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[Sbcl-devel] Some profiling on host-1
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From: Brian M. <br...@ma...> - 2005-08-06 02:05:17
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I've done a little profiling on host-1 on 0.9.3 on PPC, and based on
the results I think there are some functions which need to be looked
over and optimized. Below this paragraph is the results of where the
first 50% of the time is spent. It should be obvious from this which
functions need serious work: for instance, SB-C::GET-INFO-VALUE
accounts for 2.8% of the time, more than any other compiler function,
and it doesn't look particularly hairy. SXHASH and GETHASH show up
quite strongly, as do EQUAL and EQL. SB-INT:EQUAL-BUT-NO-CAR-
RECURSION is #14 on the list, and right now I'm testing a build with
a version which is twice as fast. I think there is definitely some
low-hanging fruit to be found here.
Self Cumul Total
Nr Count % Count % Count % Function
------------------------------------------------------------------------
1 399 4.2 399 4.2 399 4.2 "no debug information
for frame"
2 329 3.4 332 3.5 728 7.6 (SB-C::TL-XEP SB-
KERNEL:SUB-GC)
3 267 2.8 427 4.5 995 10.4 (SB-C::TL-XEP SB-C::GET-
INFO-VALUE)
4 199 2.1 222 2.3 1194 12.5 (SB-C::TL-XEP SXHASH)
5 172 1.8 216 2.3 1366 14.3 (SB-C::TL-XEP GETHASH)
6 133 1.4 270 2.8 1499 15.7 (SB-C::TL-XEP SB-
KERNEL:VALUES-SPECIFIER-TYPE)
7 130 1.4 172 1.8 1629 17.0 (SB-C::TL-XEP EQUAL)
8 126 1.3 194 2.0 1755 18.3 (SB-C::TL-XEP SB-
KERNEL:HAIRY-DATA-VECTOR-SET)
9 120 1.3 121 1.3 1875 19.6 (SB-C::TL-XEP EQL)
10 107 1.1 157 1.6 1982 20.7 (SB-C::TL-XEP SB-
KERNEL:CSUBTYPEP)
11 105 1.1 105 1.1 2087 21.8 (SB-C::TL-XEP SB-KERNEL::
%MAKE-INSTANCE-WITH-LAYOUT)
12 105 1.1 105 1.1 2192 22.9 (SB-C::TL-XEP SB-KERNEL:%
WITH-ARRAY-DATA)
13 102 1.1 111 1.2 2294 24.0 (SB-C::TL-XEP SB-
C::COMPACT-INFO-LOOKUP)
14 100 1.0 121 1.3 2394 25.0 (SB-C::TL-XEP SB-
INT:EQUAL-BUT-NO-CAR-RECURSION)
15 97 1.0 218 2.3 2491 26.0 (SB-C::TL-XEP SB-
KERNEL:SPECIFIER-TYPE)
16 92 1.0 130 1.4 2583 27.0 (SB-C::TL-XEP SB-
KERNEL:HAIRY-DATA-VECTOR-REF)
17 88 0.9 169 1.8 2671 27.9 (SB-C::TL-XEP SB-
KERNEL::MAKE-VALUES-TYPE-CACHED)
18 79 0.8 302 3.2 2750 28.7 (SB-C::TL-XEP SB-C::IR1-
CONVERT)
19 75 0.8 85 0.9 2825 29.5 (SB-C::TL-XEP ADJOIN)
20 68 0.7 68 0.7 2893 30.2 (SB-C::TL-XEP SB-C::NODE-
HOME-LAMBDA)
21 66 0.7 66 0.7 2959 30.9 (LAMBDA (SB-PCL::.ARG0.))
22 64 0.7 88 0.9 3023 31.6 (SB-C::TL-XEP SB-
KERNEL:TYPE=)
23 63 0.7 63 0.7 3086 32.2 (SB-C::TL-XEP SB-INT:MEMQ)
24 61 0.6 61 0.6 3147 32.9 (SB-C::TL-XEP ARRAY-
DIMENSION)
25 61 0.6 116 1.2 3208 33.5 (SB-C::TL-XEP SB-
C::POLICY-QUALITY)
26 61 0.6 100 1.0 3269 34.1 (SB-C::TL-XEP SB-C::%
EMIT-GENERIC-VOP)
27 60 0.6 92 1.0 3329 34.8 (SB-C::TL-XEP MEMBER)
28 59 0.6 59 0.6 3388 35.4 (SB-C::TL-XEP SB-INT:ASSQ)
29 55 0.6 120 1.3 3443 36.0 (SB-C::TL-XEP REPLACE)
30 51 0.5 51 0.5 3494 36.5 (SB-C::TL-XEP SB-
BIGNUM:BIGNUM-TRUNCATE)
31 48 0.5 48 0.5 3542 37.0 (SB-C::TL-XEP COPY-LIST)
32 48 0.5 70 0.7 3590 37.5 (SB-C::TL-XEP SB-
C::CONSTRAINT-PROPAGATE-IN-BLOCK)
33 44 0.5 114 1.2 3634 38.0 (SB-C::TL-XEP SB-
IMPL::CONCAT-TO-SIMPLE*)
34 44 0.5 90 0.9 3678 38.4 (SB-C::TL-XEP SB-C::MAKE-
REF)
35 42 0.4 42 0.4 3720 38.9 (SB-C::TL-XEP SB-INT:DELQ)
36 42 0.4 42 0.4 3762 39.3 (SB-C::TL-XEP ARRAY-RANK)
37 42 0.4 64 0.7 3804 39.7 (SB-C::TL-XEP SB-KERNEL:%
COERCE-CALLABLE-TO-FUN)
38 41 0.4 52 0.5 3845 40.2 (SB-C::TL-XEP NUNION)
39 41 0.4 44 0.5 3886 40.6 (LABELS SB-IMPL::S)
40 40 0.4 40 0.4 3926 41.0 (SB-C::TL-XEP SB-
C::BLOCK-HOME-LAMBDA-OR-NULL)
41 39 0.4 76 0.8 3965 41.4 (SB-C::TL-XEP SB-C::IR1-
OPTIMIZE-BLOCK)
42 39 0.4 165 1.7 4004 41.8 (SB-C::TL-XEP SB-C::IR1-
CONVERT-LAMBDA-BODY)
43 39 0.4 41 0.4 4043 42.2 (SB-C::TL-XEP SB-
C::VOLATILE-INFO-LOOKUP)
44 39 0.4 53 0.6 4082 42.6 (SB-C::TL-XEP SB-C::MAKE-
LAMBDA)
45 38 0.4 59 0.6 4120 43.0 (SB-C::TL-XEP SB-KERNEL:%
PUTHASH)
46 37 0.4 37 0.4 4157 43.4 (SB-C::TL-XEP KEYWORDP)
47 37 0.4 57 0.6 4194 43.8 (SB-C::TL-XEP SB-
KERNEL:TYPE-INTERSECTION2)
48 37 0.4 37 0.4 4231 44.2 "foreign function write"
49 36 0.4 41 0.4 4267 44.6 (SB-C::TL-XEP SB-C::MAKE-
LEXENV)
50 36 0.4 51 0.5 4303 44.9 (SB-C::TL-XEP MAKE-ARRAY)
51 33 0.3 125 1.3 4336 45.3 (SB-C::TL-XEP SB-
IMPL::VECTOR-SUBSEQ*)
52 33 0.3 77 0.8 4369 45.6 (SB-C::TL-XEP SB-
C::REFERENCE-LEAF)
53 33 0.3 49 0.5 4402 46.0 (SB-C::TL-XEP SB-C::LVAR-
TYPE)
54 33 0.3 83 0.9 4435 46.3 (SB-C::TL-XEP SB-
KERNEL::SIMPLIFY-INTERSECTIONS)
55 32 0.3 60 0.6 4467 46.7 (SB-C::XEP (LAMBDA (SB-
KERNEL:INSTANCE)))
56 32 0.3 33 0.3 4499 47.0 (SB-C::TL-XEP SB-
C::PROPAGATE-LIVE-TNS)
57 31 0.3 53 0.6 4530 47.3 (SB-C::TL-XEP SB-
KERNEL:VALUES-TYPE-INTERSECTION)
58 31 0.3 31 0.3 4561 47.6 (SB-C::TL-XEP SB-C:MAKE-
TN-REF)
59 30 0.3 30 0.3 4591 48.0 (SB-C::TL-XEP SB-C::NODE-
ENCLOSING-CLEANUP)
60 29 0.3 29 0.3 4620 48.3 "foreign function
ppc_flush_cache_line"
61 28 0.3 52 0.5 4648 48.6 (SB-C::TL-XEP SB-
C::FLUSH-DEAD-CODE)
62 28 0.3 28 0.3 4676 48.8 (SB-C::TL-XEP SB-C::MAKE-
BLOCK)
63 28 0.3 28 0.3 4704 49.1 (SB-C::TL-XEP SB-INT:MIX)
64 28 0.3 28 0.3 4732 49.4 (SB-C::TL-XEP NCONC)
65 28 0.3 74 0.8 4760 49.7 (SB-C::TL-XEP SB-KERNEL::
%TYPE-INTERSECTION)
66 28 0.3 107 1.1 4788 50.0 (SB-C::TL-XEP SB-C::IR1-
OPTIMIZE)
--
Brian Mastenbrook
br...@ma...
http://www.iscblog.info/
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