Am 09.09.2014 um 10:29 schrieb Karel Zak: > On Sun, Sep 07, 2014 at 09:12:57AM +0200, drago01 wrote: >> On Sat, Sep 6, 2014 at 11:18 PM, Richard W.M. Jones <rjones@xxxxxxxxxx> wrote: >>> >>> Whenever my laptop boots, the hard disk is pegged at 100% and the >>> machine is unusable for another 2 minutes because of >>> "systemd-readahead", a misguided attempt to optimize the boot process. >>> Did we agree to this when we adopted systemd as an init replacement? >>> I don't remember init including all this other stuff. >> >> We had a readahead implementation before. > > Yep, I was maintainer and co-author of this package > >> On ssds it does not seem to >> help (nor hurt) much. On rotating media it used to help in the past >> but have not seen any recent numbers. > > after many optimizations and complete rewrite ..etc, I was not able to > see any really significant improvement. So.. my suggestion war to drop > the package from Fedora many years ago :-) > > IMHO it's better to optimize boot process and efficiently start only > really required services that load on boot all the unnecessary junk > and try to optimize the mess by readahead systemd-readahead combined with preload leads here on a fast RAID10 system that while the machine boots up and i go to my morning coffee / cigarette that after coming back and login my permanent used libraries and apps are already loaded in memory and on a machine with 16 GB RAM even Eclipse starts within 2 seconds on rotating media you can look at the file "/.readahead" what things are preloaded at boot
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