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Duncan Sands

2012-Jul-05 08:33 UTC

[LLVMdev] Exception handling slowdown?

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
>>>
>>>
>>> _______________________________________________
>>> llvm-testresults mailing list
>>> llvm-testresults at cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-testresults
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>

Bill Wendling

2012-Jul-06 22:48 UTC

head link

[LLVMdev] Exception handling slowdown?

On Jul 5, 2012, at 1:33 AM, Duncan Sands wrote:
> 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.
> Crumbs.

John, Do you know of anything that went into clang that could account for EH
slowdowns?

-bw
> 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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>>>> llvm-testresults at cs.uiuc.edu
>>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-testresults
>>> 
>>> _______________________________________________
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>>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>> 
> 
>

John McCall

2012-Jul-07 00:20 UTC

head link

[LLVMdev] Exception handling slowdown?

On Jul 6, 2012, at 3:48 PM, Bill Wendling wrote:> On Jul 5, 2012, at 1:33 AM, Duncan Sands wrote:
>> 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.
>> 
> Crumbs.
> 
> John, Do you know of anything that went into clang that could account for
EH slowdowns?
Is this Linux?  Is it possibly just Objective-C tests?  There have been several
patches about ObjC runtimes recently that affected exceptions.

John.

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