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Distinct solutions after online classification (auto/crowd-tune GCC compiler flags (minimize execution time))

Scenario UID	8289e0cf24346aa7 (experiment.tune.compiler.flags.gcc.e)
Data UID	27521a143a596ebc

Discuss (optimizations to improve compilers, semantic/data set/hardware features to improve predictions, etc):	GitHub wiki, Google group

Download:	[ All solutions in JSON ], [ Solutions' classification in JSON ]
Reproduce all (with reactions):	ck replay 8289e0cf24346aa7:27521a143a596ebc

Compiler	GCC 4.9
CPU	Qualcomm Technologies, Inc MSM8994
Objective	min

Improvement key IK1	Main kernel execution time speedup [min]
Improvement key IK2	Code size improvement

Improvements (<4% variation)

Distinct workload for highest improvement

Solution UID

IK1

IK2

New distinct optimization choices

Ref

Best species

Worst species

Touched

Iters

Program

CMD

Dataset

Dataset file

CPU freq (MHz)

Cores

Platform

Replay

81f91b0d913d68e0

2.87

0.99

-O3 -fno-branch-target-load-optimize -fconserve-stack -fcprop-registers -fno-cx-limited-range -fno-data-sections -fdevirtualize-speculatively -fno-gcse -findirect-inlining -fno-ipa-pta -fno-ipa-pure-const -fno-ipa-reference -fno-ira-loop-pressure -fmove-loop-invariants -fpeephole -fpeephole2 -fno-omit-frame-pointer -fno-prefetch-loop-arrays -freorder-blocks -fno-rounding-math -fno-sched-critical-path-heuristic -fno-sched-last-insn-heuristic -fno-selective-scheduling -fsel-sched-pipelining-outer-loops -fsingle-precision-constant -fno-split-wide-types -ftree-ch -ftree-loop-if-convert-stores -ftree-loop-ivcanon -fno-tree-switch-conversion -fno-tree-vrp -fno-unsafe-loop-optimizations -fuse-linker-plugin -falign-functions=0 -falign-jumps=0 --param predictable-branch-outcome=41 --param min-inline-recursive-probability=3 --param comdat-sharing-probability=27 --param max-unroll-times=0 --param max-completely-peel-loop-nest-depth=6 --param hot-bb-count-ws-permille=206 --param unlikely-bb-count-fraction=3254 --param align-threshold=5 --param tracer-max-code-growth=24 --param max-goto-duplication-insns=7 --param max-cse-path-length=10 --param omega-max-eqs=246 --param max-reload-search-insns=83 --param sched-spec-prob-cutoff=26 --param selsched-max-sched-times=4 --param max-last-value-rtl=2420 --param min-size-for-stack-sharing=2 --param max-fields-for-field-sensitive=0 --param prefetch-latency=352 --param l1-cache-size=113 --param sccvn-max-scc-size=12832 --param ira-max-loops-num=149 --param ira-loop-reserved-regs=0 --param asan-instrument-writes=1 --param asan-use-after-return=1

-O3

milepost-codelet-mibench-automotive-susan-s-src-susan-codelet-1-1

default

audio-wav-0001

data.wav

LETV LE 1 PRO

Android 5.0.2

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