[OpenIndiana-discuss] Memory drains away....
Daniel Kjar
dkjar at elmira.edu
Fri Nov 4 13:49:39 UTC 2011
Yeah... I have tried setting that on other servers with no luck. I will
give it a shot again though.
My x2200 powercycled this morning (again at exactly 3:21am, another
problem I need to figure out) so it is only using 1gb or ram at the moment
Here is it's memstat
> ::memstat
Page Summary Pages MB %Tot
------------ ---------------- ---------------- ----
Kernel 107571 420 3%
ZFS File Data 135197 528 4%
Anon 53276 208 2%
Exec and libs 8032 31 0%
Page cache 8750 34 0%
Free (cachelist) 20737 81 1%
Free (freelist) 2810003 10976 89%
Total 3143566 12279
Physical 3083897 12046
and here is the memstat of my v40z
> ::memstat
Page Summary Pages MB %Tot
------------ ---------------- ---------------- ----
Kernel 649587 2537 8%
ZFS File Data 5775404 22560 70%
Anon 294014 1148 4%
Exec and libs 6715 26 0%
Page cache 40089 156 0%
Free (cachelist) 146536 572 2%
Free (freelist) 1359279 5309 16%
Total 8271624 32311
Physical 8271623 32311
What on earth ZFS wants with 22gb of ram is beyond me.
On 11/ 4/11 09:22 AM, Robin Axelsson wrote:
> I'm wondering if this memory drain may be due to zpool caching
> (L2ARC). You could try and see if it helps of you set a limit on this
> cache. The way that I understand it zpool/zfs uses quite a bit of RAM
> for caching.
>
> Robin.
>
> On 2011-11-04 14:13, Daniel Kjar wrote:
>> pmap seems to give me exactly what top tells me.
>>
>> There just doesn't look like 32gb of stuff running (more like 5gb
>> max)... although I have to laugh at how much memory Firefox seems to
>> need....
>>
>> 9409 eagle3 17 59 0 765M 739M sleep 3:24 0.37% VirtualBox
>> 9413 eagle3 21 39 0 291M 129M sleep 1:54 0.51% firefox
>> 2589 eagle2 21 59 0 245M 150M sleep 0:34 0.01% java
>> 5357 eagle2 1 59 0 112M 58M sleep 0:01 0.00% nautilus
>> 4179 eagle3 1 58 0 107M 98M sleep 1:03 0.03% Xnewt
>> 4470 eagle3 1 49 0 106M 39M sleep 0:01 0.00% nautilus
>> 3423 gdm 1 59 0 102M 35M sleep 0:00 0.00%
>> gnome-settings-
>> 5063 eagle2 1 59 0 98M 90M sleep 0:33 0.00% Xnewt
>> 3430 gdm 1 59 0 91M 26M sleep 0:57 0.01%
>> gdm-simple-gree
>> 4480 eagle3 1 59 0 91M 21M sleep 0:03 0.00%
>> isapython2.6
>> 4467 eagle3 1 59 0 90M 24M sleep 0:01 0.00%
>> gnome-panel
>> 5354 eagle2 1 59 0 90M 26M sleep 0:01 0.00%
>> gnome-panel
>> 4499 eagle3 1 59 0 86M 19M sleep 0:21 0.01%
>> mixer_applet2
>> 5388 eagle2 1 59 0 86M 19M sleep 0:15 0.01%
>> mixer_applet2
>> 4462 eagle3 1 59 0 86M 18M sleep 0:00 0.00%
>> gnome-settings-
>> 4486 eagle3 1 49 0 86M 18M sleep 0:00 0.00%
>> trashapplet
>> 3429 gdm 1 59 0 85M 18M sleep 0:01 0.00%
>> gnome-power-man
>> 5371 eagle2 1 59 0 84M 17M sleep 0:00 0.00%
>> wnck-applet
>> 4485 eagle3 1 59 0 84M 17M sleep 0:01 0.00%
>> wnck-applet
>> 4466 eagle3 1 59 0 84M 17M sleep 0:00 0.00% metacity
>> 5360 eagle2 1 59 0 83M 17M sleep 0:01 0.00%
>> gnome-power-man
>> 4471 eagle3 1 59 0 83M 16M sleep 0:01 0.00%
>> gnome-power-man
>> 5373 eagle2 1 59 0 79M 13M sleep 0:00 0.00%
>> trashapplet
>> 3428 gdm 1 59 0 78M 13M sleep 0:00 0.00% metacity
>> 637 mysql 9 59 0 53M 19M sleep 0:19 0.01% mysqld
>> 2452 root 23 59 -10 52M 26M sleep 0:45 0.02% java
>> 5362 eagle2 1 12 19 49M 33M sleep 0:02 0.00%
>> updatemanagerno
>> 4473 eagle3 1 12 19 49M 33M sleep 0:02 0.00%
>> updatemanagerno
>> 3367 root 4 59 0 47M 36M sleep 13:58 0.17% Xorg
>> 3332 root 1 59 0 39M 20M sleep 0:20 0.01% Xnewt
>>
>>
>> On 11/ 4/11 09:01 AM, Michael Schuster wrote:
>>> On Fri, Nov 4, 2011 at 13:56, Daniel Kjar<dkjar at elmira.edu> wrote:
>>>> Just serving sunray sessions but this happens whether anyone is
>>>> logged on
>>>> (none last night) or not. If somebody fires up something like a
>>>> virtual
>>>> machine it just speeds up the process.
>>> hmm ... (haven't done this in a while ...) I'd suggest you
>>> periodically (once every 10', perhaps) 'pmap' all processes and see
>>> which grow most, and then look at those in detail (perhaps using pmap
>>> -x, or starting those with LD_PRELOAD=/usr/lib/libumem.so ...)
>>>
>>> I'm sure other people have better ideas.
>>>
>>> HTH
>>> Michael
>>>> On 11/ 4/11 08:53 AM, Michael Schuster wrote:
>>>>> Hi,
>>>>>
>>>>> the obvious question to ask: what's the machine doing?
>>>>>
>>>>> Michael
>>>>>
>>>>> On Fri, Nov 4, 2011 at 13:49, Daniel Kjar<dkjar at elmira.edu> wrote:
>>>>>> I have always had this problem and it has never been resolved. Does
>>>>>> anyone
>>>>>> else see this and is there a cure?
>>>>>>
>>>>>> I have a v40z (although all of my boxes do it) 32gb ram 4 dual
>>>>>> core 885s.
>>>>>> When you restart the server it shows about 27 gb free. Over 12
>>>>>> hours
>>>>>> this
>>>>>> slowly degrades to about 1gb free and I start to notice a slow down.
>>>>>> Once
>>>>>> this drops down to 400mb stuff starts to really drag. Setting
>>>>>> the max
>>>>>> zfs
>>>>>> arc use does nothing. This is using TOP.
>>>>>>
>>>>>> If you look at the gnome performance monitor it will say you are
>>>>>> only
>>>>>> using
>>>>>> 2gb of ram yet there is degradation in performance (I assume for
>>>>>> slow
>>>>>> memory
>>>>>> clearing and reuse).
>>>>>>
>>>>>> CPU states: 94.3% idle, 1.3% user, 4.4% kernel, 0.0% iowait,
>>>>>> 0.0%
>>>>>> swap
>>>>>> Kernel: 7755 ctxsw, 139 trap, 13034 intr, 22379 syscall, 120 flt,
>>>>>> 136
>>>>>> pgin
>>>>>> Memory: 32G phys mem, 988M free mem, 16G total swap, 16G free swap
>>>>>>
>>>>>> and this dropped below 1gb while I was typing this message.
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Dr. Daniel Kjar
>>>>>> Assistant Professor of Biology
>>>>>> Division of Mathematics and Natural Sciences
>>>>>> Elmira College
>>>>>> 1 Park Place
>>>>>> Elmira, NY 14901
>>>>>> 607-735-1826
>>>>>> http://faculty.elmira.edu/dkjar
>>>>>>
>>>>>> "...humans send their young men to war; ants send their old ladies"
>>>>>> -E. O. Wilson
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> OpenIndiana-discuss mailing list
>>>>>> OpenIndiana-discuss at openindiana.org
>>>>>> http://openindiana.org/mailman/listinfo/openindiana-discuss
>>>>>>
>>>>>
>>>> --
>>>> Dr. Daniel Kjar
>>>> Assistant Professor of Biology
>>>> Division of Mathematics and Natural Sciences
>>>> Elmira College
>>>> 1 Park Place
>>>> Elmira, NY 14901
>>>> 607-735-1826
>>>> http://faculty.elmira.edu/dkjar
>>>>
>>>> "...humans send their young men to war; ants send their old ladies"
>>>> -E. O. Wilson
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> OpenIndiana-discuss mailing list
>>>> OpenIndiana-discuss at openindiana.org
>>>> http://openindiana.org/mailman/listinfo/openindiana-discuss
>>>>
>>>
>>>
>>
>
>
>
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--
Dr. Daniel Kjar
Assistant Professor of Biology
Division of Mathematics and Natural Sciences
Elmira College
1 Park Place
Elmira, NY 14901
607-735-1826
http://faculty.elmira.edu/dkjar
"...humans send their young men to war; ants send their old ladies"
-E. O. Wilson
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