I try to dump perf counter via admin socket, but I don't know what does
these numbers actual mean or does these numbers have any thing to do with
the different memory usage between arm and amd processors, so I attach the
dump log as attachment(mon.a runs on AMD processor, mon.c runs on ARM
processor).

PS: after days of running(mon.b is 6 day, mon.c is 3 day), the memory
consumption of both monitor running on arm board become stable, some what
about 600MB, here is the heap stats:

mon.btcmalloc heap stats:------------------------------------------------
MALLOC:      594258992 (  566.7 MiB) Bytes in use by application
MALLOC: +     19529728 (   18.6 MiB) Bytes in page heap freelist
MALLOC: +      3885120 (    3.7 MiB) Bytes in central cache freelist
MALLOC: +      6486528 (    6.2 MiB) Bytes in transfer cache freelist
MALLOC: +     12202384 (   11.6 MiB) Bytes in thread cache freelists
MALLOC: +      2889952 (    2.8 MiB) Bytes in malloc metadata
MALLOC:   ------------
MALLOC: =    639252704 (  609.6 MiB) Actual memory used (physical + swap)
MALLOC: +       122880 (    0.1 MiB) Bytes released to OS (aka unmapped)
MALLOC:   ------------
MALLOC: =    639375584 (  609.8 MiB) Virtual address space used
MALLOC:
MALLOC:          10231              Spans in use
MALLOC:             24              Thread heaps in use
MALLOC:           8192              Tcmalloc page size
------------------------------------------------
Call ReleaseFreeMemory() to release freelist memory to the OS (via
madvise()).
Bytes released to the

mon.ctcmalloc heap stats:------------------------------------------------
MALLOC:      593987584 (  566.5 MiB) Bytes in use by application
MALLOC: +     23969792 (   22.9 MiB) Bytes in page heap freelist
MALLOC: +      2172640 (    2.1 MiB) Bytes in central cache freelist
MALLOC: +      5874688 (    5.6 MiB) Bytes in transfer cache freelist
MALLOC: +      9268512 (    8.8 MiB) Bytes in thread cache freelists
MALLOC: +      2889952 (    2.8 MiB) Bytes in malloc metadata
MALLOC:   ------------
MALLOC: =    638163168 (  608.6 MiB) Actual memory used (physical + swap)
MALLOC: +       163840 (    0.2 MiB) Bytes released to OS (aka unmapped)
MALLOC:   ------------
MALLOC: =    638327008 (  608.8 MiB) Virtual address space used
MALLOC:
MALLOC:           9796              Spans in use
MALLOC:             14              Thread heaps in use
MALLOC:           8192              Tcmalloc page size
------------------------------------------------
Call ReleaseFreeMemory() to release freelist memory to the OS (via
madvise()).
Bytes released to the




On Fri, Nov 8, 2013 at 12:03 PM, Gregory Farnum <g...@inktank.com> wrote:

> I don't think this is anything we've observed before. Normally when a
> Ceph node is using more memory than its peers it's a consequence of
> something in that node getting backed up. You might try looking at the
> perf counters via the admin socket and seeing if something about them
> is different between your ARM and AMD processors.
> -Greg
> Software Engineer #42 @ http://inktank.com | http://ceph.com
>
>
> On Tue, Nov 5, 2013 at 7:21 AM, Yu Changyuan <rei...@gmail.com> wrote:
> > Finally, my tiny ceph cluster get 3 monitors, newly added mon.b and mon.c
> > both running on cubieboard2, which is cheap but still with enough cpu
> > power(dual-core arm A7 cpu, 1.2G) and memory(1G).
> >
> > But compare to mon.a which running on an amd64 cpu, both mon.b and mon.c
> > easily consume too much memory, so I want to know whether this is caused
> by
> > memory leak. Below is the output of 'ceph tell mon.a heap stats' and
> 'ceph
> > tell mon.c heap stats'(mon.c only start 12hr ago, while mon.a already
> > running for more than 10 days)
> >
> > mon.atcmalloc heap stats:------------------------------------------------
> > MALLOC:        5480160 (    5.2 MiB) Bytes in use by application
> > MALLOC: +     28065792 (   26.8 MiB) Bytes in page heap freelist
> > MALLOC: +     15242312 (   14.5 MiB) Bytes in central cache freelist
> > MALLOC: +     10116608 (    9.6 MiB) Bytes in transfer cache freelist
> > MALLOC: +     10432216 (    9.9 MiB) Bytes in thread cache freelists
> > MALLOC: +      1667224 (    1.6 MiB) Bytes in malloc metadata
> > MALLOC:   ------------
> > MALLOC: =     71004312 (   67.7 MiB) Actual memory used (physical + swap)
> > MALLOC: +     57540608 (   54.9 MiB) Bytes released to OS (aka unmapped)
> > MALLOC:   ------------
> > MALLOC: =    128544920 (  122.6 MiB) Virtual address space used
> > MALLOC:
> > MALLOC:           4655              Spans in use
> > MALLOC:             34              Thread heaps in use
> > MALLOC:           8192              Tcmalloc page size
> > ------------------------------------------------
> > Call ReleaseFreeMemory() to release freelist memory to the OS (via
> > madvise()).
> > Bytes released to the
> >
> >
> > mon.ctcmalloc heap stats:------------------------------------------------
> > MALLOC:      175861640 (  167.7 MiB) Bytes in use by application
> > MALLOC: +      2220032 (    2.1 MiB) Bytes in page heap freelist
> > MALLOC: +      1007560 (    1.0 MiB) Bytes in central cache freelist
> > MALLOC: +      2871296 (    2.7 MiB) Bytes in transfer cache freelist
> > MALLOC: +      4686000 (    4.5 MiB) Bytes in thread cache freelists
> > MALLOC: +      2758880 (    2.6 MiB) Bytes in malloc metadata
> > MALLOC:   ------------
> > MALLOC: =    189405408 (  180.6 MiB) Actual memory used (physical + swap)
> > MALLOC: +            0 (    0.0 MiB) Bytes released to OS (aka unmapped)
> > MALLOC:   ------------
> > MALLOC: =    189405408 (  180.6 MiB) Virtual address space used
> > MALLOC:
> > MALLOC:           3445              Spans in use
> > MALLOC:             14              Thread heaps in use
> > MALLOC:           8192              Tcmalloc page size
> > ------------------------------------------------
> > Call ReleaseFreeMemory() to release freelist memory to the OS (via
> > madvise()).
> > Bytes released to the
> >
> > The ceph versin is 0.67.4, compiled with tcmalloc enabled,
> > gcc(armv7a-hardfloat-linux-gnueabi-gcc) version 4.7.3 and I also try to
> dump
> > heap, but I can not find anything useful, below is a recent dump, output
> by
> > command "pprof --text /usr/bin/ceph-mon mon.c.profile.0021.heap". What
> extra
> > step should I  take to make the dump more meaningful?
> >
> > Using local file /usr/bin/ceph-mon.
> > Using local file mon.c.profile.0021.heap.
> > Total: 149.3 MB
> >    146.2  97.9%  97.9%    146.2  97.9% 00000000b6a7ce7c
> >      1.4   0.9%  98.9%      1.4   0.9% std::basic_string::_Rep::_S_create
> > ??:0
> >      1.4   0.9%  99.8%      1.4   0.9% 00000000002dd794
> >      0.1   0.1%  99.9%      0.1   0.1% 00000000b6a81170
> >      0.1   0.1%  99.9%      0.1   0.1% 00000000b6a80894
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a7e2ac
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a81410
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000367450
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000001d4474
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000028847c
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a7e8d8
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000020c80c
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000028bd20
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a63248
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a83478
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a806f0
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000002eb8b8
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000024efb4
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000027e550
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a77104
> >      0.0   0.0% 100.0%      0.0   0.0% _dl_mcount ??:0
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000003673ec
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a7a91c
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000295e44
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a7ee38
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000283948
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000002a53c4
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a7665c
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000002c4590
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a7e88c
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a8456c
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a76ed4
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a842f0
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a72bd0
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a73cf8
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a7100c
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a7dec4
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000035e6e8
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a78f68
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a7de9c
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000220528
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000035e7c0
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a6b2f8
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a80a04
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a62e7c
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a66f50
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a7e958
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a6cfb8
> >      0.0   0.0% 100.0%      0.0   0.0% leveldb::DBImpl::MakeRoomForWrite
> > (inline) ??:0
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000020797c
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a69de0
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000001d0af0
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000001d0ebc
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000002a0cd4
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000036909c
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000040b02c
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000001d0b68
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000392fa0
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a64404
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a791b4
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000001d9824
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000213928
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000002a0cb8
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000002a4fcc
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a725ac
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a66308
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a79068
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000000013b2
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000040b000
> >      0.0   0.0% 100.0%      0.1   0.1% 00000000004d839b
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000f29887
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000f3eb6b
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000f6e1cb
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000f6edab
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000f873ab
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000f8a26b
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000f8b0cb
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000f92dab
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000f9c96b
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000fa24bf
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000fadd8b
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000fb06ab
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000fb0d0b
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000fb494b
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000fbad6b
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000fbb2cb
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000fbea6b
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000fed0eb
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000000fed69b
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000129920b
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000014250eb
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000166cfc5
> >      0.0   0.0% 100.0%      0.1   0.1% 000000000166d711
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000003531d2b
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000379adbb
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000004e888fb
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000004e894ab
> >      0.0   0.0% 100.0%      0.0   0.0% 0000000004e8951b
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000060146d3
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000601482f
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000060fcd2b
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000060fd33b
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000060fdfbb
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000a820749
> >      0.0   0.0% 100.0%      0.0   0.0% 000000000bfb1950
> >      0.0   0.0% 100.0%      0.0   0.0% 00000000b6a43f23
> >      0.0   0.0% 100.0%      0.0   0.0% __clone ??:0
> >      0.0   0.0% 100.0%      0.0   0.0% leveldb::DBImpl::MakeRoomForWrite
> > ??:0
> >      0.0   0.0% 100.0%      0.2   0.1% std::num_put::do_put@806e4 ??:0
> >      0.0   0.0% 100.0%      0.4   0.2% std::num_put::do_put@80b44 ??:0
> >      0.0   0.0% 100.0%      0.1   0.1% std::num_put::do_put@80e00 ??:0
> >
> >
> > PS: there's a cubietruck
> > board(http://docs.cubieboard.org/products/start#cubietruck_cubieboard3)
> > released recently, which features a dual-core arm A7 cpu, 2G RAM, 1Gbit
> eth
> > port, and a sata 2.0 port, for $89, maybe suitable for cheap dedicate osd
> > server with single disk.
> >
> > --
> > Best regards,
> > Changyuan
> >
> > _______________________________________________
> > ceph-users mailing list
> > ceph-users@lists.ceph.com
> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> >
>



-- 
Best regards,
Changyuan

Attachment: mon_a.dump.json
Description: application/json

Attachment: mon_a.schema.json
Description: application/json

Attachment: mon_c.dump.json
Description: application/json

Attachment: mon_c.schema.json
Description: application/json

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