Date: Tue, 16 Aug 2016 16:05:30 +0200 From: rainer@ultra-secure.de To: Borja Marcos <borjam@sarenet.es> Cc: =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= <roger.pau@citrix.com>, freebsd-xen@freebsd.org Subject: Re: Is it me or is FreeBSD slower on Xen than Linux? Message-ID: <c6bdef83f2370173c067820565bf933e@ultra-secure.de> In-Reply-To: <872C5626-F58D-4F84-92AC-88B7352D1DDF@sarenet.es> References: <b0fdde5d7abf905ca6dfd176f028332e@ultra-secure.de> <20160816085455.46a5slqsbgauod5t@mac> <2a0a5ae2821551935de329b8665834be@ultra-secure.de> <20160816100605.la63x2ju5bmtdqhl@mac> <e62d4e94ec36fa859783ddc0aeb1aa28@ultra-secure.de> <20160816110759.6xlvxikw3tziahfd@mac> <c3a3a7da26cd1a6a114c03e823926272@ultra-secure.de> <20160816132938.d2i4u2y3scpzi2et@mac> <00D22384-BAA7-42E4-A486-4BE07562D011@sarenet.es> <8521aebaa093bcefe5956a71fd879140@ultra-secure.de> <872C5626-F58D-4F84-92AC-88B7352D1DDF@sarenet.es>
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Am 2016-08-16 15:48, schrieb Borja Marcos: >> On 16 Aug 2016, at 15:41, rainer@ultra-secure.de wrote: >> >> Am 2016-08-16 15:38, schrieb Borja Marcos: >>> >>> Maybe this is too obvious, my apologies in that case. But, how have >>> the filesystems been >>> created and mounted? Asynchronous? Synchronous? Journalling? >>> Softupdates in the case of >>> FreeBSD UFS? It can make quite a difference. >> >> >> FreeBSD >> >> /dev/ada2p1 on /home/db (ufs, local, soft-updates) >> >> >> >> Linux: >> /dev/mapper/system-lvm--home /home ext4 defaults 0 >> 2 >> >> >> What does "defaults" mean, BTW? > > That’s the mother of the lamb, we use to say in Spain ;) > > I guess it depends on the particular distribution, not just on being > ext4. Is there a tool similar to > dumpfs on Linux? Apparently, it's in cat /proc/mounts /dev/mapper/system-lvm--tmp /tmp ext4 rw,relatime,data=ordered 0 0 /dev/mapper/system-lvm--var /var ext4 rw,relatime,data=ordered 0 0 /dev/mapper/system-lvm--home /home ext4 rw,relatime,data=ordered 0 0 /dev/mapper/system-lvm--varlog /var/log ext4 rw,relatime,data=ordered 0 0 > You can also experiment with the FreeBSD options, maybe it will be a > quicker route. Try to mount as asynchronous. > In case it makes a big difference, you got it. But I don't really want to mount it asyncronous. Would it help to have journaling? Or is soft-updates already the "optimum"? https://www.freebsd.org/doc/handbook/configtuning-disk.html
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