> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
> Sébastien CRAMATTE
> Sent: 13 October 2006 00:15
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] Why top command doesn't return correct
> memory amount (xentop see my 3gb..) ?
>
> Hello
>
> Why top command doesn't return correct memory amount (xentop see my
> 3gb..) ?
> I've compiled my kernel with 4GB high mem support ...
Because TOP and XENTOP show different things... Xentop shows how much memory is
used/available in all domains.
Top on any particular machine (such as domain0) will show the amount of memory
available in THAT virtual machine. Dom0 is a virtual machine just like any
other domain in xen - it's only special because it can access hardware and has
privileges to create/kill other domains etc.
If you compare the amoutn of memory in Dom0 in Xentop: 2050268 with the amoutn
shown by top 2050048, you can see that they aren't very far apart.
--
Mats
>
> #xentop
> xentop - 01:16:21 Xen 3.0.2-3
> 6 domains: 1 running, 5 blocked, 0 paused, 0 crashed, 0
> dying, 0 shutdown
> Mem: 3144744k total, 2947952k used, 196792k free CPUs: 2 @ 3000MHz
> NAME STATE CPU(sec) CPU(%) MEM(k) MEM(%) MAXMEM(k)
> MAXMEM(%) VCPUS NETS NETTX(k) NETRX(k) SSID
> Domain-0 -----r 162 0.0 2050268 65.2 no limit
> n/a 2 8 7605 61335 0
> ldap --b--- 36 0.0 200512 6.4 200704
> 6.4 1 1 2423 74941 0
> mail --b--- 65 0.0 200448 6.4 200704
> 6.4 1 1 5519 46455 0
> ns --b--- 245 0.0 130900 4.2 131072
> 4.2 1 1 8263 59350 0
> snmp --b--- 548 0.0 200488 6.4 200704
> 6.4 1 1 13894 48256 0
> www --b--- 34 0.0 130924 4.2 131072
> 4.2 1 1 1140 59911 0
>
> #top
> top - 01:16:44 up 12:21, 1 user, load average: 0.00, 0.00, 0.00
> Tasks: 70 total, 2 running, 66 sleeping, 2 stopped, 0 zombie
> Cpu(s): 0.0% us, 0.0% sy, 0.0% ni, 99.5% id, 0.5% wa,
> 0.0% hi, 0.0% si
> Mem: 2050048k total, 227024k used, 1823024k free,
> 33464k buffers
> Swap: 0k total, 0k used, 0k free,
> 57044k cached
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 1 root 16 0 1580 516 452 S 0.0 0.0 0:00.97 init
> 2 root RT 0 0 0 0 S 0.0 0.0 0:00.00
> migration/0
> 3 root 34 19 0 0 0 S 0.0 0.0 0:00.00
> ksoftirqd/0
> 4 root RT 0 0 0 0 S 0.0 0.0 0:00.03
> migration/1
> 5 root 34 19 0 0 0 S 0.0 0.0 0:00.00
> ksoftirqd/1
> 6 root 10 -5 0 0 0 S 0.0 0.0 0:00.54 events/0
> 7 root 10 -5 0 0 0 S 0.0 0.0 0:00.35 events/1
> 8 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 khelper
>
>
> it's little bite anoying for dom0 snmp monitoring ...
> any ideas or solution ?
>
> regars
>
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