[Haskell-cafe] Profiling code using tagsoup

[Brandon Allbery]

You would need to show your source; that line by itself is not enough.

On Thu, Feb 8, 2018 at 2:20 PM, Fabien R <theedge456 at free.fr> wrote:

> Hello,
> I have troubles profiling my EPG grabber.
>
> The profile log is:
> --------------------------
>         Thu Feb  8 17:14 2018 Time and Allocation Profiling Report  (Final)
>
>            tv_grab_fr +RTS -pa -hc -i1 -RTS --days 1 --output-file /res.xml
>
>         total time  =      103.35 secs   (103353 ticks @ 1000 us, 1
> processor)
>         total alloc = 7,602,130,080 bytes  (excludes profiling overheads)
>
> COST CENTRE                                     MODULE
>                     SRC
>                   %time %alloc  ticks     bytes
>
> GC                                              GC
>                     <built-in>
>                    50.5    0.0  52166     57504
> parse
> Text.HTML.TagSoup.Specification
> src/Text/HTML/TagSoup/Specification.hs:35:1-19
> 15.4   15.2  15879 1159030944
> output
> Text.HTML.TagSoup.Implementation
> src/Text/HTML/TagSoup/Implementation.hs:(80,1)-(142,44)
> 13.5   22.9  14000 1743780696
> expand
> Text.HTML.TagSoup.Implementation
> src/Text/HTML/TagSoup/Implementation.hs:(49,1)-(60,30)
> 11.6   39.0  11976 2962740856
> --------------------------
> Further in the log, I see:
>
> TvGrabPrograms.mySccGetProgramDetails
> TvGrabPrograms
> src/TvGrabPrograms.hs:69:1-17                             5000
> 19    0.6    2.2    42.3   79.2    640 165979512
>      ~/=
>  Text.HTML.TagSoup
> src/Text/HTML/TagSoup.hs:103:1-25                         5543
> 135987    0.1    0.0    28.5   44.4     54   3263688
>       ~==
>  Text.HTML.TagSoup
> src/Text/HTML/TagSoup.hs:(87,1)-(99,21)                   5544
> 135987    0.5    0.3    28.4   44.3    485  19485856
>        parseTags
>  Text.HTML.TagSoup.Parser
> src/Text/HTML/TagSoup/Parser.hs:16:1-41                   5545
> 135987    0.0    0.0    27.9   44.1     44         0
>         parseTagsOptions
>  Text.HTML.TagSoup.Parser
> src/Text/HTML/TagSoup/Parser.hs:25:1-39                   5546
> 135987    0.1    0.1    27.9   44.1    138   7615272
>          parseTagsOptions
>  Text.HTML.TagSoup.Manual
> src/Text/HTML/TagSoup/Manual.hs:12:1-54                   5547
> 135987    0.4    0.3    27.7   44.0    422  22845912
>           output
>  Text.HTML.TagSoup.Implementation
> src/Text/HTML/TagSoup/Implementation.hs:(80,1)-(142,44)   5548
> 135987    8.0   13.1     8.0   13.2   8221 994675336
> --------------------------
> But I see no function (~/=) calling (~==) calling parseTags in my code.
>
> The only line using parseTags is:
> let !tl = parseTags $ L8.unpack $ responseBody httpRsp
>
> Did I miss something ?
>
> Thanks in advance,
> Fabien
>
>
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-- 
brandon s allbery kf8nh                               sine nomine associates
allbery.b at gmail.com                                  ballbery at sinenomine.net
unix, openafs, kerberos, infrastructure, xmonad        http://sinenomine.net
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