Performance of the domUs on my Pentium D 3ghz dom0 is pretty poor - for example, ssh'ing from a domU occasionally just pauses and cpu utilization on the domu goes down to 0. No discernible reason that I can see. I compared the output of 'xm list' against my other three dom0s, and saw that on the dom0s without performance problems, Domain-0 was in state "r-----" and the domUs were all in state "------" All of these machines are Athlon XP processors running either 4.0_BETA or 4.0_BETA2 and xen 3.0.3 with IDE disks. On the Pentium D dom0, though, Domain-0 is in state "r-----" (just like the Athlons) but all the domUs are in state "-b----". Except one. This computer has SATA disks, and was featured in the recent VLAN and uhci threads. It is running 4.0_BETA2 and xen 3.0.3. This is my first dual-core machine, and this may be normal, but I'd be surprised if it is. Does anyone have any idea why all the domUs would be blocked? And now, boring details on the dom0s: The problematic Pentium D: nialas# uname -a NetBSD nialas.dsrw.org 4.0_BETA2 NetBSD 4.0_BETA2 (XEN3_DOM0) #0: Thu Mar 29 03:33:37 PDT 2007 builds@wb31:/home/builds/ab/netbsd-4/i386/200703280002Z-obj/home/builds/ab/netbsd-4/src/sys/arch/i386/compile/XEN3_DOM0 i386 nialas# pkg_info | grep xenker xenkernel30-3.0.3 Xen3 Kernel nialas# xm list Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 64 1 r----- 8978.1 build-31 6 128 1 ------ 508.5 build-40beta2 7 128 1 -b---- 1927.6 chaos 8 128 1 -b---- 775.3 fawkes 15 256 1 -b---- 19.8 neuromancer 3 64 1 -b---- 365.2 radius-meus 12 64 1 -b---- 264.5 router-meus 2 64 1 -b---- 966.4 sprawl 4 256 1 -b---- 10147.9 straylight 5 256 1 -b---- 715.3 nialas# I should note that i'm not actually /doing/ anything on build-31 right now. I'm on chaos, writing this email, and router-meus is, obviously, routing this connection, but most of the other computers are generally idling right now. Why, of all computers, would build-31 be unblocked? On to the Athlon XPs... dim# uname -a NetBSD dim.dsrw.org 4.0_BETA2 NetBSD 4.0_BETA2 (XEN3_DOM0-vndbump_serial_pf_noacpi_noapic) #1: Mon Apr 2 21:26:15 CDT 2007 dlg%build-40beta2.dsrw.org@localhost:/usr/src/sys/arch/i386/compile/XEN3_DOM0-vndbump_serial_pf_noacpi_noapic i386 dim# pkg_info | grep xenker xenkernel30-3.0.3 Xen3 Kernel dim# xm list Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 64 1 r----- 4017.6 kirensk 2 256 1 ------ 9595.8 ordep 1 256 1 ------ 466.0 dim# nating# uname -a NetBSD nating.dsrw.org 4.0_BETA2 NetBSD 4.0_BETA2 (XEN3_DOM0-vndbump_serial_pf) #0: Wed Mar 7 00:40:06 CST 2007 dlg%build-40beta2.dsrw.org@localhost:/usr/src/sys/arch/i386/compile/XEN3_DOM0-vndbump_serial_pf i386 nating# pkg_info | grep xenker xenkernel30-3.0.3 Xen3 Kernel nating# xm list Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 64 1 r----- 1747.1 chiba 6 256 1 ------ 2256.7 nating# neunhee# uname -a NetBSD neunhee.dsrw.org 4.0_BETA NetBSD 4.0_BETA (XEN3_DOM0-vndbump_serial_pf) #0: Tue Nov 21 11:10:03 CST 2006 dlg%build-40.dsrw.org@localhost:/usr/src/sys/arch/i386/compile/XEN3_DOM0-vndbump_serial_pf i386 neunhee# pkg_info | grep xenker xenkernel30-3.0.2.2 Xen3 Kernel neunhee# xm list Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 64 1 r----- 2402.3 build-40beta 5 256 1 ------ 546.8 gaia 1 96 1 ------ 666.4 rosie 4 256 1 ------ 1399.1 spam 3 384 1 ------ 907.7 wintermute 2 64 1 ------ 713.2 neunhee# Thanks. --david
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