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Posted to server-dev@james.apache.org by "Noel J. Bergman" <no...@devtech.com> on 2002/10/31 00:41:23 UTC
memory, memory, who's got the memory
Folks,
I am trying to find out what is happening to some memory. Let me explain.
The test is running James with Sun JVM 1.4.1 on RH 6.2 (2.2.17-14) with
mysql 3.23.42.
When I run free the first time, james and mysql are loaded, but have not
run. Then I start running Russell Coker's postal test, and take period
checks. I have removed all the first and last. Next, I stop postal, wait a
few minutes, and take another look. Next I shutdown james, and check the
memory. Finally I stop mysql, restart both mysql and james, and compare
that memory (from cleanly having shutdown both james and mysql), with the
original values from the system.
As best I can tell, free memory is still not being recovered. TOP doesn't
show it as being held by any particular process. So where is it? What am I
missing (other than memory)? :-)
--- Noel
----------------- james already loaded
$ free
total used free shared buffers cached
Mem: 257576 175256 82320 150920 5232 57240
-/+ buffers/cache: 112784 144792
Swap: 265032 0 265032
----------------- start postal
$ free
total used free shared buffers cached
Mem: 257576 184180 73396 151060 5552 57292
-/+ buffers/cache: 121336 136240
Swap: 265032 0 265032
$ free
total used free shared buffers cached
Mem: 257576 220260 37316 152452 18532 57336
-/+ buffers/cache: 144392 113184
Swap: 265032 0 265032
----------------- stop postal
$ date && free
Wed Oct 30 18:07:57 EST 2002
total used free shared buffers cached
Mem: 257576 220368 37208 152452 18576 57320
-/+ buffers/cache: 144472 113104
Swap: 265032 0 265032
----------------- stop james
$ date && free
Wed Oct 30 18:09:14 EST 2002
total used free shared buffers cached
Mem: 257576 190008 67568 142352 18576 57320
-/+ buffers/cache: 114112 143464
Swap: 265032 0 265032
----------------- restart mysql and james
$ date && free
Wed Oct 30 18:13:45 EST 2002
total used free shared buffers cached
Mem: 257576 206512 51064 152308 18600 57340
-/+ buffers/cache: 130572 127004
Swap: 265032 0 265032
----------------- original james
$ free
total used free shared buffers cached
Mem: 257576 175256 82320 150920 5232 57240
-/+ buffers/cache: 112784 144792
Swap: 265032 0 265032
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