Re: memory usage on x86

FYI: On Win, the baseline memory usage seems to have dropped between 5.8.9 & 5.10.1:

c:\test>\perl32\bin\perl -mversion -e"print $version::VERSION; system 
+qq[tasklist /fi \"pid eq $$\"]"
0.76
Image Name                     PID Session Name        Session#    Mem
+ Usage
========================= ======== ================ =========== ======
+======
perl.exe                     26008 Console                    1      7
+,712 K

c:\test>\perl64\bin\perl -mversion -E"say $version::VERSION; system qq
+[tasklist /fi \"pid eq $$\"]"
0.78

Image Name                     PID Session Name        Session#    Mem
+ Usage
========================= ======== ================ =========== ======
+======
perl.exe                     42052 Console                    1      6
+,524 K
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Are you sure your perls are built with similar build options?

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

Comment on Re: memory usage on x86_64 Download Code

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Re^2: memory usage on x86_64 by powerman (Friar) on Feb 15, 2012 at 21:19 UTC
Yes, I'm sure. It's Gentoo - I've compiled perl from source with exactly same options and environment libraries on both systems. Only difference is kernel version because I didn't upgraded kernel on one of systems yet (will do this tomorrow), but I don't believe kernel version can make any difference here. So, both perls are same, and only difference is 32/64-bit system.	[reply]
Re^3: memory usage on x86_64 by BrowserUk (Patriarch) on Feb 15, 2012 at 21:46 UTC
The only thing that came to mind that might account for the difference was if something was being statically rather than dynamically linked. Could that still apply to one of the indirect components? With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. The start of some sanity?	[reply]
Re^4: memory usage on x86_64 by powerman (Friar) on Feb 16, 2012 at 08:10 UTC
No, I don't think so. Library sizes doesn't differ that much. x86 # ldd /usr/bin/perl5.12.4 linux-gate.so.1 => (0xa07c8000) libperl.so.5.12 => /usr/lib/libperl.so.5.12 (0xa067f000) libc.so.6 => /lib/libc.so.6 (0xa051f000) libdl.so.2 => /lib/libdl.so.2 (0xa051b000) libm.so.6 => /lib/libm.so.6 (0xa04f5000) libcrypt.so.1 => /lib/libcrypt.so.1 (0xa04c3000) /lib/ld-linux.so.2 (0xa07c9000) x86 # ls -l /usr/lib/libperl.so.5.12.4 /lib/lib{c,dl,m,crypt}-2.13.so +/lib/ld-2.13.so -rwxr-xr-x 1 root root 117748 Jan 22 07:24 /lib/ld-2.13.so -rwxr-xr-x 1 root root 1429836 Jan 22 07:24 /lib/libc-2.13.so -rwxr-xr-x 1 root root 34012 Jan 22 07:24 /lib/libcrypt-2.13.so -rwxr-xr-x 1 root root 9488 Jan 22 07:24 /lib/libdl-2.13.so -rwxr-xr-x 1 root root 149176 Jan 22 07:24 /lib/libm-2.13.so -rwxr-xr-x 1 root root 1321752 Dec 13 23:41 /usr/lib/libperl.so.5.12.4 x86_64 # ldd /usr/bin/perl5.12.4 linux-vdso.so.1 => (0x00007e8ee2651000) libperl.so.5.12 => /usr/lib64/libperl.so.5.12 (0x00007e8ee20c2 +000) libc.so.6 => /lib64/libc.so.6 (0x00007e8ee1d36000) libdl.so.2 => /lib64/libdl.so.2 (0x00007e8ee1b32000) libm.so.6 => /lib64/libm.so.6 (0x00007e8ee18b4000) libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007e8ee167d000) /lib64/ld-linux-x86-64.so.2 (0x00007e8ee2433000) x86_64 # ls -l /usr/lib64/libperl.so.5.12.4 /lib64/lib{c,dl,m,crypt}-2 +.13.so /lib64/ld-2.13.so -rwxr-xr-x 1 root root 136616 Feb 12 16:38 /lib64/ld-2.13.so -rwxr-xr-x 1 root root 1608776 Feb 12 16:38 /lib64/libc-2.13.so -rwxr-xr-x 1 root root 34720 Feb 12 16:38 /lib64/libcrypt-2.13.so -rwxr-xr-x 1 root root 14320 Feb 12 16:38 /lib64/libdl-2.13.so -rwxr-xr-x 1 root root 514000 Feb 12 16:38 /lib64/libm-2.13.so -rwxr-xr-x 1 root root 1507552 Feb 12 16:52 /usr/lib64/libperl.so.5.12 +.4 [download]	[reply] [d/l]