On Mon, Feb 23, 2009 at 8:44 AM, Jeremy Chadwick <[email protected]> wrote: > On Mon, Feb 23, 2009 at 05:19:14PM +0100, Jasse Jansson wrote: >> On Feb 23, 2009, at 11:54 AM, Bill Hacker wrote: >>> Robert Luciani wrote: >>>> Freddie Cash wrote: >>>>> Booting FreeBSD 7.1 into a full KDE 4.2 >>>>> desktop takes less than 5 minutes. This is using 3x 120 GB SATA >>>>> drives in a single raidz1. >>>> Wow 5 minutes?! >>>> I don't think I'd be pushing it if I said that seems really slow. :S >>>> On such a fast machine I'd be irritated if it took over a minute to >>>> boot. On my >>>> 3Ghz Athlon X2 w/ 2Gb RAM, DragonFly boots vkernels, hosting >>>> services, and Gnome >>>> in about a minute with my two 500Gb hammer drives. >>> >>> One minute 45 seconds into Xfce4 for a VIA C7 @ 1.5 GHz, 2 GB DDR-533, >>> all-hammerfs on 2 natacontrol RAID1 'antique' 60 GB PATA UDMA 100 HDD. >>> >>> One minute 4 seconds into Xfce4 for an Intel T2130 @ 1.86 GHz 2 GB ? >>> RAM, 1 X 120 GB 2.5" HDD, DFLY on 33 GB ad0s1, UFS2 with one hammer >>> partition. >>> >>> RIADz looks to be the wall-time hog.... >> >> RAIDZ is known to be slow, even the main developers admit it if you >> force them to it. > > I'd recommend the individual seeing ~5 minute boot times try disabling > ZFS prefetching. Place vfs.zfs.prefetch_disable="1" in > /boot/loader.conf and reboot the machine.
Prefetch is disabled. The delays in the boot on this system are from using a USB stick for the / partition. From kernel load to desktop load is about 2 minutes. It takes about 2 minutes to get the kernel and modules loaded, though. However, my Debian Lenny station at work takes almost 5 minutes to get to a KDE 4.2 desktop, and that's using a single SATA harddrive with ext3 and xfs. Doesn't botther me, though, as I reboot maybe once per month, sometimes only once per quarter. I've never really understood the reasoning for 30-second boot times. -- Freddie Cash [email protected]
