Hi Ryan, My ~700MB came from 'prtconf -v' and looking at the difference between physical and reported;
amup# prtconf | head -2 System Configuration: Sun Microsystems i86pc Memory size: 3396 Megabytes amup# Doing a little more digging with xm the numbers look a lot worse and don't seem to make much sense; sense in that prtconf is reporting more memory than xm dmesg is reporting as being allocated... An extract from 'xm dmesg' xVM version 3.0.4-1-xvm Latest ChangeSet: Tue Dec 04 09:56:10 2007 +0000 13231:f6074ad033f3 (XEN) Command line: /boot/amd64/xen.gz (XEN) Physical RAM map: (XEN) 0000000000000000 - 00000000000a0000 (usable) (XEN) 00000000000f0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 00000000dfe8cc00 (usable) (XEN) 00000000dfe8cc00 - 00000000dfe8ec00 (ACPI NVS) (XEN) 00000000dfe8ec00 - 00000000dfe90c00 (ACPI data) (XEN) 00000000dfe90c00 - 00000000e4000000 (reserved) (XEN) 00000000fec00000 - 00000000fed00400 (reserved) (XEN) 00000000fed20000 - 00000000feda0000 (reserved) (XEN) 00000000fee00000 - 00000000fef00000 (reserved) (XEN) 00000000ffb00000 - 0000000100000000 (reserved) (XEN) System RAM: 3582MB (3668144kB) Aside from the non-contiguous memory ranges (where did they go?) I have 0xDFE2CC00 usable memory, or 3582MB. 4096 - 3582 = 514MB lost before anything is allocated. A little later: (XEN) Dom0 alloc.: 000000000c000000->0000000010000000 (852864 pages to be allocated) So that means Dom0 only has 3331MB allocated to it (another 150MB gone). As I only have a Dom0 (couldn't get my linux of choice installed as a domU) all memory should be allocated to it. virsh dominfo 0 shows: Max memory: no limit Used memory: 3065856 kB This is 2994MB out of 4GB allocated to a single Dom0; it is interesting that prtconf and virsh don't agree on how much memory dom0 is using. I agree that I shouldn't be losing 700MB. Tomorrow given some time I'll re-test the ugen issue and log as a bug if it still holds. Is this memory issue something which should be reported as a bug or am I missing a subtlety with opensolaris & Xen's reporting & usage of memory? Thanks. This message posted from opensolaris.org _______________________________________________ xen-discuss mailing list [email protected]
