Dear list, after upgrading my server to 3GB (as it would not take 4GB :-(, the BIOS only counts to 3.5GB) I realised that when the Dom0 kernel boots, something reserves over 80M: Memory: 136060k/221184k available (1562k kernel code, 84432k reserved, 586k data , 128k init) Can someone enlight me what takes the memeory? The Xen hypervisor get''s about 48MB of it''s own. I''m running Debian 3.1 (sarge) on a dual-core AMD Athlon X2 and use the binary distribtion of Xen with my own kernel for Dom0. Actually the default Dom0 kernel, but with some more drivers enabled (e.g. ForcedETH, 3ware ...). The Board is a Tyan Tomcat K8E (S2865). server:~# xm info system : Linux host : server release : 2.6.12.6-xen0 version : #6 Mon Dec 19 15:43:38 UTC 2005 machine : x86_64 nr_cpus : 2 nr_nodes : 1 sockets_per_node : 1 cores_per_socket : 2 threads_per_core : 1 cpu_mhz : 2009 hw_caps : 178bfbff:e3d3fbff:00000000:00000010:00000001:00000000:00000003 total_memory : 3071 free_memory : 2816 xen_major : 3 xen_minor : 0 xen_extra : .0 xen_caps : xen-3.0-x86_64 platform_params : virt_start=0xffff800000000000 xen_changeset : Sun Dec 4 17:24:24 2005 +0100 8240:64cd054aa143 cc_compiler : gcc version 3.4.4 20050721 (Red Hat 3.4.4-2) cc_compile_by : xenod cc_compile_domain : cl.cam.ac.uk cc_compile_date : Sun Dec 4 20:18:33 GMT 2005 -- /"\ Goetz Bock at blacknet dot de -- secure mobile Linux everNETting \ / (c) 2006 Creative Commons, Attribution-ShareAlike 2.0 de X [ 1. Use descriptive subjects - 2. Edit a reply for brevity - ] / \ [ 3. Reply to the list - 4. Read the archive *before* you post ] _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Le mercredi 04 janvier 2006 à 18:08 +0100, Goetz Bock a écrit :> Dear list, > > after upgrading my server to 3GB (as it would not take 4GB :-(, the BIOS > only counts to 3.5GB) I realised that when the Dom0 kernel boots, > something reserves over 80M: > > Memory: 136060k/221184k available (1562k kernel code, 84432k reserved, 586k data > , 128k init) > > Can someone enlight me what takes the memeory? The Xen hypervisor get''s > about 48MB of it''s own.Hi, I have this same problem: I have two similar arch: (nforce4 + athlon 64 X2), the first one have 4GB, the second 2GB. xen is xen-3.0-testing, kernel 2.6.12.6 == 4GB: = Dentry cache hash table entries: 65536 (order: 7, 524288 bytes) Inode-cache hash table entries: 32768 (order: 6, 262144 bytes) Software IO TLB enabled: Aperture: 64 megabytes Bus range: 0x0000000078000000 - 0x000000007c000000 Kernel range: 0xffff88000157b000 - 0xffff88000557b000 Memory: 184444k/270336k available (1670k kernel code, 85260k reserved, 579k data, 152k init) # free total used free shared buffers cached Mem: 185076 104668 80408 0 17556 38412 -/+ buffers/cache: 48700 136376 Swap: 524280 0 524280 # cat /proc/iomem 00000000-0009fbff : System RAM 0009fc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000cebff : Video ROM 000cf000-000d07ff : Adapter ROM 000f0000-000fffff : System ROM 00100000-7efbffff : System RAM 7efc0000-7efcdfff : reserved 7efce000-7efeffff : reserved 7eff0000-7effffff : reserved d0000000-dfffffff : 0000:00:05.0 faaff800-faafffff : 0000:04:05.0 faaff800-faafffff : ohci1394 fc000000-fcffffff : 0000:00:05.0 fd000000-fdffffff : 0000:00:05.0 febd7000-febd7fff : 0000:00:14.0 febd7000-febd7fff : forcedeth febdc000-febdcfff : 0000:00:0f.0 febdc000-febdcfff : sata_nv febdd000-febddfff : 0000:00:0e.0 febdd000-febddfff : sata_nv febde000-febdefff : 0000:00:0b.0 febde000-febdefff : ohci_hcd febdfc00-febdfcff : 0000:00:0b.1 fec00000-fec00fff : reserved fee00000-feefffff : reserved ff780000-ffffffff : reserved == 2GB: = Dentry cache hash table entries: 65536 (order: 7, 524288 bytes) Inode-cache hash table entries: 32768 (order: 6, 262144 bytes) Software IO TLB enabled: Aperture: 2 megabytes Bus range: 0x000000000c200000 - 0x000000000c400000 Kernel range: 0xffff88000069d000 - 0xffff88000089d000 Memory: 248576k/270336k available (1670k kernel code, 21152k reserved, 579k data, 152k init) # free total used free shared buffers cached Mem: 249184 67040 182144 0 4588 19304 -/+ buffers/cache: 43148 206036 Swap: 524280 0 524280 # cat /proc/iomem 00000000-0009fbff : System RAM 0009fc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000cebff : Video ROM 000cf000-000d07ff : Adapter ROM 000f0000-000fffff : System ROM 00100000-7efbffff : System RAM 7efc0000-7efcdfff : reserved 7efce000-7efeffff : reserved 7eff0000-7effffff : reserved d0000000-dfffffff : 0000:00:05.0 faaff800-faafffff : 0000:04:05.0 faaff800-faafffff : ohci1394 fc000000-fcffffff : 0000:00:05.0 fd000000-fdffffff : 0000:00:05.0 febd7000-febd7fff : 0000:00:14.0 febd7000-febd7fff : forcedeth febd8000-febdbfff : 0000:00:10.1 <-- this line not exist on 4GB version febdc000-febdcfff : 0000:00:0f.0 febdc000-febdcfff : sata_nv febdd000-febddfff : 0000:00:0e.0 febdd000-febddfff : sata_nv febde000-febdefff : 0000:00:0b.0 febde000-febdefff : ohci_hcd febdfc00-febdfcff : 0000:00:0b.1 fec00000-fec00fff : reserved fee00000-feefffff : reserved ff780000-ffffffff : reserved _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Le mercredi 04 janvier 2006 à 18:08 +0100, Goetz Bock a écrit :> Dear list, > > after upgrading my server to 3GB (as it would not take 4GB :-(, the BIOS > only counts to 3.5GB) I realised that when the Dom0 kernel boots, > something reserves over 80M: > > Memory: 136060k/221184k available (1562k kernel code, 84432k reserved, 586k data > , 128k init) > > Can someone enlight me what takes the memeory? The Xen hypervisor get''s > about 48MB of it''s own.Hi, I have this same problem: I have two similar arch: (nforce4 + athlon 64 X2), the first one have 4GB, the second 2GB. xen is xen-3.0-testing, kernel 2.6.12.6 == 4GB: = Dentry cache hash table entries: 65536 (order: 7, 524288 bytes) Inode-cache hash table entries: 32768 (order: 6, 262144 bytes) Software IO TLB enabled: Aperture: 64 megabytes Bus range: 0x0000000078000000 - 0x000000007c000000 Kernel range: 0xffff88000157b000 - 0xffff88000557b000 Memory: 184444k/270336k available (1670k kernel code, 85260k reserved, 579k data, 152k init) # free total used free shared buffers cached Mem: 185076 104668 80408 0 17556 38412 -/+ buffers/cache: 48700 136376 Swap: 524280 0 524280 # cat /proc/iomem 00000000-0009fbff : System RAM 0009fc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000cebff : Video ROM 000cf000-000d07ff : Adapter ROM 000f0000-000fffff : System ROM 00100000-7efbffff : System RAM 7efc0000-7efcdfff : reserved 7efce000-7efeffff : reserved 7eff0000-7effffff : reserved d0000000-dfffffff : 0000:00:05.0 faaff800-faafffff : 0000:04:05.0 faaff800-faafffff : ohci1394 fc000000-fcffffff : 0000:00:05.0 fd000000-fdffffff : 0000:00:05.0 febd7000-febd7fff : 0000:00:14.0 febd7000-febd7fff : forcedeth febdc000-febdcfff : 0000:00:0f.0 febdc000-febdcfff : sata_nv febdd000-febddfff : 0000:00:0e.0 febdd000-febddfff : sata_nv febde000-febdefff : 0000:00:0b.0 febde000-febdefff : ohci_hcd febdfc00-febdfcff : 0000:00:0b.1 fec00000-fec00fff : reserved fee00000-feefffff : reserved ff780000-ffffffff : reserved == 2GB: = Dentry cache hash table entries: 65536 (order: 7, 524288 bytes) Inode-cache hash table entries: 32768 (order: 6, 262144 bytes) Software IO TLB enabled: Aperture: 2 megabytes Bus range: 0x000000000c200000 - 0x000000000c400000 Kernel range: 0xffff88000069d000 - 0xffff88000089d000 Memory: 248576k/270336k available (1670k kernel code, 21152k reserved, 579k data, 152k init) # free total used free shared buffers cached Mem: 249184 67040 182144 0 4588 19304 -/+ buffers/cache: 43148 206036 Swap: 524280 0 524280 # cat /proc/iomem 00000000-0009fbff : System RAM 0009fc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000cebff : Video ROM 000cf000-000d07ff : Adapter ROM 000f0000-000fffff : System ROM 00100000-7efbffff : System RAM 7efc0000-7efcdfff : reserved 7efce000-7efeffff : reserved 7eff0000-7effffff : reserved d0000000-dfffffff : 0000:00:05.0 faaff800-faafffff : 0000:04:05.0 faaff800-faafffff : ohci1394 fc000000-fcffffff : 0000:00:05.0 fd000000-fdffffff : 0000:00:05.0 febd7000-febd7fff : 0000:00:14.0 febd7000-febd7fff : forcedeth febd8000-febdbfff : 0000:00:10.1 <-- this line not exist on 4GB version febdc000-febdcfff : 0000:00:0f.0 febdc000-febdcfff : sata_nv febdd000-febddfff : 0000:00:0e.0 febdd000-febddfff : sata_nv febde000-febdefff : 0000:00:0b.0 febde000-febdefff : ohci_hcd febdfc00-febdfcff : 0000:00:0b.1 fec00000-fec00fff : reserved fee00000-feefffff : reserved ff780000-ffffffff : reserved _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users