580 karma · joined November 16, 2011
export PYTHONDONTWRITEBYTECODE=1
may be more convenient than passing -B.Possibly you'd have to hack up a netfilter rule.
It implements the “look at the time you've had a queue above threshold” bit.
Patches for the CeroWrt home router are being tested: https://gettys.wordpress.com/2012/05/08/fundamental-progress... Via https://lwn.net/Articles/496250/
To enable it on Linux:
sudo sysctl net.ipv4.tcp_ecn=1
Across reboots: echo net.ipv4.tcp_ecn=1 |sudo tee /etc/sysctl.d/10-ecn.conf
Other OSes: https://en.wikipedia.org/wiki/Explicit_Congestion_Notificati...The boundary between things we know to be possible and impossible is in fact stronger now, because (for most of the events in this timeline) we're now basing this knowledge on the laws of physics.
Sidebar: future events that derive solely from thermodynamics don't really have a get-out-of-jail card; deflecting some of the others would require us to meaningfully harness much larger amounts of energy at the scholar system scale, bootstrapping that sort of thing would require multiple jumps of a few orders of magnitude which might be solvable as an engineering problem, but is economically dicey when we're already squandering the fossil fuel dividend on our current, unsustainable needs. That is to say, please solve politics or economics before dreaming of magitech.
Edit: except the ureadahead packfile only points to the blocks and files, it does not provide a way to inline them. So e4rat is almost certainly faster. It's a shame it is ext4 specific.
Apparently Scott James Remnant, the ureadahead developer, considered feeding the collected info to a defragmenter: http://ubuntuforums.org/showthread.php?t=1434502 ; this would be nice, as it means a single package is responsible for the feature, and filesystems perform to the best of their ability whether or not they have ext4-like fine-grained control of defragmentation.
Burning the stuff now is a perfect example of future discounting: it values having energy now over having something that can be used and reused. It's also an example of tragedy of the commons: the energy utility goes to whoever uses it, climate change is a cost for everyone, and unregulated markets don't minimise those costs.