Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com X-Originating-IP: [129.42.208.186] From: "Thomas Chadwick" To: cygwin AT cygwin DOT com Subject: Slowness when setting PS1 variable??? Date: Wed, 08 Jan 2003 09:26:36 -0500 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 08 Jan 2003 14:26:36.0906 (UTC) FILETIME=[F3A1B4A0:01C2B721] I recently ran Cygwin setup and installed lots of updates. However, ever since, I noticed that starting a new shell takes a relatively long time (we're talking 10 seconds or so between typing "bash" and getting a prompt - it might not sound like a lot, but try running make on something of moderate size and see how many times it starts a new shell in the process!!). I did some debugging, and the slowness seems to only occur when executing my .bashrc file. More specifically, it seems to block when it gets to this entry: # Set the prompt export PS1=" `whoami`@`uname -n`:\$PWD $ " If I take out the `whoami` and `uname -n` parts, the slowness goes away and bash starts up almost instantaneously. However, what baffles me is if I run either of these commands at the command-line (immediately after starting a shell), they return a result immediately. I guess my question is: why do `whoami` and `uname -n` take so stinking long to run when inside the PS1 assignment??? Below is the output of cygcheck -s... Cygwin Win95/NT Configuration Diagnostics Current System Time: Wed Jan 08 09:04:38 2003 Windows 2000 Professional Ver 5.0 Build 2195 Service Pack 3 Path: . C:\cygwin\home\tchadwic\bin C:\cygwin\usr\local\bin c:\WINNT\system32 c:\WINNT c:\WINNT\System32\Wbem c:\Utilities c:\Program Files\IBM\Trace Facility c:\Program Files\Personal Communications c:\Notes c:\PROGRA~1\COMMON~1\XCPCSync\TRANSL~1\LtNts4 C:\cygwin\bin C:\cygwin\usr\X11R6\bin SysDir: C:\WINNT\System32 WinDir: C:\WINNT HOME = `C:\cygwin\home\tchadwic' PWD = `/home/tchadwic' Use `-r' to scan registry c: hd NTFS 14998Mb 65% CP CS UN PA FC C_DRIVE d: hd NTFS 509Mb 98% CP CS UN PA SWAP e: cd N/A N/A s: net NTFS 70312Mb 0% CP CS PA tchadwic . /cygdrive user binmode,cygdrive C:/cygwin / system binmode C:/cygwin/bin /usr/bin system binmode C:/cygwin/lib /usr/lib system binmode C:\cygwin\usr\X11R6\lib\X11\fonts /usr/X11R6/lib/X11/fonts system binmode . /cygdrive user binmode,cygdrive Found: C:\cygwin\bin\bash.exe Found: C:\cygwin\bin\cat.exe Found: C:\cygwin\bin\cpp.exe Found: C:\cygwin\bin\find.exe Found: C:\cygwin\bin\gcc.exe Found: C:\cygwin\bin\gdb.exe Found: C:\cygwin\bin\ld.exe Found: C:\cygwin\bin\ls.exe Found: C:\cygwin\bin\make.exe Found: C:\cygwin\bin\sh.exe 58k 2002/05/07 C:\cygwin\bin\cygbz2-1.dll 644k 2002/12/08 C:\cygwin\bin\cygcrypto.dll 380k 2002/07/24 C:\cygwin\bin\cygdb-3.1.dll 487k 2002/07/24 C:\cygwin\bin\cygdb_cxx-3.1.dll 45k 2001/04/25 C:\cygwin\bin\cygform5.dll 35k 2002/01/09 C:\cygwin\bin\cygform6.dll 19k 2002/02/20 C:\cygwin\bin\cyggdbm.dll 490k 2002/09/21 C:\cygwin\bin\cygguile-12.dll 488k 2002/07/18 C:\cygwin\bin\cygguile-14.dll 63k 2002/07/18 C:\cygwin\bin\cygguile-srfi-srfi-13-14-1.dll 63k 2002/09/21 C:\cygwin\bin\cygguile-srfi-srfi-13-14-v-1-1.dll 24k 2002/07/18 C:\cygwin\bin\cygguile-srfi-srfi-4-1.dll 24k 2002/09/21 C:\cygwin\bin\cygguile-srfi-srfi-4-v-1-1.dll 14k 2002/07/18 C:\cygwin\bin\cygguilereadline-14.dll 14k 2002/09/21 C:\cygwin\bin\cygguilereadline-v-12-12.dll 17k 2001/06/28 C:\cygwin\bin\cyghistory4.dll 20k 2002/10/10 C:\cygwin\bin\cyghistory5.dll 929k 2002/06/24 C:\cygwin\bin\cygiconv-2.dll 22k 2001/12/13 C:\cygwin\bin\cygintl-1.dll 28k 2002/09/20 C:\cygwin\bin\cygintl-2.dll 21k 2001/06/20 C:\cygwin\bin\cygintl.dll 45k 2002/02/08 C:\cygwin\bin\cygjbig1.dll 119k 2002/02/09 C:\cygwin\bin\cygjpeg6b.dll 59k 2002/09/20 C:\cygwin\bin\cygkpathsea-3-3-7.dll 32k 2002/12/27 C:\cygwin\bin\cygltdl-3.dll 26k 2001/04/25 C:\cygwin\bin\cygmenu5.dll 20k 2002/01/09 C:\cygwin\bin\cygmenu6.dll 156k 2001/04/25 C:\cygwin\bin\cygncurses++5.dll 175k 2002/01/09 C:\cygwin\bin\cygncurses++6.dll 226k 2001/04/25 C:\cygwin\bin\cygncurses5.dll 202k 2002/01/09 C:\cygwin\bin\cygncurses6.dll 15k 2001/04/25 C:\cygwin\bin\cygpanel5.dll 12k 2002/01/09 C:\cygwin\bin\cygpanel6.dll 40k 2001/11/21 C:\cygwin\bin\cygpcre.dll 39k 2001/11/21 C:\cygwin\bin\cygpcreposix.dll 175k 2002/07/22 C:\cygwin\bin\cygpng10.dll 179k 2002/07/22 C:\cygwin\bin\cygpng12.dll 170k 2002/01/21 C:\cygwin\bin\cygpng2.dll 22k 2002/06/09 C:\cygwin\bin\cygpopt-0.dll 108k 2001/06/28 C:\cygwin\bin\cygreadline4.dll 127k 2002/10/10 C:\cygwin\bin\cygreadline5.dll 66k 2001/11/20 C:\cygwin\bin\cygregex.dll 165k 2002/12/08 C:\cygwin\bin\cygssl.dll 550k 2002/12/19 C:\cygwin\bin\cygtcl83.dll 12k 2002/12/19 C:\cygwin\bin\cygtclpip83.dll 253k 2002/02/10 C:\cygwin\bin\cygtiff3.dll 217k 2002/12/19 C:\cygwin\bin\cygtix4183.dll 830k 2002/12/19 C:\cygwin\bin\cygtk83.dll 41k 2002/01/20 C:\cygwin\bin\cygXpm-noX4.dll 46k 2002/01/20 C:\cygwin\bin\cygXpm-X4.dll 50k 2002/03/12 C:\cygwin\bin\cygz.dll 880k 2002/12/25 C:\cygwin\bin\cygwin1.dll Cygwin DLL version info: DLL version: 1.3.18 DLL epoch: 19 DLL bad signal mask: 19005 DLL old termios: 5 DLL malloc env: 28 API major: 0 API minor: 69 Shared data: 3 DLL identifier: cygwin1 Mount registry: 2 Cygnus registry name: Cygnus Solutions Cygwin registry name: Cygwin Program options name: Program Options Cygwin mount registry name: mounts v2 Cygdrive flags: cygdrive flags Cygdrive prefix: cygdrive prefix Cygdrive default prefix: Build date: Wed Dec 25 15:37:50 EST 2002 Shared id: cygwin1S3 41k 2002/05/14 C:\cygwin\usr\X11R6\bin\cygPropList-0.dll Cygwin Package Information Package Version WindowMaker 0.80.0-2 XFree86-base 4.2.0-1 XFree86-bin 4.2.0-2 XFree86-etc 4.2.0-1 XFree86-f100 4.2.0-2 XFree86-fenc 4.2.0-2 XFree86-fnts 4.2.0-2 XFree86-fscl 4.2.0-2 XFree86-lib 4.2.0-3 XFree86-man 4.2.0-1 XFree86-prog 4.2.0-1 XFree86-ps 4.2.0-1 XFree86-startup-scripts4.2.0-3 XFree86-xserv 4.2.0-15 _update-info-dir 00113-1 ash 20020731-1 autoconf 2.54-1 autoconf-devel 2.57-1 autoconf-stable 2.13-4 automake 1.7.1-1 automake-devel 1.7.2-1 automake-stable 1.4p5-5 base-files 1.1-1 base-passwd 1.0-1 bash 2.05b-8 binutils 20021117-1 bison 1.75-1 byacc 1.9-1 bzip2 1.0.2-2 clear 1.0-1 cpio 2.5-1 cron 3.0.1-7 crypt 1.0-1 ctags 5.2-1 cvs 1.11.0-1 cygrunsrv 0.95-1 cygutils 1.1.3-1 cygwin 1.3.18-1 cygwin-doc 1.2-1 dejagnu 20021217-1 diff 1.0-1 diffutils 2.8.1-1 ed 0.2-1 emacs 21.2-11 emacs-X11 21.2-11 expect 20021218-1 file 3.37-1 fileutils 4.1-1 findutils 4.1.7-4 flex 2.5.4-2 gawk 3.1.1-5 gcc 3.2-3 gcc-mingw 20020817-4 gdb 20021218-1 gdbm 1.8.0-4 gettext 0.11.5-1 ghostscript 7.05-2 ghostscript-base 7.05-2 ghostscript-x11 7.05-2 gnupg 1.2.1-1 gperf 2.7.2-1 grep 2.5-1 groff 1.18.1-2 gzip 1.3.3-4 inetutils 1.3.2-19 irc 20010101-1 jbigkit 1.2-6 jpeg 6b-7 less 378-1 libPropList 0.10.1-3 libbz2_1 1.0.2-2 libdb3.1 3.1.17-2 libguile12 1.6.0-1 libguile14 1.5.6-5 libiconv2 1.8-2 libintl 0.10.38-3 libintl1 0.10.40-1 libintl2 0.11.5-1 libkpathsea3 20020911-1 libltdl3 20021227-1 libncurses5 5.2-1 libncurses6 5.2-8 libpng 1.2.4-2 libpng10 1.0.14-2 libpng12 1.2.4-2 libpng2 1.0.12-1 libpopt0 1.6.4-4 libreadline4 4.1-2 libreadline5 4.3-2 lilypond 1.6.5-1 lilypond-doc 1.6.5-1 links 0.96-1 login 1.7-1 lynx 2.8.4-4 m4 1.4-1 make 3.79.1-7 man 1.5j-1 mingw 20010917-1 mingw-runtime 2.3-1 mktemp 1.4-1 mt 2.0.1-1 mutt 1.4-1 nano 1.1.10-1 ncftp 3.1.4-1 ncurses 5.2-8 newlib-man 20020801 opengl 1.1.0-6 openssh 3.5p1-2 openssl 0.9.6h-1 patch 2.5.8-2 pcre 3.7-1 perl 5.6.1-2 popt 1.6.4-4 postgresql 7.3-1 python 2.2.2-4 readline 4.3-2 regex 4.4-2 rsync 2.5.5-2 rxvt 2.7.9-4 sed 4.0.1-1 sh-utils 2.0-3 shutdown 1.2-2 squid 2.4.STABLE7-1 ssmtp 2.38.7-3 tar 1.13.25-1 tcltk 20021218-1 tcsh 6.11.00-5 termcap 20020930-1 terminfo 5.2-3 tetex-beta 20020911-1 tetex-bin 20020911-1 tetex-tiny 20020911-1 tetex-x11 20020911-1 texinfo 4.2-4 textutils 2.0.21-1 tidy 021202-1 tiff 3.5.7-1 time 1.7-1 unzip 5.50-1 vim 6.1-2 w32api 2.1-1 wget 1.8.2-2 which 1.5-1 x2x 1.27-2 xpm-nox 4.2.0-1 zip 2.3-2 zlib 1.1.4-1 Use -h to see help about each section _________________________________________________________________ Protect your PC - get McAfee.com VirusScan Online http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/