[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] dom0 memory usage >1GB at startup (no domU's configured)
I think there is probably more time wasted through investigation of apparent memory issues in OSes than any other performance issue. Frequently these are non-issues. Here's what you should do: 1. Dedicate 512MB ram and a single VCPU to dom0 2. Restart and continue happily Sent from my iPhone On Apr 4, 2010, at 7:52 AM, stalks <xen-users@xxxxxxxxxxxxxxxxxx> wrote: On 04/04/2010 03:44, stalks wrote:Dear list, I have a new install of Debian Squeeze.I have followed the hints from the ParaVirtOps wiki page to grab Jeremy's kernel sources from kernel.org and compiled a 2.6.31.x (and 2.6.33.x) kernel.I have yet to install any significant software other than package "xen-hypervisor-3.4-amd64".The machine is a Core i7 920 with 8GB RAM.If I boot the plain kernel (without xen-3.4.gz) I get ~65MB ram usage shown in free -m.If I boot with full xen, bear in mind I have no domU's yet, I get the following:> free -mtotal used free shared buffers cached Mem: 7948 1412 6535 0 9 107-/+ buffers/cache: 1295 6652 Swap: 0 0 0 > xm info host : oracle release : 2.6.33.2-amd64-xen version : #1 SMP Sun Apr 4 00:21:54 BST 2010 machine : x86_64 nr_cpus : 8 nr_nodes : 1 cores_per_socket : 4 threads_per_core : 2 cpu_mhz : 2660hw_caps : bfebfbff: 28100800:00000000:00000340:0098e3bd:00000000:00000001:00000000virt_caps : hvm total_memory : 8183 free_memory : 2174 node_to_cpu : node0:0-7 node_to_memory : node0:2174 xen_major : 3 xen_minor : 4 xen_extra :xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0- x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64xen_scheduler : credit xen_pagesize : 4096 platform_params : virt_start=0xffff800000000000 xen_changeset : unavailable cc_compiler : gcc version 4.4.3 (Debian 4.4.3-2) cc_compile_by : waldi cc_compile_domain : debian.org cc_compile_date : Mon Mar 1 21:16:18 UTC 2010 xend_config_format : 4 > xm top xentop - 03:33:21 Xen 3.41 domains: 1 running, 0 blocked, 0 paused, 0 crashed, 0 dying, 0 shutdown Mem: 8379516k total, 6152576k used, 2226940k free CPUs: 8 @ 2660MHz(free -m): Over 1GB used inside dom0 already? (xm info): Only 2GB available for guests? (xm top): Over 6GB used?The only processes running outside of bare minimum are xinetd, sendmail, mdadm and ssh.I can stop xend and xendomains from starting, and I still have 1GB used at startup.The same setup on a lesser spec'd machine is working fine with ~140Mb used at boot. I've spent a few hours on this and am at a loss.Some info can be found at the following sources: http://www.nooblet.org/other/xen-users/lspci.txt http://www.nooblet.org/other/xen-users/lspci-vv.txt http://www.nooblet.org/other/xen-users/cpuinfo.txt http://www.nooblet.org/other/xen-users/grub.txt http://www.nooblet.org/other/xen-users/dmesg.txt http://www.nooblet.org/other/xen-users/meminfo.txt http://www.nooblet.org/other/xen-users/ps-awwux.txt Someone show me the light! Regards, Steve. _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-usersI have just tried 4.0.0 rc9 (xen-unstable.hg) and 2.6.32.10 with the same results._______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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