From: "Riedel,Till (TM)" <till.riedel@kit.edu>
To: cygwin@cygwin.com
Subject: Re: man incredibly slow because it scans for share directory in PATH??
Date: Sun, 12 Jun 2016 17:18:00 -0000 [thread overview]
Message-ID: <1c58d754-9720-0780-6f5e-76edc056b480@kit.edu> (raw)
In-Reply-To: <310054882.20160612134916@yandex.ru>
> You have lots of duplicated, obsolete and overlapping paths in your
%PATH%.
> I suggest you start from some homecleaning.
> Not to mention strange ones, like "/".
Thx alot!
I know that my path is messy, but having "/" in the path should not be
all too fatal.
Furthermore, I probably did not set any of those strange paths myself
(this is afterall Windows ;) ).
@Eliot: Good idea to set MANPATH!
>MANPATH=/usr/share/man PATH="/usr/bin:/foo" strace man bar |grep
'foo/share'
returns nothing and fixes the issue!
IMHO at least in Windows/Cygwin creating MANPATH from PATH makes no
sense! (although I now get the idea what was the rationell!) Reasonably
setting MANPATH should IMHO be a default...
BR
Till
Am 6/12/2016 um 12:49 PM schrieb Andrey Repin:
> Greetings, Riedel,Till (TM)!
>
>> I traced down my problem with really slow man page views this:
>
>> {{{
>
> >>PATH="/usr/bin:/foo" strace man bar |grep 'foo/share'
>
>> }}}
>
>> I am getting this:
>
>> {{{
>
>> 13 39756 [main] man 6688 normalize_posix_path: src /foo/share/man
>> 16 39772 [main] man 6688 normalize_posix_path: /foo/share/man =
>> normalize_posix_path (/foo/share/man)
>> 13 39785 [main] man 6688 mount_info::conv_to_win32_path:
>> conv_to_win32_path (/foo/share/man)
>> 12 39810 [main] man 6688 mount_info::conv_to_win32_path: src_path
>> /foo/share/man, dst C:\tools\cygwin\foo\share\man, flags 0x3000A, rc 0
>> 16 39912 [main] man 6688 mount_info::conv_to_win32_path:
>> conv_to_win32_path (/foo/share)
>> 14 39942 [main] man 6688 mount_info::conv_to_win32_path: src_path
>> /foo/share, dst C:\tools\cygwin\foo\share, flags 0x3000A, rc 0
>
>> }}}
>
>> If my PATH is the real one this goes on forever, and generates some
>> problems,like:
>
> You have lots of duplicated, obsolete and overlapping paths in your %PATH%.
> I suggest you start from some homecleaning.
> Not to mention strange ones, like "/".
>
>> {{{
>
> >>time man bar
>> No manual entry for bar
>
>> real 0m23.650s
>> user 0m0.000s
>> sys 0m0.108s
>
>> hanging e.g. on
>
>> 20 2449004 [main] man 8124 mount_info::conv_to_win32_path: src_path
>> //share/man, dst \\share\man, flags 0x4022, rc 0
>
>> }}}
>
>> VS.
>
>> {{{
>
> >>PATH=/usr/bin/ bash -c "time man bar"
>> No manual entry for bar
>
>> real 0m0.082s
>> user 0m0.031s
>> sys 0m0.045s
>
>> }}}
>
>> Any ideas why man does look for "share" in the whole path? Tbh I haven't
>> looked at the man source code. Thx in advance!
>
>
--
KIT- Research University in the Helmholtz Association
Dr.-Ing. Till Riedel
Lab Leader TECO, SDSC-BW/SDIL
Karlsruhe Institute of Technology (KIT)
Institute of Telematics (TM)
Pervasive Computing Systems - Prof. Beigl
Bldg. 07.07., Room 211
Vincenz Prießnitz Str. 1, 76131 Karlsruhe
+49 (0)721 608 41706
www.teco.kit.edu/~riedel
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next prev parent reply other threads:[~2016-06-12 13:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-12 10:50 Riedel,Till (TM)
2016-06-12 14:41 ` Andrey Repin
2016-06-12 17:18 ` Riedel,Till (TM) [this message]
2016-06-12 17:22 ` Achim Gratz
2016-06-13 19:38 ` Linda Walsh
2016-06-14 7:45 ` Achim Gratz
2016-06-14 22:22 ` Linda Walsh
2016-06-15 4:58 ` Achim Gratz
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