| Strange memory usage patterns... [message #35814] |
Fri, 24 April 2009 09:32  |
Wildy
Messages: 5
Registered: June 2007
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Junior Member |
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(x-posted and translated from Russian, since the activity there is very low)
We have a problem once again...
The server layout is: 2x Xeon 5140 (4 cores total), 16 GB RAM, SAS RAID 1. Installed are: OpenVZ, Debian (in the HN and VE alike), drbd. After some days of usage the machine started to show lack of free memory, and the most of it is Inactive in /proc/meminfo. After we've killed absolutely everything (with SysRQ+E!) the memory wouldn't free.
Inside of the node are various components (the HN is clean) - apache2+php, mysql5, mail, ejabberd, bind9.
Here are the stats.
uname -a
Linux real2 2.6.18-openvz-13-51.3d1-amd64 #1 SMP Tue Dec 25 22:50:42 MSK 2007 x86_64 GNU/Linux
cat /proc/meminfo
MemTotal: 16390204 kB
MemFree: 377592 kB
Buffers: 275640 kB
Cached: 3262192 kB
SwapCached: 0 kB
Active: 5873892 kB
Inactive: 9432296 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 16390204 kB
LowFree: 377592 kB
SwapTotal: 7815612 kB
SwapFree: 7815576 kB
Dirty: 3328 kB
Writeback: 0 kB
AnonPages: 3613180 kB
Mapped: 73072 kB
Slab: 552916 kB
PageTables: 71704 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 16010712 kB
Committed_AS: 5950124 kB
VmallocTotal: 34359738364 kB
VmallocUsed: 303316 kB
VmallocChunk: 34359433888 kB
cat /proc/user_beancounters
Version: 2.5
uid resource held maxheld barrier limit failcnt
107: kmemsize 7472644 9994715 36845281 39078329 0
lockedpages 0 0 35 35 0
privvmpages 137614 139832 262144 262144 0
shmpages 18 18 8192 8192 0
dummy 0 0 0 0 0
numproc 25 40 239 239 0
physpages 117896 119132 0 9223372036854775807 0
vmguarpages 0 0 6144 9223372036854775807 0
oomguarpages 117896 119132 6144 9223372036854775807 0
numtcpsock 8 34 200 200 0
numflock 1 9 1000 1100 0
numpty 0 3 16 16 0
numsiginfo 0 4 256 256 0
tcpsndbuf 139520 514024 8388608 12582912 0
tcprcvbuf 131072 3511264 5582617 6343884 0
othersockbuf 83992 322008 1395653 4194304 0
dgramrcvbuf 0 44816 159835 159835 0
numothersock 39 56 1024 1024 0
dcachesize 307053 378828 1536000 1920000 0
numfile 871 1104 10000 10000 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
numiptent 10 10 5000 5000 0
106: kmemsize 4920770 7640718 33554432 33554432 0
lockedpages 0 0 32 32 0
privvmpages 52230 77929 262144 307200 0
shmpages 18 1026 8192 8192 0
dummy 0 0 0 0 0
numproc 22 40 100 120 0
physpages 37441 49031 0 9223372036854775807 0
vmguarpages 0 0 6144 9223372036854775807 0
oomguarpages 37441 49031 6144 9223372036854775807 0
numtcpsock 25 49 80 80 0
numflock 1 7 100 110 0
numpty 0 2 16 16 0
numsiginfo 0 6 256 256 0
tcpsndbuf 160328 543144 1048576 2097152 0
tcprcvbuf 722872 1809864 8388608 8388608 0
othersockbuf 2312 28472 132096 336896 0
dgramrcvbuf 0 10768 132096 132096 0
numothersock 2 12 80 80 0
dcachesize 264798 358581 1048576 1097728 0
numfile 656 948 4000 4500 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
dummy 0 0 0 0 0
numiptent 10 10 128 128 0
104: kmemsize 1360171 3342912 10485760 15728640 0
lockedpages 0 16 32 32 0
privvmpages 19210 33829 65536 65536 0
shmpages 0 1008 8192 8192 0
dummy 0 0 0 0 0
numproc 12 27 65 65 0
physpages 6562 11308 0 9223372036854775807 0
vmguarpages 0 0 6144 9223372036854775807 0
oomguarpages 6562 11308 6144 9223372036854775807 0
numtcpsock 6 11 80 80 0
numflock 1 5 100 110 0
numpty 0 2 16 16 0
numsiginfo 0 4 256 256 0
tcpsndbuf 0 30784 319488 524288 0
tcprcvbuf 98304 1057432 1048576 2097152 209
othersockbuf 23120 215808 212738 336896 35175
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