qemu-devel
[Top][All Lists]
Advanced
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] Debian 7.8.0 SPARC64 on qemu - anything i can do to spe

From: Dennis Luehring
Subject: Re: [Qemu-devel] Debian 7.8.0 SPARC64 on qemu - anything i can do to speedup the emulation?
Date: Tue, 18 Aug 2015 13:21:54 +0200
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 
Am 18.08.2015 um 10:19 schrieb Aurelien Jarno:

How big is the source file and the output file? I find strange that I/O
impacts so much for a compilation which should be CPU bounded. Maybe try
to add the -pipe argument to g++.


and the gcc -ftime-report
g++ src/pugixml.cpp -g -Wall -Wextra -Werror -pedantic -std=c++0x -c -MMD -MP -ftime-report 

Execution times (seconds)
callgraph construction: 3.95 ( 2%) usr 1.54 ( 2%) sys 5.47 ( 2%) wall 1344 kB ( 2%) ggc callgraph optimization: 2.77 ( 1%) usr 1.35 ( 2%) sys 4.02 ( 1%) wall 1155 kB ( 1%) ggc ipa free lang data : 0.01 ( 0%) usr 0.00 ( 0%) sys 0.01 ( 0%) wall 0 kB ( 0%) ggc cfg cleanup : 0.73 ( 0%) usr 0.17 ( 0%) sys 0.93 ( 0%) wall 7 kB ( 0%) ggc trivially dead code : 0.57 ( 0%) usr 0.22 ( 0%) sys 0.95 ( 0%) wall 0 kB ( 0%) ggc df live regs : 0.76 ( 0%) usr -0.01 (-0%) sys 0.77 ( 0%) wall 0 kB ( 0%) ggc df reg dead/unused notes: 0.95 ( 0%) usr 0.07 ( 0%) sys 1.13 ( 0%) wall 839 kB ( 1%) ggc register information : 0.60 ( 0%) usr 0.03 ( 0%) sys 0.64 ( 0%) wall 0 kB ( 0%) ggc alias analysis : 0.37 ( 0%) usr 0.15 ( 0%) sys 0.49 ( 0%) wall 311 kB ( 0%) ggc rebuild jump labels : 0.49 ( 0%) usr 0.11 ( 0%) sys 0.50 ( 0%) wall 0 kB ( 0%) ggc preprocessing : 7.70 ( 4%) usr 8.02 ( 9%) sys 15.55 ( 5%) wall 801 kB ( 1%) ggc parser : 42.51 (21%) usr 17.30 (20%) sys 61.96 (22%) wall 32967 kB (37%) ggc name lookup : 27.33 (14%) usr 36.38 (43%) sys 61.97 (22%) wall 3781 kB ( 4%) ggc inline heuristics : 1.37 ( 1%) usr 0.21 ( 0%) sys 1.66 ( 1%) wall 0 kB ( 0%) ggc tree gimplify : 6.54 ( 3%) usr 0.50 ( 1%) sys 7.46 ( 3%) wall 8194 kB ( 9%) ggc tree eh : 0.80 ( 0%) usr 0.23 ( 0%) sys 0.94 ( 0%) wall 469 kB ( 1%) ggc tree CFG construction : 0.96 ( 0%) usr 0.22 ( 0%) sys 1.24 ( 0%) wall 3391 kB ( 4%) ggc tree CFG cleanup : 1.46 ( 1%) usr 0.22 ( 0%) sys 1.83 ( 1%) wall 11 kB ( 0%) ggc tree find ref. vars : 0.34 ( 0%) usr 0.07 ( 0%) sys 0.36 ( 0%) wall 346 kB ( 0%) ggc tree PHI insertion : 0.34 ( 0%) usr 0.09 ( 0%) sys 0.43 ( 0%) wall 409 kB ( 0%) ggc tree SSA rewrite : 0.32 ( 0%) usr 0.18 ( 0%) sys 0.61 ( 0%) wall 1243 kB ( 1%) ggc tree SSA other : 2.30 ( 1%) usr 1.20 ( 1%) sys 3.74 ( 1%) wall 152 kB ( 0%) ggc tree operand scan : 1.24 ( 1%) usr 1.12 ( 1%) sys 2.35 ( 1%) wall 2174 kB ( 2%) ggc dominance frontiers : 0.09 ( 0%) usr 0.04 ( 0%) sys 0.08 ( 0%) wall 0 kB ( 0%) ggc dominance computation : 1.15 ( 1%) usr 0.23 ( 0%) sys 1.11 ( 0%) wall 0 kB ( 0%) ggc expand : 33.10 (17%) usr 6.31 ( 7%) sys 39.45 (14%) wall 16724 kB (19%) ggc varconst : 0.27 ( 0%) usr 0.12 ( 0%) sys 0.60 ( 0%) wall 44 kB ( 0%) ggc jump : 0.16 ( 0%) usr 0.16 ( 0%) sys 0.34 ( 0%) wall 60 kB ( 0%) ggc integrated RA : 13.32 ( 7%) usr 1.00 ( 1%) sys 13.84 ( 5%) wall 2521 kB ( 3%) ggc reload : 11.42 ( 6%) usr 0.08 ( 0%) sys 11.68 ( 4%) wall 3016 kB ( 3%) ggc thread pro- & epilogue: 2.06 ( 1%) usr 0.11 ( 0%) sys 2.24 ( 1%) wall 1028 kB ( 1%) ggc final : 16.51 ( 8%) usr 0.36 ( 0%) sys 17.28 ( 6%) wall 609 kB ( 1%) ggc symout : 11.74 ( 6%) usr 0.54 ( 1%) sys 12.19 ( 4%) wall 6948 kB ( 8%) ggc plugin execution : 3.81 ( 2%) usr 6.63 ( 8%) sys 9.67 ( 3%) wall 0 kB ( 0%) ggc rest of compilation : 0.02 ( 0%) usr 0.02 ( 0%) sys 0.04 ( 0%) wall 0 kB ( 0%) ggc TOTAL : 198.47 85.23 284.09 89326 kB
reply via email to
[Prev in Thread] Current Thread [Next in Thread]