Date: Tue, 17 Apr 2007 02:10:29 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Thomas Sparrevohn <Thomas.Sparrevohn@btinternet.com> Cc: freebsd-current@freebsd.org Subject: Re: Some comments on ZFS Message-ID: <20070417001029.GA3781@garage.freebsd.pl> In-Reply-To: <200704162021.51678.Thomas.Sparrevohn@btinternet.com> References: <804570.45403.qm@web63712.mail.re1.yahoo.com> <200704162021.51678.Thomas.Sparrevohn@btinternet.com>
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--r5Pyd7+fXNt84Ff3 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Apr 16, 2007 at 08:21:51PM +0100, Thomas Sparrevohn wrote: > On Monday 16 April 2007 20:05:55 Joerg t wrote: >=20 > > > > I'm also seeing a very odd behavior regarding memory consumption, > > with src and obj under zfs (different filesystems, same pool, compressi= on > > off) the system begin to wire all memory and swap tops 1GB. Maybe there= 's > > something trashing memory on zfs ? > > >=20 > There is something weird - Just ran same test again to see whether it > was a fluke - it still take 1h12 - however I saw the oppersite of Joerg. > The "systat -vm" Freemem was permently on 2,2GB - this on a 4GB > system that normally shows a 1,2GB - or less after a buildworld. >=20 > hmm. Pawel are there tests that can help?=20 You results are quite surprising. In my tests: CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (2992.72-MHz 686-class CPU) Origin =3D "GenuineIntel" Id =3D 0xf43 Stepping =3D 3 Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG= E,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=3D0x649d<SSE3,RSVD2,MON,DS_CPL,EST,CNXT-ID,CX16,xTPR> AMD Features=3D0x20000000<LM> Logical CPUs per core: 2 real memory =3D 1065242624 (1015 MB) avail memory =3D 1032900608 (985 MB) FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 Doing 'make -j4 buildworld': UFS+SU+noatime: 3335,72 real 3999,41 user 522,16 sys ZFS+noatime: 3604,06 real 3943,14 user 923,60 sys ZFS+noatime+nochecksum: vm.kmem_size=3D629145600 vm.kmem_size_max=3D629145600 vfs.zfs.arc_min=3D33554432 vfs.zfs.arc_max=3D503316480 vfs.zfs.mdcomp_disable=3D1 3531,34 real 3971,61 user 927,56 sys Both src/ and obj/ were on the same file system. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --r5Pyd7+fXNt84Ff3 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFGJBB1ForvXbEpPzQRAqRyAJ0UDd7nzRnGt39FFYu1soQmEIgmvACfRoy2 /ajYU/RvZwxYIQdECcH1cYY= =zJ1T -----END PGP SIGNATURE----- --r5Pyd7+fXNt84Ff3--
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