On Sun, Feb 23, 2025 at 03:20:42PM +0100, Kamil Ignacak wrote: > Hi! > > If I read the history correctly, then I see the following changes to code: > > In 2005 a loop reading child process' (dpkg) output was added, together with > a call to usleep(1000) that slows an idle loop down. This was made in > https://salsa.debian.org/apt-team/apt/-/commit/75ef8f1417. > > In 2006 this bug was reported. > > In 2007 a call to select() was added in the loop to postpone read() calls > until more data from the child process is available. This was made in > https://salsa.debian.org/apt-team/apt/-/commit/090c656632. Notice that > select() was later replaced with pselect(). > > Also in 2007 the call to usleep() call in the loop was finally removed. This > was done in https://salsa.debian.org/apt-team/apt/-/commit/7fdafa0f34. > > > I didn't run reporter's test with powertop before 090c656632 or after > 7fdafa0f34 so I don't know if/how much the problem was reduced. It would be > kind of difficult for me to install Debian's version from 2006 to reproduce > the issue in the original apt version.
Closing this accordingly. -- debian developer - deb.li/jak | jak-linux.org - free software dev ubuntu core developer i speak de, en
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