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todo for bs branch

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Joey Hess 2019-11-26 16:11:55 -04:00
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[[!comment format=mdwn
username="joey"
subject="""profiling"""
date="2019-11-26T20:05:28Z"
content="""
Profiling the early version of the `bs` branch.
Tue Nov 26 16:05 2019 Time and Allocation Profiling Report (Final)
git-annex +RTS -p -RTS find
total time = 2.75 secs (2749 ticks @ 1000 us, 1 processor)
total alloc = 1,642,607,120 bytes (excludes profiling overheads)
COST CENTRE MODULE SRC %time %alloc
inAnnex'.\ Annex.Content Annex/Content.hs:(103,61)-(118,31) 31.2 46.8
keyFile' Annex.Locations Annex/Locations.hs:(567,1)-(577,30) 5.3 6.2
encodeW8 Utility.FileSystemEncoding Utility/FileSystemEncoding.hs:(189,1)-(191,70) 3.3 4.2
>>=.\ Data.Attoparsec.Internal.Types Data/Attoparsec/Internal/Types.hs:(146,9)-(147,44) 2.9 0.8
>>=.\.succ' Data.Attoparsec.Internal.Types Data/Attoparsec/Internal/Types.hs:146:13-76 2.6 0.3
keyFile'.esc Annex.Locations Annex/Locations.hs:(573,9)-(577,30) 2.5 5.5
parseLinkTarget Annex.Link Annex/Link.hs:(254,1)-(262,25) 2.4 4.4
getAnnexLinkTarget'.probesymlink Annex.Link Annex/Link.hs:78:9-46 2.4 2.8
w82s Utility.FileSystemEncoding Utility/FileSystemEncoding.hs:217:1-15 2.3 6.0
keyPath Annex.Locations Annex/Locations.hs:(606,1)-(608,23) 1.9 4.0
parseKeyVariety Types.Key Types/Key.hs:(323,1)-(371,42) 1.8 0.0
getState Annex Annex.hs:(251,1)-(254,27) 1.7 0.4
fileKey'.go Annex.Locations Annex/Locations.hs:588:9-55 1.4 0.8
fileKey' Annex.Locations Annex/Locations.hs:(586,1)-(596,41) 1.4 1.7
hashUpdates.\.\.\ Crypto.Hash Crypto/Hash.hs:85:48-99 1.3 0.0
parseLinkTargetOrPointer Annex.Link Annex/Link.hs:(239,1)-(243,25) 1.2 0.1
withPtr Basement.Block.Base Basement/Block/Base.hs:(395,1)-(404,31) 1.2 0.6
primitive Basement.Monad Basement/Monad.hs:72:5-18 1.0 0.1
decodeBS' Utility.FileSystemEncoding Utility/FileSystemEncoding.hs:151:1-31 1.0 2.8
mkKeySerialization Types.Key Types/Key.hs:(115,1)-(117,22) 0.7 1.1
w82c Utility.FileSystemEncoding Utility/FileSystemEncoding.hs:211:1-28 0.6 1.1
Comparing with [[/profiling]] results, the alloc is down significantly.
And the main IO actions are getting a larger share of the runtime.
There is still significantly conversion going on, encodeW8 and w82s and
decodeBS' and w82c. Likely another 5% or so speedup if that's eliminated.
"""]]