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Re: Big find_cross_jump performance regression.
- To: matzmich at cs dot tu-berlin dot de
- Subject: Re: Big find_cross_jump performance regression.
- From: Brad Lucier <lucier at math dot purdue dot edu>
- Date: Mon, 22 May 2000 12:00:03 -0500 (EST)
- Cc: gcc at gcc dot gnu dot org, feeley at iro dot umontreal dot ca
I did a clean build this morning and got the same thing (this is not profiled,
so it's faster):
popov-207% /export/u11/lucier/programs/egcs/objdir/gcc/cc1 -fpic -fno-math-errno -mieee -mcpu=ev6 -O1 _t-c-2.i
__copysignf copysignf __copysign copysign __fabsf fabsf __fabs fabs __floorf __floor floorf floor __fdimf fdimf __fdim fdim ___H__20___t_2d_c_2d_2 {GC 41622k -> 7909k} {GC 11861k -> 8371k} {GC 11507k -> 8711k} ___init_proc {GC 22919k -> 2097k} ____20___t_2d_c_2d_2
Execution times (seconds)
garbage collection : 0.25 ( 0%) usr 0.00 ( 1%) sys 0.25 ( 0%) wall
parser : 2.61 ( 0%) usr 0.14 (50%) sys 2.78 ( 0%) wall
varconst : 0.01 ( 0%) usr 0.00 ( 1%) sys 0.01 ( 0%) wall
integration : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
jump : 726.39 (99%) usr 0.04 (15%) sys 726.90 (99%) wall
CSE : 0.67 ( 0%) usr 0.00 ( 1%) sys 0.71 ( 0%) wall
loop analysis : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
CSE 2 : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
flow analysis : 0.65 ( 0%) usr 0.01 ( 7%) sys 0.67 ( 0%) wall
combiner : 0.69 ( 0%) usr 0.00 ( 0%) sys 0.69 ( 0%) wall
if-conversion : 0.13 ( 0%) usr 0.01 ( 4%) sys 0.14 ( 0%) wall
local alloc : 0.41 ( 0%) usr 0.00 ( 0%) sys 0.41 ( 0%) wall
global alloc : 0.72 ( 0%) usr 0.03 (11%) sys 0.75 ( 0%) wall
reload CSE regs : 2.28 ( 0%) usr 0.00 ( 0%) sys 2.30 ( 0%) wall
flow 2 : 0.57 ( 0%) usr 0.00 ( 2%) sys 0.58 ( 0%) wall
if-conversion 2 : 0.12 ( 0%) usr 0.00 ( 3%) sys 0.13 ( 0%) wall
shorten branches : 0.05 ( 0%) usr 0.00 ( 0%) sys 0.05 ( 0%) wall
final : 0.31 ( 0%) usr 0.00 ( 2%) sys 0.32 ( 0%) wall
symout : 0.00 ( 0%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall
rest of compilation : 0.34 ( 0%) usr 0.00 ( 0%) sys 0.33 ( 0%) wall
TOTAL : 736.28 0.28 737.11
This is on alphaev6-unknown-linux-gnu.
Brad