virtual memory management

[Zbigniew Szalbot]

Hello again,

>> The swap size usage grow so big probably because I started wget to
>> download an iso image and then WinSCP to grab it from the FBSD machine
>>  to my laptop. When I started wget, the swap usage was around 19% and
>> had been like that for many days.
>
> That should not cause such a thing (wget does not try to fit the whole
> file in memory, so it won't be pushing stuff out to swap).  Look at the
> process sizes in top to see what is using the swap space - something(s)
> that is still running is using that 482MB.

I do not see such a process:

  PID USERNAME   THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
21442 root         2  20    0   224M 26128K kserel   0:06  0.00% java
  896 mysql       16  20    0 70756K 14764K kserel 255:35  0.00% mysqld
98693 bind         1  96    0 32812K 32172K select   0:22  0.00% dnscache
 5035 www          1   4    0 28372K 15660K accept   5:05  1.86% httpd
 5026 www          1   4    0 28240K 15104K accept   4:46  0.00% httpd
 5065 www          1   4    0 28128K 15196K accept   4:29  0.00% httpd
 5030 www          1   4    0 27892K 15144K accept   4:21  0.00% httpd
 5126 www          1   4    0 27784K 14864K accept   4:20  0.00% httpd
 5029 www          1   4    0 27760K 14644K accept   4:22  0.00% httpd
 5027 www          1   4    0 27740K 15140K accept   4:30  0.00% httpd
 5028 www          1   4    0 27516K 14812K accept   4:03  0.00% httpd
95977 www          1   4    0 27216K 14532K accept   2:21  0.00% httpd
  703 root         1  96    0 16412K  2296K select   4:35  0.00% httpd
91014 mailman      1   8    0 11492K  1600K nanslp   6:00  0.00% python
91012 mailman      1   8    0 11024K  1560K nanslp   5:32  0.00% python
91010 mailman      1   8    0 11008K  1568K nanslp   5:23  0.00% python
91009 mailman      1   8    0 11008K  1552K nanslp   5:20  0.00% python

I have just restarted the java program as it used to hold 224M but it did
not help (and it is quite stable and never given me any problem). After
using Squirrel Mail for some time swap use went down to 71%

Mem: 258M Active, 49M Inact, 108M Wired, 16M Cache, 60M Buf, 61M Free
Swap: 512M Total, 440M Used, 71M Free, 86% Inuse

Thank you very much for your suggestion Kris!

-- 
Zbigniew Szalbot