Bug#682902: mime-support: Performance issue. Unnecessery resource consumption from 'see' utility...
Oleksandr Gavenko writes: > > I strongly suggest remove 'system' call to avoid 'sh -c' execution. Instead > use 'exec' without 'fork' to free CPU and memory from '/usr/bin/perl > /usr/bin/see'. You mean not run /bin/sh but instead spawn the command directly? RFC1524 under "Semantics of executable commands" says it's supposed to be /bin/sh, ... it is specified that the command line be intended as input to the Bourne shell, i.e., that it is implicitly preceded by "/bin/sh -c " on the command line.) It might be possible to sometimes notice that the shell is not required for a particular command form. That might even be the majority of commands. But my inclination would be not to worry about the extra. Alternatively, if you meant that run-mailcap itself could exec the /bin/sh, thereby not having a running perl waiting -- then maybe that could be done if run-mailcap hasn't made any temporary files. You'd lose the warning message printed if the command fails, but maybe there's a command-not-found message from the shell anyway in that case. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
Bug#682902: mime-support: Performance issue. Unnecessery resource consumption from 'see' utility...
Package: mime-support Version: 3.52-1 Severity: normal I found such picture in 'htop' utility: 28077 user 20 0 122M 2584 1736 S 0.0 0.1 0:00.04 ├─ /usr/bin/perl /usr/bin/see /home/user/net/васильева_007.jpg 28081 user 20 0 4164 584 492 S 0.0 0.0 0:00.00 │ └─ sh -c gthumb '/tmp/filemVzMYj' 28082 user 20 0 623M 92168 18772 S 0.0 2.3 0:02.35 │ └─ gthumb /tmp/filemVzMYj I strongly suggest remove 'system' call to avoid 'sh -c' execution. Instead use 'exec' without 'fork' to free CPU and memory from '/usr/bin/perl /usr/bin/see'. I don't look to another utility from mime-support, but think that they also have such issue... -- System Information: Debian Release: wheezy/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.2.0-3-amd64 (SMP w/2 CPU cores) Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash -- Best regards! -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
