Compare commits

AST compact size (buildDeclTree)

Factor

compact size MiB

phase=buildDeclTree

*mean*	0.203
σ	0.000
min	0.203
max	0.203

AST compact size (macro expansion)

Factor

compact size MiB

phase=macro expansion

*mean*	5.301
σ	0.000
min	5.301
max	5.301

AST compact size (parser)

Factor

compact size MiB

phase=parser

*mean*	5.176
σ	0.000
min	5.176
max	5.176

AST compact size (processProdDef Decls)

Factor

compact size MiB

phase=processProdDef Decls

*mean*	5.676
σ	0.000
min	5.676
max	5.676

AST compact size (processProdDef)

Factor

compact size MiB

phase=processProdDef

*mean*	446.883-558.664=-111.781
σ	0.000
min	446.883-558.664=-111.781
max	446.883-558.664=-111.781

AST compact size (renaming)

Factor

compact size MiB

phase=renaming

*mean*	5.488
σ	0.000
min	5.488
max	5.488

AST compact size (type checker)

Factor

compact size MiB

phase=type checker

*mean*	6.645
σ	0.000
min	6.645
max	6.645

Aggregation: measureAggregations

Factor

allocated MiB

peak allocated MiB

time_s

cache=n

dps=1

iters=10

policies=100

*mean*	54.775-54.881=-0.106
σ	0.362-0.360=0.003
min	54.632-54.737=-0.105
max	55.806-55.904=-0.098

*mean*	418.000-416.000=2.000
σ	0.000
min	418.000-416.000=2.000
max	418.000-416.000=2.000

*mean*	0.141-0.141=0.001
σ	0.004-0.005=-0.001
min	0.139-0.136=0.003
max	0.148-0.148=0.000

cache=y

dps=1

iters=10

policies=100

*mean*	43.774-43.851=-0.077
σ	0.006-0.007=-0.000
min	43.761-43.841=-0.080
max	43.782-43.861=-0.079

*mean*	418.400-416.000=2.400
σ	0.516-0.000=0.516
min	418.000-416.000=2.000
max	419.000-416.000=3.000

*mean*	0.124-0.126=-0.002
σ	0.004-0.005=-0.001
min	0.120-0.121=-0.001
max	0.133-0.134=-0.001

CSV - indexed operations

Factor

allocated MiB

peak allocated MiB

time (ms)

op=column_set() on indexed

*mean*	36.617-36.618=-0.001
σ	0.000-0.002=-0.002
min	36.617-36.616=0.001
max	36.618-36.620=-0.003

*mean*	4580.000-4041.250=538.750
σ	2254.937-2007.312=247.626
min	1485.000-1218.000=267.000
max	7400.000-7143.000=257.000

*mean*	13.556-13.459=0.097
σ	3.629-1.917=1.712
min	11.942-12.477=-0.535
max	22.457-18.174=4.283

op=column_set() on indexed, repeat

*mean*	36.617-36.618=-0.001
σ	0.000-0.002=-0.002
min	36.617-36.616=0.001
max	36.618-36.620=-0.003

*mean*	4580.000-4041.250=538.750
σ	2254.937-2007.312=247.626
min	1485.000-1218.000=267.000
max	7400.000-7143.000=257.000

*mean*	14.088-13.646=0.442
σ	3.514-1.936=1.578
min	12.628-12.130=0.499
max	22.772-18.350=4.422

op=table_records(), no indexes

*mean*	41.948-41.930=0.018
σ	0.002-0.002=0.000
min	41.946-41.928=0.018
max	41.950-41.932=0.018

*mean*	7400.000-7143.000=257.000
σ	0.000
min	7400.000-7143.000=257.000
max	7400.000-7143.000=257.000

*mean*	10.944-15.143=-4.200
σ	0.094-0.176=-0.082
min	10.820-14.935=-4.115
max	11.086-15.433=-4.347

op=table_records(), repeat

*mean*	41.933-41.929=0.003
σ	0.000-0.002=-0.002
min	41.933-41.927=0.005
max	41.934-41.932=0.001

*mean*	4164.250-4041.250=123.000
σ	1946.207-2007.312=-61.105
min	1485.000-1218.000=267.000
max	7400.000-7143.000=257.000

*mean*	11.547-14.355=-2.808
σ	1.712-1.901=-0.189
min	10.730-10.941=-0.211
max	15.755-16.226=-0.471

op=vertical_lookup_list() on indexed, after table_records()

*mean*	27.655-27.654=0.002
σ	0.136-0.136=0.000
min	27.606-27.604=0.002
max	27.993-27.991=0.002

*mean*	4164.250-4041.250=123.000
σ	1946.207-2007.312=-61.105
min	1485.000-1218.000=267.000
max	7400.000-7143.000=257.000

*mean*	9.244-9.863=-0.619
σ	1.337-1.682=-0.345
min	8.013-8.668=-0.655
max	12.443-12.713=-0.270

op=vertical_lookup_list() on indexed, after table_records(), repeat

*mean*	26.406-26.401=0.005
σ	0.000-0.002=-0.002
min	26.406-26.400=0.006
max	26.406-26.404=0.002

*mean*	4164.250-4041.250=123.000
σ	1946.207-2007.312=-61.105
min	1485.000-1218.000=267.000
max	7400.000-7143.000=257.000

*mean*	7.122-7.775=-0.653
σ	0.980-1.639=-0.659
min	6.424-6.604=-0.179
max	9.487-10.592=-1.105

op=vertical_lookup_row_list() on 2 indexed

*mean*	25.681-25.668=0.013
σ	0.003-0.004=-0.001
min	25.680-25.665=0.014
max	25.688-25.678=0.010

*mean*	4580.000-4041.250=538.750
σ	2254.937-2007.312=247.626
min	1485.000-1218.000=267.000
max	7400.000-7143.000=257.000

*mean*	6.250-6.176=0.075
σ	0.868-0.573=0.295
min	5.845-5.739=0.106
max	8.391-7.564=0.826

op=vertical_lookup_row_list() on 3 (1 unindexed)

*mean*	25.984-25.970=0.015
σ	0.000-0.002=-0.001
min	25.984-25.969=0.016
max	25.985-25.972=0.013

*mean*	4580.000-4041.250=538.750
σ	2254.937-2007.312=247.626
min	1485.000-1218.000=267.000
max	7400.000-7143.000=257.000

*mean*	5.961-5.967=-0.005
σ	0.482-0.575=-0.093
min	5.678-5.698=-0.020
max	7.137-7.381=-0.243

CSV - loading a lazy table

Factor

allocated MiB

peak allocated MiB

time (ms)

op=load_product(), no indexes

*mean*	1021.627-1021.613=0.014
σ	0.002-0.002=-0.000
min	1021.625-1021.612=0.013
max	1021.629-1021.616=0.013

*mean*	7400.000-7143.000=257.000
σ	0.000
min	7400.000-7143.000=257.000
max	7400.000-7143.000=257.000

*mean*	360.221-374.979=-14.758
σ	41.743-84.162=-42.419
min	343.094-341.356=1.738
max	463.440-583.168=-119.728

op=load_product(), with indexes

*mean*	3495.878-7917.792=-4421.914
σ	0.469-0.469=-0.001
min	3495.713-7917.625=-4421.912
max	3497.038-7918.954=-4421.916

*mean*	3745.000-3273.375=471.625
σ	2297.906-1823.365=474.540
min	720.000-809.000=-89.000
max	7400.000-5621.000=1779.000

*mean*	1621.343-3743.249=-2121.905
σ	547.800-1233.020=-685.220
min	1393.163-3070.330=-1677.167
max	2969.134-6170.281=-3201.147

CSV - unindexed operations

Factor

allocated MiB

peak allocated MiB

time (ms)

op=column_set() on unindexed, dense

*mean*	62.077
σ	0.002
min	62.076
max	62.080

*mean*	4041.250
σ	2007.312
min	1218.000
max	7143.000

*mean*	89.585
σ	22.597
min	71.534
max	127.023

op=column_set() on unindexed, dense, minor warmup

*mean*	107.854
σ	0.000
min	107.853
max	107.855

*mean*	4398.750
σ	2226.313
min	1485.000
max	7400.000

*mean*	189.697
σ	144.122
min	126.192
max	542.976

op=column_set() on unindexed, dense, repeat

*mean*	62.082
σ	0.000
min	62.081
max	62.082

*mean*	4580.000
σ	2254.937
min	1485.000
max	7400.000

*mean*	122.066
σ	221.715
min	41.519
max	670.766

op=vertical_lookup_list() on unindexed missing Int

*mean*	40.946
σ	0.002
min	40.945
max	40.950

*mean*	7143.000
σ	0.000
min	7143.000
max	7143.000

*mean*	61.561
σ	0.437
min	60.888
max	62.134

op=vertical_lookup_list() repeated on unindexed missing Int

*mean*	40.948
σ	0.002
min	40.947
max	40.950

*mean*	7400.000
σ	0.000
min	7400.000
max	7400.000

*mean*	22.214
σ	0.964
min	21.746
max	24.592

op=vertical_lookup_row_list() on unindexed small unique Int

*mean*	71.308-66.688=4.620
σ	0.002-0.002=-0.000
min	71.307-66.686=4.620
max	71.310-66.691=4.620

*mean*	7400.000-7143.000=257.000
σ	0.000
min	7400.000-7143.000=257.000
max	7400.000-7143.000=257.000

*mean*	247.466-99.245=148.221
σ	539.595-0.659=538.936
min	55.163-98.234=-43.070
max	1582.891-100.252=1482.640

CSV - warmup

Factor

allocated MiB

peak allocated MiB

time (ms)

op=table_records()

*mean*	4646.850-14217.171=-9570.321
σ	0.014-4.303=-4.290
min	4646.845-14215.575=-9568.730
max	4646.884-14227.820=-9580.936

*mean*	4164.250-4041.250=123.000
σ	1946.207-2007.312=-61.105
min	1485.000-1218.000=267.000
max	7400.000-7143.000=257.000

*mean*	3072.354-8006.178=-4933.824
σ	758.709-2021.856=-1263.147
min	2533.166-5928.120=-3394.954
max	4535.751-10868.100=-6332.349

op=vertical_lookup_list() on indexed

*mean*	1973.851-13159.108=-11185.257
σ	0.002-0.002=0.000
min	1973.849-13159.106=-11185.256
max	1973.854-13159.110=-11185.256

*mean*	7400.000-7143.000=257.000
σ	0.000
min	7400.000-7143.000=257.000
max	7400.000-7143.000=257.000

*mean*	1084.094-5059.862=-3975.768
σ	267.342-203.912=63.430
min	932.340-4925.747=-3993.407
max	1707.024-5406.972=-3699.948

op=vertical_lookup_list() on unindexed missing Int, minor warmup

*mean*	905.105
σ	0.002
min	905.102
max	905.108

*mean*	7400.000
σ	0.000
min	7400.000
max	7400.000

*mean*	403.158
σ	37.059
min	385.758
max	494.603

CSV internal benchmark: pointedIndexFromKvs

Factor

allocated MiB

peak allocated MiB

time (ms)

op=pointedIndexFromKvs

rows=200000

*mean*	148.144-172.559=-24.414
σ	0.001
min	148.144-172.558=-24.414
max	148.148-172.562=-24.414

*mean*	476.625-477.000=-0.375
σ	0.518-0.000=0.518
min	476.000-477.000=-1.000
max	477.000

*mean*	385.814-362.987=22.827
σ	34.809-33.719=1.090
min	329.674-294.481=35.193
max	430.808-392.006=38.802

op=pointedIndexFromKvs

rows=400000

*mean*	308.493-357.322=-48.828
σ	0.001
min	308.493-357.321=-48.828
max	308.497-357.325=-48.828

*mean*	565.500-560.250=5.250
σ	1.414-1.035=0.379
min	562.000-559.000=3.000
max	566.000-561.000=5.000

*mean*	773.151-767.790=5.361
σ	50.976-28.639=22.337
min	697.232-711.177=-13.945
max	857.360-802.436=54.923

Marine Hull: transactPolicy

Factor

allocated MiB

peak allocated MiB

time

datapoints=1

iterations=20

*mean*	963.971-1024.300=-60.329
σ	1.821-0.759=1.062
min	963.263-1023.824=-60.561
max	971.672-1027.438=-55.766

*mean*	1055.200-1044.400=10.800
σ	310.028-309.171=0.857
min	575.000-583.000=-8.000
max	1511.000-1500.000=11.000

*mean*	1.284-1.538=-0.254
σ	0.151-0.086=0.065
min	1.184-1.355=-0.172
max	1.798-1.726=0.072

Parser: Comma Sep

Factor

allocated MiB

peak allocated MiB

time (ms)

name=ambiguous_item.art

*mean*	0.913-0.913=0.000
σ	0.020
min	0.903-0.903=0.000
max	0.949-0.949=0.000

*mean*	402.000-401.000=1.000
σ	0.000
min	402.000-401.000=1.000
max	402.000-401.000=1.000

*mean*	0.508-0.454=0.053
σ	0.470-0.379=0.091
min	0.261-0.252=0.009
max	1.341-1.126=0.215

name=error_case.art

*mean*	2.340-2.339=0.001
σ	0.012
min	2.334-2.333=0.001
max	2.362-2.361=0.001

*mean*	402.000-401.000=1.000
σ	0.000
min	402.000-401.000=1.000
max	402.000-401.000=1.000

*mean*	0.839-0.733=0.107
σ	0.524-0.304=0.220
min	0.572-0.577=-0.005
max	1.776-1.275=0.500

name=heavy_item.art

*mean*	1.523-1.522=0.000
σ	0.002
min	1.521-1.521=0.000
max	1.525-1.525=0.000

*mean*	402.000-401.000=1.000
σ	0.000
min	402.000-401.000=1.000
max	402.000-401.000=1.000

*mean*	0.386-0.382=0.004
σ	0.045-0.041=0.004
min	0.351-0.352=-0.001
max	0.464-0.451=0.012

name=nested_use.art

*mean*	2.358-2.357=0.001
σ	0.002
min	2.357-2.356=0.001
max	2.361-2.360=0.001

*mean*	402.000-401.000=1.000
σ	0.000
min	402.000-401.000=1.000
max	402.000-401.000=1.000

*mean*	0.597-0.579=0.018
σ	0.039-0.027=0.012
min	0.565-0.553=0.012
max	0.663-0.623=0.041

Parser: Real World

Factor

allocated MiB

peak allocated MiB

time (sec)

name=aon_gpf25_7k_loc.art

*mean*	964.971-964.840=0.130
σ	0.011
min	964.965-964.835=0.130
max	964.989-964.859=0.130

*mean*	431.800-436.000=-4.200
σ	1.789-6.595=-4.807
min	431.000-430.000=1.000
max	435.000-443.000=-8.000

*mean*	0.610-0.600=0.009
σ	0.084-0.084=0.000
min	0.536-0.524=0.012
max	0.746-0.743=0.004

name=cdr_enhanced_4k_loc.art

*mean*	885.898-885.820=0.078
σ	0.002
min	885.897-885.819=0.078
max	885.901-885.823=0.078

*mean*	443.000
σ	0.000
min	443.000
max	443.000

*mean*	0.488-0.464=0.023
σ	0.027-0.041=-0.015
min	0.444-0.427=0.018
max	0.517-0.521=-0.004

Parser: Record Parsing

Factor

allocated MiB

peak allocated MiB

time (ms)

name=record_render_large_success.art

*mean*	7.710-7.709=0.001
σ	0.002
min	7.709-7.708=0.001
max	7.713-7.712=0.001

*mean*	443.000
σ	0.000
min	443.000
max	443.000

*mean*	2.247-1.955=0.292
σ	0.361-0.066=0.295
min	1.830-1.824=0.006
max	3.025-2.118=0.907

name=record_render_large_syntax_err.art

*mean*	7.658-7.657=0.001
σ	0.002
min	7.657-7.656=0.001
max	7.661-7.660=0.001

*mean*	443.000
σ	0.000
min	443.000
max	443.000

*mean*	1.956-1.954=0.002
σ	0.064-0.066=-0.002
min	1.842-1.839=0.003
max	2.237-2.251=-0.014

name=record_render_success.art

*mean*	2.290-2.289=0.000
σ	0.002
min	2.289-2.289=0.000
max	2.293-2.293=0.000

*mean*	443.000
σ	0.000
min	443.000
max	443.000

*mean*	0.306-0.310=-0.004
σ	0.010-0.042=-0.033
min	0.293-0.292=0.001
max	0.357-0.721=-0.364

name=record_render_syntax_err.art

*mean*	2.165-2.165=0.000
σ	0.002
min	2.164-2.164=0.000
max	2.168-2.168=0.000

*mean*	443.000
σ	0.000
min	443.000
max	443.000

*mean*	0.296-0.290=0.006
σ	0.010-0.008=0.002
min	0.278-0.276=0.002
max	0.358-0.321=0.037

Revision Creation

Factor

allocated MiB

peak allocated MiB

time_s

number of threads=8

revision count=1000

*mean*	11.450
σ	11.988
min	0.718
max	129.946

*mean*	460.756
σ	19.478
min	407.000
max	478.000

*mean*	0.026
σ	0.029
min	0.001
max	0.310

SoV import

Factor

allocated MiB

peak allocated MiB

time_s

iters=10

rows=1000

*mean*	278.725-298.680=-19.955
σ	0.994-1.051=-0.057
min	278.242-298.260=-20.018
max	281.545-301.666=-20.121

*mean*	442.200-444.000=-1.800
σ	19.447-17.423=2.024
min	413.000-417.000=-4.000
max	475.000-470.000=5.000

*mean*	0.580-0.609=-0.029
σ	0.030-0.018=0.012
min	0.533-0.575=-0.042
max	0.636-0.644=-0.008

Timed compile per phase

Factor

allocated MiB

peak allocated MiB

time (ms)

phase=buildDeclTree

*mean*	173.738-236.678=-62.940
σ	0.000-0.000=-0.000
min	173.738-236.678=-62.940
max	173.738-236.678=-62.940

*mean*	860.000-958.750=-98.750
σ	0.000-20.506=-20.506
min	860.000-908.000=-48.000
max	860.000-966.000=-106.000

*mean*	241.237-208.595=32.643
σ	18.258-9.079=9.178
min	197.550-199.919=-2.369
max	252.575-229.155=23.420

phase=macro expansion

*mean*	6.130-6.130=0.000
σ	0.001-0.000=0.001
min	6.130-6.130=0.000
max	6.133-6.130=0.004

*mean*	860.000-958.750=-98.750
σ	0.000-20.506=-20.506
min	860.000-908.000=-48.000
max	860.000-966.000=-106.000

*mean*	9.324-9.589=-0.265
σ	0.764-2.862=-2.098
min	7.458-6.259=1.199
max	9.794-12.694=-2.900

phase=parser

*mean*	1042.435-1042.363=0.072
σ	0.001-0.000=0.001
min	1042.432-1042.362=0.070
max	1042.436-1042.363=0.073

*mean*	860.000-958.750=-98.750
σ	0.000-20.506=-20.506
min	860.000-908.000=-48.000
max	860.000-966.000=-106.000

*mean*	570.253-587.401=-17.148
σ	58.607-147.128=-88.521
min	434.948-379.284=55.664
max	607.355-742.601=-135.246

phase=processProdDef

*mean*	2243.976-4850.768=-2606.792
σ	0.001-0.000=0.001
min	2243.976-4850.768=-2606.792
max	2243.979-4850.769=-2606.790

*mean*	860.000-966.000=-106.000
σ	0.000
min	860.000-966.000=-106.000
max	860.000-966.000=-106.000

*mean*	3019.037-4703.729=-1684.693
σ	452.515-586.969=-134.454
min	2014.074-3576.217=-1562.143
max	3461.923-5391.795=-1929.872

phase=renaming

*mean*	21.671-21.671=-0.000
σ	0.000
min	21.671-21.671=-0.000
max	21.671-21.671=-0.000

*mean*	860.000-958.750=-98.750
σ	0.000-20.506=-20.506
min	860.000-908.000=-48.000
max	860.000-966.000=-106.000

*mean*	38.314-34.610=3.704
σ	4.548-12.539=-7.990
min	27.114-20.707=6.407
max	40.348-48.614=-8.266

phase=type checker

*mean*	989.755-990.454=-0.699
σ	0.066-0.071=-0.004
min	989.654-990.348=-0.694
max	989.845-990.567=-0.722

*mean*	860.000-958.750=-98.750
σ	0.000-20.506=-20.506
min	860.000-908.000=-48.000
max	860.000-966.000=-106.000

*mean*	682.001-761.311=-79.310
σ	18.917-128.754=-109.838
min	655.035-648.260=6.774
max	713.821-942.501=-228.679

Workflow: transactPolicy

Factor

allocated MiB

peak allocated MiB

time

iters=5

new-facts=1

prior-facts=1

*mean*	282.386-293.818=-11.432
σ	0.037-0.039=-0.002
min	282.337-293.765=-11.428
max	282.428-293.860=-11.432

*mean*	444.800-442.600=2.200
σ	1.095-2.191=-1.095
min	444.000-441.000=3.000
max	446.000-445.000=1.000

*mean*	0.380-0.399=-0.019
σ	0.007-0.010=-0.003
min	0.375-0.392=-0.017
max	0.392-0.415=-0.024

iters=5

new-facts=1

prior-facts=6402

*mean*	1267.100-1320.222=-53.122
σ	0.093-0.036=0.057
min	1267.005-1320.168=-53.163
max	1267.254-1320.264=-53.010

*mean*	1113.800-1093.400=20.400
σ	170.790-182.871=-12.081
min	898.000-839.000=59.000
max	1331.000-1310.000=21.000

*mean*	1.976-2.278=-0.302
σ	0.094-0.140=-0.046
min	1.893-2.175=-0.282
max	2.079-2.524=-0.445

iters=5

new-facts=6402

prior-facts=1

*mean*	1506.130-1560.616=-54.486
σ	2.960-6.237=-3.277
min	1504.627-1557.612=-52.985
max	1511.414-1571.768=-60.353

*mean*	629.200-619.400=9.800
σ	90.295-82.020=8.275
min	505.000-495.000=10.000
max	729.000-715.000=14.000

*mean*	2.377-2.312=0.065
σ	0.310-0.217=0.093
min	2.049-2.158=-0.109
max	2.817-2.692=0.126

iters=5

new-facts=6402

prior-facts=6402

*mean*	1829.117-1882.171=-53.054
σ	0.090-0.045=0.045
min	1829.023-1882.117=-53.094
max	1829.257-1882.233=-52.976

*mean*	1771.200-1735.000=36.200
σ	212.284-226.279=-13.994
min	1492.000-1440.000=52.000
max	1973.000-1952.000=21.000

*mean*	3.245-3.047=0.198
σ	0.399-0.218=0.181
min	2.827-2.815=0.012
max	3.723-3.324=0.399

newProductH/cdr_auton/broker

Factor

time_s

iterations=5

*mean*	1.796-1.622=0.174
σ	0.071-0.158=-0.087
min	1.697-1.419=0.278
max	1.883-1.790=0.093

policy addition benchmark

Factor

allocated MiB

db queries

peak allocated MiB

time

policies=2

*mean*	397.697-452.082=-54.385
σ	518.051-582.722=-64.671
min	138.668-160.719=-22.050
max	1174.773-1326.165=-151.392

*mean*	97.750-102.250=-4.500
σ	7.500-8.500=-1.000
min	94.000-98.000=-4.000
max	109.000-115.000=-6.000

*mean*	446.000-443.000=3.000
σ	0.000
min	446.000-443.000=3.000
max	446.000-443.000=3.000

*mean*	0.481-0.546=-0.065
σ	0.492-0.546=-0.055
min	0.232-0.266=-0.034
max	1.219-1.366=-0.147

policies=20

*mean*	1386.826-1607.529=-220.703
σ	0.162-0.411=-0.249
min	1386.713-1607.248=-220.535
max	1387.067-1608.137=-221.071

*mean*	940.000-980.000=-40.000
σ	0.000
min	940.000-980.000=-40.000
max	940.000-980.000=-40.000

*mean*	446.000-450.000=-4.000
σ	0.000-8.083=-8.083
min	446.000-443.000=3.000
max	446.000-457.000=-11.000

*mean*	2.332-2.686=-0.354
σ	0.010-0.013=-0.004
min	2.321-2.670=-0.349
max	2.344-2.699=-0.355

policies=200

*mean*	13876.755-16083.469=-2206.713
σ	0.115-0.087=0.028
min	13876.674-16083.384=-2206.710
max	13876.926-16083.589=-2206.663

*mean*	9400.000-9800.000=-400.000
σ	0.000
min	9400.000-9800.000=-400.000
max	9400.000-9800.000=-400.000

*mean*	494.000-494.500=-0.500
σ	5.099-2.646=2.453
min	489.000-492.000=-3.000
max	501.000-498.000=3.000

*mean*	23.615-27.147=-3.532
σ	0.168-0.067=0.100
min	23.444-27.075=-3.632
max	23.779-27.209=-3.430