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*	54.861-54.881=-0.020
σ	0.360-0.360=-0.000
min	54.725-54.744=-0.019
max	55.884-55.904=-0.020

*mean*	415.000-419.000=-4.000
σ	0.000
min	415.000-419.000=-4.000
max	415.000-419.000=-4.000

*mean*	0.142-0.139=0.003
σ	0.004-0.005=-0.001
min	0.138-0.132=0.006
max	0.148-0.147=0.002

cache=y

dps=1

iters=10

policies=100

*mean*	43.848-43.851=-0.003
σ	0.007-0.006=0.001
min	43.837-43.843=-0.006
max	43.857-43.861=-0.004

*mean*	415.000-419.000=-4.000
σ	0.000
min	415.000-419.000=-4.000
max	415.000-419.000=-4.000

*mean*	0.126-0.128=-0.002
σ	0.004-0.009=-0.005
min	0.123-0.116=0.007
max	0.133-0.148=-0.015

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*	4586.250-4040.875=545.375
σ	2258.230-2008.944=249.286
min	1485.000-1216.000=269.000
max	7409.000-7151.000=258.000

*mean*	13.445-12.887=0.559
σ	3.642-1.694=1.947
min	11.487-11.964=-0.478
max	20.998-17.019=3.979

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*	4586.250-4040.875=545.375
σ	2258.230-2008.944=249.286
min	1485.000-1216.000=269.000
max	7409.000-7151.000=258.000

*mean*	13.653-12.608=1.045
σ	3.169-1.658=1.512
min	11.070-11.337=-0.266
max	20.414-16.491=3.923

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	41.951-41.933=0.018

*mean*	7409.000-7151.000=258.000
σ	0.000
min	7409.000-7151.000=258.000
max	7409.000-7151.000=258.000

*mean*	10.416-14.682=-4.266
σ	0.207-0.250=-0.043
min	10.075-14.171=-4.096
max	10.722-15.012=-4.289

op=table_records(), repeat

*mean*	41.933-41.929=0.004
σ	0.000-0.002=-0.002
min	41.933-41.927=0.005
max	41.934-41.932=0.002

*mean*	4170.875-4040.875=130.000
σ	1949.331-2008.944=-59.612
min	1485.000-1216.000=269.000
max	7409.000-7151.000=258.000

*mean*	11.069-13.767=-2.699
σ	1.846-1.492=0.355
min	10.180-10.509=-0.329
max	15.600-15.249=0.351

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*	4170.875-4040.875=130.000
σ	1949.331-2008.944=-59.612
min	1485.000-1216.000=269.000
max	7409.000-7151.000=258.000

*mean*	8.551-9.062=-0.511
σ	1.365-1.255=0.110
min	7.402-7.808=-0.406
max	11.849-11.710=0.139

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*	4170.875-4040.875=130.000
σ	1949.331-2008.944=-59.612
min	1485.000-1216.000=269.000
max	7409.000-7151.000=258.000

*mean*	6.623-6.998=-0.376
σ	0.976-1.072=-0.096
min	5.885-6.008=-0.123
max	8.987-9.205=-0.218

op=vertical_lookup_row_list() on 2 indexed

*mean*	25.681-25.668=0.013
σ	0.003-0.004=-0.001
min	25.680-25.666=0.014
max	25.688-25.678=0.010

*mean*	4586.250-4040.875=545.375
σ	2258.230-2008.944=249.286
min	1485.000-1216.000=269.000
max	7409.000-7151.000=258.000

*mean*	6.080-5.794=0.286
σ	0.931-0.578=0.353
min	5.573-5.337=0.236
max	8.212-7.168=1.044

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*	4586.250-4040.875=545.375
σ	2258.230-2008.944=249.286
min	1485.000-1216.000=269.000
max	7409.000-7151.000=258.000

*mean*	6.018-5.504=0.514
σ	0.985-0.459=0.527
min	5.375-5.249=0.126
max	8.191-6.630=1.561

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*	7409.000-7151.000=258.000
σ	0.000
min	7409.000-7151.000=258.000
max	7409.000-7151.000=258.000

*mean*	361.776-365.015=-3.238
σ	41.474-54.226=-12.752
min	345.348-342.712=2.636
max	464.394-499.036=-34.643

op=load_product(), with indexes

*mean*	3495.878-7917.792=-4421.914
σ	0.469-0.469=-0.001
min	3495.713-7917.624=-4421.912
max	3497.038-7918.953=-4421.916

*mean*	3750.125-3272.500=477.625
σ	2301.687-1821.892=479.795
min	720.000-810.000=-90.000
max	7409.000-5617.000=1792.000

*mean*	1615.948-3573.564=-1957.615
σ	458.692-987.069=-528.378
min	1392.545-3073.891=-1681.346
max	2734.288-5817.322=-3083.034

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*	4040.875
σ	2008.944
min	1216.000
max	7151.000

*mean*	83.485
σ	14.406
min	70.829
max	107.653

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

*mean*	107.854
σ	0.000
min	107.854
max	107.855

*mean*	4405.500
σ	2229.402
min	1485.000
max	7409.000

*mean*	246.168
σ	306.423
min	121.288
max	1002.784

op=column_set() on unindexed, dense, repeat

*mean*	62.082
σ	0.000
min	62.081
max	62.082

*mean*	4586.250
σ	2258.230
min	1485.000
max	7409.000

*mean*	196.044
σ	428.173
min	40.577
max	1255.569

op=vertical_lookup_list() on unindexed missing Int

*mean*	40.946
σ	0.002
min	40.944
max	40.950

*mean*	7151.000
σ	0.000
min	7151.000
max	7151.000

*mean*	61.309
σ	1.210
min	60.643
max	64.279

op=vertical_lookup_list() repeated on unindexed missing Int

*mean*	40.948
σ	0.002
min	40.947
max	40.950

*mean*	7409.000
σ	0.000
min	7409.000
max	7409.000

*mean*	21.549
σ	1.050
min	21.009
max	24.124

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=4.621
max	71.311-66.691=4.620

*mean*	7409.000-7151.000=258.000
σ	0.000
min	7409.000-7151.000=258.000
max	7409.000-7151.000=258.000

*mean*	279.001-99.140=179.861
σ	630.496-0.327=630.169
min	54.829-98.478=-43.648
max	1839.393-99.615=1739.778

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	4646.845-14215.576=-9568.731
max	4646.884-14227.820=-9580.936

*mean*	4170.875-4040.875=130.000
σ	1949.331-2008.944=-59.612
min	1485.000-1216.000=269.000
max	7409.000-7151.000=258.000

*mean*	3169.247-7964.130=-4794.884
σ	832.831-1975.150=-1142.319
min	2499.113-5974.409=-3475.296
max	4735.141-11133.046=-6397.905

op=vertical_lookup_list() on indexed

*mean*	1973.851-13159.109=-11185.257
σ	0.002-0.002=0.000
min	1973.849-13159.106=-11185.256
max	1973.854-13159.110=-11185.256

*mean*	7409.000-7151.000=258.000
σ	0.000
min	7409.000-7151.000=258.000
max	7409.000-7151.000=258.000

*mean*	1031.738-5278.711=-4246.973
σ	183.377-626.579=-443.202
min	905.508-4980.348=-4074.840
max	1385.316-6776.850=-5391.534

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

*mean*	905.105
σ	0.002
min	905.102
max	905.108

*mean*	7409.000
σ	0.000
min	7409.000
max	7409.000

*mean*	393.998
σ	3.754
min	388.620
max	400.019

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*	479.000-477.000=2.000
σ	0.000
min	479.000-477.000=2.000
max	479.000-477.000=2.000

*mean*	362.907-376.603=-13.696
σ	50.068-20.030=30.039
min	284.711-350.462=-65.751
max	439.075-395.002=44.073

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*	562.000
σ	0.000
min	562.000
max	562.000

*mean*	764.104-720.891=43.213
σ	33.574-77.524=-43.950
min	731.108-611.669=119.439
max	826.539-799.028=27.511

Marine Hull: transactPolicy

Factor

allocated MiB

peak allocated MiB

time

datapoints=1

iterations=20

*mean*	1024.563-1024.299=0.264
σ	0.760-0.759=0.001
min	1024.095-1023.824=0.271
max	1027.704-1027.437=0.268

*mean*	1038.450-1058.350=-19.900
σ	307.782-311.355=-3.572
min	543.000-597.000=-54.000
max	1524.000-1562.000=-38.000

*mean*	1.389-1.550=-0.161
σ	0.103-0.053=0.051
min	1.274-1.494=-0.221
max	1.661-1.696=-0.035

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

*mean*	0.312-0.297=0.016
σ	0.313-0.296=0.017
min	0.141-0.135=0.006
max	0.868-0.821=0.047

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

*mean*	0.434-0.472=-0.038
σ	0.195-0.320=-0.125
min	0.332-0.320=0.012
max	0.782-1.045=-0.263

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

*mean*	0.225-0.221=0.004
σ	0.022-0.022=0.000
min	0.210-0.203=0.007
max	0.265-0.259=0.006

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

*mean*	0.347-0.334=0.013
σ	0.018-0.023=-0.005
min	0.330-0.314=0.016
max	0.377-0.372=0.006

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*	430.000-436.600=-6.600
σ	0.000-6.066=-6.066
min	430.000-431.000=-1.000
max	430.000-443.000=-13.000

*mean*	0.579-0.543=0.035
σ	0.032-0.056=-0.023
min	0.533-0.474=0.059
max	0.604-0.602=0.003

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*	430.000-443.000=-13.000
σ	0.000
min	430.000-443.000=-13.000
max	430.000-443.000=-13.000

*mean*	0.463-0.464=-0.001
σ	0.051-0.062=-0.011
min	0.384-0.390=-0.005
max	0.516-0.529=-0.013

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*	430.000-443.000=-13.000
σ	0.000
min	430.000-443.000=-13.000
max	430.000-443.000=-13.000

*mean*	2.657-1.968=0.689
σ	0.128-0.081=0.047
min	2.468-1.788=0.680
max	3.341-2.277=1.064

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*	430.000-443.000=-13.000
σ	0.000
min	430.000-443.000=-13.000
max	430.000-443.000=-13.000

*mean*	2.588-2.044=0.543
σ	0.080-0.276=-0.196
min	2.451-1.823=0.628
max	2.871-2.878=-0.008

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*	430.000-443.000=-13.000
σ	0.000
min	430.000-443.000=-13.000
max	430.000-443.000=-13.000

*mean*	0.312-0.305=0.007
σ	0.017-0.009=0.007
min	0.298-0.291=0.007
max	0.424-0.370=0.054

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*	430.000-443.000=-13.000
σ	0.000
min	430.000-443.000=-13.000
max	430.000-443.000=-13.000

*mean*	0.292-0.289=0.004
σ	0.007-0.010=-0.003
min	0.278-0.269=0.009
max	0.335-0.335=0.000

Revision Creation

Factor

allocated MiB

peak allocated MiB

time_s

number of threads=8

revision count=1000

*mean*	11.995
σ	11.838
min	0.573
max	83.974

*mean*	461.592
σ	16.664
min	408.000
max	474.000

*mean*	0.027
σ	0.029
min	0.001
max	0.201

SoV import

Factor

allocated MiB

peak allocated MiB

time_s

iters=10

rows=1000

*mean*	298.782-298.709=0.073
σ	1.004-1.006=-0.002
min	298.379-298.329=0.050
max	301.631-301.569=0.062

*mean*	437.100-442.400=-5.300
σ	15.029-13.509=1.520
min	413.000-425.000=-12.000
max	459.000-467.000=-8.000

*mean*	0.580-0.596=-0.015
σ	0.046-0.034=0.012
min	0.502-0.513=-0.011
max	0.638-0.640=-0.003

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*	844.000-1064.125=-220.125
σ	0.000-33.588=-33.588
min	844.000-981.000=-137.000
max	844.000-1076.000=-232.000

*mean*	223.925-206.372=17.554
σ	28.094-3.564=24.529
min	196.888-202.774=-5.887
max	256.881-212.850=44.031

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*	843.375-1064.125=-220.750
σ	1.768-33.588=-31.820
min	839.000-981.000=-142.000
max	844.000-1076.000=-232.000

*mean*	9.282-9.314=-0.032
σ	0.782-2.582=-1.800
min	7.381-6.397=0.983
max	9.753-13.097=-3.344

phase=parser

*mean*	1042.434-1042.363=0.071
σ	0.000-0.000=0.000
min	1042.433-1042.362=0.071
max	1042.434-1042.363=0.071

*mean*	843.375-1064.125=-220.750
σ	1.768-33.588=-31.820
min	839.000-981.000=-142.000
max	844.000-1076.000=-232.000

*mean*	585.840-535.812=50.028
σ	45.406-78.374=-32.968
min	475.246-376.139=99.107
max	614.881-626.943=-12.062

phase=processProdDef

*mean*	2243.977-4850.764=-2606.788
σ	0.000
min	2243.977-4850.764=-2606.788
max	2243.977-4850.764=-2606.788

*mean*	844.000-1076.000=-232.000
σ	0.000
min	844.000-1076.000=-232.000
max	844.000-1076.000=-232.000

*mean*	2634.258-4769.586=-2135.328
σ	549.506-408.059=141.447
min	1735.854-4164.411=-2428.556
max	3204.292-5459.050=-2254.759

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*	843.375-1064.125=-220.750
σ	1.768-33.588=-31.820
min	839.000-981.000=-142.000
max	844.000-1076.000=-232.000

*mean*	38.798-33.504=5.294
σ	5.061-12.413=-7.351
min	26.407-20.830=5.577
max	41.767-49.131=-7.364

phase=type checker

*mean*	989.752-990.450=-0.698
σ	0.066-0.071=-0.005
min	989.654-990.344=-0.690
max	989.841-990.563=-0.722

*mean*	843.375-1064.125=-220.750
σ	1.768-33.588=-31.820
min	839.000-981.000=-142.000
max	844.000-1076.000=-232.000

*mean*	740.881-760.576=-19.695
σ	86.030-185.177=-99.147
min	675.296-640.163=35.133
max	893.677-1133.651=-239.975

Workflow: transactPolicy

Factor

allocated MiB

peak allocated MiB

time

iters=5

new-facts=1

prior-facts=1

*mean*	293.820-293.822=-0.002
σ	0.038-0.042=-0.005
min	293.767-293.764=0.003
max	293.857-293.871=-0.013

*mean*	444.400-439.800=4.600
σ	0.548-1.095=-0.548
min	444.000-439.000=5.000
max	445.000-441.000=4.000

*mean*	0.396-0.411=-0.014
σ	0.003-0.008=-0.004
min	0.392-0.398=-0.006
max	0.402-0.416=-0.014

iters=5

new-facts=1

prior-facts=6402

*mean*	1320.291-1320.192=0.099
σ	0.142-0.088=0.054
min	1320.163-1320.084=0.080
max	1320.526-1320.299=0.228

*mean*	1117.400-1093.800=23.600
σ	178.357-197.366=-19.008
min	899.000-837.000=62.000
max	1352.000-1355.000=-3.000

*mean*	1.946-2.118=-0.173
σ	0.052-0.101=-0.050
min	1.885-2.018=-0.133
max	2.016-2.276=-0.260

iters=5

new-facts=6402

prior-facts=1

*mean*	1559.279-1560.604=-1.325
σ	2.999-6.226=-3.227
min	1557.659-1557.634=0.025
max	1564.629-1571.737=-7.108

*mean*	627.200-628.000=-0.800
σ	86.791-97.373=-10.582
min	498.000-511.000=-13.000
max	729.000-751.000=-22.000

*mean*	2.244-2.297=-0.053
σ	0.216-0.065=0.151
min	2.091-2.204=-0.114
max	2.620-2.386=0.233

iters=5

new-facts=6402

prior-facts=6402

*mean*	1882.371-1882.162=0.209
σ	0.077-0.067=0.010
min	1882.287-1882.091=0.197
max	1882.470-1882.249=0.221

*mean*	1759.400-1731.000=28.400
σ	211.015-188.343=22.672
min	1477.000-1486.000=-9.000
max	1959.000-1910.000=49.000

*mean*	3.256-3.158=0.097
σ	0.410-0.403=0.007
min	2.774-2.834=-0.060
max	3.692-3.853=-0.160

newProductH/cdr_auton/broker

Factor

time_s

iterations=5

*mean*	1.669-1.676=-0.007
σ	0.133-0.151=-0.018
min	1.554-1.439=0.116
max	1.851-1.816=0.036

policy addition benchmark

Factor

allocated MiB

db queries

peak allocated MiB

time

policies=2

*mean*	419.769-452.082=-32.313
σ	518.096-582.722=-64.626
min	160.716-160.719=-0.003
max	1196.914-1326.165=-129.252

*mean*	101.750-102.250=-0.500
σ	7.500-8.500=-1.000
min	98.000
max	113.000-115.000=-2.000

*mean*	447.000-443.000=4.000
σ	0.000
min	447.000-443.000=4.000
max	447.000-443.000=4.000

*mean*	0.502-0.544=-0.041
σ	0.481-0.543=-0.062
min	0.256-0.266=-0.010
max	1.223-1.357=-0.134

policies=20

*mean*	1607.500-1607.522=-0.022
σ	0.356-0.401=-0.044
min	1607.248-1607.251=-0.003
max	1608.026-1608.116=-0.090

*mean*	980.000
σ	0.000
min	980.000
max	980.000

*mean*	450.250-450.500=-0.250
σ	6.500-8.660=-2.160
min	447.000-443.000=4.000
max	460.000-458.000=2.000

*mean*	2.591-2.694=-0.103
σ	0.018-0.018=-0.000
min	2.566-2.678=-0.112
max	2.607-2.717=-0.110

policies=200

*mean*	16083.518-16083.361=0.157
σ	0.049-0.165=-0.116
min	16083.466-16083.218=0.247
max	16083.583-16083.571=0.011

*mean*	9800.000
σ	0.000
min	9800.000
max	9800.000

*mean*	499.500-496.500=3.000
σ	5.972-3.416=2.557
min	493.000
max	507.000-501.000=6.000

*mean*	26.141-27.137=-0.996
σ	0.039-0.029=0.010
min	26.101-27.115=-1.014
max	26.189-27.178=-0.989