This is the mail archive of the cygwin@cygwin.com mailing list for the Cygwin project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: how to find the amount of RAM




Corinna Vinschen wrote:

> On Sun, Mar 10, 2002 at 08:49:07PM -0800, Stephen Weeks wrote:

> > 

> > Is there a way to find the amount of RAM from within Cygwin?  I

> > tried sysconf(_SC_PHYS_PAGES) but that returns -1.  The only other

> > thing that I saw was a post on this list

> > 

> >       http://sources.redhat.com/ml/cygwin/2001-11/msg00849.html

> > 

> > but that never received an answer.  Any ideas?  Thanks.

> 

> _SC_PHYS_PAGES is only supported on NT/2K/XP.



Thanks for the information.  However, something must be wrong, since I

am on an NT machine and sysconf(_SC_PHYS_PAGES) returns -1.

Fortunately, Chris January's suggestion to use GlobalMemoryStatus

worked fine. 



Anyways, here is a simple test program, the output that I see, and the

output of cygcheck.  Hopefully that will help you find the problem.



--------------------------------------------------------------------------------



#include <stdio.h>

#include <unistd.h>



#define doit(s) \

	fprintf(stderr, #s " = %d\n", sysconf(s));



int main() {

	doit(_SC_ARG_MAX);

	doit(_SC_CHILD_MAX);

	doit(_SC_CLK_TCK);

	doit(_SC_NGROUPS_MAX);

	doit(_SC_OPEN_MAX);

	doit(_SC_JOB_CONTROL);

	doit(_SC_SAVED_IDS);

	doit(_SC_VERSION);

	doit(_SC_PAGESIZE);

	doit(_SC_NPROCESSORS_CONF);

	doit(_SC_NPROCESSORS_ONLN);

	doit(_SC_PHYS_PAGES);

	doit(_SC_AVPHYS_PAGES);

	doit(_SC_MQ_OPEN_MAX);

	doit(_SC_MQ_PRIO_MAX);

	doit(_SC_RTSIG_MAX);

	doit(_SC_SEM_NSEMS_MAX);

	doit(_SC_SEM_VALUE_MAX);

	doit(_SC_SIGQUEUE_MAX);

	doit(_SC_TIMER_MAX);

	doit(_SC_TZNAME_MAX);

	doit(_SC_ASYNCHRONOUS_IO);

	doit(_SC_FSYNC);

	doit(_SC_MAPPED_FILES);

	doit(_SC_MEMLOCK);

	doit(_SC_MEMLOCK_RANGE);

	doit(_SC_MEMORY_PROTECTION);

	doit(_SC_MESSAGE_PASSING);

	doit(_SC_PRIORITIZED_IO);

	doit(_SC_REALTIME_SIGNALS);

	doit(_SC_SEMAPHORES);

	doit(_SC_SHARED_MEMORY_OBJECTS);

	doit(_SC_SYNCHRONIZED_IO);

	doit(_SC_TIMERS);

	doit(_SC_AIO_LISTIO_MAX);

	doit(_SC_AIO_MAX);

	doit(_SC_AIO_PRIO_DELTA_MAX);

	doit(_SC_DELAYTIMER_MAX);

	return 0;

}



--------------------------------------------------------------------------------



_SC_ARG_MAX = 1048576

_SC_CHILD_MAX = 63

_SC_CLK_TCK = 1000

_SC_NGROUPS_MAX = 16

_SC_OPEN_MAX = 256

_SC_JOB_CONTROL = 1

_SC_SAVED_IDS = 0

_SC_VERSION = 199009

_SC_PAGESIZE = 4096

_SC_NPROCESSORS_CONF = -1

_SC_NPROCESSORS_ONLN = -1

_SC_PHYS_PAGES = -1

_SC_AVPHYS_PAGES = -1

_SC_MQ_OPEN_MAX = -1

_SC_MQ_PRIO_MAX = -1

_SC_RTSIG_MAX = -1

_SC_SEM_NSEMS_MAX = -1

_SC_SEM_VALUE_MAX = -1

_SC_SIGQUEUE_MAX = -1

_SC_TIMER_MAX = -1

_SC_TZNAME_MAX = -1

_SC_ASYNCHRONOUS_IO = -1

_SC_FSYNC = -1

_SC_MAPPED_FILES = -1

_SC_MEMLOCK = -1

_SC_MEMLOCK_RANGE = -1

_SC_MEMORY_PROTECTION = -1

_SC_MESSAGE_PASSING = -1

_SC_PRIORITIZED_IO = -1

_SC_REALTIME_SIGNALS = -1

_SC_SEMAPHORES = -1

_SC_SHARED_MEMORY_OBJECTS = -1

_SC_SYNCHRONIZED_IO = -1

_SC_TIMERS = -1

_SC_AIO_LISTIO_MAX = -1

_SC_AIO_MAX = -1

_SC_AIO_PRIO_DELTA_MAX = -1

_SC_DELAYTIMER_MAX = -1



--------------------------------------------------------------------------------



Cygwin Win95/NT Configuration Diagnostics

Current System Time: Mon Mar 11 19:42:08 2002



Windows NT Ver 4.0 Build 1381 Service Pack 6



Path:	z:\cygwin\home\sweeks\bin

	z:\cygwin\sbin

	z:\cygwin\usr\sbin

	z:\cygwin\usr\local\bin

	z:\cygwin\bin

	z:\cygwin\bin

	c:\WINNT\system32

	c:\WINNT



SysDir: C:\WINNT\System32

WinDir: C:\WINNT



CYGWIN = `binmode ntsec tty '

HOME = `z:\cygwin\home\sweeks'

MAKE_MODE = `unix'

PWD = `/cygdrive/c'

USER = `sweeks'



COMPUTERNAME = `WINDOZE'

COMSPEC = `C:\WINNT\system32\cmd.exe'

HOMEDRIVE = `C:'

HOMEPATH = `\'

LOGONSERVER = `\\WINDOZE'

MANPATH = `:/usr/ssl/man'

NUMBER_OF_PROCESSORS = `1'

OLDPWD = `/home/sweeks'

OS2LIBPATH = `C:\WINNT\system32\os2\dll;'

OS = `Windows_NT'

PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'

PROCESSOR_ARCHITECTURE = `x86'

PROCESSOR_IDENTIFIER = `x86 Family 15 Model 1 Stepping 2, GenuineIntel'

PROCESSOR_LEVEL = `15'

PROCESSOR_REVISION = `0102'

PROMPT = `$P$G'

PS1 = `\W% '

SHLVL = `1'

SYSTEMDRIVE = `C:'

SYSTEMROOT = `C:\WINNT'

TEMP = `c:\TEMP'

TERM = `cygwin'

TMP = `c:\TEMP'

USERDOMAIN = `WINDOZE'

USERNAME = `sweeks'

USERPROFILE = `C:\WINNT\Profiles\sweeks'

WINDIR = `C:\WINNT'

_ = `/usr/bin/cygcheck'



HKEY_CURRENT_USER\Software\Cygnus Solutions

HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin

  (default) = 0x00000200

HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2

  (default) = `/cygdrive'

  cygdrive flags = 0x00000022

HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options

HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup

HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0

HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts

HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\00

  (default) = `C:'

  unix = `/'

  fbinary = 0x00000000

  fsilent = 0x00000000

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/

  (default) = `z:\cygwin'

  flags = 0x0000000a

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin

  (default) = `z:/cygwin/bin'

  flags = 0x0000000a

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib

  (default) = `z:/cygwin/lib'

  flags = 0x0000000a

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin B20

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin B20\B20.1

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\00

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\01

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\02

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\03

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\04

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\05

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\06

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\07

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\08

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\09

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0A

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0B

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0C

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0D

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0E

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0F

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\10

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\11

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\12

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\13

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\14

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\15

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\16

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\17

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\18

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\19

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1A

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1B

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1C

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1D

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32\i586-cygwin32

HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32\i586-cygwin32\cygwin-B20.1

  (default) = `z:\cygwin-b20.1\cygwin-b20'

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Cygnus Cygwin B20

  (default) = `C:\WINNT\IsUninst.exe -fz:\cygwin-b20.1\cygwin-b20\Uninst.isu'

  DisplayName = `Cygwin B20'



a:  fd           N/A    N/A                    

c:  hd  NTFS    2043Mb  17% CP CS UN PA FC     

d:  cd           N/A    N/A                    

y:  net NTFS   71228Mb  19%          PA        sweeks

z:  net NTFS   71228Mb  19%          PA        windows



.              /cygdrive  user    binmode,noumount

z:\cygwin      /          system  binmode

z:/cygwin/bin  /usr/bin   system  binmode

z:/cygwin/lib  /usr/lib   system  binmode



Found: z:\cygwin\bin\bash.exe

Found: z:\cygwin\bin\cat.exe

Not Found: cpp (good!)

Found: z:\cygwin\bin\find.exe

Not Found: gcc

Not Found: gdb

Not Found: ld

Found: z:\cygwin\bin\ls.exe

Not Found: make

Found: z:\cygwin\bin\sh.exe



  751k 2002/03/09 z:\cygwin\usr\sbin\cygwin1.dll - os=4.0 img=1.0 sys=4.0

                  "cygwin1.dll" v0.0 ts=2002/2/25 8:14

    Cygwin DLL version info:

        DLL version: 1.3.10

        DLL epoch: 19

        DLL bad signal mask: 19005

        DLL old termios: 5

        DLL malloc env: 28

        API major: 0

        API minor: 51

        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: Mon Feb 25 11:14:34 EST 2002

        Shared id: cygwin1S3



   19k 2002/02/21 z:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0

                  "cyggdbm.dll" v0.0 ts=2002/2/19 19:05

   45k 2002/02/21 z:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0

                  "cygform5.dll" v0.0 ts=2001/4/24 22:28

   26k 2002/02/21 z:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0

                  "cygmenu5.dll" v0.0 ts=2001/4/24 22:27

  156k 2002/02/21 z:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0

                  "cygncurses++5.dll" v0.0 ts=2001/4/24 22:29

  226k 2002/02/21 z:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0

                  "cygncurses5.dll" v0.0 ts=2001/4/24 22:17

   15k 2002/02/21 z:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0

                  "cygpanel5.dll" v0.0 ts=2001/4/24 22:27

   35k 2002/02/21 z:\cygwin\bin\cygform6.dll - os=4.0 img=1.0 sys=4.0

                  "cygform6.dll" v0.0 ts=2002/1/8 22:03

   20k 2002/02/21 z:\cygwin\bin\cygmenu6.dll - os=4.0 img=1.0 sys=4.0

                  "cygmenu6.dll" v0.0 ts=2002/1/8 22:03

  175k 2002/02/21 z:\cygwin\bin\cygncurses++6.dll - os=4.0 img=1.0 sys=4.0

                  "cygncurses++6.dll" v0.0 ts=2002/1/8 22:03

  202k 2002/02/21 z:\cygwin\bin\cygncurses6.dll - os=4.0 img=1.0 sys=4.0

                  "cygncurses6.dll" v0.0 ts=2002/1/8 22:03

   12k 2002/02/21 z:\cygwin\bin\cygpanel6.dll - os=4.0 img=1.0 sys=4.0

                  "cygpanel6.dll" v0.0 ts=2002/1/8 22:03

   17k 2002/02/21 z:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0

                  "cyghistory4.dll" v0.0 ts=2001/1/6 20:34

  108k 2002/02/21 z:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0

                  "cygreadline4.dll" v0.0 ts=2001/1/6 20:34

   20k 2002/02/21 z:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0

                  "cyghistory5.dll" v0.0 ts=2002/1/12 17:27

  121k 2002/02/21 z:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0

                  "cygreadline5.dll" v0.0 ts=2002/1/12 17:27

   50k 2002/02/21 z:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0

                  "cygz.dll" v0.0 ts=2002/1/20 11:41

   21k 2002/02/21 z:\cygwin\bin\cygintl.dll - os=4.0 img=1.0 sys=4.0

                  "cygintl.dll" v0.0 ts=2001/6/20 10:09

   22k 2002/03/08 z:\cygwin\bin\cygintl-1.dll - os=4.0 img=1.0 sys=4.0

                  "cygintl-1.dll" v0.0 ts=2001/12/13 1:28

   40k 2002/03/08 z:\cygwin\bin\cygpcre.dll - os=4.0 img=1.0 sys=4.0

                  "cygpcre.dll" v0.0 ts=2001/11/21 14:15

   39k 2002/03/08 z:\cygwin\bin\cygpcreposix.dll - os=4.0 img=1.0 sys=4.0

                  "cygpcreposix.dll" v0.0 ts=2001/11/21 14:15

  621k 2002/03/09 z:\cygwin\bin\cygcrypto.dll - os=4.0 img=1.0 sys=4.0

                  "cygcrypto.dll" v0.0 ts=2002/1/16 1:54

  156k 2002/03/09 z:\cygwin\bin\cygssl.dll - os=4.0 img=1.0 sys=4.0

                  "cygssl.dll" v0.0 ts=2002/1/16 1:54

  751k 2002/03/09 z:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0

                  "cygwin1.dll" v0.0 ts=2002/2/25 8:14

    Cygwin DLL version info:

        DLL version: 1.3.10

        DLL epoch: 19

        DLL bad signal mask: 19005

        DLL old termios: 5

        DLL malloc env: 28

        API major: 0

        API minor: 51

        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: Mon Feb 25 11:14:34 EST 2002

        Shared id: cygwin1S3





Cygwin Package Information

Last downloaded files to: Z:\cygwin-packages

Last downloaded files from: http://planetmirror.com/pub/sourceware/cygwin



Package             Version             

ash                 20020131-1          

bash                2.05a-3             

cygrunsrv           0.95-1              

cygwin              1.3.10-1            

cygwin-src          1.3.10-1            

diff                0.0                 

fileutils           4.1-1               

findutils           4.1                 

gawk                3.0.4-1             

gdbm                1.8.0-4             

grep                2.5g                

groff               1.17.2-1            

gzip                1.3.2-1             

inetutils           1.3.2-17            

less                358-3               

libintl             0.10.38-3           

libintl1            0.10.40-1           

libncurses5         5.2-1               

libncurses6         5.2-8               

libreadline4        4.1-2               

libreadline5        4.2a-1              

login               1.4-3               

man                 1.5g-2              

ncurses             5.2-8               

openssh             3.1p1-1             

openssl             0.9.6c-3            

pcre                3.7-1               

readline            4.2a-1              

sed                 3.02-1              

sh-utils            2.0-2               

tar                 1.13.19-1           

termcap             20010825-1          

terminfo            5.2-1               

textutils           2.0.21-1            

w32api              1.2-1               

which               1.5-1               

zlib                1.1.3-7             



Use -h to see help about each section

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]