106/107 differences (was "Re: MAX_RESOURCES under 1.0.7")
David T-G
davidtg-gnupg@justpickone.org
Thu May 9 17:12:02 2002
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David, et al --
=2E..and then David Shaw said...
%=20
% On Thu, May 09, 2002 at 09:04:26AM -0500, David T-G wrote:
% >=20
% > Since around version 1.0.2 I have tweaked MAX_RESOURCES with a simple
% > patch
=2E..
% > +#define MAX_RESOURCES 100
=2E..
% > keyrings. When building 1.0.7, I found that not only is ringedit.c gone
% > but MAX_RESOURCES is nowhere to be found in the sources. "Great!", I
=2E..
% > Unfortunately, trying to sign an email message gives me
% >=20
% > gpg: keyblock resource `/home/davidtg/.gnupg/pubring.corporate+group.=
gpg': resource limit
%=20
% [..]
%=20
% I believe (though have not tested) what you are looking for is
% MAX_KEYDB_RESOURCES, set in keydb.c.
Indeed it is, or at least it works for me. With the stock version (set
to 20), I cannot decrypt a message encrypted with a key in one of the
last rings in my list, but when I tack on a zero (set to 200) all is
well.
Interestingly enough, I found very, very minimal differences in the
memory footprint of the two versions:
[zero] [9:57am] ~> /tmp/gpg-107-small --list-keys > /dev/null & ; sleep =
1 ; ps aguxw | egrep ID\|gpg-107 ; sleep 10 ; ps aguxw | egrep ID\|gpg-107
[1] 18936
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
davidtg 18936 58.5 0.1 1880 928 pts/17 R 09:58 0:01 /tmp/gpg-1=
07-small --list-keys
davidtg 18939 0.0 0.0 1140 472 pts/17 S 09:58 0:00 egrep ID|g=
pg-107
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
davidtg 18936 92.1 0.1 1924 980 pts/17 R 09:58 0:11 /tmp/gpg-1=
07-small --list-keys
davidtg 18942 0.0 0.0 1140 472 pts/17 S 09:58 0:00 egrep ID|g=
pg-107
[zero] [9:58am] ~>
[1] Done /tmp/gpg-107-small --list-keys > /de=
v/null
[zero] [9:58am] ~> /tmp/gpg-107-big --list-keys > /dev/null & ; sleep 1 =
; ps aguxw | egrep ID\|gpg-107 ; sleep 10 ; ps aguxw | egrep ID\|gpg-107
[1] 18944
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
davidtg 18944 54.0 0.1 1848 896 pts/17 R 09:58 0:01 /tmp/gpg-1=
07-big --list-keys
davidtg 18955 0.0 0.0 1140 472 pts/17 S 09:58 0:00 egrep ID|g=
pg-107
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
davidtg 18944 93.4 0.1 1940 988 pts/17 R 09:58 0:11 /tmp/gpg-1=
07-big --list-keys
davidtg 18958 0.0 0.0 1140 472 pts/17 S 09:58 0:00 egrep ID|g=
pg-107
[zero] [9:58am] ~>
[1] Done /tmp/gpg-107-big --list-keys > /dev/=
null
[zero] [9:58am] ~>
In fact, both are smaller at the outset than the with a tweaked version
of 106:
[zero] [10:05am] ~> /usr/local/bin/gpg-1.0.6 --list-keys > /dev/null & ;=
sleep 1 ; ps aguxw | egrep ID\|gpg ; sleep 4 ; ps aguxw | egrep ID\|gpg
[1] 19650
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
davidtg 19650 99.9 0.1 1904 904 pts/17 R 10:06 0:01 /usr/local=
/bin/gpg-1.0.6 --list-keys
davidtg 19653 0.0 0.0 1140 472 pts/17 S 10:06 0:00 egrep ID|g=
pg
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
davidtg 19650 99.9 0.1 1916 920 pts/17 R 10:06 0:05 /usr/local=
/bin/gpg-1.0.6 --list-keys
davidtg 19656 0.0 0.0 1140 472 pts/17 S 10:06 0:00 egrep ID|g=
pg
[zero] [10:06am] ~>
[1] Done /usr/local/bin/gpg-1.0.6 --list-keys=
> /dev/null
The other interesting thing is that it takes 107 much longer to process
my keyrings than 106 did:
[zero] [9:59am] ~> time /tmp/gpg-107-big --list-keys > /dev/null
13.820u 0.040s 0:14.27 97.1% 0+0k 0+0io 198pf+0w
[zero] [DING!] ~> time /tmp/gpg-107-small --list-keys > /dev/null
13.760u 0.070s 0:13.98 98.9% 0+0k 0+0io 198pf+0w
[zero] [10:00am] ~> time /usr/local/bin/gpg-1.0.6 --list-keys > /dev/null
5.800u 0.040s 0:06.10 95.7% 0+0k 0+0io 204pf+0w
I've run each version repeatedly to eliminate any disk-read time, and the
results are always within hundredths of a second of each other. Is this
large difference expected?
%=20
% David
%=20
% --=20
% David Shaw | dshaw@jabberwocky.com | WWW http://www.jabberwocky.co=
m/
% +------------------------------------------------------------------------=
---+
% "There are two major products that come out of Berkeley: LSD and UNIX.
% We don't believe this to be a coincidence." - Jeremy S. Anderson
%=20
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% Gnupg-users@gnupg.org
% http://lists.gnupg.org/mailman/listinfo/gnupg-users
Thanks again & HAND
:-D
--=20
David T-G * It's easier to fight for one's principles
(play) davidtg@justpickone.org * than to live up to them. -- fortune cookie
(work) davidtgwork@justpickone.org
http://www.justpickone.org/davidtg/ Shpx gur Pbzzhavpngvbaf Qrprapl Npg!
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