== yakko:/etc/init.d# cat /tmp/cmds --unpack /var/cache/apt/archives/jx-lib_1.5.3-3_i386.deb --purge jx-lib --unpack /var/cache/apt/archives/jx-lib_1.5.3-3_i386.deb --configure jx-lib --purge jx-lib yakko:/etc/init.d# time dpkg --command-pipe 4 4</tmp/cmds Selecting previously deselected package jx-lib. (Reading database ... 34600 files and directories currently installed.) Unpacking jx-lib (from .../jx-lib_1.5.3-3_i386.deb) ... Removing jx-lib ... Purging configuration files for jx-lib ... Selecting previously deselected package jx-lib. Setting up jx-lib (1.5.3-3) ...
Removing jx-lib ... Purging configuration files for jx-lib ... real 0m6.924s yakko:/etc/init.d# time (cat /tmp/cmds|while read cmd;do dpkg $cmd;done) (Reading database ... dpkg: serious warning: files list file for package `jx-lib' missing, assuming package has no files currently installed. 34600 files and directories currently installed.) Preparing to replace jx-lib 1.5.3-3 (using .../jx-lib_1.5.3-3_i386.deb) ... Unpacking replacement jx-lib ... (Reading database ... 34632 files and directories currently installed.) Removing jx-lib ... Purging configuration files for jx-lib ... Selecting previously deselected package jx-lib. (Reading database ... 34600 files and directories currently installed.) Unpacking jx-lib (from .../jx-lib_1.5.3-3_i386.deb) ... Setting up jx-lib (1.5.3-3) ... (Reading database ... 34632 files and directories currently installed.) Removing jx-lib ... Purging configuration files for jx-lib ... real 0m8.379s == This is on my dual celeron 333. On slower machines it will most likely be faster, as reading the database really hurts on low-end machines(both cpu and memory). Note: the 2nd method reads the database several times, which it the main slowdown for dpkg on low-end machines. Still left to do is a --status-pipe. It is believed, that once this option is done, then dpkg will properly function in daemon like mode. ----BEGIN GEEK CODE BLOCK---- Version: 3.12 GCS d- s: a-- c+++ UL++++ P+ L++++ !E W+ M o+ K- W--- !O M- !V PS-- PE++ Y+ PGP++ t* 5++ X+ tv b+ D++ G e h*! !r z? -----END GEEK CODE BLOCK----- ----BEGIN PGP INFO---- Adam Heath <[EMAIL PROTECTED]> Finger Print | KeyID 67 01 42 93 CA 37 FB 1E 63 C9 80 1D 08 CF 84 0A | DE656B05 PGP AD46 C888 F587 F8A3 A6DA 3261 8A2C 7DC2 8BD4 A489 | 8BD4A489 GPG -----END PGP INFO-----
