On Mon, Apr 16, 2007 at 08:21:51PM +0100, Thomas Sparrevohn wrote: > On Monday 16 April 2007 20:05:55 Joerg t wrote: > > > > > I'm also seeing a very odd behavior regarding memory consumption, > > with src and obj under zfs (different filesystems, same pool, compression > > off) the system begin to wire all memory and swap tops 1GB. Maybe there's > > something trashing memory on zfs ? > > > > 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. > > hmm. Pawel are there tests that can help? You results are quite surprising. In my tests: CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (2992.72-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0xf43 Stepping = 3 Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=0x649d<SSE3,RSVD2,MON,DS_CPL,EST,CNXT-ID,CX16,xTPR> AMD Features=0x20000000<LM> Logical CPUs per core: 2 real memory = 1065242624 (1015 MB) avail memory = 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=629145600 vm.kmem_size_max=629145600 vfs.zfs.arc_min=33554432 vfs.zfs.arc_max=503316480 vfs.zfs.mdcomp_disable=1 3531,34 real 3971,61 user 927,56 sys Both src/ and obj/ were on the same file system. -- Pawel Jakub Dawidek http://www.wheel.pl pjd_at_FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am!
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