Package: python-rrdtool Version: 1.4.7-2 Severity: normal Hello,
I was auditing the rrdtool binding code to check if they could be used in a python thread without locking the entire application via the GIL. Extensions are supposed to release the GIL lock around potentially blocking I/O operations like reading or writing a file, so that other Python threads can run in the meantime. I went through rrdtoolmodule.c and didn't see any use of Py_BEGIN_ALLOW_THREADS or thread-related functions, so it looks like python-rrdtool would keep all concurrent threads of the application blocked during I/O. http://docs.python.org/2/c-api/init.html#threads has more details. This isn't an urgent issue for me personally: we're using pyrrd through the 'external' backend, which uses Popen to invoke rrdtool, and Popen correctly releases the GIL during I/O. However, I felt like I should share what I found during my little code review. Ciao, Enrico -- System Information: Debian Release: wheezy/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 3.2.0-3-amd64 (SMP w/4 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages python-rrdtool depends on: ii libc6 2.13-35 ii librrd4 1.4.7-2 ii python 2.7.3~rc2-1 python-rrdtool recommends no packages. python-rrdtool suggests no packages. -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
