTED') )
else:
print(msg_result1 % (what_sent2, '/* perf_issue_tag */ UNEXPECTED, less than '+str(MIN_CPU_RATIO_BIN_WCOMPR_ON_OFF)) )
all_fine = 0
msg_result2 = 'CPU time ratio when WireCompression is OFF and sending TEXTUAL vs BINARY data: %s'
if cpu_txt2bin_wcompr_OFF <= MAX_CPU_RATIO_TXT2BIN_WCOMPR_OFF:
print(msg_result2 % ('EXPECTED') )
else:
print(msg_result2 % ('/* perf_issue_tag */ UNEXPECTED, more than ' + str(MAX_CPU_RATIO_TXT2BIN_WCOMPR_OFF)) )
all_fine = 0
if not all_fine:
print('compressed_txt=',compressed_txt,' min=',min(compressed_txt),' max=',max(compressed_txt))
print('compressed_bin=',compressed_bin,' min=',min(compressed_bin),' max=',max(compressed_bin))
print('non_comprs_txt=',non_comprs_txt,' min=',min(non_comprs_txt),' max=',max(non_comprs_txt))
print('non_comprs_bin=',non_comprs_bin,' min=',min(non_comprs_bin),' max=',max(non_comprs_bin))
print('median(compressed_txt) / median(non_comprs_txt) =',1.000 * median(compressed_txt) / max(0.00001, median(non_comprs_txt)) )
print('median(compressed_bin) / median(non_comprs_bin) =',1.000 * median(compressed_bin) / max(0.00001, median(non_comprs_bin)) )
print('median(non_comprs_txt) / median(non_comprs_bin) =',1.000 * median(non_comprs_txt) / max(0.00001, median(non_comprs_bin)) )
expected_stdout = ''
for f in (what_sent1, what_sent2):
expected_stdout += ''.join( (msg_result1 % (f, 'EXPECTED'), '\n') )
expected_stdout += (msg_result2 % 'EXPECTED')
act.expected_stdout = expected_stdout
act.stdout = capsys.readouterr().out
> assert act.clean_stdout == act.clean_expected_stdout
E assert
E CPU time ratio when sending COMPRESSABLE TEXTUAL DATA and WireCompression is ON vs OFF: EXPECTED
E CPU time ratio when sending INCOMPRESSABLE BINARY DATA and WireCompression is ON vs OFF: EXPECTED
E - CPU time ratio when WireCompression is OFF and sending TEXTUAL vs BINARY data: EXPECTED
E + CPU time ratio when WireCompression is OFF and sending TEXTUAL vs BINARY data: /* perf_issue_tag */ UNEXPECTED, more than 1.5
E + compressed_txt= [0.6875, 0.671875, 0.6875, 0.6875, 0.65625, 0.765625, 0.734375, 0.6875, 0.6875] min= 0.65625 max= 0.765625
E + compressed_bin= [0.78125, 0.71875, 0.6875, 0.75, 0.765625, 0.75, 0.765625, 0.703125, 0.703125] min= 0.6875 max= 0.78125
E + non_comprs_txt= [0.046875, 0.09375, 0.09375, 0.078125, 0.078125, 0.078125, 0.078125, 0.09375, 0.078125] min= 0.046875 max= 0.09375
E + non_comprs_bin= [0.125, 0.046875, 0.0625, 0.078125, 0.046875, 0.03125, 0.046875, 0.0625, 0.046875] min= 0.03125 max= 0.125
E + median(compressed_txt) / median(non_comprs_txt) = 8.8
E + median(compressed_bin) / median(non_comprs_bin) = 16.0
E + median(non_comprs_txt) / median(non_comprs_bin) = 1.6666666666666667
tests\bugs\core_0733_test.py:254: AssertionError
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