 | | | Swap/Memory problems with Domino R6, weird free -m | Swap/Memory problems with Domino R6, weird free -m 2005-10-27 - By Rainer Traut
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Hi,
we are seeing some performance problems on our domino servers running
fully patched EL3 U6 (2.4.21-37.ELsmp, 2GB RAM). It seems to be related
to the memory consumption of the domino http task esspecially when
running java agents.
The http part of domino is suddenly not responding for up to 3 minutes.
The server seems to constantly swap in, but also swap out when running
java agents.
vmstat 2 output:
3 0 1151516 55944 21916 1537612 44 0 208 176 178 1915 6
3 75 16
0 0 1151508 55848 21944 1538600 4 0 506 90 151 1909 4
1 88 7
0 1 1151452 54272 22008 1539912 18 0 664 168 175 1928 14
0 65 20
1 1 1151412 54032 22024 1540280 10 0 180 64 173 1956 10
1 69 20
0 0 1151256 52560 22084 1541612 56 0 676 60 182 1920 15
2 27 55
9 0 1151124 51432 22152 1542464 44 0 424 174 204 1900 17
1 66 15
0 0 1151044 49548 22200 1544248 152 0 1032 48 232 2037 12
0 31 56
free -m output:
total used free shared buffers cached
Mem: 2007 1988 18 0 22 1538
-/+ buffers/cache: 427 1579
Swap: 4000 1120 2879
top output of domino http task:
2955 notes 15 0 1453M 996M 782M S 99,9 49,6 216:49 0 http
So question is, why does free show 1.5G auf cache in memory? Is this normal?
My answer to the performace problem would be buying another 2 GB Ram
(http task alone uses 1453M?)
but the free output worries me.
Maybe someone can give me a link of howto interpret the memory
consumption of the http task memory consumption: 1453M 996M 782M
Thanks for any help
Rainer
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