Thanks for the tip. I've updated the last part of the script accordingly:

# Count number of bytes in the xptdata.o file.
cd o64
echo -n "xptdata.o bytes: "
wc --bytes xpcom/reflect/xptinfo/xptdata.o
cd ..

The current measurements are now:

Tue, Jun 26, 2018: m-i 423583:4a20ed6e2fee
.idl files: 905
.idl lines: 97278 total
xptdata.o bytes: 1139160

Nick

On Tue, Jun 26, 2018 at 8:50 PM, Nika Layzell <n...@thelayzells.com> wrote:

> Measuring the size of the xpt files is no longer as relevant. Since mccr8
> and I rewrote xptinfo, they're only used during the build step, and are not
> bundled. They're combined into a single .cpp file (xptdata.cpp) which
> generates shared static pages (mostly) without relocations :-).
>
> Perhaps measuring the size of xptdata.o could be more useful?
>
> - Nika
>
> On Tue, Jun 26, 2018, 12:31 AM Nicholas Nethercote <n.netherc...@gmail.com>
> wrote:
>
>> Hi,
>>
>> After Firefox 57 removed support for legacy extensions, I decided to
>> (roughly) track how much XPIDL code we have. Here are some measurements:
>>
>> Fri, Aug 4, 2017: m-i 372493:72873c109b1b
>> .idl files: 1167
>> .idl lines: 110240 total
>> .xpt bytes: 417621 total
>>
>> Thu, Aug 17, 2017: m-i 375206:7a794cd2aee1
>> .idl files: 1150
>> .idl lines: 108854 total
>> .xpt bytes: 412984 total
>>
>> Tue, Sep 26, 2017: m-i 382849:42a6a1c9c4cf
>> .idl files: 1122
>> .idl lines: 107963 total
>> .xpt bytes: 411283 total
>>
>> Tue, Nov 14, 2017: m-i 391533:479f3105ad3b
>> .idl files: 1087
>> .idl lines: 106809 total
>> .xpt bytes: 409510 total
>>
>> Thu, Feb 01, 2018: m-i 401956:8ebdf597ade8
>> .idl files: 1027
>> .idl lines: 103800 total
>> .xpt bytes: 398695 total
>>
>> Tue, Jun 26, 2018: m-i 423583:4a20ed6e2fee
>> .idl files: 905
>> .idl lines: 97278 total
>> .xpt bytes: 3717958 total
>>
>> The trend is clearly down, except for the large increase in .xpt size for
>> the most recent measurement -- note the extra digit! It appears that .xpt
>> files used to be binary, and now they are JSON. This might be related to
>> mccr8's recent XPT overhaul (bug 1438688)?
>>
>> The script I use for this is below, for those who are interested.
>>
>> Nick
>>
>>
>> #! /bin/sh
>> #
>> # Measures various XPIDL things in ./ and o64/. (It assumes o64/ is the
>> # objdir.) I put the results in ~/moz/txt/xpidl.txt.
>>
>> if [ ! -d o64 ] ; then
>>     echo "o64/ doesn't exist"
>>     return 1
>> fi
>>
>> # Count number of .idl files, excluding ones in objdirs, testing ones, and
>> # mortar ones.
>> echo -n ".idl files: "
>> find . -name '*.idl' | \
>>     grep -v "64[a-z]*\/dist" | grep -v "testing\/" | grep -v "mortar\/" |
>> \
>>     wc --lines
>>
>> # Count number of lines in those .idl files.
>> echo -n ".idl lines: "
>> find . -name '*.idl' | \
>>     grep -v "64[a-z]*\/dist" | grep -v "testing\/" | grep -v "mortar\/" |
>> \
>>     xargs wc --lines | tail -1
>>
>> # Count number of bytes in .xpt files.
>> cd o64
>> echo -n ".xpt bytes: "
>> find . -name '*.xpt' | xargs wc --bytes | tail -1
>> cd ..
>> _______________________________________________
>> dev-platform mailing list
>> dev-platform@lists.mozilla.org
>> https://lists.mozilla.org/listinfo/dev-platform
>>
>
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