On Fri, 2017-06-23 at 00:37 +0200, drago01 wrote: > On Friday, June 23, 2017, Adam Williamson <adamwill@xxxxxxxxxxxxxxxxx> > wrote: > > > So, funny story: my todo list has this item, which I'm crossing off > > with this mail: > > > > compare f21 / f22 / f23 boot on rust: > > https://blogs.gnome.org/mcatanzaro/2016/01/31/on-boot-times/#comment-120 > > > > It's only been on my list since 2016-02-06, no big deal, right? > > However, never let it be said that I'm a liar! I *did* finally get > > around to doing it, plus I included F24, F25 and the current F26 > > nightly compose as well. > > > > I tested each by installing from the x86_64 Workstation live image to > > my test box, which has a low-end AMD CPU (A4-7300), 8GB of RAM, and a > > Seagate 500GB SATA hard disk (not an SSD). I created a user during the > > install (so first boot wouldn't hit gnome-initial-setup before gdm), > > then measured the boot time from hitting 'enter' on the bootloader > > screen to GDM appearing fully loaded. I then measured the time it took > > from hitting 'enter' on the password prompt to GNOME appearing fully > > loaded. Then I rebooted and did the same measurements again (to see if > > second boot differed significantly from first boot). I did not use > > encryption. > > > > The results were in contrast to mcatanzaro's from that blog post. I > > found no significant difference in boot times across F21-F25. With only > > one exception, pretty much every 'boot to GDM' measurement came out at > > 30 seconds, give or take a second or two, and every 'GDM to GNOME' > > measurement came out in the range of 6 to 8 seconds. > > > > The exception was the first boot of Fedora 21, which took a little over > > a minute. The second boot took 29 seconds, though, in line with all > > other tests. > > > > However, F26 does seem slightly slower than F21-F25. First boot to GDM > > for today's F26 nightly measured at 42 seconds. Second and third boot > > measured 39 seconds. GNOME load time was 8-9 seconds. Looking at the > > systemd-analyze info, I don't see any obvious single 'culprit', it > > seems more like approximately the same stuff is happening during boot, > > it's just all taking a bit longer. > > > > So I'm *still* not sure what's behind the very slow F23 boot Michael > > reported, but my test couldn't reproduce that slowness or show any > > significant difference between any of the releases from F21 to F25. The > > difference between F25 and F26 might be worth some independent re- > > testing and deeper analysis. > > > > Test with a non debug kernel? The 26 kernel is not a debug kernel, and hasn't been since 4.11.0-1 on 2017-05-01. Debugging is usually disabled permanently somewhere between Alpha and Beta in each cycle. -- Adam Williamson Fedora QA Community Monkey IRC: adamw | Twitter: AdamW_Fedora | XMPP: adamw AT happyassassin . net http://www.happyassassin.net _______________________________________________ desktop mailing list -- desktop@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to desktop-leave@xxxxxxxxxxxxxxxxxxxxxxx
