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Re: Where has my memory gone? [message #32228 is a reply to message #32213]

Sun, 27 July 2008 12:19

gnutered
Messages: 12
Registered: April 2008

Junior Member

Thanks.

My output is thus:

$ sudo cat /proc/bc/101/resources && sudo vzmemcheck -v
            kmemsize                 12755129             46486929            134217728            147639500                    0
            lockedpages                     0                    0                  256                  256                    0
            privvmpages                133586               263359               235929               262144               208779
            shmpages                     9152                15568                21504                21504                    0
            numproc                        71                  159                  400                  400                    0
            physpages                   36617                85441                    0  9223372036854775807                    0
            vmguarpages                     0                    0                58982                65536                    0
            oomguarpages                92833               151046                58982                65536                    0
            numtcpsock                     34                  173                  360                  360                    0
            numflock                        9                   21                  188                  206                    0
            numpty                          0                    2                   16                   16                    0
            numsiginfo                      0                   78                  256                  256                    0
            tcpsndbuf                  378856              1724304              1720320              2703360                  113
            tcprcvbuf                  214840               710136              1720320              2703360                    0
            othersockbuf                27744               179904              1126080              2097152                    0
            dgramrcvbuf                     0                25960               262144               262144                    0
            numothersock                   29                   93                  360                  360                    0
            dcachesize                 458232               620679              3409920              3624960                    0
            numfile                      1688                 2534                 9312                 9312                    0
            numiptent                      14                   14                  128                  128                    0
Output values in %
veid        LowMem  LowMem     RAM MemSwap MemSwap   Alloc   Alloc   Alloc
              util  commit    util    util  commit    util  commit   limit
107           0.14    2.76    0.14    0.07    1.53    0.47    1.90    1.85
106           0.23    2.76    0.11    0.09    1.53    0.27    1.69    5.01
102           0.31    2.76    2.10    1.05    1.53    0.76    1.69    6.59
101           1.64   19.04    8.01    4.64    4.68    6.61    4.68   14.49
100           0.11    2.76    0.06    0.10    1.53    0.12    0.98    3.43
-------------------------------------------------------------------------
Summary:      2.42   30.10   10.42    5.95   10.79    8.23   10.94   31.38

I use this page to interpret these results: http://wiki.openvz.org/UBC_systemwide_configuration

Ratios on 101 (my big server) look dire. Ignore lowmem, as this is an AMD64.

RAM on VE 101 is 8.01. If I add up the numbers physpages*4096 + kmemsize + tcpsndbuf + tcprcvbuf + dgramrcvbuf + othersockbuf, I get 163359801, which is 155.8MB. For the ratio to be 8.01, the system thinks (or treats) my server like it has 19.45MB of RAM. Maths on VE 106 (arbitrarily chosen) shows similar.

Something isn't right.

I mention again that I'm running the FZA kernel (from the debian-systs repository), which I chose for reasons that no longer apply. I can go back to the slightly more official kernel if something is broken inside the kernel, but I'm keen to avoid reboots, as this is a production server on the other side of the world.

Other than that, what can I try?

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[Message index]

		Where has my memory gone? By: gnutered on Fri, 25 July 2008 14:49
		Re: Where has my memory gone? By: kenjy on Sat, 26 July 2008 16:23
		Re: Where has my memory gone? By: gnutered on Sun, 27 July 2008 12:19
		Re: Where has my memory gone? By: kenjy on Mon, 28 July 2008 05:23

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