On Mon, 12 Jul 2010 10:48:36 +0800
<ben_ian@xxxxxxxxxxxx> wrote:
> Hi Mukesh,
> I had a different result on dom0 memory allocation report by xentop
> and top. The difference is usually around 7XXMB, and xentop is always
> reported fewer.
>
> ------------------------------------------
> For example, (xentop vs top => 1177508k vs 1960880k)
>
> xentop - 12:24:17 Xen 4.0.0
> 5 domains: 1 running, 4 blocked, 0 paused, 0 crashed, 0 dying, 0
> shutdown Mem: 41879780k total, 41845196k used, 34584k free CPUs: 8
> @ 2533MHz NAME STATE CPU(sec) CPU(%) MEM(k) MEM(%) MAXMEM(k)
> MAXMEM(%) VCPUS NETS NETTX(k) NETRX(k) VBDS VBD_OO VBD_RD VBD_WR
> VBD_RSECT VBD_WSECT SSID centOS --b--- 27 1.6
> 10489824 25.0 10489856 25.0 1 0 0 0
> 1 0 0 0 0 0 0 centOS4
> --b--- 8 1.5 8392672 20.0 8392704 20.0
> 1 1 0 0 1 0 0 0 0
> 0 0 Domain-0 -----r 184 11.5 1177508 2.8 no
> limit n/a 8 0 0 0 0 0 0
> 0 0 0 0 win2003 --b--- 8 0.2
> 10489824 25.0 10489856 25.0 1 1 0 0
> 1 0 0 0 0 0 0 winxp
> --b--- 7 0.2 10489824 25.0 10489856 25.0
> 1 1 0 0 1 0 0 0 0
> 0 0
>
> ---
> top - 12:24:48 up 16 min, 5 users, load average: 0.52, 0.38, 0.22
> Tasks: 226 total, 3 running, 223 sleeping, 0 stopped, 0 zombie
> Cpu(s): 0.5%us, 0.8%sy, 0.0%ni, 96.4%id, 2.2%wa, 0.0%hi,
> 0.0%si, 0.1%st Mem: 1960880k total, 1922052k used, 38828k
> free, 6528k buffers Swap: 51199992k total, 0k used,
> 51199992k free, 272924k cached
>
> ---------------------------------------------------------------------------
>
>
>
> I collect this result on Fedora12+kernel 2.6.32+xen4.0.0, and this
> will cause a kernel crash on my system when I try to enable
> ballooning and balloon one more 768MB dom-U under the upper example's
> status(dom0_men=1024)
>
> Do you have any idea what might cause this result??
> PS: Under kernel 2.6.18+ xen3.4.2, the two values are the same.
>
>
> Thanks very much!
> Regards,
> Ben Ian
>
Hi Ben,
Sorry, I've not dug into the details of the tools to see what's going
on. If I happen to figure it out, I'll let you know.
thanks
Mukesh
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