Re: Performance Option For CEDET

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Hi Again,

After submitting I noticed a typo I made.
Please find an updated version of the patch attached.

Kind regards,

Edward Steere

--Apple-Mail=_AB4CE1A9-22DF-4055-99B5-D76D80B818E5
Content-Disposition: attachment;
	filename=0003-Global-switch-for-file-truename.patch
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	name="0003-Global-switch-for-file-truename.patch"
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=46rom=206e3057eff11dcfd764359c965957747a78038ca3=20Mon=20Sep=2017=20=
00:00:00=202001=0AFrom:=20Edward=20Steere=20<[email protected]>=0A=
Date:=20Sat,=2026=20Mar=202016=2015:11:10=20+0200=0ASubject:=20[PATCH=20=
3/4]=20Global=20switch=20for=20file-truename.=0A=0AI've=20found=20via=20=
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=20=0A=20(eval-when-compile=0A=20=20=20(require=20'semantic/find))=0A@@=20=
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=20=20=20=20db))=0A=20=0A=20(defmethod=20=
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If=20the=20table=20for=20FILE=20does=20not=20exist,=20create=20one."=0A=20=
(defun=20semanticdb-get-database=20(filename)=0A=20=20=20"Get=20a=20=
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one."=0A-=20=20(semanticdb-create-database=20=
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(ede-file-truename=20filename)))=0A=20=0A=20(defun=20=
semanticdb-directory-loaded-p=20(path)=0A=20=20=20"Return=20the=20=
project=20belonging=20to=20PATH=20if=20it=20was=20already=20loaded."=0A=
@@=20-443,7=20+444,7=20@@=20If=20FILENAME=20exists=20in=20the=20database=20=
already,=20return=20that.=0A=20If=20there=20is=20no=20database=20for=20=
the=20table=20to=20live=20in,=20create=20one."=0A=20=20=20(let=20((cdb=20=
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(file-truename=20filename)))=0A+=09(dd=20(file-name-directory=20=
(ede-file-truename=20filename)))=0A=20=09)=0A=20=20=20=20=20;;=20Allow=20=
a=20database=20override=20function=0A=20=20=20=20=20(setq=20cdb=20=
(semanticdb-create-database=20semanticdb-new-database-class=0A@@=20=
-848,17=20+849,17=20@@=20Always=20append=20=
`semanticdb-project-system-databases'=20if=0A=20=20=20(let=20((root=20=
nil)=09=09=09;=20found=20root=20directory=0A=20=09(dbs=20nil)=09=09=09;=20=
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default-directory)))=0A+=09(dir=20(ede-file-truename=20(or=20dir=20=
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based=20on=20project=20functions.=0A=20=20=20=20=20(setq=20root=20=
(run-hook-with-args-until-success=0A=20=09=09=
'semanticdb-project-root-functions=0A=20=09=09dir))=0A=20=20=20=20=20(if=20=
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roots=20based=20on=20strings=0A=20=20=20=20=20=20=20(while=20roots=0A-=09=
(let=20((r=20(file-truename=20(car=20roots))))=0A+=09(let=20((r=20=
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database.=0A=20=20=20=20=20=20=20;;=20Once=20we=20have=20a=20table,=20=
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;;=20this=20line=20will=20make=20a=20new=20one=20if=20needed.=0A@@=20=
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of=20new=20database=20objects."=0A=20=09=20=20=20=20=
(semanticdb-file-table-object-put-hash=20file=20tab)=0A=20=09=20=20=20=20=
(when=20(not=20(string=3D=20fullfile=20file))=0A=20=09=20=20=20=20=20=20=
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))=0A+=20=20=20=20=20=20=20=20=20=20=20=20=20=20))=0A=20=09=20=20))=0A=20=
=0A=20=20=20=20=20=20=20(cond=0A@@=20-970,7=20+971,7=20@@=20DONTLOAD=20=
does=20not=20affect=20the=20creation=20of=20new=20database=20objects."=0A=
=20=09(when=20(and=20(not=20tab)=20(not=20fullfile))=0A=20=09=20=20;;=20=
This=20case=20is=20if=20a=20'nil=20is=20erroneously=20put=20into=20the=20=
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=20(setq=20fullfile=20(file-truename=20file))=0A+=09=20=20(setq=20=
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If=20we=20have=20a=20table,=20but=20no=20fullfile,=20that's=20ok.=20=20=
Let's=20get=20the=20filename=0A@@=20-992,7=20+993,7=20@@=20DONTLOAD=20=
does=20not=20affect=20the=20creation=20of=20new=20database=20objects."=0A=
=20=09;;=20One=20person=20found=20this.=20=20Is=20it=20a=20file=20that=20=
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were=20asked=20not=20to=20load=20the=20file=20in=20and=20parse=20it.=0A=20=
=09;;=20Instead=20just=20create=20a=20database=20table=20with=20no=20=
tags=0Adiff=20--git=20a/lisp/cedet/semantic/decorate/include.el=20=
b/lisp/cedet/semantic/decorate/include.el=0Aindex=204c58111..23c67fd=20=
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(require=20'semantic/db)=0A=20(require=20'semantic/db-ref)=0A=20(require=20=
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=20=20(require=20'semantic/find))=0A@@=20-708,7=20+709,7=20@@=20Argument=20=
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a/tests/cedet/ede/compdb-utest.el=0A+++=20=
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(require=20'rx)=0A=20(require=20'inversion)=0A=20(require=20'ede/compdb)=0A=
+(require=20'ede)=0A=20=0A=20;;=20Need=20to=20have=20EDE=20and=20=
semantic=20automatically=20enabled=20for=20new=20buffers=0A=
-;(semantic-mode=20t)=0A+=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
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test=20with=20.ipp=20files=20-=20map=20to=20c++=20mode=20so=20they=20can=20=
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list.=0A=20=0A=20=20=20=20=20=20=20;;=20Basic=20sanity=20checks=20on=20=
the=20project=20itself=0A=20=20=20=20=20=20=20(should=20(eq=20proj=20=
(ede-directory-get-open-project=20testdir)))=0A-=20=20=20=20=20=20=
(should=20(gethash=20(file-truename=20maincpp)=20(oref=20proj=20=
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=20=20(with-current-buffer=20(get-file-buffer=20maincpp)=0A=20=20=20=20=20=
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=20=20=20=20=20=20=20=20(while=20testbufs=0A--=20=0A2.5.4=20(Apple=20=
Git-61)=0A=0A=

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Content-Type: text/plain;
	charset=utf-8



> On 26 Mar 2016, at 4:49 PM, Edward Steere <[email protected]> =
wrote:
>=20
> Hi All,
>=20
> This is patch 3/4.
>=20
> I found that the performance of semantic for navigating between =
project files
> using ia fast jump left a lot to be desired in large java projects. =
The major=20
> culprit appears to be file-truename. Both for the amount of memory it
> allocates (and therefore automatic GC time it triggers)  and for the =
time it
> takes to check for symlinks in the file system etc.
>=20
> This patch adds a global switch (`ede-ignore-symlinks=E2=80=99) across =
CEDET
> which will use `expand-filename=E2=80=99 when the switch is non-nil. =
An alternative to
> this might be to add it to the base project object as a switch so that =
one can control
> the behaviour on a per-project basis. I=E2=80=99d be happy to =
implement the later or
> a combination depending on what is decided.
>=20
> Kind regards,
>=20
> Edward Steere
> <0003-Global-switch-for-file-truename.patch>


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