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*	446.883-558.633=-111.750
σ	0.000
min	446.883-558.633=-111.750
max	446.883-558.633=-111.750

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*	54.835-54.870=-0.035
σ	0.365-0.358=0.008
min	54.706-54.732=-0.026
max	55.875-55.888=-0.013

*mean*	418.000-417.000=1.000
σ	0.000
min	418.000-417.000=1.000
max	418.000-417.000=1.000

*mean*	0.140-0.141=-0.001
σ	0.004-0.005=-0.002
min	0.137-0.134=0.002
max	0.148-0.152=-0.004

cache=y

dps=1

iters=10

policies=100

*mean*	43.842-43.839=0.003
σ	0.003-0.005=-0.002
min	43.835-43.832=0.003
max	43.847-43.848=-0.001

*mean*	418.000-417.000=1.000
σ	0.000
min	418.000-417.000=1.000
max	418.000-417.000=1.000

*mean*	0.120-0.125=-0.005
σ	0.005-0.005=-0.000
min	0.115-0.121=-0.007
max	0.129-0.134=-0.005

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=-0.002

*mean*	4591.625-4041.375=550.250
σ	2249.892-2007.514=242.379
min	1485.000-1217.000=268.000
max	7386.000-7144.000=242.000

*mean*	114.937-13.541=101.397
σ	288.354-1.803=286.551
min	11.828-12.401=-0.573
max	828.559-17.905=810.655

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=-0.002

*mean*	4591.625-4041.375=550.250
σ	2249.892-2007.514=242.379
min	1485.000-1217.000=268.000
max	7386.000-7144.000=242.000

*mean*	13.030-13.931=-0.901
σ	2.428-1.879=0.549
min	11.330-12.846=-1.516
max	18.631-18.544=0.088

op=table_records(), no indexes

*mean*	41.948-41.930=0.018
σ	0.002-0.002=0.000
min	41.946-41.929=0.018
max	41.950-41.932=0.018

*mean*	7386.000-7144.000=242.000
σ	0.000
min	7386.000-7144.000=242.000
max	7386.000-7144.000=242.000

*mean*	11.144-15.382=-4.237
σ	0.244-0.191=0.053
min	10.846-15.163=-4.317
max	11.525-15.762=-4.236

op=table_records(), repeat

*mean*	41.933-41.930=0.004
σ	0.000-0.002=-0.002
min	41.933-41.928=0.005
max	41.934-41.932=0.001

*mean*	4182.500-4041.375=141.125
σ	1946.264-2007.514=-61.250
min	1485.000-1217.000=268.000
max	7386.000-7144.000=242.000

*mean*	12.024-15.100=-3.076
σ	1.752-1.587=0.165
min	11.112-11.517=-0.405
max	16.308-16.472=-0.164

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

*mean*	27.655-27.653=0.001
σ	0.137-0.136=0.000
min	27.606-27.604=0.002
max	27.993-27.991=0.002

*mean*	4182.500-4041.375=141.125
σ	1946.264-2007.514=-61.250
min	1485.000-1217.000=268.000
max	7386.000-7144.000=242.000

*mean*	8.939-10.111=-1.172
σ	1.288-1.652=-0.364
min	8.053-8.601=-0.548
max	12.071-12.721=-0.650

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*	4182.500-4041.375=141.125
σ	1946.264-2007.514=-61.250
min	1485.000-1217.000=268.000
max	7386.000-7144.000=242.000

*mean*	6.696-7.624=-0.927
σ	1.133-1.734=-0.600
min	5.717-6.214=-0.497
max	9.395-10.547=-1.153

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	25.688-25.677=0.010

*mean*	4591.625-4041.375=550.250
σ	2249.892-2007.514=242.379
min	1485.000-1217.000=268.000
max	7386.000-7144.000=242.000

*mean*	6.244-6.171=0.073
σ	0.456-0.513=-0.057
min	5.935-5.789=0.146
max	7.337-7.409=-0.072

op=vertical_lookup_row_list() on 3 (1 unindexed)

*mean*	25.984-25.970=0.015
σ	0.000-0.002=-0.001
min	25.984-25.968=0.016
max	25.985-25.972=0.013

*mean*	4591.625-4041.375=550.250
σ	2249.892-2007.514=242.379
min	1485.000-1217.000=268.000
max	7386.000-7144.000=242.000

*mean*	6.056-6.061=-0.005
σ	0.551-0.480=0.071
min	5.688-5.736=-0.048
max	7.391-7.233=0.158

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*	7386.000-7144.000=242.000
σ	0.000
min	7386.000-7144.000=242.000
max	7386.000-7144.000=242.000

*mean*	362.034-396.867=-34.833
σ	43.324-91.918=-48.593
min	344.450-350.568=-6.118
max	469.155-607.161=-138.006

op=load_product(), with indexes

*mean*	3495.878-7917.793=-4421.914
σ	0.469-0.469=-0.001
min	3495.713-7917.625=-4421.913
max	3497.038-7918.954=-4421.916

*mean*	3758.375-3273.500=484.875
σ	2300.951-1823.184=477.767
min	720.000-809.000=-89.000
max	7386.000-5620.000=1766.000

*mean*	1723.757-3715.110=-1991.352
σ	611.701-1089.341=-477.639
min	1394.931-3113.857=-1718.925
max	2975.665-6239.484=-3263.819

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*	4041.375
σ	2007.514
min	1217.000
max	7144.000

*mean*	91.746
σ	23.602
min	71.158
max	123.990

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

*mean*	107.854
σ	0.000
min	107.853
max	107.855

*mean*	4411.500
σ	2219.313
min	1485.000
max	7386.000

*mean*	247.170
σ	318.899
min	123.643
max	1035.335

op=column_set() on unindexed, dense, repeat

*mean*	62.081
σ	0.000
min	62.081
max	62.082

*mean*	4411.500
σ	2219.313
min	1485.000
max	7386.000

*mean*	44.825
σ	7.450
min	40.444
max	63.028

op=vertical_lookup_list() on unindexed missing Int

*mean*	40.946
σ	0.002
min	40.945
max	40.950

*mean*	7144.000
σ	0.000
min	7144.000
max	7144.000

*mean*	61.655
σ	0.459
min	61.067
max	62.502

op=vertical_lookup_list() repeated on unindexed missing Int

*mean*	40.948
σ	0.002
min	40.947
max	40.950

*mean*	7386.000
σ	0.000
min	7386.000
max	7386.000

*mean*	22.609
σ	2.070
min	21.488
max	27.679

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	71.311-66.691=4.620

*mean*	7386.000-7144.000=242.000
σ	0.000
min	7386.000-7144.000=242.000
max	7386.000-7144.000=242.000

*mean*	220.672-99.964=120.707
σ	463.445-0.443=463.001
min	55.060-99.406=-44.347
max	1367.610-100.520=1267.090

CSV - warmup

Factor

allocated MiB

peak allocated MiB

time (ms)

op=table_records()

*mean*	4646.851-14217.170=-9570.320
σ	0.014-4.304=-4.290
min	4646.845-14215.575=-9568.730
max	4646.884-14227.820=-9580.936

*mean*	4182.500-4041.375=141.125
σ	1946.264-2007.514=-61.250
min	1485.000-1217.000=268.000
max	7386.000-7144.000=242.000

*mean*	3273.001-7721.964=-4448.963
σ	741.343-1487.388=-746.046
min	2508.135-6094.881=-3586.746
max	4490.800-10063.826=-5573.026

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*	7386.000-7144.000=242.000
σ	0.000
min	7386.000-7144.000=242.000
max	7386.000-7144.000=242.000

*mean*	1048.030-5173.660=-4125.631
σ	199.087-200.595=-1.508
min	920.638-5052.945=-4132.307
max	1490.188-5538.744=-4048.556

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

*mean*	905.105
σ	0.002
min	905.102
max	905.108

*mean*	7386.000
σ	0.000
min	7386.000
max	7386.000

*mean*	391.510
σ	7.462
min	379.071
max	405.699

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*	476.875-477.000=-0.125
σ	0.354-0.000=0.354
min	476.000-477.000=-1.000
max	477.000

*mean*	386.309-377.056=9.253
σ	25.849-20.819=5.030
min	360.969-347.027=13.942
max	426.852-399.197=27.655

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*	564.750-559.500=5.250
σ	3.536-0.926=2.610
min	556.000-559.000=-3.000
max	566.000-561.000=5.000

*mean*	712.753-722.648=-9.895
σ	83.392-87.722=-4.330
min	582.426-577.126=5.301
max	814.817-830.348=-15.530

Marine Hull: transactPolicy

Factor

allocated MiB

peak allocated MiB

time

datapoints=1

iterations=20

*mean*	963.972-1024.325=-60.353
σ	1.820-0.758=1.062
min	963.264-1023.849=-60.585
max	971.668-1027.462=-55.794

*mean*	1043.950-1052.400=-8.450
σ	309.546-317.480=-7.934
min	584.000-575.000=9.000
max	1500.000-1524.000=-24.000

*mean*	1.239-1.599=-0.360
σ	0.062-0.082=-0.020
min	1.173-1.429=-0.255
max	1.411-1.798=-0.387

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
σ	0.000
min	402.000
max	402.000

*mean*	0.290-0.399=-0.109
σ	0.292-0.503=-0.210
min	0.135-0.145=-0.010
max	0.808-1.295=-0.487

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
σ	0.000
min	402.000
max	402.000

*mean*	0.469-0.484=-0.015
σ	0.324-0.315=0.009
min	0.314-0.331=-0.017
max	1.048-1.047=0.001

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
σ	0.000
min	402.000
max	402.000

*mean*	0.206-0.222=-0.015
σ	0.027-0.025=0.002
min	0.188-0.203=-0.015
max	0.253-0.262=-0.008

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
σ	0.000
min	402.000
max	402.000

*mean*	0.327-0.336=-0.009
σ	0.015-0.014=0.001
min	0.315-0.322=-0.007
max	0.352-0.359=-0.007

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*	431.400-431.800=-0.400
σ	0.894-1.789=-0.894
min	431.000
max	433.000-435.000=-2.000

*mean*	0.571-0.529=0.041
σ	0.036-0.076=-0.039
min	0.519-0.423=0.096
max	0.607-0.600=0.007

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*	439.000-442.000=-3.000
σ	0.000
min	439.000-442.000=-3.000
max	439.000-442.000=-3.000

*mean*	0.441-0.469=-0.028
σ	0.054-0.029=0.025
min	0.378-0.435=-0.057
max	0.522-0.499=0.024

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*	439.000-442.000=-3.000
σ	0.000
min	439.000-442.000=-3.000
max	439.000-442.000=-3.000

*mean*	2.620-1.976=0.644
σ	0.095-0.071=0.024
min	2.424-1.844=0.581
max	2.910-2.229=0.682

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*	439.000-442.000=-3.000
σ	0.000
min	439.000-442.000=-3.000
max	439.000-442.000=-3.000

*mean*	2.574-1.951=0.623
σ	0.074-0.085=-0.011
min	2.427-1.800=0.627
max	2.867-2.236=0.630

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*	439.000-442.000=-3.000
σ	0.000
min	439.000-442.000=-3.000
max	439.000-442.000=-3.000

*mean*	0.303-0.312=-0.009
σ	0.008-0.037=-0.028
min	0.288-0.294=-0.006
max	0.355-0.593=-0.238

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*	439.000-442.000=-3.000
σ	0.000
min	439.000-442.000=-3.000
max	439.000-442.000=-3.000

*mean*	0.290-0.292=-0.001
σ	0.007-0.010=-0.003
min	0.278-0.279=-0.001
max	0.326-0.355=-0.029

Revision Creation

Factor

allocated MiB

peak allocated MiB

time_s

number of threads=8

revision count=1000

*mean*	11.621
σ	10.889
min	0.574
max	77.630

*mean*	466.441
σ	18.992
min	408.000
max	483.000

*mean*	0.027
σ	0.027
min	0.001
max	0.191

SoV import

Factor

allocated MiB

peak allocated MiB

time_s

iters=10

rows=1000

*mean*	278.677-298.759=-20.082
σ	1.114-1.058=0.057
min	278.187-298.362=-20.175
max	281.828-301.766=-19.939

*mean*	445.100-439.700=5.400
σ	17.760-15.854=1.907
min	415.000-416.000=-1.000
max	466.000-463.000=3.000

*mean*	0.574-0.591=-0.017
σ	0.021-0.034=-0.014
min	0.536-0.525=0.011
max	0.610-0.638=-0.028

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*	842.500-1032.375=-189.875
σ	0.535-41.366=-40.831
min	842.000-930.000=-88.000
max	843.000-1047.000=-204.000

*mean*	239.566-216.188=23.377
σ	15.086-4.139=10.947
min	216.319-212.219=4.100
max	251.899-224.930=26.970

phase=macro expansion

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

*mean*	842.375-1032.375=-190.000
σ	0.518-41.366=-40.848
min	842.000-930.000=-88.000
max	843.000-1047.000=-204.000

*mean*	9.524-6.863=2.661
σ	0.132-1.093=-0.961
min	9.356-6.339=3.016
max	9.728-9.544=0.184

phase=parser

*mean*	1042.435-1042.367=0.068
σ	0.000-0.000=-0.000
min	1042.435-1042.367=0.068
max	1042.435-1042.367=0.068

*mean*	842.375-1032.375=-190.000
σ	0.518-41.366=-40.848
min	842.000-930.000=-88.000
max	843.000-1047.000=-204.000

*mean*	598.325-436.057=162.268
σ	7.137-86.899=-79.762
min	588.791-370.534=218.257
max	608.362-578.415=29.947

phase=processProdDef

*mean*	2243.976-4850.764=-2606.788
σ	0.000-0.000=-0.000
min	2243.976-4850.764=-2606.787
max	2243.976-4850.764=-2606.788

*mean*	842.500-1047.000=-204.500
σ	0.535-0.000=0.535
min	842.000-1047.000=-205.000
max	843.000-1047.000=-204.000

*mean*	2608.063-4740.156=-2132.093
σ	468.800-368.792=100.008
min	2032.189-4165.531=-2133.342
max	3212.052-5270.677=-2058.625

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*	842.375-1032.375=-190.000
σ	0.518-41.366=-40.848
min	842.000-930.000=-88.000
max	843.000-1047.000=-204.000

*mean*	40.477-23.483=16.994
σ	0.312-7.123=-6.811
min	40.056-20.570=19.486
max	41.155-41.067=0.088

phase=type checker

*mean*	989.752-990.454=-0.702
σ	0.066-0.071=-0.005
min	989.654-990.348=-0.694
max	989.841-990.567=-0.726

*mean*	842.375-1032.375=-190.000
σ	0.518-41.366=-40.848
min	842.000-930.000=-88.000
max	843.000-1047.000=-204.000

*mean*	691.661-688.149=3.512
σ	32.230-53.979=-21.749
min	668.733-651.296=17.437
max	764.826-805.280=-40.454

Workflow: transactPolicy

Factor

allocated MiB

peak allocated MiB

time

iters=5

new-facts=1

prior-facts=1

*mean*	282.396-293.928=-11.532
σ	0.036-0.038=-0.002
min	282.340-293.874=-11.535
max	282.427-293.966=-11.539

*mean*	441.200-441.800=-0.600
σ	1.643-2.950=-1.306
min	440.000-439.000=1.000
max	443.000-445.000=-2.000

*mean*	0.377-0.399=-0.022
σ	0.002-0.007=-0.006
min	0.375-0.393=-0.018
max	0.379-0.408=-0.028

iters=5

new-facts=1

prior-facts=6402

*mean*	1267.096-1320.302=-53.206
σ	0.087-0.041=0.046
min	1267.009-1320.252=-53.244
max	1267.227-1320.351=-53.124

*mean*	1088.400-1109.200=-20.800
σ	174.043-171.192=2.851
min	850.000-896.000=-46.000
max	1294.000-1333.000=-39.000

*mean*	1.888-2.217=-0.329
σ	0.109-0.103=0.006
min	1.797-2.062=-0.265
max	2.067-2.307=-0.239

iters=5

new-facts=6402

prior-facts=1

*mean*	1506.074-1560.744=-54.670
σ	2.964-6.228=-3.265
min	1504.518-1557.796=-53.278
max	1511.363-1571.882=-60.520

*mean*	614.000-627.600=-13.600
σ	77.878-89.993=-12.115
min	494.000-504.000=-10.000
max	701.000-727.000=-26.000

*mean*	2.210-2.371=-0.161
σ	0.223-0.287=-0.064
min	2.054-2.061=-0.006
max	2.598-2.714=-0.115

iters=5

new-facts=6402

prior-facts=6402

*mean*	1829.106-1882.273=-53.167
σ	0.030-0.060=-0.029
min	1829.056-1882.199=-53.143
max	1829.139-1882.355=-53.216

*mean*	1736.400-1759.400=-23.000
σ	241.360-219.556=21.804
min	1428.000-1479.000=-51.000
max	2045.000-1971.000=74.000

*mean*	2.904-3.223=-0.319
σ	0.089-0.290=-0.200
min	2.797-2.887=-0.090
max	2.991-3.603=-0.612

newProductH/cdr_auton/broker

Factor

time_s

iterations=5

*mean*	1.757-1.724=0.033
σ	0.089-0.259=-0.171
min	1.645-1.315=0.330
max	1.846-1.958=-0.112

policy addition benchmark

Factor

allocated MiB

db queries

peak allocated MiB

time

policies=2

*mean*	397.698-452.153=-54.456
σ	518.052-582.777=-64.725
min	138.670-160.763=-22.093
max	1174.776-1326.319=-151.543

*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*	447.000-441.000=6.000
σ	0.000
min	447.000-441.000=6.000
max	447.000-441.000=6.000

*mean*	0.499-0.551=-0.052
σ	0.531-0.555=-0.024
min	0.232-0.268=-0.036
max	1.296-1.383=-0.088

policies=20

*mean*	1386.840-1607.972=-221.132
σ	0.165-0.430=-0.265
min	1386.725-1607.680=-220.955
max	1387.085-1608.609=-221.524

*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*	447.000-449.000=-2.000
σ	0.000-9.238=-9.238
min	447.000-441.000=6.000
max	447.000-457.000=-10.000

*mean*	2.325-2.711=-0.386
σ	0.017-0.014=0.002
min	2.311-2.699=-0.388
max	2.349-2.725=-0.376

policies=200

*mean*	13876.893-16087.779=-2210.886
σ	0.079-0.143=-0.064
min	13876.812-16087.633=-2210.821
max	13877.002-16087.954=-2210.952

*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*	495.250-496.750=-1.500
σ	4.500-4.272=0.228
min	490.000-492.000=-2.000
max	501.000-502.000=-1.000

*mean*	23.507-27.387=-3.879
σ	0.170-0.119=0.051
min	23.343-27.278=-3.934
max	23.738-27.550=-3.811