[LLVMdev] Exception handling slowdown?
Duncan Sands
baldrick at free.fr
Thu Jul 5 01:33:03 PDT 2012
Hi Bill,
> Nothing that I'm aware of has changed with EH. Is it possible to bisect the problem?
I don't see any relevant LLVM changes, so I guess clang C++ compilation slowed
down due to some clang changes. I'm not going to investigate this.
Ciao, Duncan.
>
> -bw
>
> On Jun 20, 2012, at 12:38 AM, Duncan Sands <baldrick at free.fr> wrote:
>
>> Did something change with exception handling recently? A bunch of lit bots are
>> showing slower compile times for many tests.
>>
>> Ciao, Duncan.
>>
>> On 20/06/12 07:53, llvm-testresults at cs.uiuc.edu wrote:
>>>
>>> lab-mini-03__O0-g__clang_DEV__x86_64 test results
>>> <http://llvm.org/perf/db_default/v4/nts/1283?compare_to=1278&baseline=999>
>>>
>>> Run Order Start Time Duration
>>> Current <http://llvm.org/perf/db_default/v4/nts/1283> 158786
>>> <http://llvm.org/perf/db_default/v4/nts/order/1314> 2012-06-20 03:39:48 2:15:27
>>> Previous <http://llvm.org/perf/db_default/v4/nts/1278> 158769
>>> <http://llvm.org/perf/db_default/v4/nts/order/1310> 2012-06-20 00:57:42 2:15:20
>>> Baseline <http://llvm.org/perf/db_default/v4/nts/999> 158324
>>> <http://llvm.org/perf/db_default/v4/nts/order/1162> 2012-06-11 20:29:30 2:15:20
>>>
>>>
>>> Tests Summary
>>>
>>> Status Group # # (B)
>>> Performance Regressions 45 46
>>> Unchanged Tests 849 848
>>> *Total Tests* *894* *894*
>>>
>>>
>>> Run-Over-Run Changes Detail
>>>
>>> Performance Regressions - Compile Time Δ Previous Current σ Δ (B) σ (B)
>>> SingleSource/UnitTests/ObjC/exceptions-4
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.420=3> 7.94% 0.3463
>>> 0.3738 0.0002 7.88% 0.0002
>>> SingleSource/UnitTests/ObjC/trivial-interface
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.222=3> 7.88% 0.3437
>>> 0.3708 0.0003 7.73% 0.0003
>>> SingleSource/UnitTests/ObjC/exceptions-2
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.343=3> 7.87% 0.3444
>>> 0.3715 0.0081 7.81% 0.0081
>>> SingleSource/UnitTests/ObjC/synchronized
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.388=3> 7.79% 0.3464
>>> 0.3734 0.0002 7.64% 0.0002
>>> SingleSource/UnitTests/ObjC/exceptions-3
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.108=3> 7.78% 0.3458
>>> 0.3727 0.0004 7.72% 0.0004
>>> SingleSource/UnitTests/ObjC/for-in
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.418=3> 7.76% 0.3493
>>> 0.3764 0.0005 7.67% 0.0005
>>> SingleSource/UnitTests/ObjC/parameter-passing
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.24=3> 7.59% 0.3715
>>> 0.3997 0.0031 7.33% 0.0031
>>> SingleSource/UnitTests/ObjC/instance-method-metadata
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.375=3> 7.52% 0.3486
>>> 0.3748 0.0010 7.45% 0.0010
>>> SingleSource/UnitTests/ObjC/property
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.8=3> 7.49% 0.3646
>>> 0.3919 0.0000 7.37% 0.0000
>>> SingleSource/UnitTests/ObjC/exceptions
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.101=3> 7.47% 0.3641
>>> 0.3913 0.0004 7.41% 0.0004
>>> SingleSource/UnitTests/ObjC++/property-reference-object
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.50=3> 5.96% 0.5792
>>> 0.6137 0.0001 4.21% 0.0001
>>> SingleSource/UnitTests/ObjC++/Hello
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.428=3> 5.89% 0.5742
>>> 0.6080 0.0002 4.36% 0.0002
>>> SingleSource/UnitTests/ObjC++/property-reference
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.156=3> 5.18% 0.7033
>>> 0.7397 0.0003 3.15% 0.0003
>>> MultiSource/Benchmarks/MiBench/consumer-jpeg/consumer-jpeg
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.284=3> 3.70% 1.9509
>>> 2.0230 0.0008 2.72% 0.0008
>>> MultiSource/Benchmarks/mediabench/jpeg/jpeg-6a/cjpeg
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.414=3> 3.55% 1.9755
>>> 2.0456 0.0004 2.45% 0.0004
>>> MultiSource/Benchmarks/MiBench/office-ispell/office-ispell
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.106=3> 3.49% 0.5011
>>> 0.5186 0.0007 3.18% 0.0007
>>> MultiSource/Applications/spiff/spiff
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.400=3> 3.43% 0.3989
>>> 0.4126 0.0010 2.41% 0.0010
>>> MultiSource/Benchmarks/MallocBench/espresso/espresso
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.408=3> 3.07% 1.6150
>>> 1.6645 0.0037 2.68% 0.0037
>>> MultiSource/Benchmarks/Prolangs-C/TimberWolfMC/timberwolfmc
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.54=3> 3.05% 3.5468
>>> 3.6550 0.0020 2.59% 0.0020
>>> MultiSource/Applications/ClamAV/clamscan
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.214=3> 2.95% 4.1812
>>> 4.3044 0.0044 2.22% 0.0044
>>> MultiSource/Benchmarks/Ptrdist/bc/bc
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.423=3> 2.92% 0.3907
>>> 0.4021 0.0030 2.32% 0.0030
>>> MultiSource/Benchmarks/MiBench/consumer-lame/consumer-lame
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.271=3> 2.82% 1.3096
>>> 1.3465 0.0018 2.38% 0.0018
>>> MultiSource/Benchmarks/MiBench/telecomm-gsm/telecomm-gsm
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.297=3> 2.76% 0.4972
>>> 0.5109 0.0017 2.30% 0.0017
>>> MultiSource/Benchmarks/mediabench/gsm/toast/toast
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.123=3> 2.74% 0.4965
>>> 0.5101 0.0012 2.02% 0.0012
>>> MultiSource/Benchmarks/VersaBench/dbms/dbms
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.276=3> 2.65% 0.5888
>>> 0.6044 0.0032 2.44% 0.0032
>>> MultiSource/Benchmarks/Prolangs-C/bison/mybison
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.131=3> 2.65% 0.4612
>>> 0.4734 0.0015 1.63% 0.0015
>>> MultiSource/Applications/treecc/treecc
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.181=3> 2.58% 0.7785
>>> 0.7986 0.0012 1.41% 0.0012
>>> MultiSource/Applications/SPASS/SPASS
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.25=3> 2.44% 5.5191
>>> 5.6538 0.0039 2.02% 0.0039
>>> MultiSource/Applications/JM/lencod/lencod
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.384=3> 2.43% 4.5916
>>> 4.7032 0.0080 1.85% 0.0080
>>> MultiSource/Benchmarks/Prolangs-C++/city/city
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.30=3> 2.37% 2.0844
>>> 2.1339 0.0010 3.22% 0.0010
>>> MultiSource/Benchmarks/Prolangs-C/agrep/agrep
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.162=3> 2.35% 0.4337
>>> 0.4439 0.0002 1.79% 0.0002
>>> MultiSource/Benchmarks/ASCI_Purple/SMG2000/smg2000
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.310=3> 2.32% 2.7068
>>> 2.7695 0.0071 1.48% 0.0071
>>> MultiSource/Applications/hexxagon/hexxagon
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.243=3> 2.28% 0.9968
>>> 1.0195 0.0005 2.89% 0.0005
>>> MultiSource/Benchmarks/MiBench/consumer-typeset/consumer-typeset
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.392=3> 2.22% 4.3907
>>> 4.4882 0.0010 1.55% 0.0010
>>> MultiSource/Applications/lua/lua
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.155=3> 2.18% 1.4158
>>> 1.4467 0.0010 1.39% 0.0010
>>> MultiSource/Applications/JM/ldecod/ldecod
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.125=3> 2.13% 2.1580
>>> 2.2040 0.0005 1.79% 0.0005
>>> MultiSource/Applications/d/make_dparser
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.134=3> 2.12% 1.0745
>>> 1.0973 0.0005 1.78% 0.0005
>>> MultiSource/Benchmarks/MallocBench/gs/gs
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.301=3> 2.02% 1.8680
>>> 1.9058 0.0036 1.40% 0.0036
>>> MultiSource/Benchmarks/mafft/pairlocalalign
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.426=3> 1.91% 2.0841
>>> 2.1239 0.0018 1.08% 0.0018
>>> MultiSource/Applications/hbd/hbd
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.164=3> 1.89% 0.9641
>>> 0.9823 0.0006 1.30% 0.0006
>>> MultiSource/Benchmarks/Bullet/bullet
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.274=3> 1.30% 23.8330
>>> 24.1424 0.0044 2.65% 0.0044
>>> MultiSource/Applications/kimwitu++/kc
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.412=3> 1.24% 11.9645
>>> 12.1130 0.0069 1.32% 0.0069
>>> MultiSource/Applications/oggenc/oggenc
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.293=3> 1.22% 1.5963
>>> 1.6158 0.0016 1.42% 0.0016
>>> MultiSource/Applications/sqlite3/sqlite3
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.402=3> 1.13% 2.0217
>>> 2.0446 0.0012 0.49% 0.0012
>>>
>>> Performance Regressions - Execution Time Δ Previous Current σ Δ (B) σ (B)
>>> SingleSource/Benchmarks/Shootout-C++/fibo
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.194=2> 1.03% 12.2303
>>> 12.3566 0.0101 -0.17% 0.0101
>>>
>>>
>>> Run-Over-Baseline Changes Detail
>>>
>>> Performance Regressions - Compile Time Δ(B) Baseline Current σ(B) Δ σ
>>> SingleSource/UnitTests/ObjC/exceptions-4
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.420=3> 7.88% 0.3465
>>> 0.3738 0.0002 7.94% 0.0002
>>> SingleSource/UnitTests/ObjC/exceptions-2
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.343=3> 7.81% 0.3446
>>> 0.3715 0.0081 7.87% 0.0081
>>> SingleSource/UnitTests/ObjC/trivial-interface
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.222=3> 7.73% 0.3442
>>> 0.3708 0.0003 7.88% 0.0003
>>> SingleSource/UnitTests/ObjC/exceptions-3
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.108=3> 7.72% 0.3460
>>> 0.3727 0.0004 7.78% 0.0004
>>> SingleSource/UnitTests/ObjC/for-in
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.418=3> 7.67% 0.3496
>>> 0.3764 0.0005 7.76% 0.0005
>>> SingleSource/UnitTests/ObjC/synchronized
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.388=3> 7.64% 0.3469
>>> 0.3734 0.0002 7.79% 0.0002
>>> SingleSource/UnitTests/ObjC/instance-method-metadata
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.375=3> 7.45% 0.3488
>>> 0.3748 0.0010 7.52% 0.0010
>>> SingleSource/UnitTests/ObjC/exceptions
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.101=3> 7.41% 0.3643
>>> 0.3913 0.0004 7.47% 0.0004
>>> SingleSource/UnitTests/ObjC/property
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.8=3> 7.37% 0.3650
>>> 0.3919 0.0000 7.49% 0.0000
>>> SingleSource/UnitTests/ObjC/parameter-passing
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.24=3> 7.33% 0.3724
>>> 0.3997 0.0031 7.59% 0.0031
>>> SingleSource/UnitTests/ObjC++/Hello
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.428=3> 4.36% 0.5826
>>> 0.6080 0.0002 5.89% 0.0002
>>> SingleSource/UnitTests/ObjC++/property-reference-object
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.50=3> 4.21% 0.5889
>>> 0.6137 0.0001 5.96% 0.0001
>>> MultiSource/Benchmarks/Prolangs-C++/city/city
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.30=3> 3.22% 2.0673
>>> 2.1339 0.0010 2.37% 0.0010
>>> MultiSource/Benchmarks/MiBench/office-ispell/office-ispell
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.106=3> 3.18% 0.5026
>>> 0.5186 0.0007 3.49% 0.0007
>>> SingleSource/UnitTests/ObjC++/property-reference
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.156=3> 3.15% 0.7171
>>> 0.7397 0.0003 5.18% 0.0003
>>> SingleSource/Benchmarks/Misc-C++/Large/ray
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.318=3> 2.95% 0.3625
>>> 0.3732 0.0003 2.13% 0.0003
>>> SingleSource/Benchmarks/Shootout-C++/moments
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.206=3> 2.91% 0.3678
>>> 0.3785 0.0005 2.13% 0.0005
>>> SingleSource/Benchmarks/Shootout-C++/hash
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.66=3> 2.89% 0.4146
>>> 0.4266 0.0003 2.16% 0.0003
>>> MultiSource/Applications/hexxagon/hexxagon
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.243=3> 2.89% 0.9909
>>> 1.0195 0.0005 2.28% 0.0005
>>> SingleSource/Benchmarks/Shootout-C++/sieve
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.347=3> 2.82% 0.3726
>>> 0.3831 0.0002 1.97% 0.0002
>>> SingleSource/Benchmarks/Shootout-C++/hash2
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.41=3> 2.73% 0.4251
>>> 0.4367 0.0006 1.94% 0.0006
>>> MultiSource/Benchmarks/MiBench/consumer-jpeg/consumer-jpeg
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.284=3> 2.72% 1.9694
>>> 2.0230 0.0008 3.70% 0.0008
>>> MultiSource/Benchmarks/MallocBench/espresso/espresso
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.408=3> 2.68% 1.6211
>>> 1.6645 0.0037 3.07% 0.0037
>>> MultiSource/Benchmarks/Bullet/bullet
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.274=3> 2.65% 23.5202
>>> 24.1424 0.0044 1.30% 0.0044
>>> MultiSource/Benchmarks/Prolangs-C/TimberWolfMC/timberwolfmc
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.54=3> 2.59% 3.5627
>>> 3.6550 0.0020 3.05% 0.0020
>>> MultiSource/Benchmarks/mediabench/jpeg/jpeg-6a/cjpeg
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.414=3> 2.45% 1.9966
>>> 2.0456 0.0004 3.55% 0.0004
>>> MultiSource/Benchmarks/VersaBench/dbms/dbms
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.276=3> 2.44% 0.5900
>>> 0.6044 0.0032 2.65% 0.0032
>>> MultiSource/Benchmarks/MiBench/consumer-lame/consumer-lame
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.271=3> 2.38% 1.3152
>>> 1.3465 0.0018 2.82% 0.0018
>>> MultiSource/Benchmarks/MiBench/telecomm-gsm/telecomm-gsm
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.297=3> 2.30% 0.4994
>>> 0.5109 0.0017 2.76% 0.0017
>>> MultiSource/Applications/ClamAV/clamscan
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.214=3> 2.22% 4.2109
>>> 4.3044 0.0044 2.95% 0.0044
>>> SingleSource/Benchmarks/Misc-C++/stepanov_container
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.372=3> 2.21% 0.6435
>>> 0.6577 0.0003 1.51% 0.0003
>>> SingleSource/Benchmarks/Misc-C++/bigfib
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.321=3> 2.04% 0.5012
>>> 0.5114 0.0004 1.61% 0.0004
>>> MultiSource/Applications/SPASS/SPASS
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.25=3> 2.02% 5.5417
>>> 5.6538 0.0039 2.44% 0.0039
>>> MultiSource/Benchmarks/mediabench/gsm/toast/toast
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.123=3> 2.02% 0.5000
>>> 0.5101 0.0012 2.74% 0.0012
>>> MultiSource/Applications/JM/lencod/lencod
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.384=3> 1.85% 4.6177
>>> 4.7032 0.0080 2.43% 0.0080
>>> MultiSource/Applications/JM/ldecod/ldecod
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.125=3> 1.79% 2.1653
>>> 2.2040 0.0005 2.13% 0.0005
>>> MultiSource/Applications/d/make_dparser
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.134=3> 1.78% 1.0781
>>> 1.0973 0.0005 2.12% 0.0005
>>> MultiSource/Benchmarks/MiBench/consumer-typeset/consumer-typeset
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.392=3> 1.55% 4.4195
>>> 4.4882 0.0010 2.22% 0.0010
>>> MultiSource/Benchmarks/ASCI_Purple/SMG2000/smg2000
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.310=3> 1.48% 2.7292
>>> 2.7695 0.0071 2.32% 0.0071
>>> MultiSource/Applications/oggenc/oggenc
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.293=3> 1.42% 1.5932
>>> 1.6158 0.0016 1.22% 0.0016
>>> MultiSource/Applications/treecc/treecc
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.181=3> 1.41% 0.7875
>>> 0.7986 0.0012 2.58% 0.0012
>>> MultiSource/Benchmarks/MallocBench/gs/gs
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.301=3> 1.40% 1.8794
>>> 1.9058 0.0036 2.02% 0.0036
>>> MultiSource/Applications/lua/lua
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.155=3> 1.39% 1.4269
>>> 1.4467 0.0010 2.18% 0.0010
>>> MultiSource/Applications/kimwitu++/kc
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.412=3> 1.32% 11.9555
>>> 12.1130 0.0069 1.24% 0.0069
>>> MultiSource/Applications/hbd/hbd
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.164=3> 1.30% 0.9697
>>> 0.9823 0.0006 1.89% 0.0006
>>> MultiSource/Benchmarks/mafft/pairlocalalign
>>> <http://llvm.org/perf/db_default/v4/nts/1283/graph?test.426=3> 1.08% 2.1013
>>> 2.1239 0.0018 1.91% 0.0018
>>>
>>> *Report Time*: 1.96s
>>>
>>>
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