Spam Admin wrote:
I have two mail servers running Spamassassin. One is running 3.1.9 and
the other 3.2.4, both with the same set of local rules, plus the
standard rules that come with each version.
The 'load' on the processors for 3.2.4 is about *4 times more *than the
'load' on 3.1.9.
I'm assuming the hardware is something resembling identical? Otherwise
it's really hard to compare.
-> CPU speed?
-> Memory?
-> SA child limit parameters?
3.2 sucks down more memory than 3.1; if the hardware is identical but
the machine running 3.1 shows a small swap usage, the 3.2 machine is
likely hitting swap a lot harder, causing your high load.
Do others have the same problem? Is this a typical change between the
pre 3.2.x versions and the current version?
I don't know about 4x from 3.1.x to 3.2.x, but I certainly avoided
upgrading from (patched-for-URI-RBLs) 2.64 for a LONG time because of
the memory load of 3.x.
Of course, more rules means more CPU load, but the memory load was a far
larger problem for me; any more memory use on the old machine would
have pushed the system into swap, which would have *really* killed
performance...
-kgd
