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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	3bd27ebca64d24ad

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 8289e0cf24346aa7:3bd27ebca64d24ad

Compiler	GCC 4.9
CPU	sun8i
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

f09957fcb10f0421

1.37

0.99

-O3 -fcompare-elim -fdce -fdevirtualize -fno-dse -fearly-inlining -ffloat-store -fno-gcse-lm -fno-graphite-identity -floop-parallelize-all -fmerge-all-constants -fpredictive-commoning -fno-selective-scheduling2 -fno-shrink-wrap -fno-tree-bit-ccp -fno-tree-pre -ftree-slsr -ftree-ter --param comdat-sharing-probability=28 --param gcse-after-reload-partial-fraction=5 --param max-hoist-depth=38 --param max-unroll-times=10 --param max-peel-times=4 --param sms-min-sc=2 --param tracer-min-branch-probability-feedback=28 --param min-insn-to-prefetch-ratio=10 --param max-vartrack-expr-depth=2 --param ipa-cp-loop-hint-bonus=26 --param tree-reassoc-width=0 --param asan-use-after-return=1

-O3

milepost-codelet-mibench-security-pgp-e-src-mpilib-codelet-3-1

default

TABLETEXPRESS X10

Android 5.1.1

4d9a6597945a9d2f

1.25

0.21

-O3 -fno-btr-bb-exclusive -fno-fat-lto-objects -ffloat-store -fgcse-lm -fkeep-inline-functions -flto -freorder-blocks-and-partition -fno-rounding-math -fno-sched-spec-load -fsel-sched-pipelining -fno-tree-loop-optimize -fno-tree-vectorize -funit-at-a-time -fsched-stalled-insns-dep=0 --param inline-min-speedup=19 --param min-vect-loop-bound=2 --param max-pending-list-length=28 --param ipcp-unit-growth=0 --param large-stack-frame=189 --param gcse-unrestricted-cost=1 --param max-completely-peeled-insns=116 --param max-unswitch-level=5 --param max-iterations-to-track=863 --param tracer-max-code-growth=88 --param max-cse-insns=131 --param iv-consider-all-candidates-bound=27 --param sink-frequency-threshold=74 --param max-sched-region-insns=96 --param max-sched-extend-regions-iters=0 --param sched-mem-true-dep-cost=0 --param prefetch-latency=55 --param max-vartrack-expr-depth=0 --param ipa-cp-eval-threshold=553 --param lto-partitions=31 --param max-slsr-cand-scan=138196 --param asan-memintrin=0

-O3

milepost-codelet-mibench-consumer-tiffmedian-src-tiffmedian-codelet-6-1

default

TABLETEXPRESS X10

Android 5.1.1

f18481bbae302989

1.25

1.00

-O3 -fcprop-registers -fno-cx-fortran-rules -fgcse -fno-if-conversion2 -fno-indirect-inlining -fipa-cp -fipa-pure-const -fno-ipa-reference -fira-loop-pressure -fisolate-erroneous-paths-attribute -fmodulo-sched-allow-regmoves -fbranch-count-reg -fpeephole -fno-ree -fsched-pressure -fsched-spec-load-dangerous -fschedule-insns -fsection-anchors -fno-split-wide-types -fthread-jumps -ftree-copyrename -ftree-pta --param max-inline-insns-recursive-auto=384 --param max-variable-expansions-in-unroller=2 --param gcse-after-reload-partial-fraction=1 --param max-iterations-to-track=378 --param sms-loop-average-count-threshold=0 --param builtin-expect-probability=70 --param iv-always-prune-cand-set-bound=8 --param omega-max-vars=3 --param omega-max-eqs=72 --param max-reload-search-insns=35 --param max-sched-region-insns=1 --param max-sched-extend-regions-iters=0 --param ssp-buffer-size=13 --param max-fields-for-field-sensitive=0 --param max-sched-ready-insns=61 --param ipa-cp-eval-threshold=695

-O3

milepost-codelet-mibench-telecomm-gsm-src-rpe-codelet-4-1

default

TABLETEXPRESS X10

Android 5.1.1

4abe8b5afccde180

1.22

1.00

-O3 -fbtr-bb-exclusive -fcheck-data-deps -fcrossjumping -fno-gcse-lm -fira-share-spill-slots -fno-defer-pop -fpredictive-commoning -fno-split-wide-types -fvariable-expansion-in-unroller -ffp-contract=off --param gcse-after-reload-partial-fraction=4 --param gcse-after-reload-critical-fraction=8 --param max-peel-times=23 --param max-once-peeled-insns=573 --param max-predicted-iterations=122 --param tracer-max-code-growth=169 --param max-grow-copy-bb-insns=1 --param max-cse-path-length=5 --param min-spec-prob=63 --param selsched-insns-to-rename=2 --param loop-max-datarefs-for-datadeps=976 --param allow-store-data-races=1 --param uninit-control-dep-attempts=349

-O3

milepost-codelet-mibench-consumer-lame-src-newmdct-codelet-3-1

default

1008, 1008, 1008, 1008, 1008, 1008, 1008, 1008

TABLETEXPRESS X10

Android 5.1.1

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